Unit 13 We’re trying to save the earth!
Section A同步习题（附答案）
I根据句意及首字母或汉语提示完成单词。
1.Look! There are some empty _________(瓶子) beside the bin.
2.We got a(n) _________(科学的) result through lots of experiments (实验).
3.Those _________(渔民) lost their boats in the storm.
4.The novel is regarded as one of the greatest _________(作品) of the twentieth century.
5.If no one _________(乱扔) in public places, our environment will become more beautiful.
6.Everyone should obey the l___________.If you break it，you'll be punished.
7.Some tourists throw l___________ here and there. This will pollute the environment.
8.There was some juice left in the b__________ of the glass.
9.Reading has many a__________. For example，it can make you wise.
10.The tourist i________ is developing rapidly in China. More and more tourists go to different places of interest.
IⅠ.用括号内所给单词的适当形式填空。
11.If no one (litter), the park will be very clean.
12.Shanxi Province produces the most (coal) in China.
13.The man is carrying a small black (plastic) bag.
14.Some ______________ (fisherman) went to the beach to see what happened.
15. A new highway in my hometown (build) next month.
16. The girls ___________ (dance) in the classroom now.
17. It’s 5 o’clock now. Mike ____________ (have) dinner.
18. — _______ you ever ________ (be) to the US — Yes, twice.
19. I __________ (live) here since 1999.
20. — Do you often clean your classroom — Yes. Our classroom _________ (clean) every day.
III.按要求完成句子。
21.为了孩子们的发展，应该减少他们周末的学习课程。
For children’s development, their courses on weekends should ____ ____ ______.
22.我们的行动会产生很大的影响。
Our action will ______ ____ ____ _________.
23. 他们打算骑自行车，而不是开车。
They’re going to ride a bike _______ _____ driving a car.
24. 每个人都应该在环保方面发挥作用。
Everyone should____ __ _____ ___the environmental protection.
25. 但是每一次当你喝一碗鱼翅羹的时候，你意识到你杀了一整只鲨鱼吗
But do you ______ that you’re killing a whole shark ______ you enjoy ______ shark fin soup
26. 这种方式不仅残忍，而且对环境有害。
This is ________________, ___________________ the environment.
27. 如果它们的数量下降得太多，将会给所有的海洋生物带来危险。
If their numbers ________ too ________, it will __________________ all ocean life.
28. 很多人以为鲨鱼永远都不会濒临灭绝，因为他们是食物链的最强者。
Many ______ that sharks can___________ because they are _________ in their _______.
29. 在过去的20年到30年，某些品种的鲨鱼数量下降了超过90%。
_________ some kinds of sharks ___________ over 90 __________ in the last 20 to 30 years.
30. 到目前为止，没有任何科学研究表明，鱼翅对健康有益，那么为什么还要吃它们呢
So far, no _____ studies _________ that shark fins_________health, so why ______ them
IV单项选择
31.— There are a lot of ______ of bike riding.
— I agree. It’s good for the environment and it saves money.
A. instructions B. instruments C. advantages D. products
32.My teacher has given me suggestions and I want to thank him from the ____ of my heart.
A. bottom B. condition C. way D. surface
33.— Why not ask Bob to join us in the trip to the zoo tomorrow
— Everyone in our group loves animals, but he always seems______.
A.anxious B. personal C. cruel D. careless
34. A number of visitors____visiting the West Lake and the number of the visitors ___increasing.
A.are; is B. is; are C. are; are D.is ;is
35. Don’t play games on the computer all day. It’s _______ to your eyes.
A. harmful B. thankful C. useful D. helpful
36.The documentary A Plastic Ocean is so impressive that I ________ it several times so far.
A.watched B. watch C. have watched D. will watch
37. — you pass me a pen I’d like to write down the phone number.
— Sure. Here it is.
Can B. Need C. Might D. Must
38. You worry about me. It’s nothing serious.
A. can’t B. mustn’t C. needn’t D. won’t
39. — May I go to the cinema, Mom
— Certainly, but you be back by 11 o’clock.
A. can B. may C. must D. need
40. — Excuse me. Is this the right way to the Summer Palace
— Sorry, I’m not sure. But it be.
A. might B. mustn’t C. can’t D. must
V阅读下面短文，在空白处填入1个适当的单词或括号内所给单词的正确形式。
There is no doubt that global warming has ____41____ (become) one of the biggest problems we face today, so it’s important for us ____42____ (protect) our environment.
As middle school ____43____ (student), what can we do First of all, try to ride bicycles and take public transportation to school instead ____44____ cars because it will make less CO2. It can not only be better for our ____45____ (healthy), but also make it possible for us to get ____46____ (close) to nature. Then, it’s necessary to pick up rubbish and put it into dustbins (垃圾桶). Planting more trees can also help a lot. However, we should never forget to turn off the lights when we leave the classroom. ____47____, why not reuse water and paper to live a low-carbon life
I think it’s ___48___ (everyone) duty to help our earth. And even the simplest activities can make ____49____ real difference to our environment. So don’t put it off! Let’s do ____50____ we can to protect our home.
I believe we will make our world more and more beautiful.
参考答案
1.bottles 2.scientific 3.fishermen 4.works 5.litters
6.law 7.litter 8.bottom 9.advantages 10.industry
11.litters 12.coal 13.plastic 14.fisherman 15.will be built
16. are dancing 17.is having 18.Have been19.have lived20.is cleaned
21.be cut down22.make a big difference
23.instead of 24.play a part in25.realize each time a bowl of
26.not only cruel but also harmful to27.drop low bring danger to
28.believe never be endangered the strongest food chain
29.The numbers of have fallen by percent 30. scientific have shown are good for eat
31-35CACAA 36-40CACC A
41.become 42.to protect 43.students 44.of 45.health
46.closer 47.Moreover 48.everyone’s 49.a 50.what

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