题目内容

If we use fewer chemicals called CFCs, the ozone layer will be ________．

A.
damaged
B.
protected
C.
destroyed
D.
threatened

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Thousands of years ago, people didn’t know that the Earth moved. They thought the sun really did move across the sky. The Greek god Helios was said to drive the sun around the sky with his chariot（战车）. But now, these ideas have all changed. Nowadays, it is the sun that drives our “chariot” around the sky.
So what does all this mean? Well, quite simply, there is now a plane （or “chariot”） that is powered by the sun. It has special parts in its wings. These parts absorb power from the sun. They absorb so much power that they can carry on flying at night. In the Greek myths（希腊神话）, Helios had to take a break at night. It seems we’re finally even more efficient than the gods themselves.
This plane is called Solar Impulse （“太阳驱动”号）. It will fly across the US in May. This is very important for the future of the world.
So why is solar energy so good for us? Well, other kinds of energy cause a few problems. If you live in China, you’ve probably noticed the pollution. This is caused by burning coal or gas to make energy. The heat and chemicals（化学制品）from this make things work. But if we use the heat from the sun, we don’t have to burn anything, and there’s no pollution.
Solar energy is not all there yet. It needs to be improved. But the best thing about it is that, unlike coal and gas, it doesn’t run out. Solar Impulse could keep flying forever. Well, actually, the sun will run out too, one day, but not for another 5 billion years. That’s a pretty long flight.
【小题1】What does “chariot” really refer to in the last sentence of Paragraph 1?

【小题2】Which of the following is TRUE of Solar Impulse?

A．It can only fly at night.	B．It has already flown across the US.
C．It is powered by the sun.	D．It needs gas to work.

【小题3】In the passage, what is mentioned as the cause of pollution in China?

A．Overpopulation.	B．Burning coal or gas.
C．Using solar energy.	D．Heavy traffic.

【小题4】What does the writer mean by “That’s a pretty long flight”?

A．It takes a lot of time to get Solar Impulse going.

B．Solar Impulse moves very slowly.

C．Solar Impulse will be in use for a long time.

D．Solar Impulse has a long way to go to take the place of the sun.

【小题5】The passage is most probably taken from___________.

Want a good night's sleep? Then turn off your computer, cell phone or PSP two hours before you go to bed.
These things have bright lights. When our eyes see bright lights just before sleep, our sleep patterns (模式) change, a study has found.
Our body clock starts shutting us down for bed at 9 or 10 pm. But bright lights make our minds think that it is still daytime. That wakes us up and leaves us sleepless, experts say.
But if you read a paper book before sleeping, you won't have this problem. This is because light from a bedside lamp (台灯) does not go straight into our eyes.
Also, if you are watching a television from across the bedroom, you won't have problems falling asleep. The TV sends light to us from a distance, so the light won't be as strong.
【小题1】The writer tells us to turn off the computer before bed time.

【小题2】Which of the following may make us sleepless?

A．Reading a newspaper.	B．Talking on QQ.
C．Reading a book.	D．Watching TV.

【小题3】Why can't we sleep well if we use a computer before bed time?

A．We think it is daytime if we leave computers on.

B．We feel too excited to sleep after using computers.

C．Lights from computers are brighter than other lights.

D．Lights from computers can change our sleep patterns.

So what does all this mean? Well, quite simply, there is now a plane （or “chariot”） that is powered by the sun. It has special parts in its wings. These parts absorb power from the sun. They absorb so much power that they can carry on flying at night. In the Greek myths（希腊神话）, Helios had to take a break at night. It seems we’re finally even more efficient than the gods themselves.

This plane is called Solar Impulse （“太阳驱动”号）. It will fly across the US in May. This is very important for the future of the world.

So why is solar energy so good for us? Well, other kinds of energy cause a few problems. If you live in China, you’ve probably noticed the pollution. This is caused by burning coal or gas to make energy. The heat and chemicals（化学制品）from this make things work. But if we use the heat from the sun, we don’t have to burn anything, and there’s no pollution.

Solar energy is not all there yet. It needs to be improved. But the best thing about it is that, unlike coal and gas, it doesn’t run out. Solar Impulse could keep flying forever. Well, actually, the sun will run out too, one day, but not for another 5 billion years. That’s a pretty long flight.

1.What does “chariot” really refer to in the last sentence of Paragraph 1?

A．The Earth. B．The Greek god. C．Solar Impulse. D．Birds.

2.Which of the following is TRUE of Solar Impulse?

A．It can only fly at night. B．It has already flown across the US.

C．It is powered by the sun. D．It needs gas to work.

3.In the passage, what is mentioned as the cause of pollution in China?

A．Overpopulation. B．Burning coal or gas.

C．Using solar energy. D．Heavy traffic.

4.What does the writer mean by “That’s a pretty long flight”?

A．It takes a lot of time to get Solar Impulse going.

B．Solar Impulse moves very slowly.

C．Solar Impulse will be in use for a long time.

D．Solar Impulse has a long way to go to take the place of the sun.

5.The passage is most probably taken from___________.

A．a Greek myth B．a science fiction C．a story-book D．a science magazine

Want a good night's sleep? Then turn off your computer, cell phone or PSP two hours before you go to bed.

These things have bright lights. When our eyes see bright lights just before sleep, our sleep patterns (模式) change, a study has found.

Our body clock starts shutting us down for bed at 9 or 10 pm. But bright lights make our minds think that it is still daytime. That wakes us up and leaves us sleepless, experts say.

But if you read a paper book before sleeping, you won't have this problem. This is because light from a bedside lamp (台灯) does not go straight into our eyes.

Also, if you are watching a television from across the bedroom, you won't have problems falling asleep. The TV sends light to us from a distance, so the light won't be as strong.

1.The writer tells us to turn off the computer before bed time.

A. half an hour B. an hour C. two hours D. three hours

2.Which of the following may make us sleepless?

A. Reading a newspaper. B. Talking on QQ.

C. Reading a book. D. Watching TV.

3.Why can't we sleep well if we use a computer before bed time?

A. We think it is daytime if we leave computers on.

B. We feel too excited to sleep after using computers.

C. Lights from computers are brighter than other lights.

D. Lights from computers can change our sleep patterns.

任务型阅读。阅读下列短文，根据短文内容回答问题。

Pollution problems are becoming more and more serious. One of them is called "white pollution"
caused by plastic, such as shopping bags, boxes and cups. In China about three billion plastic shopping
bags are used every day, which results in a great waste of resources(资源) and heavy environmental
pollution. Luckily, the government has stopped us from using free plastic bags, telling all stores and
supermarkets not to provide customers(顾客) with free plastic bags since June 1, 2008. From then
on, people have been supposed to use cloth bags and shopping baskets instead of plastic bags in order
to protect our environment.
Now more and more people have realized the importance of using the cloth bags and the shopping
baskets. For one thing it can protect our environment, for another it can also make our country cleaner
and more beautiful. Yet we have more things to do to solve the problem of "white pollution"!

1. Is "white pollution" caused by plastic?
    __________________________________________________
2. How many plastic shopping bags are used every day in China?
    __________________________________________________
3. How long have all stores and supermarkets been told not to provide customers with free plastic bags?
    __________________________________________________
4. What will happen if we use cloth bags and shopping baskets?
    __________________________________________________
5. What other things can we do to solve the problem of "white pollution"?
    __________________________________________________

If we use fewer chemicals called CFCs, the ozone layer will be ________．

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