任務型閱讀
Pollution problems are becoming more and more serious. One of them is called “white pollutions” 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(資源) and heavy environment pollution. Luckily, the government has stopped us from using free plastic bags, telling all stores and supermarket not to provide customers(顧客) 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 shopping baskets. For one thing it can protect our environment, for another it can also save energy. Yet we have more things to do to solve the problem of “white pollution”!
【小題1】Is “white pollution” caused by plastic?
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【小題2】How many plastic shopping bags are used every day in China?
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【小題3】What are the advantages of using cloth bags or shopping baskets？
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Do you know why different animals or pests have their special colors? Colors in them seem to be used mainly to protect themselves.
Some birds like eating locusts. but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you'll find the main use of coloring is protecting themselves. Bears, lions and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colors much like the tree.
Have you ever noticed an even more strange act? A kind of fish in the sea can send out a kind of very black liquid when it faces danger. While the liquid spread over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn't strong at all.
根據(jù)短文內(nèi)容, 指出能完成所給句子或回答所提問題的最佳答案。
【小題1】From the passage we learn that locusts ___ .

At one time or another we have all stopped to think about the weather. Some days the weather is good. Some days the weather is bad. Sometimes a day that seems bad turns out better than you thought it would. There are ways of understanding the weather. One way is to study the clouds. No two clouds are ever alike. We can see the different kinds of clouds and watch them for signs of changing weather. To forecast the weather, there are three things about clouds. you should look for: movement, colour, and change. As a rule, the higher the clouds, the better the weather. And the lower the clouds, the worse the weather is likely to be. Fair-weather cumulus clouds* are another sign of good weather. These are clouds we often see on warm summer days. Clouds can tell you if a storm is on the way. If the thick, fluffy cumulus clouds get bigger early in the day, then you know it will rain. If there is a sudden, cool and dark thunder* cloud appears, then a storm is about to break out. Colours in the sky tell us about the weather, too. A golden ring around the moon warns us that a storm is on the way. A watery yellow sunset is a sign that rain may be near. The rainbow* has a message, too. The colours of the rainbow come from the sun rays shining through falling rain. If you see the sun in the east and a rainbow in the west, the rain may be coming your way. If the sun is in the west and the rainbow is in the east, the rain will be moving away from you.
【小題1】 According to this article, one way to understand the weather is to    .

Have you ever hoped a toy balloon? They are very light. But there are much bigger balloons can fly very high up in the sky. They are big enough to carry people. They are called hot-air balloons.
To make a hot-air balloon go up, turn on the burner(燃燒器). That will make the air inside the balloon hotter. Then the balloon will go up.
To make the balloon go down, turn off the burner. The air inside the balloon will get cooler. Then the balloon will go down. Underneath(在….下面) the balloon there is a large basket. That is where the pilot and the passengers go.
The burner is just above the basket. You can stand in the basket and turn the burner on and off. The balloon will go where the wind is blowing the right way! Do you want the balloon to go somewhere special? First make sure the wind is blowing the right way!
People have been flying in hot-air balloons for over two hundred years. Before planes it was the only way of flying. Today people fly in hot-air balloon for fun. Some people like to race hot-air balloons.
【小題1】A hot-air balloon is ____

BEIJING—No Car Day was first started by 34 cities in France on September 22,1998.It was started to protect the environment.By now, more than 1,000 cities around the world have had a No Car Day.
The first No Car Day in China was in Chengdu in 2001.Other cities, including Taipei, Shanghai and Wuhan, also support(支持) the day.
In Beijing, more and more people are joining in the activity.It asks drivers to leave their cars at home for one day each month and walk or ride a bike to work.It also calls on Beijingers not to use cars on June 5(World Environment Day).The slogan(口號) for the day is, “If we drive for one less day, we can have one more nice day.”
So far, more than 200,000 drivers have shown their support.“We can’t control the weather, but we can chose not to drive,” said Wu Zonghua, a car club chairman.Beijing is trying to have 238 blue sky days this year.In the first quarter of this year, Beijing only had 52 blue sky days.This was 11 days less than the number for the same period last year.Much of the dust(灰塵) comes from the desert(沙漠), but cars cause most of the air pollution(污染).We must do more for no Car Day.
【小題1】There are       cities in China that support No Car Day according to the passage.

What will the future be like? What do you think of it? Here are some answers from some students.
Roy Burns: I think life in the future will be better.Most people in the world will use “green cars” by 2020, so there will be less pollution and people will live to be 200 years old.As for space travel, I would say, we will travel to Mars(火星) and some other stars in about fifty years.
Helen Lester: If we don’t take good care of the earth now, our children and grandchildren will be born into a world with too much pollution.There will be fewer trees and more buildings, because there will be more people.
Kitty Smith: I agree with Helen Lester.Things will be worse.The weather in the future will be much hotter.Human beings will have to look for another planet to live on.
【小題1】What are the students doing?

Maybe you know floods, droughts, earthquakes, sandstorms and so on. But have you ever heard of typhoons?
Typhoons are some of the worst storms, usually around the Pacific Ocean and the South China Sea. Most happen in July, August and September.
How does a typhoon happen? When lots of sea water gets hot in the summer sun, it evaporates into the air. This makes the air hotter. When the air gets warm enough, it starts to move higher up into the sky. Then, cooler air around it rushes in. It fills the space that is left. After the air gets warmer, it starts to move quickly, making wind. The wind goes in circles, and it keeps moving higher in the sky. The warmer the air gets, the quicker the wind moves. And when the wind moves faster than 30 meters a second, a typhoon begins.
A typhoon has two parts. One is called the "eye". In the eye, the wind does not move so fast. The other part is the wall of clouds around the eye. This is where the strongest wind and hardest rains are.
Typhoons are very dangerous. In 2004, Typhoon Yunna killed 164 people in Zhejiang, and 24 people were missing. In May 2006, Typhoon Pearl hit Guangdong and Fujian, and thousands of houses were damaged.
What to do when a typhoon hits:
·Stay inside, close all the windows and stay away from them.
·Try to bring all of your things inside. Strong winds could even blow away your bikes!
·Listen to the radio or TV for important information.
·If you're told to go to a safer place, do so right away.
【小題1】Which picture can tell meaning of the underlined sentences "... it starts to move higher up into the sky. Then, cooler air around it rushes in. '?

【小題2】When a typhoon comes, we cannot

NOT all memories are sweet. Some people -- all their lives trying to forget bad experiences. Violence and traffic accidents can leave people with terrible physical and emotional scars (傷痕).
Now American researchers think they are close to developing a pill, which will help people forget bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it might reduce, or possibly erase, the effect of painful memories.
In November, experts tested a drug on people in the US and France. The drug stops the body producing chemicals that fix memories in the brain (大腦). So far the research has suggested that only the emotional effects of memories may be reduced, not that the memories are erased.
The research has caused a great deal of discussion. Some think it is a bad idea, while others support it.
Supporters say it could lead to pills that prevent or treat soldiers' troubling memories after war. They say that there are many people who suffer from terrible memories.
"Some memories can destroy people's lives. They come back to you when you don't want to have them in a daydream or nightmare (噩夢). They usually come with very painful emotions," said Roger Pitman, a professor of psychiatry at Harvard Medical School. "This could relieve a lot of that suffering."
But those who are against the research say that changing memories is very dangerous because memories give us our identity (特質(zhì)). They also help us all avoid the mistakes of the past.
"All of us can think of bad events in our lives that were horrible at the time but make us who we are. I'm not sure we want to wipe those memories out, "said Rebecca Dresser, a medical ethicist.
【小題1】The passage is mainly about          

A man made a nice talking machine .It could weigh people’s weight .The man wanted to try the machine before he could make a lot of machines.
He put the machine into the waiting room of a station. There were always lots of people in and out.
The first one who used the machine was an Indian woman. She stood on the machine, the machine thought for a few seconds to decide which language to speak. “Good morning, Madam.” It said in Indian. “Your weight is 72 kilograms. That’s three kilograms more. If you eat more fruit and vegetables, you will be soon all right. Please have a nice day.”
The second one to use the machine was a Chinese girl .She stood on the machine and waited to hear her weight. “Good morning, Miss.” The machine said in Chinese. “Your weight is 45 kilograms. It’s all right for your age. Keep eating what you eat every day. Please have a nice day.”
The third one to use the machine was a very fat American woman .She thought for a long time to stand on the machine .The machine spoke quickly in English, “Good morning. Will one of you get off?”
【小題1】The machine in this passage could           .