Some scientists say that animals in the ocean are increasingly threatened（威胁） by noise pollution caused by human beings. The noise that affects（影响）sea animals comes from a number of human activities. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.
Decibels(分贝) measured in water are different from those measured（测量）on land. A noise of one hundred and twenty decibels on land caused pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect.
Some scientists have planned to set a noise limit of one hundred and twenty decibels in oceans. They have found that noises at that level can frighten and confuse(混淆) whales.
A team of American and Canadian scientists discovered that loud noises can seriously hurt some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales’ ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.
Many researchers whose work depends on ocean sounds disagree to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial（工业的）and scientific research. Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect（怀疑） that noise is a greater danger than they believed. They want to stop noises from harming creatures in the ocean.
1.According to the passage, which of the following is increasingly dangerous to sea animals?
A. The man-made noises. B. The noises made by themselves.
C. The sound of earthquakes. D. The sound of the ice-breaking.
2.Which of the following is discussed in the second paragraph(段落)?
A. Different places with different types of noises.
B. The human ears have feelings to all types of noises.
C. The same noise measured differently on land and in the ocean.
D. The ocean animal’s reaction to noises.
3. As to the influence of noises on whales, which of the following statements is TRUE?
A. They are deaf because of noises.
B. Noises at a certain level may hurt them.
C. They are easily confused by noises.
D. Noises will limit their ability to reproduce.
4. We can know from the passage that many scientists think that the noise limit(限制) of one hundred twenty decibels would __________.
A. stop them from doing their research work
B. benefit them a lot in their research work
C. do good to their health
D. increase the industrial output（产量）
5.According to the passage, what will scientists most probably do in the future?
A. They will try their best to make no noise.
B. They will work hard to cut down natural noises.
C. They will study the effect of different noises.
D. They will protect animals from harmful noises.
八年级英语阅读理解中等难度题
Some scientists say that animals in the ocean are increasingly threatened（威胁） by noise pollution caused by human beings. The noise that affects（影响）sea animals comes from a number of human activities. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.
Decibels(分贝) measured in water are different from those measured（测量）on land. A noise of one hundred and twenty decibels on land caused pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect.
Some scientists have planned to set a noise limit of one hundred and twenty decibels in oceans. They have found that noises at that level can frighten and confuse(混淆) whales.
A team of American and Canadian scientists discovered that loud noises can seriously hurt some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales’ ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.
Many researchers whose work depends on ocean sounds disagree to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial（工业的）and scientific research. Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect（怀疑） that noise is a greater danger than they believed. They want to stop noises from harming creatures in the ocean.
1.According to the passage, which of the following is increasingly dangerous to sea animals?
A. The man-made noises. B. The noises made by themselves.
C. The sound of earthquakes. D. The sound of the ice-breaking.
2.Which of the following is discussed in the second paragraph(段落)?
A. Different places with different types of noises.
B. The human ears have feelings to all types of noises.
C. The same noise measured differently on land and in the ocean.
D. The ocean animal’s reaction to noises.
3. As to the influence of noises on whales, which of the following statements is TRUE?
A. They are deaf because of noises.
B. Noises at a certain level may hurt them.
C. They are easily confused by noises.
D. Noises will limit their ability to reproduce.
4. We can know from the passage that many scientists think that the noise limit(限制) of one hundred twenty decibels would __________.
A. stop them from doing their research work
B. benefit them a lot in their research work
C. do good to their health
D. increase the industrial output（产量）
5.According to the passage, what will scientists most probably do in the future?
A. They will try their best to make no noise.
B. They will work hard to cut down natural noises.
C. They will study the effect of different noises.
D. They will protect animals from harmful noises.
八年级英语阅读理解中等难度题查看答案及解析
Can animals do work for us? Some scientists think that animals may do a lot of jobs. They say that we may see many elephants, monkeys, dogs, bears and other animals do a lot of things. Animals can get something to eat if(如果) they do some work for people.
Some scientists say that many different animals may do lots of jobs if they know they will get something to eat. Of course, dogs can guard a house, and elephants can do some heavy jobs. And we can also teach animals to work in factories. In America apes(猿) can help people make cars. Scientists believe that these big monkeys may drive cars.
1.Many different animals may do many jobs if ___.
A. they can go to the wild. (野外)
B. they learn they can get something to eat
C they have a good place to live in
D. they are happy
2.___ can work for us.
A. Only a few animals B. Lots of animals
C Few animals D. No animals
3.What kind of animals can guard(看护) a house?
A．A dog B．An elephant C．An ape D．A monkey
4.What jobs can elephants do?
A．Doing heavy jobs. B．Guarding a house
C．Making cars D．Driving cars
5.Which of the following is true?
A．In China apes can help people make cars.
B．Scientists believe that monkeys may play the piano
C．All the animal can do work.
D．Apes may drive cars
八年级英语阅读理解中等难度题查看答案及解析
There are many kinds of food in the world. Scientists know a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays, the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
根据短文内容，选择正确答案。
1._______ know a lot about food according to the passage.
A. Farmers B. Cooks C. Scientists
2.Scientists think the most important thing about food is _______.
A. how to cook
B. when to eat
C. what to eat
3.Which of the following statements (陈述) is NOT true?
A. Every day, we should eat some vegetables.
B. All the people in the world have enough food to eat.
C. Many people are eating unhealthy food.
4.______ is not good for our health.
A. Bread B. Milk C. Potato chips
5.We may read this passage in _______.
A. a letter
B. a newspaper
C. a health magazine
八年级英语阅读理解困难题查看答案及解析
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays, the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
根据短文内容，选择正确答案。
1._______ know about food most according to the passage.
A. Farmers B. Cooks
C. Scientists D. Customers
2.Scientists think the most important thing about food is _______.
A. how to cook B. when to eat
C. what to eat D. how often to eat
3.Which of the following statements (陈述) is NOT true?
A. Every day, we should eat some vegetables.
B. All the people in the world have enough food to eat.
C. Many people are eating unhealthy food.
D. Everyone is needed to help solve the two problems.
4._______ is not good for our health.
A. Meat B. Bread
C. Milk D. Potato chips
5.We may read this passage in _______.
A. a letter B. a story
C. a newspaper D. a health magazine
八年级英语阅读理解简单题查看答案及解析
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example， people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits， bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place， people eat once or twice a day. But in another place， people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays， the world faces two problems. People in some places， for example， in Africa， are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
1._______ know about food most according to the passage.
A．Farmers B．Cooks
C．Scientists D．Customers
2.Scientists think the most important thing about food is _______.
A．how to cook B．when to eat
C．what to eat D．how often to eat
3.Which of the following statements (陈述) is NOT true?
A．Every day， we should eat some vegetables.
B．All the people in the world have enough food to eat.
C．Many people are eating unhealthy food.
D．Everyone is needed to help solve the two problems.
4._______ is not good for our health.
A．Meat B．Bread
C．Milk D．Potato chips
5.We may read this passage in _______.
A．a letter B．a story
C．a newspaper D．a health magazine
八年级英语阅读理解中等难度题查看答案及解析
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn't eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays(现在), the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It's bad for people's health. So it's our duty to make everyone full and make everyone healthy.
1. know about food most according to the passage.
A. Farmers B. Cooks C. Scientists D. Doctors
2. Scientists think the most important thing about food is .
A. how to cook B. when to eat
C. what to eat D. how often to eat
3. Which of the following statements(陈述) is NOT true?
A. Every day, we should eat some vegetables.
B. All the people in the world have enough food to eat.
C. Many people are eating unhealthy food.
D. Everyone is needed to help solve (解决) the two problems.
4. is not good for our health.
A. Water B. Bread C. Milk D. Junk food
八年级英语阅读理解中等难度题查看答案及解析
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays, the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
根据短文内容，选择正确答案。
1. _______ know about food most according to the passage.
A. Farmers B. Cooks
C. Scientists D. Customers
2.Scientists think the most important thing about food is _______.
A. how to cook B. when to eat
C. what to eat D. how often to eat
3.Which of the following statements (陈述) is NOT true?
A. Every day, we should eat some vegetables.
B. All the people in the world have enough food to eat.
C. Many people are eating unhealthy food.
D. Everyone is needed to help solve the two problems.
4. _______ is not good for our health.
A. Meat B. Bread C. Milk D. Potato chips
5.We may read this passage in _______.
A. a letter B. a story
C. a newspaper D. a health magazine
八年级英语阅读理解中等难度题查看答案及解析
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays, the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
根据短文内容，选择正确答案。
1._______ know about food most according to the passage.
A. Farmers B. Cooks
C. Scientists D. Customers
2.Scientists think the most important thing about food is _______.
A. how to cook B. when to eat
C. what to eat D. how often to eat
3.Which of the following statements (陈述) is NOT true?
A. Every day, we should eat some vegetables.
B. All the people in the world have enough food to eat.
C. Many people are eating unhealthy food.
D. Everyone is needed to help solve the two problems.
4._______ is not good for our health.
A. Meat B. Bread C. Milk D. Potato chips
5.We may read this passage in _______.
A. a letter B. a story
C. a newspaper D. a health magazine
八年级英语阅读理解中等难度题查看答案及解析
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays, the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
根据短文内容，选择正确答案。
1._______ know about food most according to the passage.
A. Farmers B. Cooks
C. Scientists D. Customers
2. Scientists think the most important thing about food is _______.
A. how to cook B. when to eat
C. what to eat D. how often to eat
3. Which of the following statements (陈述) is NOT true?
A. Every day, we should eat some vegetables.
B. All the people in the world have enough food to eat.
C. Many people are eating unhealthy food.
D. Everyone is needed to help solve the two problems.
4._______ is not good for our health.
A. Meat B. Bread
C. Milk D. Potato chips
5. We may read this passage in _______.
A. a letter B. a story
C. a newspaper D. a health magazine
八年级英语阅读理解中等难度题查看答案及解析
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example， people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits， bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place， people eat once or twice a day. But in another place， people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays(现在)， the world faces two problems. People in some places， for example， in Africa，are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
1.______ know about food most according to the passage（根据短文）.
A．Farmers B．Cooks
C．Scientists D．Doctors
2.Scientists think the most important thing about food is ______.
A．how to cook B．when to eat
C．What to eat D．how often to eat
3.Which of the following statements(陈述) is NOT true?
A．Every day， we should eat some vegetables.
B．All the people in the world have enough food to eat.
C．Many people are eating unhealthy food.
D．Everyone is needed to help solve（解决）the two problems.
4.______ is not good for our health.
A．Water B．Bread
C．Milk D．Junk food
八年级英语阅读理解困难题查看答案及解析