新人教版九年级下册英语 Unit 13 Section A 1a-2d课件

1、英语教学课件系列九年级RJ全一册Unit 13Were trying to save the earth.Section A 1a-2d新课导入The earth is polluted.air pollutionn. 煤炭The factories that burn coal pollutethe air with a lot of black smoke. Factories put waste into the river.water pollutionmobile phone pollutionlitter v. 乱扔 n. 垃圾rubbish waste垃圾，废弃物People s

2、hould throw away litter in the bin.n. 垃圾箱noise pollutionThere are more cars on the road. Language GoalTalk about pollution and envirnmental protection Factories produce too much dangerous smoke. The traffic produces too many fumes. Some people smoke in public places. Dad, whats the acid rain?Natural

3、 resources are disappearing at a dangerous rate.industryharmfulcostwoodenplasticaffort n. 工业adj. 有害的v. 花费adj. 木制的adj. 塑料的v. 支付的起Words and expressionsmake a differencetake part inturn offpay forcut downlead to 起作用；有影响参加关掉付费；付出代价减少导致Words and expressionsWere trying to save the earth. 我们在努力拯救地球。 The ri

4、ve used to be so clean. 这河流过去是如此的清澈。 The air is badly polluted. 空气被严重污染。 The method is not only cruel, but also harmful to the environment. 这种方法不仅残酷，而且对环境也有害。Sentences Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.loud musiccarsrubbishp

5、laneslitteringshipsfactoriessmokingbulding housesmobile phones1anoise pullotionair pollutionwater pollutioncars, factories, smoking, building houses(burning, power plants, nuclear waste disposal)Loud music, planes, building houses, mobile phones(machines,crowds, vihicles)rubbish, littering, ships, f

6、actories(sewage, industrial waste, pesticides)Listen and complete the sentences.what was the problem?The river was _. even the bottom of the river was full of _. there were no more _ for fishmen to catch.really dirtyrubbishfish1bwhat caused the problem?people are throwing _into the river. Factories

7、are putting _ into the river.How should the problem be solved?We should write to the _ and ask them to _ the factories. everyone should help _to the river.litterwastegovernmentclose downclean upMark: The river was dirty. Even the bottom of the river was full of rubbish.Tony: But it used to be so cle

8、an!Mark: Yes, but people are littering in the river.Tony: Everyone in this town should play a part in cleaning it up! Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.1cListen to the interview. Circle the kinds of pollution that Jason andSusan talk abou

9、t. A. land pollution B. air pollution C. noise pollution D. water pollution2a1. 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 away every day.4. Peopl

10、e are also littering in_ like parks. Th is turns beautiful parks into ugly places.more carpolluteare throwing awaypublic places Listen again and complete the sentences. 2bJason: The air has become really polluted around here. Im really getting worried.Susan: Yes, I used to be able to see stars in th

11、e sky.Jason: The problem is that . Use the information in 2a and 2b to role-play conversations between Jason and Susan.2cInterviewer: Jason and Susan, what are your ideas for solving these problems?Jason: Well, to cut down air pollution, we should take the bus or subway instead of driving.Susan: Yea

12、h, or ride a bike. Other advantages of bike riding are that its good for health and it doesnt cost anything!Role-play the conversation.2dInterviewer: Great ideas! What about waste pollution?Susan: Mmm, I think simple things like 、 bringing a bag to go shopping can help. I started doing that a year a

13、go.Jason: Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home.Susan: And remember to throw rubbish in the cans and keep public places clean and beautiful for everyone.Interviewer: So together, our actions can make a difference and lead to a

14、 better future!(1) become 多指身份，职位等的变化，它强调变化过程已经完成，后面可以接名词或者形容词。 He becomes a teacher.(2) get多用于口语，表示一种变化过程，强调的是“渐渐变化”后常接形容词的比较级形式。Language Points辨析： turn, get与become In winter the days get shorter. 冬天白天渐渐变短。(3) turn 指的是在颜色和性质等方面与以前的完全不同，强调变化的结果。 leaves turned brown in the mountains. 山里的树叶已经变成了棕色。 练习

15、Her mother _ angry when she heard the news.Its _ darker and darker outside.The milk has _bad.becamegettingturned cut down, 意为减少； 是“动词+副词”结构的短语，后面所带的宾语为名词时，宾语可以位于down的前面或后面；为代词时只能位于down前面。 Youd better cut the article down to about 2000 words. cut 后接off, into,up, in 的不同：拓展cut off切断；切除cut into把.切成.cut

16、up切碎cut in 插队花费主语表示内容spend人宾语可以是钱，精力，时间等。cost物或事后接life，money，health，time等，侧重与花费的代价take事或人说明事情完成花费了.pay人支付 作为及物动词，可以是 pay sb 或pay some money；作为不及物动词，形式为pay for。for表支付的原因。辨析：spend, cost, take, pay1. Do you take exercise everyday? Yes, I always _ thirty minutes after supper. A spend B cost C take D pay

17、2. I _ 300 yuan for the bike. A took B spend C cost D paid用方框中所给词的适当形式填空。1. Dont throw _(垃圾) everywhere.2. In winter, many people burn _(煤) to keep warm.3. The police found a body at the _(底部) of the lake.4. The _(花费) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的) box.cost

18、 wooden, coal , bottom, littercost woodencoalbottomlitter1. He _ go out with his parents, but nowhe _ stay at home alone. A. use to; is used to B. is used to; used to C.use to; used to D. is used to; is used to2. The interesting book _ me 10 yuan. A. took B. paid C. spend D. costChoose the best answer.3. We must do something useful to _ pollution. A. cut off B. cut up C. cut down D. cut in4. Smoking can _ lung cancer. youd bettter give it up. Awork on Blead to Ctake away Dput out5. What are the _ of bike riding? - It can help cut down air pollution. Aadvantage Breasons Cresults Dideas1. 多一个人