---Look! She is skiing so fast!

---It’s hard to _________ her legs were once broken.

A. imagine B. agree C. understand D. decide

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——How many trees have the farmers in that village planted?

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閱讀短文, 回答問題。

World Sleep Day, organized by the World Sleep Day Committee of the World Association of Sleep Medicine since 2008, is held on March 21 every year.

The aim of World Sleep Day is to celebrate the benefits of good and healthy sleep. Events involving discussions, presentations of educational materials and exhibitions take place around the world and online.

Sleep quality plays a key role in people’s health. Researchers say that there are a lot of advantages if we always get enough sleep. We can be smarter, thinner, healthier and more cheerful. Also we’re to have better skin, better memories and longer lives. When you lose even one hour of sleep for any reason, it will influence your performance the next day.

In general, adults are thought to need at least eight hours of sleep a night, but a recent survey found that, on weekdays, only 21% of them really get a full eight hours of sleep, and another 21% get less than six. For teenagers, a healthy amount is about eight to nine hours per night. However, about 80% of high school students don’t get enough sleep because of their schoolwork or some bad habits.

27% of people throughout the world have sleep problems. Now there are over 80 kinds of sleep disorders, and most people know little about their danger. So, for our good life and work, it’s necessary for us to realize the importance of sleep and try to have a good sleep.

根據(jù)短文內(nèi)容回答問題。(不超過10個(gè)詞)

1.When is World Sleep Day ？

2.What is the purpose of World Sleep Day？

3.What will happen if we sleep one hour less than we should？

4.Why don’t most high school students have enough sleep？

5.How many kinds of sleep disorders are there in the world?

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They thought __________ important to look right and left when ________ the road.

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According to a new scientific research, we are rapidly going close to major climate change and the effects on the environment could be quite serious. Geographers predict that climate zones could completely disappear within the next eighty years. Where will crops be grown if this happens? When the climate changes a lot, polar regions will get colder and tropical regions will get even hotter. As a result, where will animals be forced to move on the earth?

Climate changes like these could lead to the spread of diseases. Tropical storms and hurricanes(颶風(fēng)) will not only increase but may also become stronger. If the changes come too quickly, animals and plants may not be able to adapt(適應(yīng)) right away and could disappear from the earth.

According to Science Daily, a new study predicts that, by the year 2100, many of today’s familiar climates will be taken place by climate unknown in today’s world. It is urgent that we reduce the risks of far-reaching results for the whole world. The planet itself has been showing signs of change. In 2004, a huge tsunami created by a major earthquake killed thousands in Sumatra and in 2008, thousands more died in China in another big earthquake. Egypt was hit in 2009 with a major earthquake and Haiti was destroyed seriously and became ruins in 2010 by another big earthquake.

Not long ago, scientists discovered ice melting(融化) in west Antarctica(南極洲). This is very worrying because temperatures in this area have remained rather constant(不斷的) and actually even lower at time. Melting occurs when temperatures increase and since temperatures have remained, the ice should not be melting. However, satellite data(數(shù)據(jù)) shows melting around west Antarctica.

Within just the last few months, new reports from around the world have been coming in and most agree that our climate situation is much worse than previously expected. At this point, it doesn’t matter what is causing it, but rather, what can be done about it. On the other hand, our world is getting more and more unstable(不穩(wěn)定) every year. Natural disasters(災(zāi)難) are becoming more frequent(頻繁的) and serious.

However, other planets are experiencing global warming as well as our own and some scientists believe there may be some connections between these. No one knows anything for sure at this point because there is simply not enough data.

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A. We should observe the great changes of the climate carefully.

B. We must connect with other planets to prevent the climate changes.

C. We should try our best to do something against the climate changes.

D. We need to discover what causes the climate changes first of all.

2.What does the underlined word “tropical” mean?

A. cold and dry B. cool and wet

C. hot and wet D. warm and dry

3.What can be inferred from the passage?

A. Collecting more data will help us to solve the problem.

B. The climate will be much better than we have expected.

C. Earthquakes can be avoided in a few years’ time.

D. The ice in west Antarctica will stop melting in the future.

4.What’s the passage mainly about?

A. It tells us how to protect the environment of the earth.

B. It talks about the bad effects of the climate changes.

C. It shows us how to prevent diseases from spreading.

D. It describes what we should do with the earthquakes.

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