九年级下册英语第13单元Section A-1.ppt

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Unit13We’retryingtosavetheearth.SectionA1a-2d 学习目标Keywords&phrases:litter，bottom，fisherman，coal，ugly，advantage，cost，wooden，plastic，makeadifferenceKeysentences:1.Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.2.Itusedtobesoclean.3.Peoplearethrowinglitterintotheriver. ReadandlearnWordsandexpressions 新课导入 Theearthispolluted. airpollutionThefactoriesthatburncoalpollutetheairwithalotofblacksmoke.n.煤炭 Factoriesputwasteintotheriver.waterpollution mobilephonepollution litterv.乱扔n.垃圾rubbishwaste垃圾，废弃物Peopleshouldthrowawaylitterinthebin.n.垃圾箱 noisepollutionTherearemorecarsontheroad. 课文展现 1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords. noisepollution________________________________________________airpollution____________________________________________waterpollution________________________________________________loudmusicplanesmobilephonesfactoriescarssmokingshipsfactorieslitteringrubbishbuildinghousesbuildinghousesloudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephones 1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof_________.Therewerenomore______forfishermen(渔民)tocatch.reallydirtyrubbishfish Whatcausedtheproblem?Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.litterwastegovernmentclosedowncleanup 1cRole-playtheconversationTheriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Butitusedtobesoclean! Yes,butpeoplearethrowinglitterintotheriver.Everyoneinthistownshouldplayapartincleaningitup! PracticeMakeconversationsusingthepollutionin1a.Theriverhasalwaysbeenthenicestriverinthistown.Yes,itusedtobesoclean. Whatcausedtheproblem?ButIwastherelastweekendandtheriverwasreallydirty. Factoriesarealsoputtingwasteintotheriver.Peoplearethrowinglitterintotheriver.Whatshouldwedo?Yes,everyoneinthistownshouldplayapart. Weshouldwritetothegovernmentandaskthemtoclosedownthefactories.Whatelsecanwedo?Everyoneshouldhelptocleanuptheriver. Languagepoints 1.We’retryingtosavetheearth!我们正在竭尽全力拯救地球!trytodo=tryone’sbesttodo努力去做某事。e.g.Everystudentshouldtrytostudyhardinordertostudyinauniversity.为了进入大学学习，每个学生都应该努力学习。 2.Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto与…有关e.g. Iamnotrelated tohiminanyway.我和他无任何关系。 3.Everyoneinthistownshouldplayapartincleaningitup!playapartin在……方面起作用e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.健康的饮食在帮助人们长寿方面起着非常大的作用。playapart在……中扮演角色e.g.HewasinvitedtoplayapartinthisTVplay.他被邀请参加这个电视剧的演出。 4.Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和rubbish都可指“垃圾”，用作不可数名词。rubbish指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。 litter指“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收。e.g.Throwtherubbishout.把垃圾扔出去。Theroomisfullofrubbish.房间里堆满了垃圾。Pickupyourlitterafterapicnic.野餐后将废弃物收拾好。 2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.landpollutionB.airpollutionC.noisepollutionD.waterpollution 2bListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare___________ontheroadthesedays.2.Factoriesthatburncoalalso________theairwithalotofblacksmoke.morecarspollute 3.Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.4.Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly(丑陋)ones.arethrowingawaypublicplaces Role-playconversationsbetweenJasonandSusan.2cTheairhasbecomereallypollutedaroundhere.I’mgettingveryworried.Yes,Iusedtobeabletoseestarsinthesky.Theproblemisthat… Whatshouldwedotosavetheearth? Turnoffthelightswhenyouleavearoom.关掉 stopridingincars stopusingpapertowelsornapkins（餐巾，餐巾纸） recyclebooksandpaper回收利用 2dRead2dandcompletethechart.ProblemsSolvingproblemsairpollutionwastepollutionwooden(木头的)chopsticksorplasticforksrubbishtakethebus,subwayorrideabikeinsteadofdriving.bringabagtogoshopping.usechopsticksorforksathome.throwrubbishinthebins. Role-playtheconversationJasonandSusan,whatareyourideasforsolvingtheseproblems? Languagepoints Thisisturningbeautifulplacesintouglyones.turn…into…把……变成……e.g.Theicyrainseemedliketoturnintosnow.渐渐地冻雨又变成雪花的模样。 2.It’sgoodforhealthanditdoesn’tcostanything!costv.花费；使付出指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。e.g.ThenewshirtcostMrWang200yuan.王先生花了200元买了新衬衫。Howmuchdoesthenewcomputercost?新电脑花了多少钱？ take,spend,pay&costtake，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。1)take多表示花费时间，常用于Ittakessb.sometimetodosth.这一句型中，其中it作形式主语。e.g.Itusuallytakesme40minutestocookthedinner. 2)spend多表示花费时间和金钱，主语通常是人，常用于sb.spend(s)sometime/moneyonsth.和sb.spend(s)sometime/money(in)doingsth.两种句型。e.g.Davidspent2,000yuanonthenewmachine.Myfatherspendsanhour(in)watchingthenewsonTVeveryday. 3)pay多表示花费金钱，主语通常是人，常用于sb.pay(s)somemoneyforsth.句型。e.g.Tommypaid20yuanforhisbreakfastyesterday.4)cost多表示花费金钱，主语通常是物，常用于sth.cost(s)(sb.)somemoney.句型。e.g.ThenewdresscostLinda88yuan. 根据句意用take,spend,pay或cost的适当形式填空。1.Thatnewcar________ themlotsofmoney.2.Mona__________50yuanonthebooksjustnow.3.Itusually_______ meanhourtodomyhomework.costspenttakes 4.Youshould__________ sometimepractisingyourpronunciation.5.Mybrother_______ 6,000yuanforthenewcomputeryesterday.spendpaid 3.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!makeadifference(to…)示(对……)产生影响或作用e.g.Doyouthinkhiswordswouldmakeanydifferencetothefinaldecision?你认为他的话会对最后的决定产生影响吗？ThenewteacheralwaysencourageslittleTom.Thishasmadeabigdifferencetohim.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。1.We’retrying_______(save)theearth.2.Thereusedto_____(be)cleanandbeautiful.3.Therearetoomany____for__________tocatch(fish).4.It’sbadforenvironmenttouse_________(wood)chopsticks.tosavebefishwoodenfishermen 口头作业(Oralwork)熟读课文Unit13SectionA2d书面作业(Writingwork)学练优Unit13SectionA第一课时Homework Makeaposter!Theearthisbadlypolluted.Pleasemakeaposterandthinkofwhatwecando.Savetheearth! Thankyou,everyone!Bye-Bye