Unit 13 We're trying to save the earth!
第二课时 Section A(3a-3b)
基础训练
I.根据句意及汉语提示填写单词。
1. Too much sunlight can be (有害的).
2. They found out the truth by doing a lot of (科学的) experiments.
3. It is just a (残酷的) joke of nature.
4. Electronic (行业) has developed quickly in the past few years.
5. You will be punished if you break the (法律).
Ⅱ.用所给词的适当形式填空。
1. Eating too much junk food is (harm)to your health.
2.The (science)report is valuable.
3. I think more (law)must be made to stop people from cutting down forests.
4. Hainan is in the (south) part of China.
Ⅲ.根据句意填空,每空一词。
1. A little wine will not be harmful your health. Just don't drink too much.
2. A break between classes is a good time for students to play sports and talk with their classmates. So it not only helps with students' health,
also improves their social skills.
3. -I heard that Paul hurt himself badly in the earthquake.
-Yes. The doctor had to cut his right leg to save him.
4. They saw some beautiful scenery the top of the mountain.
5. In our school library there a number of books on science, and the number of them growing larger and larger.
Ⅳ.根据汉语意思完成句子。
1.这座房子坐落在小山顶上。
The house stands the hill.
2.我们不但饿了,而且也累了。
We were hungry, tired.
3.他的中指在工作时不小心被切掉了。
His middle finger accidentally while working.
4.吃很凉的食物对胃有害。
It the stomach to eat very cold food.
5.当地政府已经制定了法律来保护这些濒危动物。
The local government to protect these endangered animals.
能力提升
V.阅读理解。
1
Animals have been killed for their fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the world forever. Hundreds more are on the danger list today. About 170 kinds in the United States alone are considered in danger.
2 Because we need animals. And because once they are gone, there will never be any more.
Animals are more than just beautiful and interesting. 3 Every animal has its place in the balance of nature(生态平衡). Destroying one kind of animal can create many problems.
For example, when farmers killed large numbers of hawks, the farmers' stores of corn and grain were destroyed by rats and mice. Why 4 With no hawks to keep down their numbers, the rats and mice multiplied (繁殖) quickly.
Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger.
Quite a few countries have passed laws. These laws forbid(禁止)the killing of any animals or plants on the danger list. 5
根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使文章意思通顺、内容完整。
A. Slowly, the number of some animals in danger is growing.
B. They are more than just a source of food.
C. Because hawks eat rats and mice.
D. Animals are natural resources that people have wasted all through our history.
E. Why should people care
1. 2. 3. 4. 5. .
Ⅵ.完形填空。
When peoplethink1oftigers, they think: strong and 1 . But now, the big animal is calling for our 2 .
There were once eight kinds of 3 in the world, but three died out during the 20th century. In the last 70 years,the 4 of Siberian tigers (东北虎) has gone from as many as 300 to 5 22 somewhere. The Siberian tiger has been 6 dying out completely. 7 the government doesn't make any efforts, it's quite 8 that there will be no more Siberian tigers in China in ten to twenty years.
In order to double the number of wild tigers in the 9 ten years, the World Wildlife Fund(世界自然基金会)has started a program recently. It 10 save wild tigers and put an end to tiger hunting and killing. China, together with twelve other 11 has joined in.
Wild animals, such as red deer and wild pigs,are the main 12 of the tigers. The hunting of these 13 is the greatest threat (威胁)to tigers. So the most important thing is 14 the animals that tigers eat. To protect the wild tigers, we need to 15 more people to stop eating and hunting wild animals.
( )1.A.silly B. humorous C. dangerous D. noisy
( )2.A.help B. name C.effort D.sign
( )3.A.pigs B. tigers C. deer D. koalas
( )4.A.name B. kind C.number D. owner
( )5.A. less than B. more than C. bigger than D. better than
( )6.A. in need of B. in danger of C. in front of D. in case of
( )7.A.Though B.Since C. As D. If
( )8.A. possible B.impossible C. necessary D. important
( )9.A.last B. next C. past D. lastly
( )10. A. aims to B. used to C. refuses to D. decide to
( )11.A. cities B. provinces C. countries D. towns
( )12.A.friends B. food C. members D.families
( )13.A.animals B. plants C. products D. birds
( )14. A. to sell B. to kill C. to save D. to eat
( )15. A. call on B. call up C. call in D. call off
参考答案
I.1.harmful 2.scientific 3. cruel 4.industry 5.law
II. 1. harmful2.scientific 3. laws 4.southern
III.1.to 2. but 3. off 4. at 5.are;is
IV. 1. at the top of 2. not only; but also 3. was; cut off
4. is harmful to 5. has developed laws
V. 1~5 DEBCA
VI. 1~5 CABCA 6~10 BDABA 11~15 CBACA