Unit 13 We're trying to save the earth! Section A(3a-3b) 课时练习（含答案）人教九年级全册

中小学教育资源及组卷应用平台
Unit 13 We're trying to save the earth!
第二课时 Section A(3a-3b)
基础训练
一、用方框中所给词的适当形式填空。
industry law harm cruel science
1. It has been written into that drunk driving can be a crime.
2.The truth was that my class lost the first basketball game, but we didn't lose heart.
3. The expert gave us a explanation of why the robot could talk.
4. More and more young people are paying attention to the new media .
5. Charlie, don't read in the sun. It's to your eyes.
二、用括号内所给词的适当形式填空。
6. Parents are supposed to protect their children from (harm) information on the Internet.
7. The number of bike riders in Beijing (increase) greatly since the government built more cycle ways.
8. This is a(n) (danger)animal. We should try to save it.
9. Something must be done to protect the (shark)because many of them are in danger now.
10. In fact, lots of whales (catch)and traded in this industry every year.
三、根据所给汉语提示完成下列句子。（每空限填一词)
11.保护海洋生态系统食物链的平衡非常重要。
It's very important to keep the balance of in the ocean ecosystem.
12.你最好不要经常看3D电影。它们对你的眼睛有害。
You'd better not watch 3D films too often. They
your eyes.
13.听！贾森正在练歌房里引吭高歌。
Listen! Jason is singing his voice in the singing hall.
14.他的中指在工作时不小心被切掉了。
His middle finger accidentally while working.
15.很多人听说过刘传健。电影《中国机长》就是根据他的故事改编的。
Many people have Liu Chuanjian. The film The Captain is based on his story.
四、语法与情景对话。
( )16.选项中找出其画线部分与其他三个单词的画线部分读音不同的选项。
A.apple B. harmful C. catch D. backpack
( )17. The king was so to his people that many of them were against him.
A.cruel B.friendly C.polite D.similar
( )18. -What do you think of the plan
-It's great! we students our teacher likes it very much.
A. Both; and B. Either;or
C. Neither; nor D. Not only; but also
( )19.The number of the whales smaller and smaller because of human activities now.
A.were B. was C. is D. are
( )20. The population of this city by 15% in the past ten years.
A.increased B. will increase C. has increased D. increase
能力提升
五、阅读理解。
Taking away a city's rubbish is a big job.Every day trucks come into a city to collect it.Most rubbish is made up of things we can't eat or use. If we kept these things, we would soon have a mountain of rubbish.
In some cities, the rubbish is collected and taken outside of the city to a dump(垃圾站).Often the city dump is placed where the ground is low or there is a big hole. The kitchen rubbish is broken into small pieces and sent into the sewage system(污水系统). The sewage system takes away the used water from toilets,bathtubs and other places.
To keep mice and flies away, some earth is used to cover the newly dumped rubbish. Later,grass may be planted on the rubbish-filled land. Finally, a house or a school may be built there,and then you'd never know that this had once been an old rubbish dump.
In other cities, the rubbish is burnt in special places. The fire burns everything but the metal. Sometimes the metal can be used again in factories where things are made of metal. The food parts of rubbish are put in special piles where they slowly change into something called humus (腐殖质)，which looks like black earth. It is rich with kinds of things that feed plants and help them grow.
阅读以上文章，根据其内容判断下列各小题的正误。正确的填（涂）A,错误的填（涂）B。
( )21. You can most probably read the passage in a science book.
( )22. Many houses or schools are built on the rubbish-filled land.
( )23. We could take care of a used metal box by burning it off according to the passage.
( )24. According to the passage, the food parts of rubbish can be used again to feed animals.
( )25. The main idea of the passage is to introduce different ways to deal with rubbish.
六、任务型完形填空。
阅读下面的短文，用方框中所给词的适当形式填空，使文意通顺，结构正确。（每个单词限用一次)
harmful bottom scientific fisherman and thousand to us lucky laws
Almost everyone has released(释放) a balloon into the sky. It has brought 26. a lot of pleasure. However, we probably haven't realized that we get the pleasure at a great cost,because releasing balloons into the sky is 27. to the environment, especially animals.
When balloons are let go, they can travel28. of miles. Then they may end up anywhere, even at the 29. of a river or in the sea. A lot of 30. studies show that balloons are hard to breakdown(分解), because they are usually made of rubber(橡胶) or plastic. Many animals can't tell the difference between food 31. litter. As a result, some animals may consider balloons as food. When an animal swallows (吞下) a balloon,it can block its intestinal tract(肠道)，leading 32. the animal's death. Don't you think it is cruel to the animal It is reported that many animals are killed every year because they swallow balloons.33. often catch fishes whose intestinal tracts are blocked by balloons. We can't afford to lose our good friends -animals.
34. ,many countries have realized the danger of releasing balloons and they have already taken action. For example,there are 35. about releasing balloons in several states in the US, also in the UK and Australia.
参考答案
一、1.law 2.cruel 3.scientific 4.industry 5.harmful
二、6.harmful 7.has increased 8. endangered 9.sharks 10.are caught
三、11.the food chain 12.are harmful to /do harm to 13.at the top of
14.was, cut off 15.heard of
四、16-20 BADCC
五、21-25 ABBBA
六、26.us 27.harmful 28.thousands 29.bottom 30.scientific 31.and 32.to 33.Fishermen 34.Luckily 35.laws
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