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1、Unit 13We are trying to save the earth. Language GoalTalk about pollution and envirnmental protectionserious pollutionWe are harming our planet in so many ways.伤害伤害air pollutionsoil pollutionwater pollutionthe earth song by Michael Jackson !Factories pour dangerous gases into the air.Cars also pour
2、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 Dad, whats the acid ra
3、inacid rain? ?Natural resources are disappearing at a dangerous rate.以危险的速度以危险的速度Group One Group TwoGroup Three desert灭绝灭绝extinctHelp save the earth We must think of better way to treat our planet in future.What do you usually do ?Are you a friend of the Earth? Take this quiz.STARTYou drink a can of
4、 cola. What do you do?I throw away cans.I recycle cans.You throw away the cans. Thats bad for the Earth.You recycle the cans.Thats good for the Earth.There are a lot of old newspapers at your home. What do you do?I throw the old newspapers away.I recycle the old newspapers.You throw old newspapers a
5、way.You waste paper.Thats bad for the Earth.You recycle old newspapers. You save paper.Thats good for the Earth.You go shopping. What do you do?I use a lot of new plastic bags.I use my own bag.You use a lot of new plastic bags. Thats bad for the Earth.You use your own bag.Thats good for the Earth.Wh
6、en you write on a piece of paper, what do you do?I write on one side only.I write on both sides.You use paper on one side only.Thats bad for the Earth.You use paper on both sides.Thats good for the Earth. close down the factories; help to clean up the river; take the bus or subway; ride a bike; brin
7、g a bag to go shopping,throw rubbish in the cans; turn off the lights when you leave a room; use paper or resusable bags; recycle books and paper; turn off the shower when you wash your hair; dont use napkins; rethink,reuse, recycle . .industryharmfulcostwoodenplasticaffort n. 工业工业adj. 有害的有害的v. 花费花费
8、adj. 木制的木制的adj. 塑料的塑料的v. 支付的起支付的起Words and expressionsmake a differencetake part inturn offpay forcut downlead to 起作用；有影响起作用；有影响参加参加关掉关掉付费；付出代价付费；付出代价减少减少导致导致Words and expressionsvWere trying to save the earth. 我们在努力拯救地球。我们在努力拯救地球。v The rive used to be so clean. 这河流过去是如此的清澈。这河流过去是如此的清澈。v The air is
9、badly polluted. 空气被严重污染。空气被严重污染。v 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。这种方法不仅残酷，而且对环境也有害。基础预习基础预习写出下面单词的意思写出下面单词的意思litter_ bottom_fisherman_ugly_cost_plastic_coal_advantage_wooden_把下面的短语与汉语意思连起来。把下面的短语与汉语意思连起来。make a diffenencecut downlead to be full o
10、f play a part in 导致导致起作用起作用减少减少参与参与充满充满 Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.1a1aloud musiccarsrubbishplaneslitteringshipsfactoriessmokingbulding housesmobile phonesnoise pullotionair pollutionwater pollutioncars, factories, sm
11、oking, 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
12、 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. ever
13、yone 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 clean!Mark: Yes, but people are littering in the river.Tony: Everyone in this town should play a part in cleaning it up! Role-p
14、lay the conversation. Then make your own conversations about the kinds of pollution in 1a.1c1c1. 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
15、 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 outHomework Write your own conversations about the kinds of pollution in 1a down on the exercise book.