Unit 13 We're trying to save the earth Section A(1a-2d) 课后作业（含答案）

Unit 13 We're trying to save the earth!
Section A (1a-2d)
Ⅰ.根据句意及汉语提示完成句子
1.Robert had worked in the theater for many years, starting at the 　　　　(底层).
2.Nuclear power is cleaner than 　　　　(煤).It creates less pollution.
3.It is reported that two 　　　　(渔民) saved the person falling into the water.
4. The Chinese government has done a lot to control 　　　　(塑料的) pollution in big cities.
5. The building near the school looks really 　　　　(丑陋的).
Ⅱ.用方框中所给单词的适当形式填空
advantage, cost, litter, pollute, wood
6.Don’t throw things on the ground. Look, the sign says “No 　　　　!”
7.In the past, many rivers were 　　　　seriously, but now they are cleaned up.
8.There are many 　　　　of keeping a pet. For example, pets can make their owners have a good mood.
9.The old 　　　　bridge has been over the river for hundreds of years.
10.The blouse is rather beautiful and special, but it 　　　　much.
Ⅲ.完成句子
11.晒太阳太多对你并没有好处。
Too much sun 　　　　　　　　you.
12.严重的脑损伤使他变成了植物人。
Serious brain damage 　　　　　　　　him 　　　　　　　　a vegetable.
13.人们已经发明了新能源汽车来减少空气污染。
New energy cars have been invented to 　　　　　　　　air pollution.
14.大量的阅读可以对一个人的思想产生影响。
A lot of reading can 　　　　　　　　a person’s thoughts.
15.商人们提高了价格,减少了产量,而没有削减成本。
Businessmen raised prices and cut production, 　　　　　　　　cutting costs.
16. 别灰心,生活充满了惊喜和希望。
Don’t lose heart. Life 　　　　　　　　surprise and hope.
17.这条河以前很干净,但现在很脏。我们必须要把它弄干净。
The river 　　　　　　　　very clean, but it’s very dirty now. We must 　　　　　　　　.
18.人人都应该在保护野生动物方面发挥作用。
Everyone should 　　　　　　　　in protecting wild animals.
19.吃太多冰激凌可能会导致胃部疾病。
Eating 　　　　　　　　ice-cream may 　　　　　　　　stomach problems.
20.只要你能保持办公室清洁,我们就会让你使用它。
We’ll let you use the office as long as you can 　　　　　　　　.
Ⅳ.补全对话
Jim: Hi, Janet. Are you free
Janet: Yes, I am. 21.　
Jim: I want to write an article on how to save the environment.
Janet: 22.　　　　　　　　　　　　!
Jim: But I don’t know how to write it. 23.　　　　　　　　　　　　
Janet: Well, first, you can start with turning off the lights when you leave the room.
Jim: Yes, that’s too easy. What’s next
Janet: Second, how about riding a bike to school Don’t take a car or a taxi if you don’t have to.
Jim: That will save money too. What else
Janet: 24.　　　　　　　　　　　　.
Jim: Hmm…Newspapers, magazines, mail…we get a lot of paper at home.
Janet: And last, take a bag with you when you go shopping. Don’t use plastic bags.
Jim: OK. My parents often go shopping. I’ll tell them about it. 25.　　　　　　　　　　　.
Janet: Not at all.
答案
Ⅰ.1.bottom　2.coal　3.fishermen 4.plastic　5.ugly
Ⅱ.6.littering　7.polluted　8.advantages 9.wooden　10.costs
Ⅲ.11.isn’t good for　12.turned; into
13.cut down　14.make a difference to
15.instead of　16.is full of/is filled with
17.used to be; clean it up
18.play a part/role　
19.too much; lead to
20.keep it clean
Ⅳ.21.What’s up/What happened
22.Sounds great/That’s a good idea/Good idea…
23.Would you please give me a hand/Can you help me…
24.Third, try to recycle paper/Try to recycle paper…
25.Thanks a lot/Thanks/Thank you very much…