Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts (干旱) are causing famine and distress in some areas, and industrial and agricultural by-products are polluting water supplies. Since the world's population is expected to double in the next 50 years, many experts think we are on the edge of a widespread water crisis.

　 But that doesn't have to be the outcome. Water shortages do not have to trouble the world---if we start valuing water more than we did in the past. Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually free resource of which we can use as much as we like in any way we want.

　 Instead, for all uses except the domestic demand of the poor, governments should price water to reflect its actual value. This means charging a fee for the water itself as well as for the supply costs.

　 Governments should also protect this resource by providing water in more economically and environmentally sound (健康的) ways. For example, often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions (凹地) and pumping it to nearby cropland.

　 No matter what steps governments take to provide water more efficiently, they must change their institutional and legal approaches to water use. Rather than spread control among hundreds or even thousands of local, regional, and national agencies that watch various aspects of water use, countries should set up central authorities to coordinate (调整) water policy.

1.What is the real cause of the potentials water crisis.

　　A. Only half of the world's water can be used.

　　B. The world population is increasing faster and faster.

　　C. Half of the world's water resources have been seriously polluted.

　　D. Humanity has not placed enough value on water resources.

2.As is indicated in the passage, the water problem _________ .

A. is already serious in certain parts of the world.

B. has been exaggerated by some experts in the field

　　C. poses a challenge to the technology of building reservoirs(水库)

　　D. is underestimated by government organizations at different levels

3. According to the author, the water price should _______ .

　　A. be reduced to the minimum        B. stimulate domestic demand

　　C. go with its real value             D. take into account the occurrences of droughts

4.In order to raise the efficiency of the water supply, measures should be taken to ______ .

　　A. guarantee full protection of the environment

　　B. centralize the management of water resources

　　C. increase the sense of responsibility of agencies at all levels

D. encourage local and regional water resources

阅读下面短文，从每题所给的四个选项中，选出最佳答案。

Hi, dear boys and girls! Do you know how to be a healthy kid? Here are some rules you should follow.

First, eat different foods, especially fruit and vegetables. You may have a favorite food, but you'd better eat something different, if you eat different foods, you will probably get more nutrients (营养物质) your body needs.

Then, drink water and milk as often as possible. When you're really thirsty, cold water is the No. l choice. Milk is a great drink that can give you more calcium (钙) your body needs to grow strong bones .

Next, listen to your body. How do you feel when you are full? When you are eating, notice how your body feels and when your stomach feels comfortably full. Eating too much will not make you feel comfortable and make you fat.

Afterwards, limit (限制) screen time. Screen time is the time you watch TV, DVDs and videos, or using computers. It is good to take more exercise such as basketball, bike riding and swimming. You can't watch TV for more than two hours a day.

Finally, be active. One thing you'd like to do as a kid is to find out which activity you like best. Find ways to be active every day.

Follow these rules and you can be a healthy kid.

You have to eat different kinds of foods especially _________.

A. meat 　　B. hamburgers　    C. sweets      D. fruit and vegetables　

Which kind of drinks can give you more calcium?

A. Juice.　　    B. Milk.　　　　C. Cold water.　D. Tea.

According to the passage, how many rules should you follow if you want to be healthy?

A. Five.　　      B. Nine.　　　　　   C. Fifteen.　　　D. Thirteen.

According to the passage, which of the following is TRUE?

A. When you're eating, you don't have to pay attention to how your body feels.

B. You can eat your favorite food as much as you can .

C. You can watch TV whenever you like to get more information.

D. We should try to live in an active way in our life.

Which is the best title of the passage?

A. How to make yourself popular        B. How to be a healthy kid

C. How to be a popular kid           D. How to make your parents healthy

-How can I use this washing machine??　

-Well, just refer to the _______.

　 A. explanations 　 B. expressions  C. introductions 　 D. directions

Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts (干旱) are causing famine and distress in some areas, and industrial and agricultural by-products are polluting water supplies. Since the world's population is expected to double in the next 50 years, many experts think we are on the edge of a widespread water crisis.

　 But that doesn't have to be the outcome. Water shortages do not have to trouble the world---if we start valuing water more than we did in the past. Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually free resource of which we can use as much as we like in any way we want.

　 Instead, for all uses except the domestic demand of the poor, governments should price water to reflect its actual value. This means charging a fee for the water itself as well as for the supply costs.

　 Governments should also protect this resource by providing water in more economically and environmentally sound (健康的) ways. For example, often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions (凹地) and pumping it to nearby cropland.

　 No matter what steps governments take to provide water more efficiently, they must change their institutional and legal approaches to water use. Rather than spread control among hundreds or even thousands of local, regional, and national agencies that watch various aspects of water use, countries should set up central authorities to coordinate (调整) water policy.

What is the real cause of the potentials water crisis.

　　A. Only half of the world's water can be used.

　　B. The world population is increasing faster and faster.

　　C. Half of the world's water resources have been seriously polluted.

　　D. Humanity has not placed enough value on water resources.

As is indicated in the passage, the water problem _________ .

A. is already serious in certain parts of the world.

B. has been exaggerated by some experts in the field

　　C. poses a challenge to the technology of building reservoirs(水库)

　　D. is underestimated by government organizations at different levels

According to the author, the water price should _______ .

　　A. be reduced to the minimum        B. stimulate domestic demand

　　C. go with its real value             D. take into account the occurrences of droughts

In order to raise the efficiency of the water supply, measures should be taken to ______ .

　　A. guarantee full protection of the environment

　　B. centralize the management of water resources

　　C. increase the sense of responsibility of agencies at all levels

D. encourage local and regional water resources

完型填空　　

I arrived in the United States on February 6, 1996, but I remember my first day here very clearly. My friend was waiting for me when my plane landed at Kennedy Airport at three o'clock in the afternoon. The weather was very __1__ and it was snowing, but I was too excited to __2__. From the airport, my friend and I took a taxi to my __3__. On the way, I saw the skyline of Manhattan for the __4__ time and I stared in astonishment at the famous skyscrapers and their man-made __5__. My friend helped me unpack at the hotel and then left because he had to go back to work. He promised to return the next day.

　　__6__ my friend had left, I went to a __7__ near the hotel to get something to eat. Because I couldn't speak a single __8__ of English, I couldn't tell the __9__ what I wanted. I was very upset and started to make some __10__, but the waiter didn't __11__ me. Finally, I ordered the same thing the man at the next table was __12__. After dinner, I started to walk along Broadway __13__ I came to Times Square with its cinemas, theatres, neonlights, and huge crowds of people. I did not feel tired, so I __14__ to walk around the city. I wanted to see __15__ on my first day. I knew it was __16__, but I wanted to try.

　　When I returned to the hotel, I was __17__, but I couldn't __18__ because I kept hearing the fire and police sirens（警笛）during the night. I lay __19__ and thought about New York. It was a very big and interesting city with many tall buildings and big cars, and full of __20__ and busy people. I also decided right then that I had to learn to speak English.