Unit 13We are trying to save the earth. Language GoalTalk about pollution and envirnmental protectionTo talk about air pollution, water pollution and sound pollution.To think about ways of protecting the environment.To learn the new words: advantage, scientificserious pollutionWe are harming our planet in so many ways.傷害傷害air pollutionsoil pollutionwater pollutionthe earth song by Michael Jackson !Factories pour dangerous gases into the air.Cars also pour dangerous gases into the air.air pollution!The weather is always foggy. We cant see the blue sky. We cant breathe the fresh air. Do you know why? Factories produce too much dangerous smoke. The traffic produces too many fumes. Some people smoke in public places. Dad, whats the acid rain?Natural resources are disappearing at a dangerous rate.以危險的速度以危險的速度Help save the earth We must think of better way to treat our planet in future.Mark: 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 should play a part in cleaning it up! Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.1c1c辨析：辨析： turn, get與與become(1) become 多指身份，職位等的變化，多指身份，職位等的變化，它強調變化過程已經(jīng)完成，后面可以接名詞它強調變化過程已經(jīng)完成，后面可以接名詞或者形容詞?；蛘咝稳菰~。 He becomes a teacher.(2) get多用于口語，表示一種變化過程，多用于口語，表示一種變化過程，強調的是強調的是“漸漸變化漸漸變化”后常接形容詞的比較級形式。后常接形容詞的比較級形式。Language Pointsnoise 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, factories(sewage, industrial waste, pesticides)Listen and complete the sentences.1b1bwhat was the problem?The river was _. even the bottom of the river was full of _. there were no more _ for fishmen to catch.really dirtyrubbishfishwhat 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 _ the factories. everyone should help _to the river.litterwastegovernmentclose downclean up2a2a Listen to the interview. Circle the kinds of pollution that Jason andSusan talk about. A. land pollution B. air pollution C. noise pollution D. water pollution1. 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. People are also littering in_ like parks. Th is turns beautiful parks into ugly places.more carpolluteare throwing awaypublic places2b2b Listen again and complete the sentences. In winter the days get shorter. 冬天白天漸漸變短。冬天白天漸漸變短。(3) turn 指的是在顏色和性質等方面與以前指的是在顏色和性質等方面與以前的完全不同，強調變化的結果。的完全不同，強調變化的結果。 leaves turned brown in the mountains. 山里的樹葉已經(jīng)變成了棕色。山里的樹葉已經(jīng)變成了棕色。 ：uHer mother _ angry when she heard the news.uIts _ darker and darker outside.uThe milk has _bad.becamegettingturned cut down, 意為意為減少減少； 是是“動詞動詞+副詞副詞”結結構的短語，后面所帶的賓語為名詞時，賓語構的短語，后面所帶的賓語為名詞時，賓語可以位于可以位于down的前面或后面；為代詞時只的前面或后面；為代詞時只能位于能位于down前面。前面。 Youd better cut the article down to about 2000 words. cut 后接后接off, into,up, in 的不同：的不同：cut off切斷；切除切斷；切除cut into把把.切成切成.cut up切碎切碎cut in 插隊插隊花費花費主語主語表示內容表示內容spend人人賓語可以是錢，精賓語可以是錢，精力，時間等。力，時間等。cost物或事物或事后接后接life，money，health，time等，等，側重與花費的代價側重與花費的代價take事或人事或人說明事情完成花費說明事情完成花費了了.辨析：辨析：spend, cost, take, pay花費花費主語主語表示內容表示內容pay人人支付支付 作為及物動作為及物動詞，可以是詞，可以是 pay sb 或或pay some money；作為不及物動詞，作為不及物動詞，形式為形式為pay for。for表支付的原因。表支付的原因。1. Do you take exercise everyday? Yes, I always _ thirty minutes after supper. A spend B cost C take D pay2. I _ 300 yuan for the bike. A took B spend C cost D paid用方框中所給詞的適當形式填空。用方框中所給詞的適當形式填空。1. Dont throw _(垃圾垃圾) everywhere.2. In winter, many people burn _(煤煤) to keep warm.3. The police found a body at the _(底部底部) of the lake.4. The _(花費花費) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的木制的) box.cost 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. 多一個人少一個人無所謂。多一個人少一個人無所謂。 One person wouldnt _ _ _. 2. 這個木箱時裝滿了書。這個木箱時裝滿了書。The _ box _ _ _ books. 3. 不健康的飲食對這種疾病的傳播起一定的作用。不健康的飲食對這種疾病的傳播起一定的作用。 Unhealthy foods _ _ _ _ the spread of the disease. 4. 這條小路通向公園。這條小路通向公園。 The path _ _ the park. 5. 我錯拿了你的包。我錯拿了你的包。 I took your bag _ _ mine by mistake. wooden is full ofmake a differencelead to paly a part of instead of