1、SectionA 1a-2dThe earth is polluted.Factories put waste into the river.water pollutionAir pollution.The sky is grey and people are usually wearing masks when they are in the open air.Look and saylitter 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 pol
2、lutionThere 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.（与（与 联系）联系）noise pollution _air pollution _water pollution _loud musicplanesmobile phonesfactoriescarssmokingshipsfactorieslitteringrubbishbuilding hous
3、esbuilding housesloud 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 dirtyrubbishfi
4、shWhat 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 upListen again and answer the follo
5、wing questions.1.What does Tony want to do later this afternoon?2.Why doesnt Mark want to go with Tony?3.How was the river in the past?He wants to go swimming with Mark in the river later this afternoon.Because the river was really dirty.It used to be so clean.1cThe river was dirty.Even the bottom o
6、f the river was full of rubbish.But it used to be so clean!Yes,but people are throwing litter into the river.Everyone in this town should play a part in cleaning it up!Make conversations using the words in 1a.The river has always been the nicest river in this town.Yes,it used to be so clean.What cau
7、sed the problem?But I was there last weekend and the river was really dirty.Factories are also putting waste into the river.People are throwing litter into the river.What should we do?We should write to the government and ask them to close down the factories.What else can we do?Everyone should help
8、to clean up the river.1.Were trying 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.Well try to finish the work in a week.我们将努力在一周内完成这项我们将努力在一周内完成这项 工作。工作。2.Here are some words related to different kinds of pollution.be related to 与与有关有关 e.g.Is the driver re
9、lated to the accident?司机和这起事故有关吗？司机和这起事故有关吗？3.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所)乱扔的废物乱扔的废物(纸屑、不要的包装纸、废瓶等纸屑
10、、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。air pollutionThe factories that burn coal pollutethe air with a lot of black smoke.n.煤炭煤炭2aListen to the interview.Circle the kinds of
11、 pollution that Jason and Susan talk about.A.land pollution 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 cars
12、pollute3.There is also too much rubbish and waste.People _ things every day.4.People are also littering in _ like parks.This is turning beautiful places into ugly(丑丑陋陋)ones.are throwing awaypublic placesUse the information in 2a and 2b to role-play conversations between Jason and Susan.2cThe air has
13、 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?2dRead 2d and complete the chart.PollutionWays to solve the problemair pollutionwaste pollutiontake the bus,subway or ride a bike instead
14、of drivingbring a bag to go shoppingnever take wooden(木头的木头的)chopsticks or plastic forks when buying takeaway foodthrow rubbish in the binsJason 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 does
15、nt cost(花费花费)anything!Well,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(外卖食物外卖食物)food.I use the ones at home.Mmm,I think simple things like bri
16、nging a bag to go 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!Read the dialogue in 2d,then tell us what we can do to reduc
17、e the pollution.1.We should take _ or _ instead of driving.2.We should also _ _ _.Its good for health!3.Bring _ to go shopping.4.Never take _ or _ when buying takeaway food.5._ in the bins and keep public places clean and beautiful.the bussubwayridea bikea bagwooden chopsticksplastic forksThrow rubb
18、ish1.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的过去的过去式和过去分词均为式和过去分词均为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 computer 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
19、“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，常用于多表示花费时间，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，常用于常是人，常用于sb.spend(s)some time/money on sth.和和sb.spend(s)some time/money(in)doing sth.两
20、种句型。两种句型。e.g.David spent 2,000 yuan on the new machine.My father spends an hour(in)reading the newspaper 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.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.)s
21、ome money.句句型。型。e.g.The new dress cost Linda 80 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 usually _ me an hour to do my homework.cost spent takes4.You should _ some time practising your pronunciation.5.My brothe
22、r _ 3,000 yuan for the new computer yesterday.spendpaid2.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.g.Learning English well can make a difference to your future.学好英语会对你的前途有影响。学好英语会对你的前途有影响。The earth is badly polluted.Please
23、 make a poster and think of what we can do according to the knowledge we have learned today.They should close down the factories that put waste into the river.Set up a lot of dustbins on the street.Organize people to clean up the streets and rivers.Stop people from using wooden chopsticks,plastic bo
24、wls and bags1.save the earth2.noise pollution3.cut down pollution4.throw litter into the river5 at the top of the chain6.close down the factory7.at the bottom of the river8.play a part in doing sth 拯救地球噪音污染减少污染扔垃圾到河中在食物链顶端关闭工厂在河的底部参与做在起作用 12.chopsticks plastic forks13.takeaway food14.throw rubbish in the bins 15.keep public places clean16.lead to 17 simple things like going shopping像购物这样容易像购物这样容易的的事事10 advantages of bike riding 11.disadvantages of bike ridingwooden
