Unit 4 Wildlife Protection 课件（人教版必修2，课标通用）.pptVIP

We have to understand the problem, in a new light that we protect ourselves through protecting wildlife. On the one hand, any species of wildlife, as a critical(关键的) joint of the ecological chain, helps to establish the ecological balance. If one species becomes extinct, it will disappear forever. What_is_more③， it will inevitably(必然地) result in the extinction of a chain④ of wildlife and the disruption (破坏)of the ecological balance. Unpredictable (不可预知的)disasters may occur. It is urgent for us to protect wildlife right now before it is too late, because man has already polluted the environment seriously and threaten the existence of many wild species. Lets take action to protect wildlife. Learning to live in_harmony_with⑥ all wildlife is part of modern civilization. Notes： ①extinction [IkstI?k??n] n．灭绝 ②significance [sIgnIfIk?ns] n. 重要性 ③What is more而且；此外 ④chain [t?eIn] n．vt.连锁；用链子锁 ⑤genetic codes遗传密码 ⑥in harmony with与……协调 Read the passage carefully and judge the following sentences true(T) or false(F)． 1．Protecting wildlife is a task of students. (　　) 2．People should learn to live with animals together. (　　) 3．There are many factors leading to animalsextinction. (　　) 4．Environment pollution can make people live shorter. (　　) 　 Unit 4　Wildlife protection F T T T