The Earth has warmed by about half a degree(0.50℃)over the last 100 years. It could be getting warmer on its own, but many scientists think that people are making the Earth warmer by making a greenhouse effect. The greenhouse effect is important. Without it, the Earth would not be warm enough for us to live on. But just a little warmer than it is now could cause problems for humans, plants and animals.
Many of the things we do every day can change the Earth’s temperature by sending greenhouse gases into the air. We send greenhouse gases into the air when we watch TV, turn on lights, dry hair, play video games, wash or dry our clothes or drive cars. The rubbish from factories and homes also produces greenhouse gases.
Even a small change in temperature can affect our weather. This can cause changes in the sea levels, the air, flooding, and our fresh water.
The change in the temperature can also cause changes in the living places for animals and plants, endangering many animals.
Global warming is a big problem, and every little bit we do can help. We can save electricity. We can save energy in other ways such as by taking buses or walking rather than driving cars. We can recycle to reduce the rubbish and save natural resources such as trees, oil and metals. We can buy products that don’t do bad to the environment and we can turn to solar energy. Remember the little bit that you do will bring a better world.
根据短文内容,选择最佳答案。
1.Which of the following does not send greenhouse gases into the air?
A.Watching TV. B.Turning on a light.
C.Driving a car. D.Walking to school.
2.In this passage, the scientists are mainly trying to make the readers realize___________ .
A.the greenhouse effect is important
B.humans are making the earth warmer
C.the earth is getting warmer in 100 years
D.the earth could be getting warmer by itself
3.Without the greenhouse effect,we would _____________ .
A.be safer
B.not be able to live
C.have a cleaner earth
D.have a better world
4.The writer gives us advice on how to save energy in __________ .
A.Paragraph 2 B.Paragraph 3
C.Paragraph 4 D.Paragraph 5
5.Global warming is a big problem but ___________ .
A.we can't do anything to help
B.we don't need to do anything
C.we can do something to help
D.we can do something to stop it
九年级英语阅读理解中等难度题
The Earth has warmed by about half a degree(0.50℃)over the last 100 years. It could be getting warmer on its own, but many scientists think that people are making the Earth warmer by making a greenhouse effect. The greenhouse effect is important. Without it, the Earth would not be warm enough for us to live on. But just a little warmer than it is now could cause problems for humans, plants and animals.
Many of the things we do every day can change the Earth’s temperature by sending greenhouse gases into the air. We send greenhouse gases into the air when we watch TV, turn on lights, dry hair, play video games, wash or dry our clothes or drive cars. The rubbish from factories and homes also produces greenhouse gases.
Even a small change in temperature can affect our weather. This can cause changes in the sea levels, the air, flooding, and our fresh water.
The change in the temperature can also cause changes in the living places for animals and plants, endangering many animals.
Global warming is a big problem, and every little bit we do can help. We can save electricity. We can save energy in other ways such as by taking buses or walking rather than driving cars. We can recycle to reduce the rubbish and save natural resources such as trees, oil and metals. We can buy products that don’t do bad to the environment and we can turn to solar energy. Remember the little bit that you do will bring a better world.
根据短文内容,选择最佳答案。
1.Which of the following does not send greenhouse gases into the air?
A.Watching TV. B.Turning on a light.
C.Driving a car. D.Walking to school.
2.In this passage, the scientists are mainly trying to make the readers realize___________ .
A.the greenhouse effect is important
B.humans are making the earth warmer
C.the earth is getting warmer in 100 years
D.the earth could be getting warmer by itself
3.Without the greenhouse effect,we would _____________ .
A.be safer
B.not be able to live
C.have a cleaner earth
D.have a better world
4.The writer gives us advice on how to save energy in __________ .
A.Paragraph 2 B.Paragraph 3
C.Paragraph 4 D.Paragraph 5
5.Global warming is a big problem but ___________ .
A.we can't do anything to help
B.we don't need to do anything
C.we can do something to help
D.we can do something to stop it
九年级英语阅读理解中等难度题查看答案及解析
The Earth has warmed by about half a degree(0.50℃)over the last 100 years. It could be getting warmer on its own, but many scientists think that people are making the Earth warmer by making a greenhouse effect. The greenhouse effect is important. Without it, the Earth would not be warm enough for us to live on. But just a little warmer than it is now could cause problems for humans, plants and animals.
Many of the things we do every day can change the Earth’s temperature by sending greenhouse gases into the air. We send greenhouse gases into the air when we watch TV, turn on lights, dry hair, play video games, wash or dry our clothes or drive cars. The rubbish from factories and homes also produces greenhouse gases.
Even a small change in temperature can affect our weather. This can cause changes in the sea levels, the air, flooding, and our fresh water.
The change in the temperature can also cause changes in the living places for animals and plants, endangering many animals.
Global warming is a big problem, and every little bit we do can help. We can save electricity. We can save energy in other ways such as by taking buses or walking rather than driving cars. We can recycle to reduce the rubbish and save natural resources such as trees, oil and metals. We can buy products that don’t do bad to the environment and we can turn to solar energy. Remember the little bit that you do will bring a better world.
1. Which of the following does not send greenhouse gases into the air?
A. Watching TV. B. Turning on a light.
C. Driving a car. D. Walking to school.
2. In this passage, the scientists are mainly trying to make the readers realize___________ .
A. the greenhouse effect is important
B. humans are making the earth warmer
C. the earth is getting warmer in 100 years
D. the earth could be getting warmer by itself
3. Without the greenhouse effect,we would _____________ .
A. be safer B. not be able to live
C. have a cleaner earth D. have a better world
4. The writer gives us advice on how to save energy in __________ .
A. Paragraph 2 B. Paragraph 3
C. Paragraph 4 D. Paragraph 5
5. Global warming is a big problem but ___________ .
A. we can't do anything to help B. we don't need to do anything
C. we can do something to help D. we can do something to stop it
九年级英语阅读理解中等难度题查看答案及解析
April 22 is Earth Day. Everyone on Earth should care about and protect the earth!
The earth has warmed by about 1°F (华氏度) over the past 100 years, but why and how?
Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. But many scientists say that people are doing many things which makes the earth warmer.
First, greenhouse effect (温室效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. Climate (气候) change is another important reason. Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.
When the earth becomes warmer, there may be more rain and a rise in sea level. It will affect the growth of plants, animals and people. On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.
People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. For example, we can use fridges less. We can tell more people about protecting the earth.
1.Earth Day is probably set for people to ______.
A.learn more about the earth B.make full use of the earth
C.take better care of the earth. D.study the warmth of the earth
2.We can infer (推断) from the passage that the reasons for the warmer earth are
______ now.
A.not very clear B.completely secret C.well known D.not given yet
3.Greenhouse effect comes from______.
A.sea rising B.climate change C.nature's unbalance D.people's activity
4.The passage mainly tells us that ______.
A.there is more rain now B.we should protect the earth
C.we must stop pollution D.sea level is getting higher
九年级英语阅读理解中等难度题查看答案及解析
The new book Harry Potter and the Half-Blood Prince is warmly welcomed by the children in China. It sells well across China. You can see and hear the advertisements about the book here and there.
Why is the book so attractive to children? After reading it, I was attracted by the magic world. I can not help asking: where is our own Harry Potter?
China has a long history and colorful culture. With a large market of teenagers, China published (出版) many popular books among children.
However, why are the present books not as good as those foreign ones?
Firstly, quite a number of children's books are focused on teaching, and they have little interest value. Reading them, children often have a feeling of being "educated". Certainly, they don't like them. Secondly, fewer children like the same stories, but most Chinese books are usually much the same. One knows the ending as early as in the beginning. Finally, the writers seldom think about children's needs. First-class Reading for children should be interesting, and written in their language.
1.About the present Chinese children's books, which is NOT right?
A. They have little interest value.
B. Our writers seldom know children’s needs.
C. Most of them are the same.
D. They are better than foreign ones.
2.Harry Potter is so popular because _____.
A. it's the same as Chinese books
B. it can lead children into a wonderful world
C. it's not written in children's language
D. it's advertised more often on TV or posters
3.The underlined phrase "First-class" means _____.
A. very simple B. low level
C. really good D. extra difficult
4."Where is our own Harry Potter?" refers to _____.
A. the writer can't find any books for children
B. Chinese parents should buy Harry Potter for their children
C. our children should learn from Harry Potter
D. Chinese writers should write better books for children
5.The passage mainly tells us _____.
A. ways to read books
B. our children need another magic boy
C. ways to choose books
D. our children need more better books
九年级英语阅读理解中等难度题查看答案及解析
Scientists who study the climate are still arguing about how fast the earth is warming and how much it will warm, but they do agree that the earth is warming and that it will keep warming if we don’t do anything about it.
Scientists agree that the burning of fossil fuels (化石燃料) like oil and coal cause greenhouse gases to escape into the air and that these gases are causing most of the warming. Another cause is deforestation (cutting down trees) . Trees soak up carbon dioxide, one of the greenhouse gases, from the air.
There are already some changes happening because of global warming. Sea level is rising and some animals are already moving to new homes. It’s already too late to stop global warming completely.
If the warming gets worse, as scientists expect, there may be some kinds of plants and animals that is disappearing because they can’t move to new homes. There may be more storms and floods. Sea level may rise so much that people have to move away from the coasts. Some areas may become too dry for farming.
Global warming is a very difficult problem to fix. People are having a hard time agreeing on what to do about it. For example, everyone agrees that wasting energy is a bad thing to do. But some people think that the federal government (联邦政府) should make laws about it, while other people think it should be up to each person or business to decide what to do.
Many states and businesses in the United States are not waiting until the federal government decides what to do. They have already started working on the problem.
1.What are the scientists arguing about in the passage?
A. How fast is the earth warming? B. How much will the earth warm?
C. The earth will keep warming if we don’t do anything about it. D. Both A and B.
2.What does the underlined phrase “soak up” mean?
A.take in B.grow up C.take off D.set up
3.What may be the causes of global warming?
A.The disappearance of plants and animals and the wasting energy.
B.The burning of fossil fuels and storms and floods.
C.The burning of fossil fuels and deforestation.
D.The rising of sea level and deforestation.
4.What is the best title of this passage?
A.The reason for global warming B.How to stop global warming
C.The changes to the world D.The global warming
九年级英语阅读理解困难题查看答案及解析
Scientists who study the climate are still arguing about how fast the earth is warming and how much it will warm, but they do agree that the earth is warming and that it will keep warming if we don’t do anything about it.
Scientists agree that the burning of fossil fuels (化石燃料) like oil and coal cause greenhouse gases to escape into the air and that these gases are causing most of the warming. Another cause is deforestation (cutting down trees) . Trees soak up carbon dioxide, one of the greenhouse gases, from the air.
There are already some changes happening because of global warming. Sea level is rising and some animals are already moving to new homes. It’s already too late to stop global warming completely.
If the warming gets worse, as scientists expect, there may be some kinds of plants and animals that is disappearing because they can’t move to new homes. There may be more storms and floods. Sea level may rise so much that people have to move away from the coasts. Some areas may become too dry for farming.
Global warming is a very difficult problem to fix. People are having a hard time agreeing on what to do about it. For example, everyone agrees that wasting energy is a bad thing to do. But some people think that the federal government (联邦政府) should make laws about it, while other people think it should be up to each person or business to decide what to do.
Many states and businesses in the United States are not waiting until the federal government decides what to do. They have already started working on the problem.
1.What are the scientists arguing about in the passage?
A. How fast is the earth warming?
B. How much will the earth warm?
C. The earth will keep warming if we don’t do anything about it.
D. Both A and B.
2.What does the underlined phrase “soak up” mean?
A. take in B. grow up C. take off D. set up
3.What may be the causes of global warming?
A. The disappearance of plants and animals and the wasting energy.
B. The burning of fossil fuels and storms and floods.
C. The burning of fossil fuels and deforestation.
D. The rising of sea level and deforestation.
4.What is the best title of this passage?
A. The reason for global warming B. How to stop global warming
C. The changes to the world D. The global warming
九年级英语阅读理解中等难度题查看答案及解析
The new book Harry Potter and the Half-Blood is warmly welcomed by the children in China. It sells well across China. You can see and hear the advertisements about the book here and there.
Why is the book so attractive (吸引人的) to children? After reading it, I was attracted by the magic world. I can not help asking: where is our own Harry Potter?
China has a long history and colorful culture. With a large market of teenagers, China published (出版) many popular books among children. However, why are the present books not as good as those foreign ones?
Firstly, quiet a number of children’s are of strong sense of teaching, and they have little interest. Reading them, children often have a feeling of being “educated”. Certainly, they don’t like them. Secondly, fewer children like the same stories, but most Chinese books are usually much the same. One knows the ending as early as in the beginning. Finally, the writers seldom think about children’s needs.
First-class Reading for children should be interesting, and written in their language.
1.About the present Chinese children’s books, which is NOT right?
A. They have little interest. B. Our writers seldom know children’s needs.
C. Most of them are the same. D. They are better than foreign ones.
2.Harry Potter is so popular, because __________.
A. it’s the same as Chinese books B. it can lead children into a wonderful world
C. it’s not written in children’s language D. it’s advertised more often on TV or posters
3.The Chinese meaning of the underlined phrase “First-class Reading” is _______.
A. 第一批读物 B. 一节课的阅读 C. 一流的读物 D. 基础的阅读
4.“Where is our own Harry Potter?” means __________.
A. the writer can’t find any books for children
B. Chinese presents should buy Harry Potter for their children
C. our children should learn from Harry Potter
D. Chinese writers should write better books for children
5. Which is the best title (标题) of the passage?
A. Ways to read books. B. A magic boy, Harry Potter.
C. Books and advertisements. D. Our children need better books.
九年级英语阅读理解困难题查看答案及解析
Scientists have long believed one way to stop the Earth’s air from warming is by planting more trees. The idea is that more trees will take in or absorb(吸收) some of the CO2 in the air. CO2 is a gas released by cars, factories and other human activities. The gas traps heat in the Earth’s air, which warms the planet. However, two new studies have found that trees may not be as helpful in reducing CO2 as thought.
The first study was done at Duke University in Durham, North Carolina. Researchers pumped(打气) extra CO2 into a test area where green trees were growing. The trees grew thirty-four percent faster during the first three years. However, in time, the trees slowed to about their normal growth rate. The scientists say this is because trees need other nutrients(营养素), such as nitrogen(氮).
In the second study, researchers from Duke and Bowdoin College in Brunswick, Maine examined the soil(泥土) around trees. They discovered that as the leaves broke down into the soil, all the carbon was not trapped in the soil. Much of it was let into the air as CO2.
The findings of the two studies were published last month in Nature magazine. They suggest there is limited(有限的) value in planting trees to reduce the CO2 pollution in the air.
Forest planting has been a part of negotiations(谈判) on a world agreement to reduce greenhouse gases that scientists believe cause global warming. The United States, Canada, Japan and some other countries have supported the idea. But this new research suggests the idea is not as effective as environmental activists(积极分子) had thought. Scientist Ram Oren of Duke University led the study on tree growth. He says that earlier estimates(估计) on the ability of forests to absorb CO2 were overly hopeful.
Some other scientists say the research provides some of the first evidence on how trees react(反应) to CO2. Some other scientists say the research disputes(质疑) a belief among some coal and power companies. The companies say that more CO2 in the air will not create harmful global warming. Instead, they say it will increase forests and other plants.
1.Why did the researchers put trees in extra CO2 in the first study?
A. To learn whether trees can still absorb CO2 under extreme conditions.
B. To get more oxygen from these trees.
C. To know how much CO2 that trees can absorb.
D. To see the effect of CO2 on the growth rate of these trees.
2.What happened to the leaves falling from the trees in the second study?
A. They broke down and the main parts turned into oxygen.
B. They broke down and the carbon had mainly turned into CO2.
C. They broke down and the carbon was mainly absorbed in the soil.
D. They absorbed more CO2.
3.Scientist Ram Oren thinks that common beliefs of the tree’s ability to absorb CO2 are __________.
A. just right B. not acceptable
C. a bit too cheerful D. too dangerous
九年级英语阅读理解中等难度题查看答案及解析
It is said that the population of the earth _____ over 70 billion.
A. is B.are C. has
九年级英语单项填空简单题查看答案及解析
The film _________________ for half an hour when she got to the cinema.
A. has been over B. has finished C. had been over D. had finished
九年级英语单项填空中等难度题查看答案及解析