精品学习网初中频道提供大量初中生学习资料，在第一时间更新初中资讯。以下是初三英语阅读理解练习：

21.

The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly 70% of the earth's surface is covered with water. But about 97% of that is sea water, or salt water. Man can only drink and use the other 3%——the fresh water from rivers, lakes, underground, and other sources. And we can not even use all of that. Even worse, some of it has been made dirty.?

However, as things stand today, this fresh water is still enough for us. But our need for water is becoming larger and larger quickly——almost day by day. We should take steps to do with this problem now and in this way we can get away from a serious world wide water shortage (缺少) later on.?

We all have to learn how to stop wasting our valuable water. One of the first steps is to develop ways of reusing it. Today in most l arge cities, water is used only once and then sent out into a sewer system(下水道). From there it returns to sea or runs into underground places.?

But even if every large city reused its water, we still would not have enough. All we'd have to do to make use of sea water in the world is to remove the salt. If we take these steps we'll be in no danger of drying up.?

16.　The world is thirsty for water because .?

A. man hasn't got enough food to eat ?B. we haven't got enough fresh water ?

C. only 70% of the earth's surface is water ?D. more water is sent into sewer systems ?

17.The underlined word valuable means .?

A. much and salty?B. fresh and enough?C. dear and useful?D. clean and helpful?

18.　What should we do if we want to have enough fresh water??

(a) Make full use of the sea water.?

(b) Carry salt water into lakes or rivers.?

(c) Try to save the fresh water as much as possible.?

(d) Do our best to use the water again.?

(e) Drink and use all the water on the earth's surface.?

A.(c)and(e)???B.(a)and(d)?C.(a),(c)and(d) D.(b),(d)and(e)?

19.The best but the most difficult way to solve (解决) the water problem of the

world is to .?

A. remove the salt from sea water ?B. make the water in cities clean ?

C. take water from underground ?D. make the need for water smaller ?

20. What's the best title (标题) for this passage??

A. The Importance of the Water?B. The World's Water Problem?

C. The Thirsty World ?D. Fresh Water and Sea Water?

Keys:??16.B??17.C??18.C?19.A??20.B??

22.

Last July, Mr Johnson's 12?year?old car died on California's Santa Ana Freeway. It was an hour before the sun went down, and he was 25 miles from home. He couldn't reach anyone to pick him up, so he decided to take a bus. Not knowing the routes(路线), he thought he'd just head east.? A bus pulled up, and he asked the driver how far she was going, "Four more lights", she said. There was another bus he could take from there. “This clearly was going to be a long night." Mr Johnson said to himself.?

She dropped Mr Johnson off at the end of her route and told him which bus to look for. After waiting 30 minutes, he began to think about a very expensive taxi ride home. Then a bus pulled up. There was no lighted number above its windshield(挡风玻璃). It was out of service. But the door opened, and he was surprised to find that it was the same driver.?

“I just can't leave you here," she said. “This isn't the nicest place. I'll give you a ride home."?

“You'll drive me home in the bus?" he asked, perplexed(困惑的).?

“No, I'll take you in my car," she said.?

“It's a long way," he protested.?

“Come on," she said. “I have nothing else to do."?

As they drove from the station in her car, the driver began telling him a story. A few days earlier, her brother had run out of gas. A good Samaritan picked him up, took him to a service station and then back to his car. “I'm just passing the favor along," she said.?

When Mr Johnson gave her money as a thank?you, she wouldn't hear of it. “That wouldn't make it a favor," she said. “Just do something nice for somebody. Pass it along."?

21. Why did Mr Johnson say that he would have a long night? Because .?

A. he didn't know the routes? B. no driver would give him a ride?

C. he perhaps would have to take a taxi??

D. he wondered how long he had to wait for the next bus??

22. According to (根据)the story, the place where Mr Johnson waited for the second bus was　 .?

A. a little dark?B. neither quiet nor nice?C. a little unsafe?D. neither clean nor beautiful?

23. After waiting 30 minutes, Mr Johnson changed his mind because . ?

A. he got tired and worried ?B. no bus would come at the time??

C. a taxi ride would be more comfortable??D. he knew the driver would never return??

24. The bus driver drove Mr Johnson home later because .?

A. she did as her brother had told her??B. she happened to go in the same direction(方向)??

C. she wanted to get more money from him?

D. she wanted to do something good for other people??

25. What can we learn from the story??

A. We should only help the person who helped us.??

B. We should remember him if someone helped us. ??

C. We should help other people as the bus driver did.??

D. We should give some money to the person after his help.?

Keys：21.D??22.C?23.A??24.D??25.C

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 初三英语阅读理解20练（一）