人教新目标九年级英语第13单元SectionA第一课时.ppt

Unit13Wearetryingtosavetheearth.,SectionA1a-2b,LanguageGoal,Talkaboutpollutionandenvirnmentalprotection,Objectives,Totalkaboutairpollution,waterpollutionandsoundpollution.Tothinkaboutwaysofprotectingtheenvironment.Tolearnthenewwords:advantage,scientific,seriouspollution,Weareharmingourplanetinsomanyways.,伤害,airpollution,noisepollution,waterpollution,Factoriespourdangerousgasesintotheair.,Carsalsopourdangerousgasesintotheair.,tailgas,airpollution!,Theweatherisalwaysfoggy.Wecantseethebluesky.Wecantbreathethefreshair.Doyouknowwhy?,Factoriesproducetoomuchdangeroussmoke.Thetrafficproducestoomanyfumes(烟雾）.Somepeoplesmokeinpublicplaces.,Dad,whatstheacidrain?,Naturalresourcesaredisappearingatadangerousrate.,以危险的速度,GroupOne,GroupTwo,GroupThree,desert,extinct,Helpsavetheearth,Wemustthinkofbetterwaytotreatourplanetinfuture.,Whatdoyouusuallydo?AreyouafriendoftheEarth?Takethisquiz.,START,Youdrinkacanofcola.Whatdoyoudo?,Ithrowawaycans.,Irecyclecans.,Youthrowawaythecans.ThatsbadfortheEarth.,Yourecyclethecans.ThatsgoodfortheEarth.,Therearealotofoldnewspapersatyourhome.Whatdoyoudo?,Ithrowtheoldnewspapersaway.,Irecycletheoldnewspapers.,Youthrowoldnewspapersaway.Youwastepaper.ThatsbadfortheEarth.,Yourecycleoldnewspapers.Yousavepaper.ThatsgoodfortheEarth.,Yougoshopping.Whatdoyoudo?,Iusealotofnewplasticbags.,Iusemyownbag.,Youusealotofnewplasticbags.ThatsbadfortheEarth.,Youuseyourownbag.ThatsgoodfortheEarth.,Whenyouwriteonapieceofpaper,whatdoyoudo?,Iwriteononesideonly.,Iwriteonbothsides.,Youusepaperononesideonly.ThatsbadfortheEarth.,Youusepaperonbothsides.ThatsgoodfortheEarth.,closedownthefactories;helptocleanuptheriver;takethebusorsubway;rideabike;bringabagtogoshopping,throwrubbishinthecans;turnoffthelightswhenyouleavearoom;usepaperorresusablebags;recyclebooksandpaper;turnofftheshowerwhenyouwashyourhair;dontusenapkins;rethink,reuse,recycle.,solutions,基础预习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。makeadiffenencecutdownleadtobefullofplayapartin,导致起作用减少参与充满,Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.,1a,noisepullotion,airpollution,waterpollution,Listenandcompletethesentences.,1b,reallydirty,rubbish,fish,litter,waste,government,closedown,cleanup,Watchandread,Role-playtheconversation.Thenmakeyourownconversationsaboutthekindsofpollutionin1a.,1c,2a,Listentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.,A.landpollutionB.airpollutionC.noisepollutionD.waterpollution,1.Theairisbadlypollutedbecausethereare_ontheroadthesedays.2.Factoriesthatburncoalalso_theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People_thingsawayeveryday.4.Peoplearealsolitteringin_likeparks.Thisturnsbeautifulparksintouglyplaces.,morecar,pollute,arethrowingaway,publicplaces,2b,Listenagainandcompletethesentences.,Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.,2c,Interviewer:JasonandSusan,whatareyourideasforsolvingtheseproblems?Jason:Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Otheradvantagesofbikeridingarethatitsgoodforhealthanditdoesntcostanything!,2d,Role-playtheconversation.,Interviewer:Greatideas!Whataboutwastepollution?Susan:Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Jason:Me,too.Also,InevertakewoodenchopsticksorplasticforkswhenIbuytakeawayfood.Iusetheonesathome.,Susan:Andremembertothrowrubbishinthecansandkeeppublicplacescleanandbeautifulforeveryone.Interviewer:Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!,Watchandread,辨析：turn,get与become(1)become多指身份，职位等的变化，它强调变化过程已经完成，后面可以接名词或者形容词。Hebecomesateacher.(2)get多用于口语，表示一种变化过程，强调的是“渐渐变化”后常接形容词的比较级形式。,LanguagePoints,Inwinterthedaysgetshorter.冬天白天渐渐变短。(3)turn指的是在颜色和性质等方面与以前的完全不同，强调变化的结果。leavesturnedbrowninthemountains.山里的树叶已经变成了棕色。：Hermother_angrywhensheheardthenews.Its_darkeranddarkeroutside.Themilkhas_bad.,练习,became,getting,turned,cutdown,意为减少；是“动词+副词”结构的短语，后面所带的宾语为名词时，宾语可以位于down的前面或后面；为代词时只能位于down前面。Youdbettercutthearticledowntoabout2000words.cut后接off,into,up,in的不同：,拓展,辨析：spend,cost,take,pay,1.Doyoutakeexerciseeveryday?Yes,Ialways_thirtyminutesaftersupper.AspendBcostCtakeDpay2.I_300yuanforthebike.AtookBspendCcostDpaid,用方框中所给词的适当形式填空。1.Dontthrow_(垃圾)everywhere.2.Inwinter,manypeopleburn_(煤)tokeepwarm.3.Thepolicefoundabodyatthe_(底部)ofthelake.4.The_(花费)oflivinginbigcitiesisveryhigh.5.Hekeepsarabbitinabig_(木制的)box.,cost,wooden,coal,bottom,litter,1.He_gooutwithhisparents,butnowhe_stayathomealone.A.useto;isusedtoB.isusedto;usedtoC.useto;usedtoD.isusedto;isusedto2.Theinterestingbook_me10yuan.A.tookB.paidC.spendD.cost,Choosethebestanswer.,3.Wemustdosomethingusefulto_pollution.A.cutoffB.cutupC.cutdownD.cutin4.Smokingcan_lungcancer.youdbetttergiveitup.AworkonBleadtoCtakeawayDputout,5.Whatarethe_ofbikeriding?-Itcanhelpcutdownairpollution.AadvantageBreasonsCr