Many people use wood stoves and fireplaces to heat their homes．Scientists have become worried about the smoke that they give off．Harmful chemicals are in the smoke．The smoke is causing air pollution．The pieces of pollution,called soot,are floating in the air．They are too tiny to see．Scientists must use a microscope to see them. Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces. The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad. Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.Why is it dangerous to burn too much wood?A.The fire could burn yoB.It's not healthy to be too warC.Harmful chemicals are released in the soD.The smoke is filled with un see able tiny piece
Many people use wood stoves and fireplaces to heat their homes．Scientists have become worried about the smoke that they give off．Harmful chemicals are in the smoke．The smoke is causing air pollution．The pieces of pollution,called soot,are floating in the air．They are too tiny to see．Scientists must use a microscope to see them.
Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces.
The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.
Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad.
Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.
Why is it dangerous to burn too much wood?
Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces.
The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.
Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad.
Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.
Why is it dangerous to burn too much wood?
A.The fire could burn yo
B.It's not healthy to be too war
C.Harmful chemicals are released in the so
D.The smoke is filled with un see able tiny piece
B.It's not healthy to be too war
C.Harmful chemicals are released in the so
D.The smoke is filled with un see able tiny piece
参考解析
解析：第一段。燃烧木材，排放出烟。烟中存有肉眼看不见的颗粒。这些颗粒是有害的化学物质。燃烧越多的木材，产生的烟就越多，释放的有害化学物质的颗粒也就越多。所以，燃烧过多的木材是危险的。
相关考题：
Many people believe that Americans love their cars almost more than anything else. They are (21) about cars. Not only is the car the (22) means of transportation in the States, it has (23) become a "plaything". (24) the time youngsters become fourteen years old or even (25) , they're likely to start (26) of having their own cars.In the USA, the (27) family, if the father is not (28) work, can afford to buy a new car every five years. However, many young people (29) after school in order to save money to buy a car. Learning to drive and getting a driver license may be one of the most exciting (30) of a young person's life. Driver (31) is one of the most popular courses. At the end of the course the student will (32) a driving test for a license. (33) many, that piece of paper means that they have grown up.In the United States, many men and women (34) to have cars. People use cars to go to work. (35) drive cars to go shopping, to take the children to school or for other activities.21.A. crazyB. carefulC. sureD. worried
EA rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃．Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate．Without the forest cover，these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns，potentially causing certain natural disasters all over the world．In the past hundred years，humans have begun destroying rainforests in search of three major resources(资源)：land for crops，wood for paper and other products，land for raising farm animals．This action affects the environment as a whole．For example，a lot of carbon dioxide (二氧化碳)in the air comes from burning the rainforests．People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.There are two main reasons for this．Firstly，when people cut down trees，generally they can only use the land for a year or two．Secondly，cutting large sections of rainforests may provide a good supply of wood right now，but in the long run it actually reduces the world’s wood supply．Rainforests are often called the world’s drug store．More than 25％ of the medicines we use today come from plants in rainforests．However，fewer than l％of rainforest plants have been examined for their medical value．It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests．72．Rainforests can help to adjust the climate because they ．A．reflect more heat into the atmosphereB．bring about high rainfall throughout the worldC．rarely cause the temperature to drop lower than l6℃D．reduce the effect of heat from the sun on the earth
In has been shown that children who smoke have certain characteristics.Compared with non-smokers they are more rebellious, their work deteriorates as they move up school, they are more likely to leave school early, and are more often delinquent and sexually precocious.Many of these features can be summarized as anticipation of adulthood.There are a number of factors which determine the onset of smoking, and these are largely psychological and social.They include availability of cigarettes, curiosity, rebelliousness, appearing tough, anticipation of adulthood, social confidence, the example of parents and teachers, and smoking by friends and older brothers and sisters.It should be much easier to prevent children from starting to smoke than to persuade adults to give up the habit once established, but in fact this has proved very difficult.The example set by people in authority, especially parents, health care workers, and teachers, is of prime importance.School rules should forbid smoking by children on the premises.This rule has been introduced at Summerhill School where I spent my schooldays.There is, however, a risk of children smoking just to rebel against the rules, and even in those schools which have tried to enforce no smoking by corporal punishment there is as much smoking as in other schools.Nevertheless, banning smoking is probably on balance beneficial.Teachers too should not smoke on school premises, at least not in front of children1、Which of the following is a common characteristic of young smokers?A、DisobedienceB、LazinessC、Lack of intelligenceD、Vanity2、Which of the following is NOT true according to the passage?A、Some children start to smoke out of curiosityB、Many children start to smoke because they want to appear mature.C、In order to have fewer children smokers, parents, teachers and health care workers should not smoke.D、It is not as difficult to prevent children from starting to smoke as to dissuade adults from smoking.3、The writer concludes that school rules to forbid smoking().A、should be introduced, for it really works at the school where he once studied.B、should not be introduced, for it may cause disturbance.C、should be introduced though it may not work effectively.D、needn't be introduced as long as teachers don't smoke in front of children.4、The author's attitude towards his writing is().A、objectiveB、emotionalC、criticalD、indifferent
共用题干第二篇Ceremonial bathing（仪式性的沐浴）has existed for thousands of years and has many forms, one of which is the sauna. The Finns have perfected the steam bath,or sauna,which may be taken, usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese, Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna"is the only true sauna experience and that all saunas should have at least a background odor（气味）or smoke. Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving. Those with muscle aches or arthritis（关节炎）may find that the heat relaxes muscles and relieves pain and inflammation（炎症）.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing. Saunas do not cure the common cold but they may help to alleviate congestion（减轻胸闷感）and speed recovery time. The body's core temperature usually rises 1—2 degrees while in the sauna,thus imitating a slight fever. The sauna could be considered to follow the old saying"feed a cold,starve a fever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 pounds of water per hour on average in a sauna. A good sweat removes dirt and grime （污垢；尘垢）from pores and gives the skin a healthy glow. The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system（心血管系统）gets a work out（运动，锻炼）as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100一150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice. The elderly and those with diabetes（糖尿病）should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months. Indeed,everyone just starting out should take short sessions（做某事的一段时间）at first to become accustomed to this type of bath.Who are advised not to take a sauna?A:Elderly peopleB:Pregnant womenC:People with heart troubleD:All of the above
共用题干第二篇Ceremonial bathing（仪式性的沐浴）has existed for thousands of years and has many forms, one of which is the sauna. The Finns have perfected the steam bath,or sauna,which may be taken, usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese, Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna"is the only true sauna experience and that all saunas should have at least a background odor（气味）or smoke. Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving. Those with muscle aches or arthritis（关节炎）may find that the heat relaxes muscles and relieves pain and inflammation（炎症）.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing. Saunas do not cure the common cold but they may help to alleviate congestion（减轻胸闷感）and speed recovery time. The body's core temperature usually rises 1—2 degrees while in the sauna,thus imitating a slight fever. The sauna could be considered to follow the old saying"feed a cold,starve a fever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 pounds of water per hour on average in a sauna. A good sweat removes dirt and grime （污垢；尘垢）from pores and gives the skin a healthy glow. The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system（心血管系统）gets a work out（运动，锻炼）as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100一150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice. The elderly and those with diabetes（糖尿病）should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months. Indeed,everyone just starting out should take short sessions（做某事的一段时间）at first to become accustomed to this type of bath.According to the fourth paragraph,sauna gives the skin a healthy glow because________.A:pores are cleaned by sweatB:water is lost by sweatingC:blood moves to the surface for heat exchangeD:the heart pumps harder and faster
共用题干第二篇Ceremonial bathing（仪式性的沐浴）has existed for thousands of years and has many forms, one of which is the sauna. The Finns have perfected the steam bath,or sauna,which may be taken, usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese, Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna"is the only true sauna experience and that all saunas should have at least a background odor（气味）or smoke. Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving. Those with muscle aches or arthritis（关节炎）may find that the heat relaxes muscles and relieves pain and inflammation（炎症）.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing. Saunas do not cure the common cold but they may help to alleviate congestion（减轻胸闷感）and speed recovery time. The body's core temperature usually rises 1—2 degrees while in the sauna,thus imitating a slight fever. The sauna could be considered to follow the old saying"feed a cold,starve a fever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 pounds of water per hour on average in a sauna. A good sweat removes dirt and grime （污垢；尘垢）from pores and gives the skin a healthy glow. The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system（心血管系统）gets a work out（运动，锻炼）as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100一150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice. The elderly and those with diabetes（糖尿病）should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months. Indeed,everyone just starting out should take short sessions（做某事的一段时间）at first to become accustomed to this type of bath.Ceremonial bathing__________.A:is called the sauna by FinnsB:is equivalent to the steam bathC:has various formsD:is held in an enclosed room
共用题干第二篇Ceremonial bathing（仪式性的沐浴）has existed for thousands of years and has many forms, one of which is the sauna. The Finns have perfected the steam bath,or sauna,which may be taken, usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese, Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna"is the only true sauna experience and that all saunas should have at least a background odor（气味）or smoke. Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving. Those with muscle aches or arthritis（关节炎）may find that the heat relaxes muscles and relieves pain and inflammation（炎症）.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing. Saunas do not cure the common cold but they may help to alleviate congestion（减轻胸闷感）and speed recovery time. The body's core temperature usually rises 1—2 degrees while in the sauna,thus imitating a slight fever. The sauna could be considered to follow the old saying"feed a cold,starve a fever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 pounds of water per hour on average in a sauna. A good sweat removes dirt and grime （污垢；尘垢）from pores and gives the skin a healthy glow. The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system（心血管系统）gets a work out（运动，锻炼）as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100一150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice. The elderly and those with diabetes（糖尿病）should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months. Indeed,everyone just starting out should take short sessions（做某事的一段时间）at first to become accustomed to this type of bath.What is understood by some people to be the true sauna experience?A:Saunas in underground cavesB:Saunas with smokeC:Saunas using wood burning stovesD:Saunas using electric stoves
共用题干第二篇Ceremonial bathing（仪式性的沐浴）has existed for thousands of years and has many forms, one of which is the sauna. The Finns have perfected the steam bath,or sauna,which may be taken, usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese, Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna"is the only true sauna experience and that all saunas should have at least a background odor（气味）or smoke. Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving. Those with muscle aches or arthritis（关节炎）may find that the heat relaxes muscles and relieves pain and inflammation（炎症）.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing. Saunas do not cure the common cold but they may help to alleviate congestion（减轻胸闷感）and speed recovery time. The body's core temperature usually rises 1—2 degrees while in the sauna,thus imitating a slight fever. The sauna could be considered to follow the old saying"feed a cold,starve a fever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 pounds of water per hour on average in a sauna. A good sweat removes dirt and grime （污垢；尘垢）from pores and gives the skin a healthy glow. The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system（心血管系统）gets a work out（运动，锻炼）as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100一150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice. The elderly and those with diabetes（糖尿病）should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months. Indeed,everyone just starting out should take short sessions（做某事的一段时间）at first to become accustomed to this type of bath.According to the third paragraph,saunas can do all of the following EXCEPT_________.A:reducing the chance of getting coldB:speeding recoveryC:relieving stressD:curing asthma
共用题干The Smog（烟雾）For over a month,Indonesia was in crisis.Forest fires raged out of control as the country suffered its worst drought for 50 years.Smoke from the fires mixed with sunlight and hot dry air to form a cloud of smog.This pollution quickly spread and within days it was hanging over neighbouring countries including Malaysia,Singapore and Thailand.When the smoke combined with pollution from factories and cars,it soon became poisonous（有毒的）.Dangerous amounts of CO became trapped under the smog and pollution levels rose. People wheezed（喘息）and coughed as they left the house and their eyes watered immediately.The smog made it impossible to see across streets and whole cities disappeared as grey soot（烟灰） covered everything. In some areas, water was hosed（用胶管浇）from high-rise city buildings to try and break up the smog.Finally,heavy rains,which came in November,put out the fires and cleared the air. But the environmental costs and health problems will remain.Many people from South-Eastern Asian cities already suffer from breathing huge amounts of car exhaust fumes（汽车排放的废气）and factory pollution. Breathing problems could well increase and many non-sufferers may have difficulties for the first time.Wildlife has suffered too.In lowland forests,elephants,deer,and tigers have been driven out of their homes by smog.But smog is not just an Asian problem.In fact,the word was first used in London in 1 905 to describe the mixture of smoke and thick fog.Fog often hung over the capital. Sometimes the smog was so thick and poisonous that people were killed by breathing problems or in accidents.About 4, 000 Londoners died within five days as a result of thick smog in 1952.The forest animals haven't been affected by the smog.A:Right B:Wrong C:Not mentioned
共用题干The Smog（烟雾）For over a month,Indonesia was in crisis.Forest fires raged out of control as the country suffered its worst drought for 50 years.Smoke from the fires mixed with sunlight and hot dry air to form a cloud of smog.This pollution quickly spread and within days it was hanging over neighbouring countries including Malaysia,Singapore and Thailand.When the smoke combined with pollution from factories and cars,it soon became poisonous（有毒的）.Dangerous amounts of CO became trapped under the smog and pollution levels rose. People wheezed（喘息）and coughed as they left the house and their eyes watered immediately.The smog made it impossible to see across streets and whole cities disappeared as grey soot（烟灰） covered everything. In some areas, water was hosed（用胶管浇）from high-rise city buildings to try and break up the smog.Finally,heavy rains,which came in November,put out the fires and cleared the air. But the environmental costs and health problems will remain.Many people from South-Eastern Asian cities already suffer from breathing huge amounts of car exhaust fumes（汽车排放的废气）and factory pollution. Breathing problems could well increase and many non-sufferers may have difficulties for the first time.Wildlife has suffered too.In lowland forests,elephants,deer,and tigers have been driven out of their homes by smog.But smog is not just an Asian problem.In fact,the word was first used in London in 1 905 to describe the mixture of smoke and thick fog.Fog often hung over the capital. Sometimes the smog was so thick and poisonous that people were killed by breathing problems or in accidents.About 4, 000 Londoners died within five days as a result of thick smog in 1952.The air-pollution index went up to 300 within a few days.A:Right B:Wrong C:Not mentioned
共用题干The Smog（烟雾）For over a month,Indonesia was in crisis.Forest fires raged out of control as the country suffered its worst drought for 50 years.Smoke from the fires mixed with sunlight and hot dry air to form a cloud of smog.This pollution quickly spread and within days it was hanging over neighbouring countries including Malaysia,Singapore and Thailand.When the smoke combined with pollution from factories and cars,it soon became poisonous（有毒的）.Dangerous amounts of CO became trapped under the smog and pollution levels rose. People wheezed（喘息）and coughed as they left the house and their eyes watered immediately.The smog made it impossible to see across streets and whole cities disappeared as grey soot（烟灰） covered everything. In some areas, water was hosed（用胶管浇）from high-rise city buildings to try and break up the smog.Finally,heavy rains,which came in November,put out the fires and cleared the air. But the environmental costs and health problems will remain.Many people from South-Eastern Asian cities already suffer from breathing huge amounts of car exhaust fumes（汽车排放的废气）and factory pollution. Breathing problems could well increase and many non-sufferers may have difficulties for the first time.Wildlife has suffered too.In lowland forests,elephants,deer,and tigers have been driven out of their homes by smog.But smog is not just an Asian problem.In fact,the word was first used in London in 1 905 to describe the mixture of smoke and thick fog.Fog often hung over the capital. Sometimes the smog was so thick and poisonous that people were killed by breathing problems or in accidents.About 4, 000 Londoners died within five days as a result of thick smog in 1952.Indonesia was in crisis because of the drought.A:Right B:Wrong C:Not mentioned
共用题干The Smog（烟雾）For over a month,Indonesia was in crisis.Forest fires raged out of control as the country suffered its worst drought for 50 years.Smoke from the fires mixed with sunlight and hot dry air to form a cloud of smog.This pollution quickly spread and within days it was hanging over neighbouring countries including Malaysia,Singapore and Thailand.When the smoke combined with pollution from factories and cars,it soon became poisonous（有毒的）.Dangerous amounts of CO became trapped under the smog and pollution levels rose. People wheezed（喘息）and coughed as they left the house and their eyes watered immediately.The smog made it impossible to see across streets and whole cities disappeared as grey soot（烟灰） covered everything. In some areas, water was hosed（用胶管浇）from high-rise city buildings to try and break up the smog.Finally,heavy rains,which came in November,put out the fires and cleared the air. But the environmental costs and health problems will remain.Many people from South-Eastern Asian cities already suffer from breathing huge amounts of car exhaust fumes（汽车排放的废气）and factory pollution. Breathing problems could well increase and many non-sufferers may have difficulties for the first time.Wildlife has suffered too.In lowland forests,elephants,deer,and tigers have been driven out of their homes by smog.But smog is not just an Asian problem.In fact,the word was first used in London in 1 905 to describe the mixture of smoke and thick fog.Fog often hung over the capital. Sometimes the smog was so thick and poisonous that people were killed by breathing problems or in accidents.About 4, 000 Londoners died within five days as a result of thick smog in 1952.Many Indonesians blamed the government for the drought.A:Right B:Wrong C:Not mentioned
共用题干SaunaCeremonial bathing has existed for.thousands of years and has many forms,one of which is the sauna.The Finns have perfected the steam bath,or sauna,which may be taken,usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese,Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna",is the only true sauna experience and that all saunas should have at least a background odor or smoke.Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving.Those with muscle aches or arthritis may find that the heat relaxes muscles and relieves pain and inflammation.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing.Saunas do not cure the common cold but they may help to alleviate congestion and speed recovery time.The body's core temperature usually rises 1-2 degrees while in the sauna,thus imitating a slight fever.The sauna could be considered to follow the old saying"feed a cold,starve aestarve a lever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 lbs of water per hour on average in a sauna.A good sweat removes dirt and grime from pores and gives the skin a healthy glow.The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system gets a work out as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100-150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice.The elderly and those with diabetes should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months.Indeed,everyone just starting out should take short sessions at first to become accustomed to this type of bath.What is understood by some people to be the true sauna experience?A:Saunas in underground caves. B:Saunas with smoke.C:Saunas using wood burning stoves. D:Saunas using electric stoves.
共用题干SaunaCeremonial bathing has existed for.thousands of years and has many forms,one of which is the sauna.The Finns have perfected the steam bath,or sauna,which may be taken,usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese,Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna",is the only true sauna experience and that all saunas should have at least a background odor or smoke.Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving.Those with muscle aches or arthritis may find that the heat relaxes muscles and relieves pain and inflammation.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing.Saunas do not cure the common cold but they may help to alleviate congestion and speed recovery time.The body's core temperature usually rises 1-2 degrees while in the sauna,thus imitating a slight fever.The sauna could be considered to follow the old saying"feed a cold,starve aestarve a lever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 lbs of water per hour on average in a sauna.A good sweat removes dirt and grime from pores and gives the skin a healthy glow.The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system gets a work out as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100-150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice.The elderly and those with diabetes should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months.Indeed,everyone just starting out should take short sessions at first to become accustomed to this type of bath.According to the fourth paragraph,sauna gives the skin a healthy glow because______.A:pores are cleaned by sweatB:water is lost by sweatingC:blood moves to the surface for heat exchangeD:the heart pumps harder and faster
共用题干SaunaCeremonial bathing has existed for.thousands of years and has many forms,one of which is the sauna.The Finns have perfected the steam bath,or sauna,which may be taken,usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese,Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna",is the only true sauna experience and that all saunas should have at least a background odor or smoke.Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving.Those with muscle aches or arthritis may find that the heat relaxes muscles and relieves pain and inflammation.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing.Saunas do not cure the common cold but they may help to alleviate congestion and speed recovery time.The body's core temperature usually rises 1-2 degrees while in the sauna,thus imitating a slight fever.The sauna could be considered to follow the old saying"feed a cold,starve aestarve a lever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 lbs of water per hour on average in a sauna.A good sweat removes dirt and grime from pores and gives the skin a healthy glow.The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system gets a work out as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100-150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice.The elderly and those with diabetes should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months.Indeed,everyone just starting out should take short sessions at first to become accustomed to this type of bath.Who are advised not to take a sauna?A:Elderly people. B:Pregnant women.C:People with heart trouble. D:All of the above.
Many people use wood stoves and fireplaces to heat their homes．Scientists have become worried about the smoke that they give off．Harmful chemicals are in the smoke．The smoke is causing air pollution．The pieces of pollution,called soot,are floating in the air．They are too tiny to see．Scientists must use a microscope to see them. Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces. The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad. Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.What could home owners do to comply with the new regulation?A.Write a letteB.Ask for permissioC.Use more electricitD.Install new low-soot fireplace
Many people use wood stoves and fireplaces to heat their homes．Scientists have become worried about the smoke that they give off．Harmful chemicals are in the smoke．The smoke is causing air pollution．The pieces of pollution,called soot,are floating in the air．They are too tiny to see．Scientists must use a microscope to see them. Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces. The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad. Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.Why is the air quality tested every day?A.Just in case someone askB.Scientists like to take testC.Scientists are not very busD.To keep track of pollution level
Many people use wood stoves and fireplaces to heat their homes．Scientists have become worried about the smoke that they give off．Harmful chemicals are in the smoke．The smoke is causing air pollution．The pieces of pollution,called soot,are floating in the air．They are too tiny to see．Scientists must use a microscope to see them. Small amounts of soot are safe,but large amounts can be dangerous．The govenment wants to limit this kind of pollution．It may stop people from using their fireplaces. The air is tested every day．When soot levels are high,more than 65 micrograms of soot per cubic meter,factories must stop making smoke．The government thinks that limit should be much lower.Factories produce the most smoke and soot．But the government thinks that all types of burning should be limited．The soot levels from factories and homes could be limited．Home owners may have to install new wood stoves that they comply with the new law．Or,they may not be able to bum on days when the air quality is bad. Residents of some towns are fined if they violate the burning ban．Scientists hope these new regulations will make the air cleaner and less harmful to breathe.What happens to some residents who bum too much wood?A.They could lose their homeB.They pay for the punishmenC.They get sick from the smokD.The fire could get out of contro
【题干】_____A.an extra large sauna and steam room can be used for players to relax in.B.The cardiovascular system gets a work out as the heart must pump harder and faster to move blood to the surface for heat exchange.C.The Japanese, Greeks, Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.D.The body's core temperature usually rises a 1-2 degrees while in the sauna, thus imitating a slight fever.E.Pregnant women should not take saunas, particularly in the first three months.F.A few people today say that the smoke sauna, "savusauna", is the only true sauna experience and that all saunas should have at least a background odor or smoke.
共用题干The Dangers of Secondhand SmokeMost people know that cigarette smoking is harmful to their health.Scientific research shows that it causes many kinds of diseases.In fact,many people who smoke get lung cancer. However,Edward Gilson has lung cancer,and he has never smoked cigarettes.He lives with his wife Evelyn,who has smoked about a pack of cigarettes a day throughout their marriage.________(46)No one knows for sure why Mr. Gilson has lung cancer. Nevertheless,doctors believe that secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers often breathe in the smoke from other people's cigarettes.________(47)The US Environmental Protection Agency reports that about 53,000 people die in the United States each year as a result of exposure to secondhand smoke.The smoke that comes from a lit cigarette contains many different poisonous chemicals.In the past, scientists did not think that these chemicals could harm a nonsmoker's health._________(48)They discovered that even nonsmokers had unhealthy amounts of these toxic chemicals in their bodies.As a matter of fact,almost all of us breathe tobacco smoke at times,whether we realize it or not. For example,we can not avoid secondhand smoke in restaurants,hotels and other public places.Even though many public places have nonsmoking areas,smoke flows in from the areas where smoking is permitted.It is even harder for children to avoid secondhand smoke._________(49)Research shows that chil- dren who are exposed to secondhand smoke are sick more often than children who live in homes where no one smokes and that the children of smokers are more than twice as likely to develop lung cancer when they are adults as are children of nonsmokers.The risk is even higher for children who live in homes where both parents smoke.People are becoming very aware of the dangers of secondhand smoke._________（50)__________（50）A:Recently,though,scientists changed their opinion after they studied a large group of nonsmokers.B:The Gilsons have been married for 35 years.C:This smoke is called secondhand smoke.D:However,secondhand smoke is dangerous to all people,old or young.E:As a result,they have passed laws which prohibit people from smoking in many public places.F: In the United States,nine million children under the age of five live in homes with at least one smoker.
问答题In this section, there is one passage followed by a summary. Read the passage carefully, and then complete the summary below by choosing a maximum of three words from the passage to fill in each of the blanks. Remember to write the answers on the answer sheet. Questions 1 to 5 are based on the following passage. Everyone knows about pollution in the environment. Water, air, and land are all polluted. This means that pollution is everywhere. Now, scientists are looking inside our bodies to find out about internal pollution. In 2003, the Environmental Working Group studied nine people to measure the chemicals in their bodies. These nine people had an average of 53 cancer-causing chemicals in their bodies. They also had an average of 62 chemicals that can damage the brain, and 55 that can harm babies in pregnant women. Even though a lot of chemicals were found in human bodies, the chemicals were found in small amounts. The amounts were small enough that they were probably not hurting the people. However, scientists are worried because most of these chemicals were created by humans. Most of these chemicals did not exist 75 years ago. This proves that we have not only polluted the world—we have polluted our own bodies! How does this pollution get into our bodies? We come into contact with many chemicals every day. For example, everyone uses soap, skin lotion, and shampoo. However, few people know that these products contain harmful chemicals, some of which may cause memory loss. Chemicals known as DEA (diethanolamine) and TEA (triethanolamine) may seep into the skin and stop us from absorbing a helpful nutrient called “choline”. Choline is a nutrient that plays a crucial role in the memory cell making process in the developing brain. Some people worry that every time we wash our hair, we are decreasing our memories. Everyone knows they should brush their teeth regularly, but recent research has shown that some toothpastes can cause cancer. Fluoride is a key ingredient in many toothpastes. However, studies show that fluoride does not really protect our teeth. In fact, fluoride has been connected with bone cancer and other diseases. While we are trying to save our smiles, we could be damaging our health. Women are probably exposed to more chemicals than men because they use more beauty products. Recently, harmful chemicals have been found in nail polish, hair spray, deodorant, and perfume. The chemicals are called “phthalates”. Studies on animals have shown that phthalates can damage the liver, the kidneys, and the lungs. Cosmetic companies say the amounts of phthalates in their products are safe, but consumer protection groups disagree. They say some women use so many products that the levels are actually high. So, the more women try to look beautiful, the more they could be harming their health. In a futuristic story by Ray Bradbury, a man found a pristine stream on a new planet. When he drank from the stream, he died! Why? His body was so polluted that pure water was a poison to him! Perhaps that is only science fiction, but it reminds us to take care of our bodies. We must find ways to reduce the pollution we absorb. Summary: Like our polluted environment, our bodies are no longer pollution-free. Scientists now know that there is pollution in our bodies. On 1 , we have 53 cancer-causing chemicals in our bodies. Even fluoride 2 with bone cancer and other diseases. Some common cosmetics contain small amounts of chemicals, which seep into our 3 when we use these products. They prevent us from absorbing the 4 our bodies need. So, it is 5 that we find ways to reduce the amount of chemicals in our bodies. We should remind our friends and families to take care of their bodies.
问答题Air quality in Britain has improved considerably in the last 30years. Total emissions of smoke in the air haverisen by over 85 per cent since 1950. The domestic (1)____smoking control program has been particularly important in (2)____achieving this result. London and other major cities are no (3)____longer have the dense smoke-laden “smogs” of the1950s, and in central London winter sunshine has (4)____increased about 70 per cent since 1958. (5)____ Since 1990, daily air pollution data from theBritish monitoring network has been made available (6)____to the public by the Department of the Environ-ment’s Air Quality Bulletins. These give the concen-trations of three main pollutants-ozone, nitrogendioxide and sulfur dioxide –and grade air qualityon a scale between “very weak” and “very (7)____good”. The information features in television andradio weather reports, appears in many national and (8)____local newspapers. Therefore, the data are available (9)____on a special free telephone number and on videotext systems. A comprehensive review of the issue of urbanair quality was published in January 1992. Threeindependent committees of which experts have been (10)____established to advise on different aspects of the problem, andwill set guidelines and targets for air quality. The network isalso being extended and upgraded at a cost of ￡10 million.
问答题Smoking bans in public places are becoming more and more common in China. Whether the right of the non-smoker to breathe in fresh air outweighs that of the smoker to smoke freely is a matter of opinion, manifesting itself in a heated smoking ban debate. The following are opinions from both sides on this issue. Read the excerpts carefully and write your response in about 300 words, in which you should: 1. summarize briefly the opinions from both sides, and then 2. give your comment. Marks will be awarded for content relevance, content sufficiency, organization and language quality. Failure to follow the above instructions may result in a loss of marks. A smoking ban is a public policy that includes criminal laws and health regulations that prohibit smoking in certain public places and workspaces. There are many reasons why smoking bans originated, but most of these have medical origins. Research has shown secondhand smoke is almost as harmful as smoking in and of itself. The effects of secondhand smoke are relatively the same as smoking. Lung disease, heart disease, bronchitis and asthma are common. Those who live in homes with smokers have a 20-30 percent higher risk of developing lung cancer than those who do not live with a smoker. Smoking bans are also imposed because they improve air quality in restaurants and other establishments. In Beijing, it is now illegal to smoke in all hospitality venues. Studies have also shown employees are exposed to far fewer toxins in areas where smoking is banned in the workplace. Despite the positive effects on health and air quality, many people are still opposed to smoking bans in China. Critics oppose smoking bans and see these laws as an example of the government interfering in people’s lives. They look at the effects on smokers, not those on non-smokers who are subjected to second-hand smoke. Other critics emphasize the rights of the property owner and draw distinctions between public places, such as government building and privately owned businesses, such as stores and restaurants. Some critics of smoking bans believe that outlawing smoking in the workplace may cause smokers to simply move their smoking elsewhere. Instead of smoking indoors, workers may begin smoking in public parks and exposing a new set of people to their secondhand smoke.
单选题Many people are against the use of chemicals to preserve food because ______.Achemicals are not necessary for preserving foodBa small quantity of bacteria in food is good to peopleCthose chemicals that kill bacteria may not be good to peopleDthere are other better ways to preserve food