Unit 13 We're trying to save the earth! Section A 3a—4c同步练习（含答案）

姓名： 班级： 分数： Section A 3a—4c 一、翻译下列词组。(20分) 1. 对……有害 3. 在……的顶端 5. 关掉 7. 采取行动 9. 切除 二、阅读3a 回答下列的问题。(30分) 1.How do people hurt the shark 2. 食物链 4. 参加 6. 支付 8. 听说 10. 不再 2.What are the top of the food chain in the ocean's ecosystem 3.Why do many believe that sharks can never be endangered 4.What have the two groups asked the governments to do 5.Are shark fins good for health 三、 完形填空。(20分) Animals are people's friends.But many wild animals are 1 the danger of dying out(灭绝), because the 2 that they are living in has changed greatly.For example,their living area is becoming narrower(狭窄的)and narrower 3 the development of cities and pollution.They have no room to live in 4 the zoo.And many wild animals now can't find enough food to eat.-5 man is killing off(杀尽)animals just for getting their fur,skin,teeth and meat. People should realize how serious the situation is.Now something should be done to 6 the animals.We are supposed 7 up some nature reserves (自然保护区),so that animals can live 8 .Besides,people should not be allowed to kill the endangered animals or eat their 9 .We should do something to make our world cleaner.Fresh air,clean water and grass are all important for animals.The death of the 10 animals will bring a disaster(灾 难)to human beings.(人类). ( )1.A.making B.being C.facing D.doing ( )2.A.environment B.room C.temperature D.country ( )3.A.such as B.because of C.looks like D.because ( )4.A.but B.besides C.except D.except for ( )5.A.At first B.At last C.At that time D.At the same time ( )6.A.kill B.protect C.have D.find ( )7.A.set B.setting C.to set D.to setting ( )8.A.free B.freely C.happy D.unhappily ( )9.A.meat B.fur C.skin D.teeth ( )10.A.danger B.dangerous C.endanger D.endangered 四 、完成句子，每空一词。(30分) 1.我想加入那个环保组织。 I want to the environmental group. 2.应该做一些事来拯救地球。 Something to save the earth. 3.你听说过那个关于鲨鱼的故事吗 you the story about sharks 4.捕捉鲨鱼对环境是有害的。 the sharks the environment. Section A 3a—4c 一、1.be harmful to … 2.the food chain 3.at the top of sth. 4.take part in turn off 6.pay for 7.take action 8.hear of 9.cut off 10.no longer 二、1.People catch sharks,cut off their fins and throw the shark back into the ocean. 2.Sharks. 3.Because they are the strongest in their food chain. 4.They have asked governments to develop laws to stop the sale of shark fins. 5.No,they aren't. 三、1-5 CABCD6-10 BCBAD 四、1.take part in2.should be done 3.Have,heard of 4.Catching,is harmful to