共用题干What's Killing the Bats?First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals. What is the main idea of this passage?A: All species of bats in North America are dying.B: Scientists already know the cause of the deaths of bats.C: The bat deaths are a serious problem.D: There are many possible causes of the deaths of bats.
共用题干
What's Killing the Bats?
First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.
Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.
One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.
Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.
Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.
Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.
While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.
How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals.
What's Killing the Bats?
First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.
Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.
One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.
Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.
Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.
Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.
While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.
How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals.
What is the main idea of this passage?
A: All species of bats in North America are dying.
B: Scientists already know the cause of the deaths of bats.
C: The bat deaths are a serious problem.
D: There are many possible causes of the deaths of bats.
A: All species of bats in North America are dying.
B: Scientists already know the cause of the deaths of bats.
C: The bat deaths are a serious problem.
D: There are many possible causes of the deaths of bats.
参考解析
解析：文章的题目是“What's Killing the Bats?”第一段引入了蝙蝠离奇的死亡，第二、三段则写了编蝠死亡的几个可能的原因，第五段写了编蝠死亡带来的结果，最后一段告诉人们怎样帮助编蝠。故选D。
由第一段第一句“First it was bees. Now it is bats.”可知最初是蜜蜂；现在是蝙蝠；后边说了编蝠离奇死亡，说明蜜蜂也曾离奇死亡。故选A。
由第一段第四句“Most of the bats affected are…the Indiana bat have also been affect-ed.”知道大多数遭受感染的编蝠是常见的小棕蝠，但是也有其他种类的编蝠，比如长耳编蝠、小脚编蝠、东方的pipistrelle以及印第安纳编蝠。由此可知，pipistrelle指的也是一种编蝠。故选D。
由第三段“Another possible cause is a lack of food. For example, bats typically eat a large number of moths,”可知，moths指的是一种编蝠捕食的昆虫。故选B。
由最后一段首句“How can you help?”及随后的对该问题的回答。故选D。
由第一段第一句“First it was bees. Now it is bats.”可知最初是蜜蜂；现在是蝙蝠；后边说了编蝠离奇死亡，说明蜜蜂也曾离奇死亡。故选A。
由第一段第四句“Most of the bats affected are…the Indiana bat have also been affect-ed.”知道大多数遭受感染的编蝠是常见的小棕蝠，但是也有其他种类的编蝠，比如长耳编蝠、小脚编蝠、东方的pipistrelle以及印第安纳编蝠。由此可知，pipistrelle指的也是一种编蝠。故选D。
由第三段“Another possible cause is a lack of food. For example, bats typically eat a large number of moths,”可知，moths指的是一种编蝠捕食的昆虫。故选B。
由最后一段首句“How can you help?”及随后的对该问题的回答。故选D。
相关考题：
The main idea of this passage is ______.A. many animals die during hibernationB. hibernation protects animals during the wintertimeC. scientists feel puzzled about hibernationD. some bats hibernate and others do not
—Haven’t seen you for ages!What are you busy doing now? —A、I hate the weather hereB、My hair is getting a bit longerC、Yeah, thanks for comingD、I am working part time in a bookshop, you know.
It can be hard to feel much sympathy for bats. Like snakes or spiders or sharks, there’s something quite alarming about bats, something that holds back empathy. Bats aren’t actually,“flying rodents(啮齿动物),” but you likely won’t see them on the next endangered species poster.But bats in the U.S. are in serious trouble, thanks largely to a catastrophic disease called white-nose syndrome (WNS), which has killed at least one million bats, mostly in the northeast, and death rates among some affected winter colonies can be as high as 70%. One species—the little brown bat or Myotis lucifugus—has declined so quickly that it is headed for extinction. And the disease keeps spreading, with wildlife experts helpless to stop it—after starting in upstate New York in 2006, the disease was just confirmed as far west as Ohio yesterday.You might say: so what? Other than people who study bats—would anyone miss them when they’re gone? As it turns out, all of us would—at least if you like food. A new article in Science shows that bats have an important role to play in agriculture—one worth at least $3.7 billion a year, if not far more. That’s how much the extinction of bats throughout North America could cost the region’s food system, according to an analysis by a group of researchers led by Justin Boyles of the University of Pretoria in South Africa. The logic is simple: bats eat bugs—tons and tons of bugs—and that includes crop and forests pests. (A single colony of 150 brown bats in Indianan has been estimated to eat nearly 1.3 million pest insects a year.) Remove the bats, and you remove one of nature’s most effective biological pesticides—which would have to be replaced by actual pesticides, at an economic and environmental expense.It’s not just WNS that is striking down bats. Wind turbines(涡轮机)are apparently killing migratory(迁徙的)bats as well—by 2020, an estimated 33,000 to 111,000 bats are predicted to be killed by turbines in the mid-Atlantic Highlands alone. The authors in the Science paper worry that as wind power develop fast in the U.S., more bats will end up killed by the blades. But WNS seems like the more immediate threat. But it’s still a mystery how WNS spread, and how to stop it—those the U.S. Fish and Wildlife Service, among other government agencies, is on the case. We may not like bats—but we definitely need them.43. What is the author’s opinion about bats?A. IndifferenceB. FrightenedC. WorriedD. Grateful44. Which of the following statements is true about WNS?A. It speads quicklyB. It can be controlled.C. It was first discovered in Ohio.D. It is more serious in the Northwest.45. From Justin Boyles’ study we can learn that _____.A. bats often eat insects killed pesticidesB. bats in North America are short of foodC. some species of bats harm crop plantsD. losing bats means huge economic cost46. What is the author’s purpose of writing this passage?A. To show his opinion of bats.B. To show how impotant bats are in agriculture.C. To tell us a rare animal.D. To report a new science discovery.
You have developed an application that simplifies hard drive management for Certkiller .com‘s administrators.The application that you created logs all modifications made to physical hard drives on an hourly basis.You now need to create an EventQuery object for this application.What should you do?（）A.B.C.D.
People have smoked cigarettes for a long time now. The tobacco which is used to make cigarettes was first grown in what is now part of the United States. Christopher Columbus, who discovered America, saw the Indians smoking. Soon the dried leaves were transported to Europe. In the late 1800s, the Turks made cigarettes popular. Cigarette smoke contains at least two harmful substances, tar and nicotine. Tar, which forms as the tobacco bums, damages the lungs and therefore affects breathing. Nicotine, which is found in the leaves, causes the heart to beat faster and increases the breathing rate. Nicotine in large can kill a person by stopping a person′s breathing muscles. Smokers usually take in small amounts that the body can quickly break down. Nicotine can make new smokers feel dizzy (头晕) or sick to their stomachs. The heart rate for young smokers increases 2 to 3 beats per minute. Nicotine also lowers skin temperature and reduces blood flow in the legs and feet. It plays an important role in increasing smokers′ risk of heart disease and stroke. Smoking cigarettes is dangerous. Cigarette smoking was the cause of lung cancer and several other deadly diseases. Tobacco first appeared in ___________.A.AsiaB.AfricaC.EuropeD.America
Bats are surprisingly long-Jived creatures, some__________a life span of around 20 years.A.havingB.hadC.haveD.to have
共用题干What's Killing the BatsFirst it was bees.Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucifugus,)but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected. In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years. if bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hiberna- lion at the wrong time,they might not find their expected food sources. The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off, but they do agree on the conse- quences. Bats are an important predator of mosquitoes:a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat. While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish& Wildlife Department with the details.However, be careful not to touch the animals. What does the first sentence in Paragraph 1 mean?A: Bees have been dying mysteriously.B: The first article on the website is about bees.C: Bees usually die before bats.D: It was bees that caused the deaths of bats.
共用题干What's Killing the BatsFirst it was bees.Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucifugus,)but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected. In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years. if bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hiberna- lion at the wrong time,they might not find their expected food sources. The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off, but they do agree on the conse- quences. Bats are an important predator of mosquitoes:a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat. While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish& Wildlife Department with the details.However, be careful not to touch the animals. What is the purpose of the last paragraph?A: To get people to stop killing batsB: To hire workers for the Fish&Wildlife Department C: To ask people not to touch dead batsD: To tell the public how to help bats
共用题干What's Killing the BatsFirst it was bees.Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucifugus,)but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected. In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years. if bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hiberna- lion at the wrong time,they might not find their expected food sources. The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off, but they do agree on the conse- quences. Bats are an important predator of mosquitoes:a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat. While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish& Wildlife Department with the details.However, be careful not to touch the animals.A: diseases that kill batsB: insects that bats eatC: animals that have diseasesD: bat species that are starving to death
共用题干What's Killing the BatsFirst it was bees.Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucifugus,)but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected. In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years. if bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hiberna- lion at the wrong time,they might not find their expected food sources. The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off, but they do agree on the conse- quences. Bats are an important predator of mosquitoes:a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat. While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish& Wildlife Department with the details.However, be careful not to touch the animals.The word"pipistrelle"in Paragraph 1 refers to______..A:.a kind of fungusB: an area in the U.S.C: a special caveD: a kind of bat
共用题干What's Killing the BatsFirst it was bees.Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucifugus,)but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected. In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years. if bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hiberna- lion at the wrong time,they might not find their expected food sources. The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off, but they do agree on the conse- quences. Bats are an important predator of mosquitoes:a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat. While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish& Wildlife Department with the details.However, be careful not to touch the animals. What is the main idea of this passage?A: All species of bats in North America are dying.B: Scientists already know the cause of the deaths of bats.C: The bat deaths are a serious problem.D: There are many possible causes of the deaths of bats.
共用题干What's Killing the Bats?First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals. What does the first sentence in Paragraph 1 mean?A: Bees have been dying mysteriously.B: The first article on the website is about bees.C: Bees usually die before bats.D:.It was bees that caused the deaths of bats.
共用题干What's Killing the Bats?First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals. What is the purpose of the last paragraph?A: To get people to stop killing bats.B: To hire workers for the Fish&Wildlife Department.C: To ask people not to touch dead bats.D: To tell the public how to help bats.
共用题干What's Killing the Bats?First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals. The“moths”in Paragraph 3 are taken as an example of______.A: diseases that kill batsB: insects that bats eatC: animals that have diseasesD: bat species that are starving to death
Tens of thousands of sportsmen assembled in Stratford Olympic Stadium in London to take part in the opening ceremony of the 30th Olympic Games.A:appeared B:walkedC:gathered D:combined
共用题干What's Killing the Bats?First it was bees .Now it is bats.Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country.Most of the bats affected are the common little brown bats(Myotis lucfugus),but other species, such as the long-eared bat,the small-footed bat,the eastern pipistrelle,and the Indiana bat have also been affected.In some caves,more than 90 percent of the bat populations have died.One possibility is disease. A white fungus（真菌）known as fusarium has been found on the noses of both living and dead bats.However,scientists don't know if the fungus is the primary cause of death,a secondary cause of death,or not a cause at all,but the result of some other conditions.Another possible cause is a lack of food.For example,bats typically eat a large number of moths（蛾）,and in some states such as New York,the number of moths has been declining in recent years.If bats can't eat enough food,they starve to death.Still other scientists believe that global warming is to blame.Warmer temperatures in recent years have been waking up hibernating（冬眠）bats earlier than usual. If bats break their hibernation at the wrong time,they might not find their expected food sources.The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-off,but they do agree on the consequences.Bats are an important predator of mosquitoes;a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops.If there aren't enough bats,damage will be great from the insects they eat.While bats live a long time for their size-the little brown bat can live for more than 30 years-a female bat has only one baby per year,so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help?Do not disturb sleeping or nesting bats.If you discover bats that seem to be sick or that are dead,contact your local Fish&Wildlife Department with the details.However,be careful not to touch the animals. The word“pipistrelle”in Paragraph 1 refers to______.A: a kind of fungusB: an area in the U.S.C: a special caveD: a kind of bat
共用题干New Foods and the New WorldIn the last 500 years,nothing about people—not their clothes,ideas,or languages—has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree by South American Indians .The Spanish introduced it to the rest of the world during the 1500's .And although it was very expensive,it quickly became fashionable.In London,shops where chocolate drinks were served became important meeting places. Some still exist today.The potato is also from the New World. Around 1600,the Spanish brought it from Peru to Europe,where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the“Potato Famine”of 1845—1846,and thou- sands more were forced to emigrate to America.There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world's largest grower of coffee,and coffee is an important crop in Colombia and other South American countries.But it is native to Ethiopia. It was first made into a drink by Arabs during the 1400's.According to an Arabic legend,coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush.He tried one and experienced the “wide-awake”feeling that one-third of the world's population now starts the day with. The Arabic legend is used to prove thatA:.coffee was first discovered by KaldiB: coffee was first discovered by Kaldi's goatsC:.coffee was first discovered in south American countriesD: coffee drinks were first made by Arabs
American Survey TestThe （）part of America consists of high plateaus and mountains formed by the Great Cordillera Range.A、easternB、westernC、northeastern
问答题Now many university teachers are troubled by students' cheating on exams. No matter how hard they try to persuade students and to prevent it from happening, this phenomenon seems to be on the increase. In the past, only students poor at study would try to cheat, but now those good students are joining this team. What's more, students who are caught seldom regret their behavior; they only complain about their bad luck. This is really hard to understand for teachers and administrators. The website of a university has started an online discussion about .why students cheat on exams, and you are expected to write an article of about 400 words to join this discussion. You can decide the title for your article. In the first part of your writing you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion or a summary. Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.
单选题自动售检票系统简称（），它的定义是指基于计算机、通信、网络、自动控制等技术，实现轨道交通售票、检票、计费、收费、统计、清分、管理等全过程的自动化系统。AAFC系统BATS系统CATO系统DPIS系统
填空题To encourage bats spread seeds is the function of installing man-made bat roosts in deforested areas.____
单选题图定列车清客作业时，车站值班员（行车）核对（）确认列车为图定清客列车。A运行时刻表BATS工作站C调度命令D车站自动记点系统