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1、Unit 2 Saving the Earth Topic 1 Section C. Learning aims.New words：deaf, environment, print, hearing, recently, disturb.New phrases：not all, be harmful to, quite a few, recently, Its reported that, no better than, do harm to, includingNew languages：1、Not all people know noise is also a kind of pollu
2、tion and is harmful to humans health.2、Many of the workers who print newspapers and books lose their hearing.3、It was reported that many teenagers in America can hear no better than 65-year-old people do.4、It not only disturbs others but also does great harm to peoples hearing.5、Many countries are t
3、rying to solve all sorts of environmental problems, including noise pollution.自主预习英汉互译：1、对人类健康有害2、不是所有的人3、在噪音条件下4、变聋5、lose ones hearing6、no better than7、in public8、对有（很大）害处9、各种写出下列单词的音标并写出他们在文中的词性、词义：deaf/ / _ _environmental/ / _ _print/ / _ _hearing/ / _ _recently/ / _ _disturb/ / _ _.合作探究1、Firstly
4、, check the exercises in the preview.2、Secondly, read 1a and finish 1c.1) Underline the topic sentence of the passage in 1a.2)How does noise harm peoples health?3)Which phrase has the same meaning as“is harmful to”?4)Which sentence shows that many teenagers hearing in America is not good?5)Why is th
5、e hearing of many young Americans not good?6)Has noise pollution caused you any problems? If yes, share your feelings with your classmates.3、Thudly, Read 1a again and finish 1b.当堂评价1、Let the Ss read 1a, and then talk about something about noise pollution.2、Do Part 2, Complete the following passage w
6、ith the correct form of each words. Noise is a kind of _(pollute). Cars and machines produce too much noise. It makes people feel _(comfortable) and _(pleasant). It also does great _(harm) to Peoples _(hear). Noise is very _(harm) to humans _(healthy).3、Check the answer.拓展提升1、Choose one kind of poll
7、ution and discuss it in groups. The following question may help you.1)What is pollution?2)What makes the pollution?3)What problems does it cause?4)In what way is it harmful to peoples life?5)What has been done to soloe these problems?2、After disussing, let the Ss write a short report about a kind of pollution based on 2 and 3. The topic sentence of eac paragraph is given below.pollution ispollution is harmful to peoples healthThe government has tried many ways to solve the problemIf there is some time in class, let the Ss report their passages.Exercise.同步练测考Section C.2