九年级英语unit13,Section A 2a-2d课件.ppt

Unit13,SectionA2a2d,LanguageGoal,Talkaboutpollutionandenvirnmentalprotection,Objectives,Totalkaboutairpollution,waterpollutionandsoundpollution.Tothinkaboutwaysofprotectingtheenvironment.Tolearnthenewwords:advantage,scientific,SectionA1b,Tony:Hey,Mark,maybewecouldgoswimmingintheriverlaterthisafternoon.Mark:IdontthinkIwanttogo,Tony.Tony:Whynot?Mark:Iwastherelastweekendandtheriverwasreallydirty.Eventhebottomoftheriverwasfullofrubbish,andtherewerenomorefishforfishermentocatch.Tony:Noway!Itusedtobesoclean.Infact,ithasalwaysbeenthenicestriverinthistown.,Mark:Notanymore.Ithinkpeoplearethrowinglitterintotheriver.Factoriesarealsoputtingwasteintotheriver.Tony:Thatsterrible!Weshouldwritetothegovernment.Theyshouldclosedownthefactories.Mark:Goodidea!ButIthinkeveryoneinthistownshouldhelptocleanuptheriver,too.Everyoneshouldplayapart,notjustthegovernment.,基础预习写出下面单词的意思ugly_cost_plastic_coal_advantage_wooden_takeaway_bin_,把下面的短语与汉语意思连起来。makeadifferencecutdownleadtobefullofplayapartin,导致起作用减少参与充满,2a,Listentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.,A.landpollutionB.airpollutionC.noisepollutionD.waterpollution,1.Theairisbadlypollutedbecausethereare_ontheroadthesedays.2.Factoriesthatburncoalalso_theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People_thingseveryday.4.Peoplearealsolitteringin_likeparks.Thisisturningbeautifulplacesintouglyones.,morecars,pollute,arethrowingaway,publicplaces,2b,Listenagainandcompletethesentences.,SectionA2a2b,Interviewer:TodayweretalkingtoJasonandSusanaboutenvironmentalproblems.JasonandSusan,canyoutellusaboutsomeoftheproblemsyouveseen?Jason:Ithinkoneproblemisthattheairisbadlypolluted.Ihardlyeverseeblueskiesanymore.Susan:Yes,andIusedtoseethestarsclearly.Interviewer:Whatdoyouthinkhascausedthisproblem?Susan:Well,therearemorecarsontheroadthesedays.,Jason:Andfactoriesthatburncoalalsopollutetheairwithalotofblacksmoke.Interviewer:Whatotherproblemsdoyousee?Susan:Iguesstherestoomuchrubbishandwasteinthestreets.Jason:Yes!Everydaypeoplearethrowingawaythingslikewoodenchopsticks,plasticbowlsandplasticbags.Susan:Theyrealsolitteringinpublicplaces,forexample,duringpicnicsinparks.Thisisturningbeautifulplacesintouglyones.Interviewer:Youreright.Theseareseriousproblemsforourenvironment.Next,letstalkaboutthethingswecandotohelp.,Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.,2c,2d,Read2dandcompletethechart.,takethebus,subwayorrideabikeinsteadofdriving,bringabagtogoshopping,usechopsticksorforksathome,throwrubbishinthebins,SectionA2d,Interviewer:JasonandSusan,whatareyourideasforsolvingtheseproblems?Jason:Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Thereareotheradvantagesofbikeriding.Itsgoodforhealthanditdoesntcostanything!Interviewer:Greatideas!Whataboutwastepollution?,本句中Tocutdownairpollution是动词不定式作目的状语。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：cutoff切断；切除cutinto把.切成cutup切碎cutin插队,Itsgoodforhealthanditdoesntcostanything!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.ThenewshirtcostMr.Wang200yuan.王先生花了200元买了新衬衫。Howmuchdoesthenewcomputercost?新电脑花了多少钱？,take,spend,payisusedtoB.isusedto;usedtoC.useto;usedtoD.isusedto;isusedto2.Theinterestingbook_me10yuan.A.tookB.paidC.spendD.cost,.Choosethebestanswer.,A,D,3.Wemustdosomethingusefulto_pollution.A.cutoffB.cutupC.cutdownD.cutin4.Smokingcan_lungcancer.youdbettergiveitup.AworkonBleadtoCtakeawayDputout,C,B,5.Whatarethe_ofbikeriding?-Itcanhelpcutdownairpollution.AadvantageBreasonsCresultsDideas,A,6.Doyoutakeexerciseeveryday?Yes,Ialways_thirtyminutesaftersupper.AspendBcostCtakeDpay7.I_300yuanforthebike.AtookBspendCcostDpaid,A,D,.完成句子：1.多一个人少一个人无所谓。Onepersonwouldnt_.2.这个木箱时装满了书。Th