九年级英语13单元课件

1、Unit13 Were trying to save the earth!Section A 1a -2c（第1课时） Factories produce too much dangerous smoke. The traffic produces too many gases. Some people smoke in public places. air pollutionThe factories that burn coal pollutethe air with a lot of black smoke. n. 煤炭煤炭Factories put waste into the riv

2、er.water pollutionnoise pollutionThere are more cars on the road.litter v. 乱扔乱扔 n. 垃圾垃圾rubbish， waste垃圾，废弃物垃圾，废弃物People should throw away litter in the bin.n. 垃圾箱垃圾箱land pollution1aHere are some words related to different kinds of pollution. Write them in the box below. Then add more words.noise pol

3、lution _carsair pollution _water pollution _loud musicplanesmobile phonesfactoriescarssmokingshipsfactorieslitteringrubbishbuilding housesbuilding housesloud music cars rubbish planeslittering ships factories smokingbuilding houses mobile phones1b. Listen to the tape and complete the sentences. What

4、 was the problem? The river was _.Even the bottom(底部）of the river was full of _. There were no more _ for fishermen to catch.What caused the problem?People are throwing _into the river.Factories are putting _ into the river.How should the problem be solved?We should write to the _ and ask them to _

5、the factories. Everyone should help to _ the river.really dirtyrubbishfishlitterwastegovernmentclose downclean upMark: The river was dirty. Even the bottom of the river was full of rubbish.Tony: But it used to be so clean!Mark: Yes, but people are littering in the river.Tony: Everyone in this town s

6、hould play a part in cleaning it up! Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.1c1c2a2aListen to the interview. Circle the kinds of pollution that Jason andSusan talk about. A. land pollution B. air pollution C. noise pollution D. water pollution

7、1. The air is badly polluted because there are _on the road these days.2. Factories that burn coal also _ the air with a lot of black smoke.3. There is also too much rubbish and waste. People _things every day.4. People are also littering in_ like parks. This turns beautiful parks into ugly places.m

8、ore carspolluteare throwing awaypublic places2b2b Listen again and complete the sentences. 1.We are trying to save the earth.我们正在努力拯救地球。我们正在努力拯救地球。 【解析】try doing sth 尝试做某事（不一定付出很大努力） try to do sth 尽力做某事（强调付出一定的努力设 法完成） 想一想? 尽某人最大的努力做某事 try_ 2. But it used to be so clean. 但它过去是如此干净。但它过去是如此干净。 【解析】use

9、d to 的意思是 _, 其中to是不定式符号，不是 介词，所以其后要接_。 be used to 的意思是_，其中to是介词，其后要接 _ 【合作探究合作探究】ones best to do sth.习惯干某事过去常常做某事动词原形doing2. He _ go out with his parents, but now he _ staying at home alone. A. used to; is used to B. is used to; used to C. use to; is used to D. is used to; is used to Language Points

10、try to do =try ones best to do 努力去做某事努力去做某事rubbish, litter ,waste 垃圾垃圾,废物废物the bottom of the river 河底河底be full of 充满充满fisherman-fishermen 渔民渔民throw litter into the river 把垃圾扔到河里把垃圾扔到河里ask sb. to do 要求某人干某事要求某人干某事close down the factories 关闭工厂关闭工厂clean up 打扫打扫used to be过去是过去是play a part in参与，在参与，在中扮演角

11、色中扮演角色throw away 扔掉，抛弃扔掉，抛弃turninto 把把变成变成 Review present progressive(现在进现在进行时行时）, passive voice（被动语被动语态）态）,used to 用法用法Think about ways of protecting the environment.1. We should not throw_ （垃圾）（垃圾）in the river.2. The teacher asked us to find a way to pick up the coins at the _（底部）（底部）of the bottle

12、.3. There are no more fish for _ （渔夫）（渔夫）to catch in the river.【当堂检测当堂检测】litterbottomfishermanIII. 根据汉语意思完成下列句子。根据汉语意思完成下列句子。1. 工厂正在往河里排放废物。工厂正在往河里排放废物。 Factories _ _ _ in the river. 2. 两年前这条河被污染了。两年前这条河被污染了。 The river_ _ two years ago. 3. 甚至河底满是垃圾。甚至河底满是垃圾。 Even _ _ _ the river was full of rubbish. was polluted are pouring waste the bot