人教版九年级英语第13单元完整ppt课件

精选,Unit13Weretryingtosavetheearth!,SectionA1a-2d（第1课时）,精选,1.Weshouldputupnoticetostopfrom_（乱扔）.2.Theteacheraskedustofindawaytopickupthecoinsatthe_（底部）ofthebottle.3.Therearenomorefishfor_（渔夫）tocatchintheriver.4.Weshouldtakethepaperbagstogoshoppinginsteadofthe_（塑料）ones.5.Couldyoupleasetellusanother_（优点）ofridingbiketowork?,【检查预习】,litter,bottom,fisherman,plastic,advantage,精选,noisepollution,airpollution,waterpollution,1a.Writethewordsrelatedtodifferentkindsofpollutionintheboxbelow.,(Pairworkorgroupwork),loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephones,_,_,_,loudmusic,cars,rubbish,planes,littering,ships,factories,smoking,buildinghouses,mobilephones,精选,1b.Listenandcompletethesentences,reallydirty,rubbish,fish,litter,waste,government,closedown,cleanup,精选,精选,1.Theairisbadlypollutedbecausethereare_ontheroadthesedays.2.Factoriesthatburncoalalso_theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People_thingseveryday.4.Peoplearealsolitterin_likeparks.Thisisturningbeautifulplacesintouglyplaces.,2aListentotheinterview.thekindsofpollutionthatJasonandSusantalkabout.,A.wastepollutionB.airpollutionC.noisepollutionD.waterpollution,Circle,2b.Listenagainandcompletethesentences.,littering,morecars,pollute,arethrowingaway,精选,精选,Readtheconversationquickly,findouttheanswertothequestion.,Whatkindsofpollutionarementionedinthisconversation?,2d.,Airpollutionandwastepollution.,2.Readtheconversationagainandcompletetheblanks.,Takethebusorsubwayinsteadofdriving;rideabike.,bringabagtogoshopping;onlyusewoodenchopsticksorplasticforksathome;Throwrubbishinthebins,精选,精选,1.Wearetryingtosavetheearth.我们正在努力拯救地球。【解析】trydoingsth尝试做某事（不一定付出很大努力）trytodosth尽力做某事（强调付出一定的努力设法完成）想一想?尽某人最大的努力做某事try_2.Butitusedtobesoclean.但它过去是如此干净。【解析】usedto的意思是_,其中to是不定式符号，不是介词，所以其后要接_。beusedto的意思是_，其中to是介词，其后要接_,【合作探究】,onesbesttodosth.,习惯干某事,过去常常做某事,动词原形,doing,2.He_gooutwithhisparents,butnowhe_stayingathomealone.A.usedto;isusedtoB.isusedto;usedtoC.useto;isusedtoD.isusedto;isusedto,精选,HowmuchisthetickettoCentralPark?Aone-wayticket_$40,andyoucan_another$20foraround-trip.A.costs,payB.cost,spendC.pay,spendD.spends,pay,【合作探究】,3.Itsgoodforhealthanditdoesntcostanything!它对身体有好处并且不会花费任何东西。costvt.1.花费；价格为；【拓展】take/spend/cost/pay的用法都可以表示“花费”，但用法却不尽相同。spend的主语必须是_，常用于_cost的主语是物或某种活动，还可以表示“值”，用于_（注意：cost的过去式及过去分词都是cost,并且不能用于被动句。）take后面常跟双宾语，常见于_pay的基本用法是：_,人,Sb.spendtime/moneyonsth.,Sb.spendtime/moneydoingsth.,costsb.money.,Ittakessb.sometimetodosth.,paymoneyforsth.,精选,4.Tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。本句中Tocutdownairpollution是动词不定式作目的状语。cutdown意为_,减少,Wemustdosomethingusefulto_pollution.A.cutoffB.cutupC.cutdownD.cutin,精选,I.单项选择。1.Eatingtoomuchsugarcan_healthyproblems.A.gettoB.leadtoC.pointtoD.ableto2.-Whatarethe_ofbikeriding?-Itsgoodforourhealth.A.advantagesB.reasonsC.resultsD.ideasII.用所给词的适当形式填空。1.Therearemanykindsof_（pollute）inourdailylife.2.Allofthestudentsshouldtakepartin_(keep)ourschoolcleanandtidy.3.Canyoutellusyourideasfor_(improve)yourspokenEnglish.4.Weshouldstopusingthe_(wood)chopstickstoprotecttheforest.5.Theirgrandparentswere_(fisherman)neartheseabeforetheymovedtothetown.,当堂检测,B.,A.,pollution,keeping,improving,wooden,fishermaners,精选,III.根据汉语意思完成下列句子。1.咱们玩纸牌吧，别看电视了。Letsplaycards_watchingTV.2.我们的行动会起作用，并且通向更好的未来。Ouractionscan_adifferenceandl