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1、The earth is polluted.air pollutionThe factories that burn coal pollutethe air with a lot of black smoke. n. 煤炭煤炭Factories put waste into the river.water pollutionmobile phone pollutionlitter 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noise pollutionT
2、here are more cars on the road.1aHere are some words related to different kinds of pollution. Write them in the box below. Then add more words.noise pollution _air pollution _water pollution _loud musicplanesmobile phonesfactoriescarssmokingshipsfactorieslitteringrubbishbuilding housesbuilding house
3、sloud music cars rubbish planeslittering ships factories smokingbuilding houses mobile phones1bListen and complete the sentences.What was the problem?The river was _. Even the bottom (底部底部) of the river was full of _. There were no more _ for fishermen (渔民渔民) to catch.really dirtyrubbishfishWhat cau
4、sed 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 upListen again and check () the sentences y
5、ou hear.1. We could go fishing in the river.2. The river was really dirty.3. The river has always been the nicest river in this town.4. We should ask the teachers for help.1cThe river was dirty. Even the bottom of the river was full of rubbish.But it used to be so clean!Yes, but people are throwing
6、litter into the river.Everyone in this town should play a part in cleaning it up!Make conversations using the pollution in 1a.The river has always been the nicest river in this town.Yes, it used to be so clean.What caused the problem?But I was there last weekend and the river was really dirty.Factor
7、ies are also putting waste into the river.People are throwing litter into the river.What should we do?Yes, everyone in this town should play a part.We should write to the government and ask them to close down the factories.What else can we do?Everyone should help to clean up the river.1. Were trying
8、 to save the earth! 我们正在竭尽全力拯救地球我们正在竭尽全力拯救地球! try to do =try ones best to do 努力去做某事。努力去做某事。 e.g. Every student should try to study hard in order to study in a university. 为了进入大学学习，每个学生都应该为了进入大学学习，每个学生都应该 努力学习。努力学习。2. Here are some words related to different kinds of pollution. be related to 与与有关有关 e
9、.g. I am not related to him in any way. 我和他无任何关系。我和他无任何关系。 3. Everyone in this town should play a part in cleaning it up! play a part in 在在方面起作用方面起作用 e.g. A good diet plays a large part in helping people live longer. 健康的饮食在帮助人们长寿方面起着健康的饮食在帮助人们长寿方面起着 非常大的作用。非常大的作用。play a part 在在中扮演角色中扮演角色 e.g. He was
10、 invited to play a part in this TV play. 他被邀请参加这个电视剧的演出。他被邀请参加这个电视剧的演出。4. Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river.litter和和rubbish都可指都可指“垃圾垃圾”，用作，用作不可数名词不可数名词。rubbish指指“没用的东西没用的东西(被扔或将要丢被扔或将要丢弃的无用的东西弃的无用的东西)”不可回收不可回收。litter指指“(室内或公共场所室内或公共场
11、所)乱扔的废物乱扔的废物(纸屑、不要的包装纸、废瓶等纸屑、不要的包装纸、废瓶等)”还可还可回收。回收。e.g. Throw the rubbish out. 把垃圾扔出去。把垃圾扔出去。The room is full of rubbish. 房间里堆满了垃圾。房间里堆满了垃圾。Pick up your litter after a picnic. 野餐后将废弃物收拾好。野餐后将废弃物收拾好。 2aListen to the interview. Circle the kinds of pollution that Jason and Susan talk about.A. land poll
12、ution B. air pollutionC. noise pollution D. water pollution2bListen again and complete the sentences.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.more carspollute3. There is also too much rubbish and wast
13、e. People _ things every day.4. People are also littering in _ like parks. This is turning beautiful places into ugly (丑陋丑陋) ones. are throwing awaypublic places1. Who is the interviewer talking to?2. What are they talking about?3. What other problems do they see?Susan and Jason.The environmental pr
14、oblems.Theres too much rubbish and waste in the streets.Role-play conversations between Jason and Susan.2cThe air has become really polluted around here. Im getting very worried.Yes, I used to be able to see stars in the sky.The problem is that What should we do to save the earth?Turn off the lights
15、 when you leave a room.关掉关掉stop riding in carsstop using paper towels or napkins（餐巾，餐巾纸）（餐巾，餐巾纸）recycle books and paper回收利用回收利用2dRead 2d and complete the chart.ProblemsSolving problemsair pollutionwaste pollutionwooden (木头木头的的) chopsticks or plastic forksrubbishtake the bus, subway or ride a bike in
16、stead of driving. bring a bag to go shopping.use chopsticks or forks at home.throw rubbish in the bins.Jason and Susan, what are your ideas for solving these problems?Yeah, or ride a bike. There are other advantages (优点优点) of bike riding. Its good for health and it doesnt cost (花费花费) anything!Well,
17、to cut down air pollution, we should take the bus or subway instead of driving.Great ideas! What about waste pollution?Me, too. Also, I never take wooden chopsticks or plastic (塑料塑料) forks when I buy takeaway (外卖食品外卖食品) food. I use the ones at home.Mmm, I think simple things like bringing a bag to g
18、o shopping can help. I started doing that a year ago.And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.So together, our actions can make a difference and lead to a better future!1. This is turning beautiful places into ugly ones. turn into 把把变成变成e.g. T
19、he icy rain seemed like to turn into snow. 渐渐地冻雨又变成雪花的模样。渐渐地冻雨又变成雪花的模样。 2. Its good for health and it doesnt cost anything! cost v. 花费；使付出花费；使付出 指花费金钱，主语通常是物。指花费金钱，主语通常是物。cost的过的过去式和过去分词均为去式和过去分词均为cost。 e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了王先生花了200元买了新衬衫。元买了新衬衫。 How much does the new compu
20、ter cost? 新电脑花了多少钱？新电脑花了多少钱？take, spend, pay & costtake，spend，pay和和cost都可以表示都可以表示“花花费费”，但它们的用法各有不同。，但它们的用法各有不同。1) take多表示花费时间多表示花费时间，常用于，常用于It takes sb. some time to do sth.这一句型中，这一句型中，其中其中it作形式主语作形式主语。 e.g. It usually takes me 40 minutes to cook the dinner.2) spend多表示花费时间和金钱，主语通多表示花费时间和金钱，主语通常是人常是人
21、，常用于，常用于sb. spend(s) some time / money on sth.和和sb. spend(s) some time / money (in) doing sth.两种句型。两种句型。 e.g. David spent 2,000 yuan on the new machine. My father spends an hour (in) watching the news on TV every day.3) pay多表示花费金钱，主语通常是人多表示花费金钱，主语通常是人，常用于常用于sb. pay(s) some money for sth.句句型。型。 e.g.
22、Tommy paid 20 yuan for his breakfast yesterday.4) cost多表示花费金钱，主语通常是物多表示花费金钱，主语通常是物，常用于常用于sth. cost(s) (sb.) some money.句句型。型。 e.g. The new dress cost Linda 88 yuan.根据句意用根据句意用take, spend, pay或或cost的适当的适当形式填空。形式填空。1. That new car _ them lots of money.2. Mona _ 50 yuan on the books just now.3. It usual
23、ly _ me an hour to do my homework.cost spent takes4. You should _ some time practising your pronunciation.5. My brother _ 6, 000 yuan for the new computer yesterday.spendpaid3. So together, our actions can make a difference and lead to a better future! make a difference (to) 表示表示(对对)产生影响或作用产生影响或作用 e
24、.g. Do you think his words would make any difference to the final decision? 你认为他的话会对最后的决定产生影你认为他的话会对最后的决定产生影 响吗？响吗？ The new teacher always encourages little Tom. This has made a big difference to him.新来的老师总是鼓励小汤姆，这对他影新来的老师总是鼓励小汤姆，这对他影响很大。响很大。用动词的适当形式填空。用动词的适当形式填空。1. Were trying _ (save) the earth.2.
25、 There used to _ (be) clean and beautiful.3. There are too many _ for _ to catch (fish).4. Its bad for environment to use _ (wood) chopsticks.to savebefishwoodenfishermenThe earth is badly polluted. Please make a poster and think of what we can do.1. Copy the new words and remember them. 2. Read the listening materials of 1b, 2a.