【文档说明】《Unit 2 Topic 1 Pollution has causes too many problems》课件2-九年级上册英语仁爱（科普版）.ppt，共(25)页，7.084 MB，由小喜鸽上传

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Unit2SavingtheEarthTopic1Pollutionhascausedtoomanyproblems.SectionAA:Wherehaveyoubeenduringyourholidays?

B:Ihavebeento...OurhometownYuanZiRiverHaveyoueverhadapicnic?Kangkang,Jane,MariaandMichaelareplanningapicnicforSunday.Theywillgotot

heWestHill.Listenandanswer:1.WastheWestHillbeautifultwoyearsago?2.Haseverythingchanged?Yes,itwas.Yes,ithas.1bListento1aandmarkthewor

dswithP(Past)orN(Now).____beautiful____butterflies____dirty____grass____terrible____factory____bees____fresh____clean____wastewaterPP

NPNNPPPN1cRead1aandcompletethesentencesinthetable.Thenretell1atoyourpartner.TwoyearsagoNow1.Itwasa_______________.2.Therewere________________

_______.3.Theairwas_______________________andyoucouldsee_______________________.1.___________________havegone.2.Thewateris________andsmells_______

____.3.Thereareseveral________________pouring_______________intothestream.4._____________haschanged.beautifulplacelotso

fflowersandgrassfreshandthewaterwascleanbeesandbutterfliesdancingTheflowersandgrasssodirtyterriblechemicalf

actorieswastewaterEverything核对学案预习部分，并找出1a中的重点短语划在书上1.看见某人正在做某事2.这么脏乱！3.多么遗憾啊！4.有某人或某物正在做某事5.把……倒入……seesb

.doingsth.Whatamess!Whatashame!Therebesb.\sth.doingsth.pour…into…合作探究一：Theflowersandgrasshavegone.1.译：________

______________________2.go在此处为不及物动词，意为________.花和草都消失了不见了合作探究二：Youcouldseebeesandbutterfliesdancing.译：______________________________seesb.doingsth.

表示________________seesb.dosth.表示_____________________你能看到蜜蜂和蝴蝶在跳舞看见某人正在做某事看见某人做了某事针对性练习：我看到她打扫教室了Isawher_____

_(clean)theclassroom.我看到她正在打扫教室Isawher______(clean)theclassroom.cleancleaning合作探究三：Look,thereareseveralchemicalfactoriespouri

ngwastewaterintothestream.1.译：________________________________2.Therebesb.\sthdoingsth.表示___________________________针对性

练习：有个女孩子正在学校门口等你Thereisagirl______________youattheschoolgate.看，有几个化工厂正往小溪里排放废水。有某人或某物正在做某事waitingfor2W

orkinpairs.Lookatthepicturesandmakeupconversationssimilartotheexamplewithyourpartner.Example:A:Therewerelotso

fflowersandgrasswhenIvisitedthevillagelastyear.B:Butnowtheflowersandgrasshavegone.A:Whathashappenedhere?B:Thevillagers

havedestroyedthem.摧毁lake/fishfactory/pollutehill/treesfarmers/cutdownvillage/flowersandgrassvillagers/de

stroy:A:Therewerelotsoftrees.whenIvisitedthehilllastyear.B:Butnowthetreeshavegone.A:Whathashappenedhere?B:Th

efarmrshavecutthemdown.砍倒hill/treesfarmers/cutdownlake/fishfactory/polluteA:Therewerelotsoffish.whenIvisitedthelakelastyear.B:B

utnowthefishhavegone.A:Whathashappenedhere?B:Thefactoryhaspollutedthem.污染现在完成时与一般过去时的区别：现在完成时表示_______发生或已经完成的动作对_______造成的影响或结果，强调的是现在的情

况。________(能\不能）和表示过去的某一时间的时间状语连用。而一般过去时只表示______的动作或状态。和现在不发生联系。强调的是过去的情况。过去现在不能过去针对性练习：1.She_______(leave)homeyesterday.2.I____

_already______(have)lunchandI’mnothungrynow.lefthavehad3A.Listentothesentencesandnumberthepictures.5321461.People_______________to

omanytrees,soIdon’thaveenoughleavestoeat.2.Iliveintreesbutnowmanytrees__________.3.Ilikeleavesandgrass,butnowthey___

______________.4.I__________hungryformonthsbecauseoflessbamboo.5.Humanpollutedthesea,soI_______________.6.Thewater__________manyye

arsago.Butit_______________formetoliveinnow.B.Listenagainandcompletethesentences.havecutdownhavegonehavedisappearedhavebe

endon’tlivehappilywascleanistoodirty4.美丽的草原我的家，风吹绿草遍地花，彩蝶纷飞百鸟儿唱，骏马好似彩云朵，这是一首耳熟能详的歌唱我们家乡的歌，但是近年来由于过度放牧，追求经济利益，

我们的家园正在受到破坏。请以Beautifulgrassland,myhome为题准备一篇口头作文。小组讨论要点。选出一名同学展示你们的作文。Youcanbeginlikethis:Ilovemyhometown.Itwasabeautifulplacetenyear

sago,Therewere…Theairwas…andthewater…Youcouldsee…butnoweverythinghaschanged…The….havegone….Thewateris…Whatashame!Weshouldvalueourhome.Let’stryo

urbesttoprotectourhometown!单项选择()1.Look!Therearesomeboys________ontheplayground.A.playfootballB.areplayingfootballC.playingfootball

D.playsfootball()2.—I’msorryIcan’tgoshoppingwithyou.Iamill.—________A.Whatamess!B.Whatashame!C.Whatapity!D.BandC()3.—Don’t________w

ater.Wemustsaveeverydropofit.—Sorry,Iwon’tdoitagain.A.wasteB.throwC.playD.leaveCDA用所给动词的适当形式填空。1.WhenIente

redtheroom,IsawMaria________(read)aChinesebook.2.Whatashame!Theflowersandtreesinthepark_________(go).3.Eve

rything_____________(change)since2010.4.—Wherehavetheybeen?—They__________(be)totheGreatWall.They_______(have)agoodtimetherethedayb

eforeyesterday.readinghavegonehaschangedhavebeenhad1.Expressexclamation:Whatamess!Whatashame!2.KnowthedifferencesbetweenSimplePastandPresentp

erfect.Itwasabeautifulplace.Everythinghaschanged.1.Somewords:bee,butterfly,mess,shame,several,pour,waste,destroy,pollute,goodness2.Somephrases:s

eesb.doingsth.pour…into..3.Somesentences:Thereare…doing…Homework1.Read1a.2.Writeapassage:Beautifulgrassland,myhometown3.Finish

SectionAinyourworkbook.4.PreviewSectionB.Thankyou.