1、学练优九年级英语下（学练优九年级英语下（RJRJ）教学课件教学课件Section A(1a-2d)Unit 13 Were trying to save the earth!学习目标学习目标 Key words&phrases:litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic,make a difference Key sentences:1.The river was dirty.Even the bottom of the river was full of rubbish.2.But it used to be
2、 so clean!3.Yes,but people are throwing litter into the river.Read and learnWords and expressionsLead inThe earth is polluted.air pollutionThe factories that burn coal pollute the air with a lot of black smoke.water pollutionFactories put waste into the river.litter v.乱扔乱扔 n.垃圾垃圾rubbish waste 垃圾垃圾 废
3、弃物废弃物mobile phone pollutionnoise pollutionThere are more cars on the road.Presentation1aHere are some words related to different kinds of pollution.Write them in the box below.Then add more words.loud music cars rubbish planes littering ships factories smoking building houses mobile phonesnoise poll
4、ution _air pollution _water pollution _loud musicplanesmobile phonesfactoriescarssmokingshipsfactorieslitteringrubbishbuilding housesbuilding houses1bListen and complete the sentences.What was the problem?The river was _.Even the bottom(底部)of the river was full of _.There were no more _ for fisherme
5、n(渔民)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
6、up1cThe river was dirty.Even the bottom of the river was full of rubbish.But it used to be so clean!Role-play the conversation.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 pollution in 1a.Language points1.We
7、re 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 sth.=try ones best to do sth.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 good university.为了进入一所好大学学习，每个学生为了进入一所好大学学习，每个学生 都应该努力学习。都应该努力学习。2.Here are some words related to different kinds of pollution.b
8、e related to 与与有关有关 e.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
9、角色 e.g.He was 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”，用作不可，用作不可数名词数名词。rubbish指指“没用的东西没用的东西(被扔或将要丢弃的被扔或将要丢弃的无用的东西无用的东西)”不可回收不可回收。litter指指“(室内或公
10、共场所室内或公共场所)乱扔的废物乱扔的废物(纸屑、纸屑、不要的包装纸、废瓶等不要的包装纸、废瓶等)”还可回收。还可回收。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 po
11、llution 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 waste.Pe
12、ople _ things every day.4.People are also littering in _ like parks.This is turning beautiful places into ugly(丑陋的丑陋的)ones.are throwing awaypublic placesUse the information in 2a and 2b to role-play conversations between Jason and Susan.2cThe air has become really polluted around here.Im getting ver
13、y 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?1.Turn off the lights when you leave a room.关掉关掉2.stop riding in cars3.stop using paper towels or napkins（餐巾，（餐巾，餐巾纸）餐巾纸）4.recycle books and paper回收利用回收利用5.2dRead 2d and complete the chart
14、.ProblemsSolving problemsair pollutionwaste pollutionrubbishtake the bus,subway or ride a bike instead of drivingbring a bag to go shopping,never take wooden chopsticks or plastic forks but use the ones at home while buying takeway foodthrow rubbish in the binsJason and Susan,what are your ideas for
15、 solving these problems?Language points1.This is turning beautiful places into ugly ones.turn into 把把变成变成e.g.The icy rain seemed like to turn into snow.冻雨似乎又变成雪花的模样。冻雨似乎又变成雪花的模样。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的过去式的过去式和过去分词均为和过去分词均为
16、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“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，其中这一句型中，其中it作形式主语作形式主语。e.g.It
17、 usually takes me 40 minutes to cook the dinner.2)spend多表示花费时间和金钱，主语通常是多表示花费时间和金钱，主语通常是人人，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
18、费金钱，主语通常是人多表示花费金钱，主语通常是人，常用，常用于于sb.pay(s)some money for sth.句型。句型。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，常用于于sth.cost(s)(sb.)some money句型。句型。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
19、 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 practicing 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 f
20、uture!make a difference(to)(对对)产生影响或作用产生影响或作用 e.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响吗？你认为他的话会对最后的决定产生影响吗？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。这对他影响很大。新来的老师总是鼓励小汤姆。这对他影响很大。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.There are too many _ for _ to catch(fish).3.Its bad for the environment to use _(wood)chopsticks.to savefishwoodenfishermen口头作业 (Oral work)熟读课文Unit 13 Section A(2d)书面作业(Writing work)学练优 Unit 13 Section A 第一课时
