资料：Because of the biochemical reactions in your body that occur with every type of food you eat on a daily bases, some foods age you faster than your real age, while other foods help to fight aging.Three of the processes that go on inside your body that have a major impact on your rate of aging are called “glycation”, “inflammation” and “oxidation”.When we talk about aging, we’re not just talking about wrinkles on your skin or how thick your hair is, we’re also talking about factors that you can’t see, such as how well your organs function, and whether your joints are degrading.The passage is probably___.A.the preface of a book.B.an excerpt from a paper on healthC.a book reviewD.promotional materials for a book
资料：Because of the biochemical reactions in your body that occur with every type of food you eat on a daily bases, some foods age you faster than your real age, while other foods help to fight aging.
Three of the processes that go on inside your body that have a major impact on your rate of aging are called “glycation”, “inflammation” and “oxidation”.
When we talk about aging, we’re not just talking about wrinkles on your skin or how thick your hair is, we’re also talking about factors that you can’t see, such as how well your organs function, and whether your joints are degrading.
The passage is probably___.
Three of the processes that go on inside your body that have a major impact on your rate of aging are called “glycation”, “inflammation” and “oxidation”.
When we talk about aging, we’re not just talking about wrinkles on your skin or how thick your hair is, we’re also talking about factors that you can’t see, such as how well your organs function, and whether your joints are degrading.
The passage is probably___.
A.the preface of a book.
B.an excerpt from a paper on health
C.a book review
D.promotional materials for a book
B.an excerpt from a paper on health
C.a book review
D.promotional materials for a book
参考解析
解析：本题考查的是主旨大意。
【关键词】passage; probably
【主题句】第1自然段Because of the biochemical reactions in your body that occur with every type of food you eat on a daily bases, some foods age you faster than your real age, while other foods help to fight aging. 因为你每天吃的每一种食物而在你体内发生的生物化学反应，有些食物使你比你的实际年龄要老得快，而其他食物则有助于对抗衰老。
【解析】本题的问题是“本文可能选自哪？”。选项A意为“一本书的序言”；选项B意为“关于健康的论文的摘录”；选项C意为“书评”；选项D意为“一本书的宣传材料”。根据主题句可知，本文主要讲的是衰老，可能是从有关健康的文章中节选出来的，故选B。
【关键词】passage; probably
【主题句】第1自然段Because of the biochemical reactions in your body that occur with every type of food you eat on a daily bases, some foods age you faster than your real age, while other foods help to fight aging. 因为你每天吃的每一种食物而在你体内发生的生物化学反应，有些食物使你比你的实际年龄要老得快，而其他食物则有助于对抗衰老。
【解析】本题的问题是“本文可能选自哪？”。选项A意为“一本书的序言”；选项B意为“关于健康的论文的摘录”；选项C意为“书评”；选项D意为“一本书的宣传材料”。根据主题句可知，本文主要讲的是衰老，可能是从有关健康的文章中节选出来的，故选B。
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共用题干Tiny InvadersThe human body is truly amazing.It allows us to sense the world around us,to do work and have fun,and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much一until they get sick.The germs（致病菌）that make people sick are everywhere.You can't see them, but they're there.They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing.There are two types of germs:viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants.Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good.They can make you sick.Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first de-fense against germs.You can prevent some illnesses simply by washing,with soap and wa-ter.But germs can still enter the body through small cuts in the skin or through the mouth, eyes,and nose.Once germs are inside your body, your immune（免疫的）system tries to protect you.It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs!Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of germ.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back.That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune system strong.You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick.Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your antibodies attack it.After they kill germs,antibodies stay in the body.A:RightB:WrongC:Not mentioned
共用题干What Makes Me the Weight I Am?There's no easy answer to this question.Your genetic makeup,the physical traits that get passed down to you from your parents,plays a big part in determining your size and weight. ______(46)But if your parents are smaller than average,you may want to rethink that professional basketball career!The same goes for your body type.Have you ever heard someone say a person is"big boned"?It's a way of saying the person has a large frame,or skeleton.Big bones usually weigh more than small bones. ______(47) Like your height or body type,your genes have a lot to say about what your weight will be.But that's only part of the story.Being overweight can run in someone 's family , but it may not be because of their genes._______ (48 ) And even though some kids gain weight more easily than others , when they eat right and exercise , most kids can be a healthy and happy weight that's right for them.It's true the way you live can change the way you look.How much you weigh is a balance between the calories you eat and the calories you use. ______(49)If you spend your free time watching TV, your body won' t use as many calories as it would if you played basketball,skated,or went for a walk.If you are in balance,your weight will stay right for you as you grow.But if you eat more and exercise less,you may become overweight.______(50) ______(50)A:That's why it's possible for two kids with the same height but different weight,to both be the right weight.B:If you eat more calories than your body needs to use,you will gain too much weight.C:Poor eating and exercise habits also run in families and this may be the reason the members.of a family are overweight.D:However , many overweight people have difficulty reaching their healthy body weight.E:On the other hand, "you eat less and exercise more, you, may lose weight.F:If both your parents are tall,there is a good chance you＇II be tall.
共用题干Tiny InvadersThe human body is truly amazing. It allows us to sense the world around us,to do work and have fun, and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much-until they get sick.The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there. They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first defense against germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the body through small cuts in the skin or through the mouth,eyes,and nose.Once germs are inside your body , your immune（免疫的）system tries to protect you. It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs! Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind ofgerm.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After agerm is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back. That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune systerm strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick. Instead,they cause your body to make antibodies.If the same germ ever shows up again,then yourantibodies attack it.The heart contains the body's strongest muscle.A:RightB:WrongC:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing.It allows us to sense the world around us,to do work and have fun,and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much一until they get sick.The germs（致病菌）that make people sick are everywhere.You can't see them, but they're there.They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing.There are two types of germs:viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants.Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good.They can make you sick.Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first de-fense against germs.You can prevent some illnesses simply by washing,with soap and wa-ter.But germs can still enter the body through small cuts in the skin or through the mouth, eyes,and nose.Once germs are inside your body, your immune（免疫的）system tries to protect you.It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs!Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of germ.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back.That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune system strong.You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick.Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your antibodies attack it.Washing your skin can prevent some illnesses.A:RightB:WrongC:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing. It allows us to sense the world around us,to do work and have fun, and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much-until they get sick.The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there. They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first defense against germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the body through small cuts in the skin or through the mouth,eyes,and nose.Once germs are inside your body , your immune（免疫的）system tries to protect you. It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs! Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind ofgerm.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After agerm is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back. That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune systerm strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick. Instead,they cause your body to make antibodies.If the same germ ever shows up again,then yourantibodies attack it.Washing your skin can prevent some illnesses.A:RightB:WrongC:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing. It allows us to sense the world around us,to do work and have fun, and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much-until they get sick.The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there. They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first defense against germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the body through small cuts in the skin or through the mouth,eyes,and nose.Once germs are inside your body , your immune（免疫的）system tries to protect you. It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs! Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind ofgerm.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After agerm is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back. That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune systerm strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick. Instead,they cause your body to make antibodies.If the same germ ever shows up again,then yourantibodies attack it.Vaccines can make you sick.A:RightB:WrongC:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing.It allows us to sense the world around us,to do work and have fun,and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much一until they get sick.The germs（致病菌）that make people sick are everywhere.You can't see them, but they're there.They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing.There are two types of germs:viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants.Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good.They can make you sick.Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first de-fense against germs.You can prevent some illnesses simply by washing,with soap and wa-ter.But germs can still enter the body through small cuts in the skin or through the mouth, eyes,and nose.Once germs are inside your body, your immune（免疫的）system tries to protect you.It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs!Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of germ.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back.That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune system strong.You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick.Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your antibodies attack it.All bacteria cause illnesses.A:RightB:WrongC:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing. It allows us to sense the world around us,to do work and have fun, and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much-until they get sick.The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there. They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first defense against germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the body through small cuts in the skin or through the mouth,eyes,and nose.Once germs are inside your body , your immune（免疫的）system tries to protect you. It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs! Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind ofgerm.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After agerm is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back. That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune systerm strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick. Instead,they cause your body to make antibodies.If the same germ ever shows up again,then yourantibodies attack it.Viruses can only live inside people or animals.A:RightB:WrongC:Not mentioned
根据下面资料，回答Germs are everywhere. You can′t see them, but they are on your desk, on your computer, and even in the air! Like people, germs move around the world. They fly with us on planes. When food, clothes, and other things travel around the world, germs travel, too. Some germs are safe, but some are dangerous. Germs cause illnesses like colds and the flu. Warmer Weather Brings Germs The world′s weather is changing. Cooler countries are getting warmer, so insects from hot countries can move there. Some of these insects, like mosquitoes, carry dangerous germs. These germs cause headaches, fever, and can even kill people. Under Your Skin Your skin protects you from germs. It stops some germs, but not all. They can enter your body when you eat, or when you have a cut. Germs are on your hands, too. They enter your body when you touch your eyes, nose, or mouth. Your immune system (免疫系统) protects you, too. When germs get inside your body, your immune system finds and kills them. Special cells (细胞) move around your body and fight germs. They help you stay healthy. Other cells make antibodies. Antibodies help your body find and stop germs. What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away. Please fill in the blank with proper phrases to complete the title of the last paragraph. _______________________________________________________________________
根据下面资料，回答Germs are everywhere. You can′t see them, but they are on your desk, on your computer, and even in the air! Like people, germs move around the world. They fly with us on planes. When food, clothes, and other things travel around the world, germs travel, too. Some germs are safe, but some are dangerous. Germs cause illnesses like colds and the flu. Warmer Weather Brings Germs The world′s weather is changing. Cooler countries are getting warmer, so insects from hot countries can move there. Some of these insects, like mosquitoes, carry dangerous germs. These germs cause headaches, fever, and can even kill people. Under Your Skin Your skin protects you from germs. It stops some germs, but not all. They can enter your body when you eat, or when you have a cut. Germs are on your hands, too. They enter your body when you touch your eyes, nose, or mouth. Your immune system (免疫系统) protects you, too. When germs get inside your body, your immune system finds and kills them. Special cells (细胞) move around your body and fight germs. They help you stay healthy. Other cells make antibodies. Antibodies help your body find and stop germs. What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away. What do antibodies do? _______________________________________________________________________
共用题干These Foods Help Improve Your MemoryThough sleeping is the best way to enhance your memory,the foods in your diet also play a role in how your memory works.People care their diets in terms of whether it helps them build muscle or lose fat,but they neglect to think of how food can improve memory.In addition to eating memory foods,right meal amount plays an important role in how well your memory functions.Too little food will cause you to be distracted by hunger,while too much of it will make you sleepy.Incorporating the right memory foods and proper portion sizes will give you maximum results.Here are some of the memory foods that you should incorporate into your diet to reap the benefits of memory enhancement.SalmonAs far as the protein is concerned,one of the best sources is salmon,for it is a good source ofomega-3 fatty acids,which are essential for brain function and development. Studies have suggested that supplementing with DHA,which is found in fish oil,is beneficial for the development and maintenance of memory performance.Sunflower seedsNuts have been regarded as a great way to get healthy fats into your diet,but many people forget that seeds fall into this category too.Sunflower seeds are a rich source of vitamin E,with one ounce providing 30%of your total daily intake.Vitamin E is one of the primary antioxidants that helps decrease the decline of memory as you get old,making it one nutrient you'll want to be sure to consume.Other sources of vitamin E include wheat germ oil,dry almond,safflower oil,hazelnut,peanut butter, spinach, broccoli, kiwi, and mango.BlueberriesWhile all berries provide a number of health-related benefits,blueberries in particular area memory-boosting powerhouse.They are considered a memo汀food because they contain a phytochemical that is especially important in reversing the age-related decline of memory，while having a positive influence on spatial working memory．Besides,blueberries rank low on the glycemic（血糖）index scale,making them a good fruit choice if you are trying to control your blood sugar level.Lean beefIncluding appropriate amount of lean beef in your diet is beneficial in enhancing your memory because of its iron content.While most men get enough iron in their diet,those who are on a strict diet and are sticking mostly to chicken,egg whites and fish as sources of protein may be running a bit low.Iron deficiency can have a significant effect on brain function and impair learning abilities, eventually putting you at an increased risk for developing Alzheimer's disease.So,be sure you aren't cutting out good sources of iron from your diet一even if you,re striving for maximum fat loss.Supplementing with DHA in sunflower seeds is good for the development and maintenance of memory performance.A:Right B:Wrong C:Not mentioned
共用题干These Foods Help Improve Your MemoryThough sleeping is the best way to enhance your memory,the foods in your diet also play a role in how your memory works.People care their diets in terms of whether it helps them build muscle or lose fat,but they neglect to think of how food can improve memory.In addition to eating memory foods,right meal amount plays an important role in how well your memory functions.Too little food will cause you to be distracted by hunger,while too much of it will make you sleepy.Incorporating the right memory foods and proper portion sizes will give you maximum results.Here are some of the memory foods that you should incorporate into your diet to reap the benefits of memory enhancement.SalmonAs far as the protein is concerned,one of the best sources is salmon,for it is a good source ofomega-3 fatty acids,which are essential for brain function and development. Studies have suggested that supplementing with DHA,which is found in fish oil,is beneficial for the development and maintenance of memory performance.Sunflower seedsNuts have been regarded as a great way to get healthy fats into your diet,but many people forget that seeds fall into this category too.Sunflower seeds are a rich source of vitamin E,with one ounce providing 30%of your total daily intake.Vitamin E is one of the primary antioxidants that helps decrease the decline of memory as you get old,making it one nutrient you'll want to be sure to consume.Other sources of vitamin E include wheat germ oil,dry almond,safflower oil,hazelnut,peanut butter, spinach, broccoli, kiwi, and mango.BlueberriesWhile all berries provide a number of health-related benefits,blueberries in particular area memory-boosting powerhouse.They are considered a memo汀food because they contain a phytochemical that is especially important in reversing the age-related decline of memory，while having a positive influence on spatial working memory．Besides,blueberries rank low on the glycemic（血糖）index scale,making them a good fruit choice if you are trying to control your blood sugar level.Lean beefIncluding appropriate amount of lean beef in your diet is beneficial in enhancing your memory because of its iron content.While most men get enough iron in their diet,those who are on a strict diet and are sticking mostly to chicken,egg whites and fish as sources of protein may be running a bit low.Iron deficiency can have a significant effect on brain function and impair learning abilities, eventually putting you at an increased risk for developing Alzheimer's disease.So,be sure you aren't cutting out good sources of iron from your diet一even if you,re striving for maximum fat loss.Vitamin E is beneficial for reducing the decline of memory as you age.A:Right B:Wrong C:Not mentioned
共用题干These Foods Help Improve Your MemoryThough sleeping is the best way to enhance your memory,the foods in your diet also play a role in how your memory works.People care their diets in terms of whether it helps them build muscle or lose fat,but they neglect to think of how food can improve memory.In addition to eating memory foods,right meal amount plays an important role in how well your memory functions.Too little food will cause you to be distracted by hunger,while too much of it will make you sleepy.Incorporating the right memory foods and proper portion sizes will give you maximum results.Here are some of the memory foods that you should incorporate into your diet to reap the benefits of memory enhancement.SalmonAs far as the protein is concerned,one of the best sources is salmon,for it is a good source ofomega-3 fatty acids,which are essential for brain function and development. Studies have suggested that supplementing with DHA,which is found in fish oil,is beneficial for the development and maintenance of memory performance.Sunflower seedsNuts have been regarded as a great way to get healthy fats into your diet,but many people forget that seeds fall into this category too.Sunflower seeds are a rich source of vitamin E,with one ounce providing 30%of your total daily intake.Vitamin E is one of the primary antioxidants that helps decrease the decline of memory as you get old,making it one nutrient you'll want to be sure to consume.Other sources of vitamin E include wheat germ oil,dry almond,safflower oil,hazelnut,peanut butter, spinach, broccoli, kiwi, and mango.BlueberriesWhile all berries provide a number of health-related benefits,blueberries in particular area memory-boosting powerhouse.They are considered a memo汀food because they contain a phytochemical that is especially important in reversing the age-related decline of memory，while having a positive influence on spatial working memory．Besides,blueberries rank low on the glycemic（血糖）index scale,making them a good fruit choice if you are trying to control your blood sugar level.Lean beefIncluding appropriate amount of lean beef in your diet is beneficial in enhancing your memory because of its iron content.While most men get enough iron in their diet,those who are on a strict diet and are sticking mostly to chicken,egg whites and fish as sources of protein may be running a bit low.Iron deficiency can have a significant effect on brain function and impair learning abilities, eventually putting you at an increased risk for developing Alzheimer's disease.So,be sure you aren't cutting out good sources of iron from your diet一even if you,re striving for maximum fat loss.If you're striving for maximum fat loss,you'd better cut out good sources of iron from your diet.A:Right B:Wrong C:Not mentioned
共用题干These Foods Help Improve Your MemoryThough sleeping is the best way to enhance your memory,the foods in your diet also play a role in how your memory works.People care their diets in terms of whether it helps them build muscle or lose fat,but they neglect to think of how food can improve memory.In addition to eating memory foods,right meal amount plays an important role in how well your memory functions.Too little food will cause you to be distracted by hunger,while too much of it will make you sleepy.Incorporating the right memory foods and proper portion sizes will give you maximum results.Here are some of the memory foods that you should incorporate into your diet to reap the benefits of memory enhancement.SalmonAs far as the protein is concerned,one of the best sources is salmon,for it is a good source ofomega-3 fatty acids,which are essential for brain function and development. Studies have suggested that supplementing with DHA,which is found in fish oil,is beneficial for the development and maintenance of memory performance.Sunflower seedsNuts have been regarded as a great way to get healthy fats into your diet,but many people forget that seeds fall into this category too.Sunflower seeds are a rich source of vitamin E,with one ounce providing 30%of your total daily intake.Vitamin E is one of the primary antioxidants that helps decrease the decline of memory as you get old,making it one nutrient you'll want to be sure to consume.Other sources of vitamin E include wheat germ oil,dry almond,safflower oil,hazelnut,peanut butter, spinach, broccoli, kiwi, and mango.BlueberriesWhile all berries provide a number of health-related benefits,blueberries in particular area memory-boosting powerhouse.They are considered a memo汀food because they contain a phytochemical that is especially important in reversing the age-related decline of memory，while having a positive influence on spatial working memory．Besides,blueberries rank low on the glycemic（血糖）index scale,making them a good fruit choice if you are trying to control your blood sugar level.Lean beefIncluding appropriate amount of lean beef in your diet is beneficial in enhancing your memory because of its iron content.While most men get enough iron in their diet,those who are on a strict diet and are sticking mostly to chicken,egg whites and fish as sources of protein may be running a bit low.Iron deficiency can have a significant effect on brain function and impair learning abilities, eventually putting you at an increased risk for developing Alzheimer's disease.So,be sure you aren't cutting out good sources of iron from your diet一even if you,re striving for maximum fat loss.People generally pay attention to whether food helps them build muscle or lose fat.A:Right B:Wrong C:Not mentioned
资料：Because of the biochemical reactions in your body that occur with every type of food you eat on a daily bases, some foods age you faster than your real age, while other foods help to fight aging.Three of the processes that go on inside your body that have a major impact on your rate of aging are called “glycation”, “inflammation” and “oxidation”.When we talk about aging, we’re not just talking about wrinkles on your skin or how thick your hair is, we’re also talking about factors that you can’t see, such as how well your organs function, and whether your joints are degrading.What may make you feel 10 years older than your real age?A.eating food on a daily basis.B.often eating the improper foods.C.biochemical reactions in your body.D.starting to eat the right foods.
资料：Because of the biochemical reactions in your body that occur with every type of food you eat on a daily bases, some foods age you faster than your real age, while other foods help to fight aging.Three of the processes that go on inside your body that have a major impact on your rate of aging are called “glycation”, “inflammation” and “oxidation”.When we talk about aging, we’re not just talking about wrinkles on your skin or how thick your hair is, we’re also talking about factors that you can’t see, such as how well your organs function, and whether your joints are degrading.According to the passage, aging is about all the following except--.A.the degrading jointsB.the thinning of your hairC.the good condition of your organsD.the wrinkles around your eyes
共用题干Energize Yourself and Your FamilyBeing healthy and active can help give you the energy to keep up with the demands of your busy life,take better care of yourseff,and be there for the people who depend on you.If you are overweight and inactive,you are more likely to get Type 2 diabetes,heart disease, high blood pressure,stroke and certain forms of cancer. You may improve your health if you move more and eat better!Here are some tips on how to get moving and eat well even when your life is busy.Try to do at least 30 minutes of moderate-intensity physical activity (like brisk walking) on most days of the week.It is not as hard as you may think,and you do not have to do the whole 30 minutes at one time.Give up the typical excuse such as"I don't have time for physical activity". You can"sneak"it into your day,a few minutes at a time.Get started by making small changes in your daily routine,for example,get off the bus or subway one stop early and walk the rest of the way. You do not have to do your entire workout in one block of time.Break it up一taking three 10- minute walks during your day may be easier than taking one 30-minute walk.Physical activities do not have to be chores.You can make them fun.Do things you enjoy,like walking,dancing,swimming,or playing sports.Walk or take an exercise class with a friend or a group.Be active with your kids-ride bikes or toss a softball.It may be hard to eat healthy if you do not have time to cook or your kids want fast food.Here are some ways that you and your family can eat better. Eat breakfast every day.Try a whole-grain cereal like raisin bran with fat-free or low-fat milk,or whole-wheat toast spread with jam. Enjoy some fruit with your breakfast too.Teach kids that healthy foods taste good.Choose fat-free or low-fat milk,yogurt,and cheese instead of full-fat dairy products.Choose whole-grain foods like whole-wheat bread,oatmeal,and brown rice more often than refined-grain foods,like white bread and white rice.Snack on fruits and vegetables. Keep a bowl of fruit on the table,bags of mini carrots in the refrigerator,and boxes of raisins in the cupboard.Do not keep a lot of sweets like cookies,candy,or soda in the house.Set goals.Move at your own pace.Celebrate your successes.Allow for setbacks.Let your family and friends help you.And keep trying一you can do it!Healthy foods do not taste good.A:Right B:Wrong C:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing. It allows us to sense the world around us,to do work and have fun, and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much一until they get sick.The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there. They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first defense against germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the body through small cuts in the skin or through the mouth,eyes,and nose.Once germs are inside your body, your immune（免疫的）system tries to protect you. It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs! Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of germ. Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back. That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune system strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick. Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your antibodies attack it.Vaccines can make you sick.A:RightB:WrongC:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing. It allows us to sense the world around us,to do work and have fun, and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much一until they get sick.The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there. They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first defense against germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the body through small cuts in the skin or through the mouth,eyes,and nose.Once germs are inside your body, your immune（免疫的）system tries to protect you. It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs! Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of germ. Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back. That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune system strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick. Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your antibodies attack it.After they kill germs,antibodies stay in the body.A:RightB: WrongC:Not mentioned
共用题干Energize Yourself and Your FamilyBeing healthy and active can help give you the energy to keep up with the demands of your busy life,take better care of yourseff,and be there for the people who depend on you.If you are overweight and inactive,you are more likely to get Type 2 diabetes,heart disease, high blood pressure,stroke and certain forms of cancer. You may improve your health if you move more and eat better!Here are some tips on how to get moving and eat well even when your life is busy.Try to do at least 30 minutes of moderate-intensity physical activity (like brisk walking) on most days of the week.It is not as hard as you may think,and you do not have to do the whole 30 minutes at one time.Give up the typical excuse such as"I don't have time for physical activity". You can"sneak"it into your day,a few minutes at a time.Get started by making small changes in your daily routine,for example,get off the bus or subway one stop early and walk the rest of the way. You do not have to do your entire workout in one block of time.Break it up一taking three 10- minute walks during your day may be easier than taking one 30-minute walk.Physical activities do not have to be chores.You can make them fun.Do things you enjoy,like walking,dancing,swimming,or playing sports.Walk or take an exercise class with a friend or a group.Be active with your kids-ride bikes or toss a softball.It may be hard to eat healthy if you do not have time to cook or your kids want fast food.Here are some ways that you and your family can eat better. Eat breakfast every day.Try a whole-grain cereal like raisin bran with fat-free or low-fat milk,or whole-wheat toast spread with jam. Enjoy some fruit with your breakfast too.Teach kids that healthy foods taste good.Choose fat-free or low-fat milk,yogurt,and cheese instead of full-fat dairy products.Choose whole-grain foods like whole-wheat bread,oatmeal,and brown rice more often than refined-grain foods,like white bread and white rice.Snack on fruits and vegetables. Keep a bowl of fruit on the table,bags of mini carrots in the refrigerator,and boxes of raisins in the cupboard.Do not keep a lot of sweets like cookies,candy,or soda in the house.Set goals.Move at your own pace.Celebrate your successes.Allow for setbacks.Let your family and friends help you.And keep trying一you can do it!Physical activities can be fun.A:Right B:Wrong C:Not mentioned
共用题干Energize Yourself and Your FamilyBeing healthy and active can help give you the energy to keep up with the demands of your busy life,take better care of yourseff,and be there for the people who depend on you.If you are overweight and inactive,you are more likely to get Type 2 diabetes,heart disease, high blood pressure,stroke and certain forms of cancer. You may improve your health if you move more and eat better!Here are some tips on how to get moving and eat well even when your life is busy.Try to do at least 30 minutes of moderate-intensity physical activity (like brisk walking) on most days of the week.It is not as hard as you may think,and you do not have to do the whole 30 minutes at one time.Give up the typical excuse such as"I don't have time for physical activity". You can"sneak"it into your day,a few minutes at a time.Get started by making small changes in your daily routine,for example,get off the bus or subway one stop early and walk the rest of the way. You do not have to do your entire workout in one block of time.Break it up一taking three 10- minute walks during your day may be easier than taking one 30-minute walk.Physical activities do not have to be chores.You can make them fun.Do things you enjoy,like walking,dancing,swimming,or playing sports.Walk or take an exercise class with a friend or a group.Be active with your kids-ride bikes or toss a softball.It may be hard to eat healthy if you do not have time to cook or your kids want fast food.Here are some ways that you and your family can eat better. Eat breakfast every day.Try a whole-grain cereal like raisin bran with fat-free or low-fat milk,or whole-wheat toast spread with jam. Enjoy some fruit with your breakfast too.Teach kids that healthy foods taste good.Choose fat-free or low-fat milk,yogurt,and cheese instead of full-fat dairy products.Choose whole-grain foods like whole-wheat bread,oatmeal,and brown rice more often than refined-grain foods,like white bread and white rice.Snack on fruits and vegetables. Keep a bowl of fruit on the table,bags of mini carrots in the refrigerator,and boxes of raisins in the cupboard.Do not keep a lot of sweets like cookies,candy,or soda in the house.Set goals.Move at your own pace.Celebrate your successes.Allow for setbacks.Let your family and friends help you.And keep trying一you can do it!If you do not have time to cook,you will not be healthy.A:Right B:Wrong C:Not mentioned
共用题干Tiny InvadersThe human body is truly amazing. It allows us to sense the world around us,to do work and have fun, and to move from place to place.In fact,the human body does its work so well that most people don't think about it very much一until they get sick.The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there. They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.How can you stop these tiny invaders from making you sick?Your skin is the first defense against germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the body through small cuts in the skin or through the mouth,eyes,and nose.Once germs are inside your body, your immune（免疫的）system tries to protect you. It looks for and destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs! Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of germ. Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back. That way you will not get the same illness twice.You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune system strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick. Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your antibodies attack it.Washing your skin can prevent some illnesses.A:RightB:WrongC:Not mentioned
共用题干Energize Yourself and Your FamilyBeing healthy and active can help give you the energy to keep up with the demands of your busy life,take better care of yourseff,and be there for the people who depend on you.If you are overweight and inactive,you are more likely to get Type 2 diabetes,heart disease, high blood pressure,stroke and certain forms of cancer. You may improve your health if you move more and eat better!Here are some tips on how to get moving and eat well even when your life is busy.Try to do at least 30 minutes of moderate-intensity physical activity (like brisk walking) on most days of the week.It is not as hard as you may think,and you do not have to do the whole 30 minutes at one time.Give up the typical excuse such as"I don't have time for physical activity". You can"sneak"it into your day,a few minutes at a time.Get started by making small changes in your daily routine,for example,get off the bus or subway one stop early and walk the rest of the way. You do not have to do your entire workout in one block of time.Break it up一taking three 10- minute walks during your day may be easier than taking one 30-minute walk.Physical activities do not have to be chores.You can make them fun.Do things you enjoy,like walking,dancing,swimming,or playing sports.Walk or take an exercise class with a friend or a group.Be active with your kids-ride bikes or toss a softball.It may be hard to eat healthy if you do not have time to cook or your kids want fast food.Here are some ways that you and your family can eat better. Eat breakfast every day.Try a whole-grain cereal like raisin bran with fat-free or low-fat milk,or whole-wheat toast spread with jam. Enjoy some fruit with your breakfast too.Teach kids that healthy foods taste good.Choose fat-free or low-fat milk,yogurt,and cheese instead of full-fat dairy products.Choose whole-grain foods like whole-wheat bread,oatmeal,and brown rice more often than refined-grain foods,like white bread and white rice.Snack on fruits and vegetables. Keep a bowl of fruit on the table,bags of mini carrots in the refrigerator,and boxes of raisins in the cupboard.Do not keep a lot of sweets like cookies,candy,or soda in the house.Set goals.Move at your own pace.Celebrate your successes.Allow for setbacks.Let your family and friends help you.And keep trying一you can do it!Choose whole-grain foods like brown rice more often than refined-grain foods like white rice.A:Right B:Wrong C:Not mentioned
共用题干Energize Yourself and Your FamilyBeing healthy and active can help give you the energy to keep up with the demands of your busy life,take better care of yourseff,and be there for the people who depend on you.If you are overweight and inactive,you are more likely to get Type 2 diabetes,heart disease, high blood pressure,stroke and certain forms of cancer. You may improve your health if you move more and eat better!Here are some tips on how to get moving and eat well even when your life is busy.Try to do at least 30 minutes of moderate-intensity physical activity (like brisk walking) on most days of the week.It is not as hard as you may think,and you do not have to do the whole 30 minutes at one time.Give up the typical excuse such as"I don't have time for physical activity". You can"sneak"it into your day,a few minutes at a time.Get started by making small changes in your daily routine,for example,get off the bus or subway one stop early and walk the rest of the way. You do not have to do your entire workout in one block of time.Break it up一taking three 10- minute walks during your day may be easier than taking one 30-minute walk.Physical activities do not have to be chores.You can make them fun.Do things you enjoy,like walking,dancing,swimming,or playing sports.Walk or take an exercise class with a friend or a group.Be active with your kids-ride bikes or toss a softball.It may be hard to eat healthy if you do not have time to cook or your kids want fast food.Here are some ways that you and your family can eat better. Eat breakfast every day.Try a whole-grain cereal like raisin bran with fat-free or low-fat milk,or whole-wheat toast spread with jam. Enjoy some fruit with your breakfast too.Teach kids that healthy foods taste good.Choose fat-free or low-fat milk,yogurt,and cheese instead of full-fat dairy products.Choose whole-grain foods like whole-wheat bread,oatmeal,and brown rice more often than refined-grain foods,like white bread and white rice.Snack on fruits and vegetables. Keep a bowl of fruit on the table,bags of mini carrots in the refrigerator,and boxes of raisins in the cupboard.Do not keep a lot of sweets like cookies,candy,or soda in the house.Set goals.Move at your own pace.Celebrate your successes.Allow for setbacks.Let your family and friends help you.And keep trying一you can do it!You have to do the whole 30 minutes at one time.A:Right B:Wrong C:Not mentioned
单选题What may help you feel better about your body?AObserving other healthy people around you.BLooking around at the models you see every day.CExercising every day to improve your body shape.DTalking to your parent or even your doctor.