4. Which is the best way for small and hot places to get fresh water?

A. Boiling or heating the sea water. B. The way in hotter and drier places.

C. The Symi’s way. D. Freezing the sea water in cold places.

3. From the passage we know the Symi factory ________________.

A. seems good but too small　 B. is a fresh water-making factory

C. can make much fresh water at a time　 D. does not need sunshine every day

2. What is the writer mainly talking about in the passage?

　　　 A. Water-making factories in different countries.

B. The ways of making fresh water from sea water.

C. Hot and dry places.

D. How to make use of the sun.

1. From the passage we know that fresh water___________________.

A. is needed in every country　　　 B. can be found in many factories

C. can be used in many ways　　　 D. is very important for factories

5. 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

　 ⑻ Many places in the world need more fresh water. Every country is trying to find ways to turn salt water into fresh.

　 Why aren’t there many factories like the Symi factory?

　 In some places, the sun is not hot enough. Or it does not shine every day.

In such places, other way of heating sea water can be used. These ways cost more money, but they work faster than the sun. By boiling　 see water with high heat, a lot of fresh water can be made quickly. But heating is not the only way to get fresh water from salt water. Other ways are tired.

One way is freezing (冷冻). The fresh part of salt water freezes first. To get fresh water, the bits of ice are taken out.

Which way is best? The one that gives the most water for the least money. It may be a different way for each place.

Symi’s way seems very good for small, hot places. It does not make very much water at a time. But the factory is easy to build and costs little.

That’s why people in many dry places talk about Symi!

4. Americans usually use motor homer____________.

A. to travel with all the family members of holiday

B. to do some shopping with all the family members

C. to visit their grandparents at weekends

D. to drive their children to school every day

3. A motor home is usually owned by a family with__________.

　 A. a baby B. much money　 C. more than two children　 D. interest in vans

2. Before Mr. Hagen and his wife bought a van, they__________.

　　 A. sold their old house 　　　　　 B. moved to their grandparents’ house

C. built a new place for a van 　　 D. sold their second car

1. From the passage, a van is also called ____________.

A. a motor car 　　B. a motor home 　C. a motorbike 　D. a big truck

5.This passage tells us_____________.

A. how photography was developed

B. how to show your ideas and feelings in pictures

C. how to take pictures in the world　

D. how to use different cameras

(7)Americans with small families own a small car or a large one. If both parents are working, they usually have two cars. When the family is large, one of the cars is sold and they will 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 hold seven persons easily, so a family three children could ask their grandparents to go on a holiday travel They could all travel together.

　 Mr. Hagen and his wife had a third child last year. This made them sell a second car and bus a van. Their children sixth and seventh seat are used to put other things, for a family of five must carry many suitcases (衣箱) when they travel. When they arrive at their grandparents’ home , the suitcases are brought into the two seats can then carry the grandparents.

　 Americans call vans motor homes. A motor home is always used for holidays. When a family are traveling to the mountains or to the seaside, they can live in their motor home for a few days 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. In America there are many parks for motor homes.