九年级英语上册Unit2SavingtheEarthTopic1PollutionhascausestoomanyproblemsSectionA仁爱版.ppt

Unit2SavingtheEarthTopic1Pollutionhascausedtoomanyproblems.SectionA,Learningaims,1.掌握本课的重点短语和句型。2.巩固一般过去时和现在完成时的用法区别。3.复习系动词的用法。4.正确使用therebesth./sb.doingsth.来表达“有某人/物正在做某事”。5.了解环境污染的严重性，并树立环保意识。,自主预习英汉互译1.西山_2.haveapinic_3.两年前_4.lotsof_5.seesb./sth.doingsth._6.一些化工厂_7.pourinto_8.废水_9.cutdown_10.Therebesb./sth.doingsth._11.Whatamess!_12.多可惜啊！_13.Soundsgreat._14.气味真难闻。_15.Theflowersandgrasshavegone._16.一切都变了。_,自主预习英汉互译1.theWestHill西山2.haveapinic去野餐3.twoyearsago两年前4.lotsof许多5.seesb./sth.doingsth.看见某人/某物正在做某事6.severalchemicalfactories一些化工厂7.pourinto把倒入8.wastewater废水9.cutdown砍倒10.Therebesb./sth.doingsth.有某人/某物正在做某事11.Whatamess!多么脏乱啊！12.Whatashame!多可惜啊！13.Soundsgreat.听起来真棒！14.Itsmellsterrible.气味真难闻。15.Theflowersandgrasshavegone.花和草都消失了。16.Everythinghaschanged.一切都变了。,Haveyoueverhadapicnic?,Kangkang,Jane,MariaandMichaelareplanningapicnicforSunday.TheywillgototheWestHill.,Whatcanyouseethere?,Wecanseebeesandbutterfliesdancing.,bee,butterfly,IstheWestHillbeautiful?,Guess,aplacewith,beautifulflowers,Brainstorm,manyhills,greentrees,Whatashame/mess!Theflowersandgrasshavegone!,butterflies,cleanwater,bees,somefish,arabbit,Theflowersandgrasshavegone!,Oh,mygoodness.Whatamess!,Look!Thereareseveralchemicalfactoriespouringwastewaterintothestream.,=havedisappeared.,Isitbeautifulnow?Whathashappenedthere?,P271amp3,wastewaterwastepaperWastewater.浪费水。Dontwastepaper.不要浪费纸。,waste,adj.v.,Thereareseveralchemicalfactoriespouringwastewaterintothestream.有几家化工厂正在往小溪里排放废水。,Therebedoingsth有在做某事,e.g.Therearesomepeoplewaitingforthebusatthebusstop.,倒出；倾泻pourinto把倒入e.g.Pourredwineintotheglass.,1bListento1aandmarkthewordswithP(Past)orN(Now)._beautiful_butterflies_dirty_grass_terrible_factory_bees_fresh_clean_wastewater,P,P,N,P,N,N,P,P,P,N,1cRead1aandpletethesentencesinthetable.Thenretell1atoyourpartner.,beautifulplace,lotsofflowersandgrass,freshandthewaterwasclean,beesandbutterfliesdancing,Theflowersandgrass,sodirty,terrible,chemicalfactories,wastewater,Everything,Languagepoints,youcouldseebeesandbutterfliesdancing.你还能看见蜜蜂和蝴蝶在飞舞。点拨:seesb./sth.doingsth.看见某人/某物正在做某事对比:seesb./sth.dosth.看见某人/某物做了某事(全过程)拓展：类似的动词还有hear,watch,find,feele.g.(1)IsawJack_soccertherewhenIwalkedpasttheplayground.A.toplayB.playingC.playedD.play(2)Isawher_theroadjustnow.A.crossB.crossedC.crossesD.tocross,B,A,2.Theflowersandgrasshavegone！花和草都消失了。点拨：have/hasgone不见了，消失了,e.g.我的钱不见了。_,Mymoneyhasgone.,3.Soundsgreat!听起来真棒！Itsmellsterrible.气味真难闻。点拨：soundsgreat，smellsterrible系表结构：系动词+形容词,初中常见的系动词总结：be/keep/feel/smell/sound/taste/look/seem+形容词,e.g.1)音乐听起来很棒。_2)我感到很开心。_,Themusicsoundsgreat.,Ifeelveryhappy.,4.Look,thereareseveralchemicalfactoriespouringwastewaterintothestream.看，有几家化工厂正在往小溪里排放废水。,e.g.请把红酒倒进杯子里Please_theredwine_theglass.,pourinto,点拨(1)：therebe+sb./sth.+doingsth.有某人/某物正在做某事,点拨(2):pourinto把倒入,e.g.听！有个人在隔壁唱歌。Listen!_someone_inthenextroom.,Thereissinging,2Workinpairs.Lookatthepicturesandmakeupconversationssimilartotheexamplewithyourpartner.,Example:A:TherewerelotsofflowersandgrasswhenIvisitedthevillagelastyear.B:Butnowtheflowersandgrasshavegone.A:Whathashappenedhere?B:Thevillagershavedestroyedthem.,village/flowersandgrassvillagers/destroy,hill/treesfarmers/cutdown,A:TherewerelotsoftreeswhenIvisitedthehilllastyear.B:Butnowthetreeshavegone.A:Whathashappenedhere?B:Thefarmershavecutthemdown.,lake/fishfactory/pollute,A:TherewerelotsoffishwhenIvisitedthelakelastyear.B:Butnowthefishhavegone.A:Whathashappenedhere?B:Thefactoryhaspollutedthem.,一般过去时和现在完成时的用法区别,表示过去发生或已完成的动作对现在的影响,表示过去发生的动作或存在的状态（与现在无关）,yesterday,lastnight,时间段+ago,in2005,inthepast,for+时间段,since,recently,sofar,already,yet,just,inthepast+时间段,Exercises,用所给动词的适当形式填空。WhenIenteredtheroom,IsawMaria_(read)aChinesebook.2.Whatashame!Theflowersandtreesinthepark_(go).3.Everything_(change)inthepastfewyears.4.Wherehavetheybeen?They_(be)totheGreatWall.They_(have)agoodtimetherethedaybeforeyesterday.5.Thefood_(taste)delicious.,reading,havegone,haschanged,havebeen,had,tastes/tasted,_,_,Exercises,单项选择()1.Look!Therearesomeboys_ontheplayground.A.playfootballB.areplayingfootballC.playingfootballD.playsfootball()2.ImsorryIcantgoshoppingwithyou.Iamill._A.Whatamess!B.Whatashame!C.Whatapity!D.BandC()3.Dont_water.Wemustsaveeverydropofit.Sorry,Iwontdoitagain.A.wasteB.throwC.playD.leave,C,D,A,中考链接,1.Thissilkdress_sosmooth.ItsmadeinChina.A.feelsB.smellsC.soundsD.tastes2.WhatdoyouthinkofthenewforeignteacherThomson?Prettygood.Ithinkhe_agreatjobsofar.A.doesB.didC.hasdoneD.wasdone3.Ourmathteacher_inourschoolfor20yearsandhe_herewhenhewas23yearsold.A.hastaught;haseB.taught;eC.taught;cameD.hastaught;came,A,C,_,D,_,_,Somephrases:seesb.doingsth.,pourinto,have/hasgone2.Somesentences:Youcouldseebeesandbutterfliesdancing.Theflowersandgrasshavegone！Itsmellsterrible.(4)Therear