Unit 13 We're trying to save the earth! 第二课时Section A(3a-3b) 一、根据句意，从方框中选择单词并用其适当形式填空。 industry, environment, law, cruel,shark live in the ocean. 2. You are supposed to know the of your own country. 3. There are some protection groups around the world. 4. These materials are widely used in this . 5. Don't play a joke on him about his weight-it's . 二、根据句意，用括号内所给单词的适当形式填空。 1. Nelly loves fast food a lot though many others think it is (harm) to health. 2.So far, no (science)studies have shown that shark fins are good for health. 3. This kind of machine is popular in (south)China. 4. Pandas are (danger)animals, so we must protect them. 5. I hear there is a big (sell)in the shoe shop at the corner of the street. 三、单项选择。 ( )1.-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 ( )2.-What the number of the students in your school -About two thousand. A number of them from the countryside. A.is;are B.is;is C. are; is D.are;are ( )3. I think she is a singer, but none of my friends have ever her. A.heard B. heard of C. heard from D. listened to ( )4.—Mike,don't play with your phone when the lights are off. -I know. That will my eyes. A. be harmful to B. be good at C. be responsible for ( )5. Chinese Doctors(《中国医生》) is very exciting.I he likes it very much. A.Either;or B.Neither;nor C.Both;and D. Not only; but also 四、根据汉语意思及所给提示词完成句子，词数不限。 1.我们必须做些什么来保持生态平衡。(do) We must to keep the balance of nature. 2.厨师把这条鱼的尾巴切断了。(cut) The cook the tail of the fish. 3.长颈鹿可以够到树顶的叶子。(top) Giraffes can reach the leaves the trees. 4.实际上，除了他，所有人都听说了这个噩耗。(hear) ,everyone except him the awful news. 5.我过去一直认为鲨鱼在它们的食物链中是最强的。(chain) I used to think . 参考答案 一、1.Sharks 2.laws 3.environmental 4.industry 5. cruel 二、1.harmful 2.scientific 3.southern 4.endangered 5. sale 三、1-5 CABAD 四、1.do something 2.cut off 3.at the top of 4.In fact, heard of 5.sharks were the strongest in their food chain
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