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1、Protect Our EnvironmentProtect Our Environment the same place at different time in 1996 now The reason of the difference between the two pictures environment pollution air pollution Watch a video and thinkWatch a video and think Explore The coming of the air pollution poisonous gas 有毒氣體有毒氣體 industri

2、al gas 工業(yè)氣體工業(yè)氣體 What can you see in the photos? plastic bag 塑料袋塑料袋 white pollution 白色污染白色污染 flood of the Yangtze River The reason of flood of the Yangtze River human activity 人類活動人類活動 vegetation destruction 破壞植被破壞植被 habitat 棲息地棲息地 desertification 荒漠化荒漠化 glacier melting 冰川融化冰川融化 How to improve our en

3、vironment? air pollution: forbid the fatory from disorderly discharge white pollution : no longer use plastic bags vegetation destruction : not deforestation plant more trees Lets learn the new words forbid： fbd sb (from doing sth) 禁止；不準禁止；不準 poisonous:英英 pzns 有毒的有毒的;有害的有害的;惡意的惡意的; glacier:英英 glsi(r

4、) 冰河，冰川冰河，冰川 habitat: hbtt 產(chǎn)地產(chǎn)地;（動物的）棲息地，住處（動物的）棲息地，住處; gas (n.) 氣體氣體;汽油汽油;瓦斯瓦斯;毒氣毒氣 poisonous gas 有毒氣體有毒氣體 vegetation vedten 植物（總稱）植物（總稱） destruction 英英 dstrkn 摧毀摧毀;破壞破壞 desertification 英英 dz:tfken 沙漠化沙漠化 melt melt 熔化，溶解熔化，溶解;逐漸融合逐漸融合;逐漸消失逐漸消失 glacier melting 冰川融化冰川融化 Please make a sentence forbid：

5、 sb (from doing sth) 禁止；不準禁止；不準 The government should forbid people from cutting down trees. poisonous The emission of poisonous gas can cause air to be polluted Grammar: Passive Voice structure: be done The floor was swept. 地板地板被被打掃了打掃了 The glass was broken by the boy. 杯子杯子被被那個男孩打破了那個男孩打破了 這個工作這個工作

6、做完做完了了 The work has been done. Grammar: Present Perfect structure: have/has done He has lived here since 1978. 自從自從1978年以來年以來,他一直住在這兒他一直住在這兒. I have just turned off the light. 我我剛剛剛剛把燈關上把燈關上. She has taught in the school for ten years. 她在這所學校教書她在這所學校教書已經(jīng)已經(jīng)10年了年了. Grammar: Present Perfect have/has 在前

7、面，過去分詞在后面在前面，過去分詞在后面 以前以前(before)從來不從來不(never)出現(xiàn)出現(xiàn) 最近最近(recently)曾經(jīng)曾經(jīng)(ever)一兩遍一兩遍(once.) 自從自從(since)剛剛剛剛(just)一段后一段后(for+一段時間一段時間) 今天今天(today)已經(jīng)已經(jīng)(already)很明顯很明顯 1.I _ the book for 20 years. A buy B have bought C have had D have been 2.I _ Australia twice.What about you? A went to B have been to C h

8、ad been to D would go to Single chooseSingle choose C B 1.我剛剛丟了的化學書我剛剛丟了的化學書 I have just lost my chemistry book. 2.我以前從來沒去過那個農(nóng)場我以前從來沒去過那個農(nóng)場 I have never been to the farm bedore. 3.他已經(jīng)吃過午飯他已經(jīng)吃過午飯 He has already had lunch 4.你已經(jīng)看過這部電影了嗎？你已經(jīng)看過這部電影了嗎？ Have you seen the movie yet? T Translation exercisesr

9、anslation exercises Oral Composition 假如你是中學生假如你是中學生John，你想就環(huán)境保護的問題向，你想就環(huán)境保護的問題向市領導寫一封信談談你的想法。市領導寫一封信談談你的想法。 內(nèi)容：內(nèi)容： 本市存在的環(huán)境問題及造成的影響本市存在的環(huán)境問題及造成的影響 針對問題提出的合理化建議針對問題提出的合理化建議 Summary 1.passive voice structure: be done 2.present perfect structure: have/has done Homework Writing: 假如你是中學生假如你是中學生Tom，你想就環(huán)境保護的問題向，你想就環(huán)境保護的問題向市民發(fā)出呼吁，希望市民一起行動起來，保護生市民發(fā)出呼吁，希望市民一起行動起來，保護生態(tài)環(huán)境，共筑美好家園。以上述材料為題材，寫態(tài)環(huán)境，共筑美好家園。以上述材料為題材，寫一篇不少于一篇不少于100詞的作文。詞的作文。 Thank you for your cooperationThank you for your cooperation