In northern China during spring, big sandstorm often make trouble for people. Sandstorms usually happen in spring. They have happened in more than 10 provinces in northern China this year. People in southern China don't have to worry about this kind of bad weather. Most of the sand comes from the north of China. In northern China, lots of places have few trees and don't get much rain. When there aren't many trees, the ground can't keep enough water. Over the years, the ground dries up and turns to sand. When spring comes and the ice melts, the ground becomes loose. Strong winds take the loose sand into the sky. Besides, in northeast China, there lies some vast deserts.
Sandstorms are bad for people's health. If people breathe in too much sand, they will cough or have serious illnesses. Sandstorms also give farmers lots of problems. Sometimes their sheep get lost in the storms and never come back home. The winds also tear the farmers' houses down.
What can you do to stop sandstorms? Here's a piece of advice. Ask your parents to help you plant some trees this spring. If you see people cutting down too many trees, tell them about the dangers of sandstorms, and ask your government to stop them.
【小题1】When do sandstorms usually happen?
A.In summer.B.In spring.C.In winter.D.In autumn
【小题2】What does the underlined word "loose" mean in China?
肥沃的           B.贫瘠的        C.疏松的        D.大量的
【小题3】The second paragraph tells us ______________.
A.why sandstorms happen in northern China
B.the dangers of sandstorms
C.sandstorms aren't terrible at all
D.how sandstorms happen
【小题4】Which of the following is NOT a way to stop sandstorms?
A.Plant more trees in spring.
B.Stop people to cut down too many trees
C.Don't stay outside when sandstorms happen.
D.Tell people about the dangers of sandstorms.
【小题5】Which is the best title for this passage?___________
A.Sandstorms
B.How we can stop sandstorms
C.Why sandstorms only happen in northern China.
D.Sandstorms can influence most of China.

When you watch TV and play video games you make global(全球的) warming worse! It may seem hard to believe, but when electricity is made, so are greenhouse gases(温室气体). This means that every time you use electricity you help make global warming worse!
Cars are also making global warming worse. They burn fossil fuels(化石燃料) in their engines, and send lots of greenhouse gases into the air.
Global warming may be a big problem, but we can all help stop it. People can try to drive their cars less. Or even get ones that run on sunlight! You can also help. Let’s try one of these top ideas:
(1) Try to use less electricity. Turn off lights, your television, and your computer when you’ve stopped using them. To make electricity, fossil fuels are burned in big factories. But burning fossil fuels also makes greenhouse gases. You should also try to watch less TV.
(2) Plant trees. Not only is it a fun thing to do, but it is also a great way to lower the number of greenhouse gases in the air. Trees take carbon dioxide out of the air when they grow.
(3) Don’t throw away your rubbish, try to recycle it. If rubbish is not recycled, it is put in the ground. There it rots(腐烂) and makes a greenhouse gas called methane(甲烷).So try to recycle cans, bottles, plastic bags and newspapers. It’ll make you feel great! And it’ll help the Earth.
【小题1】If we _____, we may make global warming worse.

A.use less electricityB.drive a car on sunlight
C.plant treesD.throw away rubbish
【小题2】We may use more electricity by______.
A.turning off lightsB.shutting down computers
C.turning up CD playersD.turning off TV
【小题3】______ will make global warming worse.
A.MethaneB.CansC.NewspapersD.Bottles
【小题4】Using less electricity does good to global warming because_______.
A.the less electricity is used, the more greenhouse gases are produced
B.the more electricity is used, the more greenhouse gases are produced
C.more electricity is used, less greenhouse gases are produced
D.less electricity is used, more greenhouse gases are produced
【小题5】Which is the following is NOT TRUE according to the passage?
A.Driving cars on sunlight helps to stop global warming.
B.When cars burn fossil fuels, they produce greenhouse gases.
C.When trees grow, they send carbon dioxide into the air.
D.By planting more trees, we can lower the number of greenhouse gases in the air.

E–book is short for electronic(电子) book. It is usually read on personal computers. Some mobile phones can also be used to read e–books.

Earlier e–books were written for a certain group of readers and were about only a few subjects. With the development of the Internet, knowledge and answers to a lot of questions mainly come from e–books. This is why the e–book business is increasing quickly.

E–books have many advantages. First, they save time. We don’t need to go a bookstore to buy books. Besides, we can find the topic we want to know about on the Internet, and then we can quickly get many e–books on similar topics. Second, e–books save money. Some e–books cost us little money, and there are millions of e–books on the Internet that we can get for free. Third, more trees are saved because e–books don’t need to be printed on paper. Fourth, e–books make reading more convenient. You can carry a whole library of hundreds of books with you in a small computer or any e–book reader(阅读器), without worrying about their weight.

But e–books have certain disadvantages. They need a personal computer or an e–book reader, and the information can be lost if its file format(文件格式) is not supported(支持) or changed in the reader’s computer.

However, e–books provide us with a new way of reading. That is good.

1.Why is the e–book business increasing quickly? Because______________.

A.earlier e–books are about only a few subjects.

B.people don’t like to read any paper books any more.

C.the development of the Internet makes e–books more useful.

D.most e–books have been written for a certain group of readers.

2.How many advantages do e–books have according to this article?

A.Three.            B.Four.             C.Five              D.Six

3.Which of the following is TRUE according to this article?

A.All the e–books on the Internet cost lots of money.

B.E–books can’t be read on mobile phones.

C.You can’t read e–books without a personal computer.

D.E–books can make reading more convenient.

4.What is the disadvantage of the e–books?

A.You’ll lose the information if its file format is not supported.

B.You can read e–books any time.

C.You can buy cheap e–books anywhere.

D.You can carry hundreds of books in an e–book reader.

5.The writer mainly tells us _________.

A.the information can be lost if its file format is changed.

B.you don’t need to buy paper books in a bookstore if you read e–books.

C.the development of e–books can help save the environment.

D.e–books affor(提供) us a new good way of reading.

 

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