Americans with small families own a car. If both parents are working , they usually have two cars. When the family is larger, they will sell one of the cars and buy a van(住房汽车).

A small car can hold four persons and a large car can hold six persons but it is very crowded. A van can hold seven persons easily, so a family with three children can ask their grandparents to go on a holiday travel. They can all travel together.

Mr. Hagen and his wife had a third child last year. So they sold their second car and bought a van. They thought it would be more convenient for them to go out together.

Americans call vans motor homes. They always use them for holidays. When a family is traveling to the mountains or to the seaside, they can live in their motor home for a few days or weeks. All the members of a big family can enjoy a happier life when they are traveling together. That is why motor homes have become very popular.

1.Americans also call vans___________.

A. Motor cars B. Motor homes

C. Motorbikes D. motor trucks

2.A family with _________ usually has a van.

A. a baby

B. Much money

C. more than two children

D. interest in vans

3.Americans usually use motor homes to_________

A. Travel with all the family members for holidays

B. Do some shopping with all the family members

C. Visit their grandparents at weekends

D. Drive their children to school every day

4.Motor homes have become popular because________

A.they can take people to another city when people are free

B.They can let families have a happier life when they go out for their holidays

C.Some people think motor homes are cheap

D.Big families can put more things in motor homes

The world is not hungry, but it is thirsty. It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of (短缺) water. Why? Because about 97% of water on the earth is sea water which we can’t drink or use for watering plants directly. Man can only drink and use the 3%--- the water that comes from rivers and lakes. And we can’t even use all of that, because some of it has been polluted.

Now more water is needed. The problem is: Can we avoid a serious water shortage (短缺) later on?

First we should all learn how to save water. Secondly, we should find out the ways to reuse it. Scientists have always been making studies in the field. Today, in most large cities water is used only once and then runs to the sea or rivers. But it can be used again. Even if every large city reused its water, still there would not be enough. What could people turn to next?

The sea seems to have the best answer. There is a lot of water in the sea. All that needs to be done is to get the salt out of the sea water. This is expensive, but it’s already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we’ll be in no danger of drying up.

根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。

1. The world is thirsty because _____ .

A. 3/4 of the earth is covered with water

B. we have enough sea water to use directly

C. we haven’t used all the water in rivers and lakes

D. About 97% of water on the earth can’t be drunk or used for watering plants directly

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

A. 再用 B. 改造 C. 替换 D. 启用

3.From the passage we learn _____.

A. if every city reused its water, we’ll be in no danger of drying up

B. man can only drink and use about 25% of water on the earth

C. today in most large cities water is used only once

D. water can be used only once

4.To avoid the serious water shortage, which of the following is the most important?

A. Save water and try to make good use of the water in rivers and lakes.

B. Don’t pollute water and keep all rivers and lakes clean.

C. Make dirty water clean and then reuse it.

D. Try to find a cheaper way to get the salt out of the sea water.

5.The name of the passage would be ______.

A. The Sea Water

B. How to Save Water

C. The Thirsty World

D. The Polluted Water

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