【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...OurhometownYuanZiRiverHav

eyoueverhadapicnic?Kangkang,Jane,MariaandMichaelareplanningapicnicforSunday.TheywillgototheWestHill.Listenandanswer:1.WastheWestHillbeautifult

woyearsago?2.Haseverythingchanged?Yes,itwas.Yes,ithas.1bListento1aandmarkthewordswithP(Past)orN(Now).____beautiful____but

terflies____dirty____grass____terrible____factory____bees____fresh____clean____wastewaterPPNPNNPPPN1cRead1aandcompletethesen

tencesinthetable.Thenretell1atoyourpartner.TwoyearsagoNow1.Itwasa_______________.2.Therewere_______________________.3.T

heairwas_______________________andyoucouldsee_______________________.1.___________________havegone.2.Thewateris________andsmells____

_______.3.Thereareseveral________________pouring_______________intothestream.4._____________haschanged.beautifulplacelotsofflowersandgrassfreshand

thewaterwascleanbeesandbutterfliesdancingTheflowersandgrasssodirtyterriblechemicalfactorieswastewater

Everything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.doi

ngsth.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：Youcou

ldseebeesandbutterfliesdancing.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.cleancl

eaning合作探究三：Look,thereareseveralchemicalfactoriespouringwastewaterintothestream.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______________yo

uattheschoolgate.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waitingfor2Workinpairs.Lookatthepicturesandmakeupconversationssimilartotheexamp

lewithyourpartner.Example:A:TherewerelotsofflowersandgrasswhenIvisitedthevillagelastyear.B:Butnowtheflowersandgrasshavegone.A:Whathashappened

here?B:Thevillagershavedestroyedthem.摧毁lake/fishfactory/pollutehill/treesfarmers/cutdownvillage/flowersandg

rassvillagers/destroy:A:Therewerelotsoftrees.whenIvisitedthehilllastyear.B:Butnowthetreeshavegone.A:Wha

thashappenedhere?B:Thefarmrshavecutthemdown.砍倒hill/treesfarmers/cutdownlake/fishfactory/polluteA:Therewerelotsoffish.whenIvisitedthelakelast

year.B:Butnowthefishhavegone.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.lefthavehad3

A.Listentothesentencesandnumberthepictures.5321461.People_______________toomanytrees,soIdon’thaveenoughleavestoeat.2.I

liveintreesbutnowmanytrees__________.3.Ilikeleavesandgrass,butnowthey_________________.4.I__________hungryformonthsbecauseoflessbamboo.5.Humanpollu

tedthesea,soI_______________.6.Thewater__________manyyearsago.Butit_______________formetoliveinnow.B.Listenagainandcompletethesentences.havecutdow

nhavegonehavedisappearedhavebeendon’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.Itwasabeau

tifulplacetenyearsago,Therewere…Theairwas…andthewater…Youcouldsee…butnoweverythinghaschanged…The….havegone….Thewateris

…Whatashame!Weshouldvalueourhome.Let’stryourbesttoprotectourhometown!单项选择()1.Look!Therearesomeboys________ontheplaygr

ound.A.playfootballB.areplayingfootballC.playingfootballD.playsfootball()2.—I’msorryIcan’tgoshoppingwithyou.Iamill.—________A.Whata

mess!B.Whatashame!C.Whatapity!D.BandC()3.—Don’t________water.Wemustsaveeverydropofit.—Sorry,Iwon’tdoitagain.A.wasteB.throwC.playD.leaveCDA用所给动词的适当形

式填空。1.WhenIenteredtheroom,IsawMaria________(read)aChinesebook.2.Whatashame!Theflowersandtreesinthepark_________(go).3.Every

thing_____________(change)since2010.4.—Wherehavetheybeen?—They__________(be)totheGreatWall.They_______(have)agoodtimethere

thedaybeforeyesterday.readinghavegonehaschangedhavebeenhad1.Expressexclamation:Whatamess!Whatashame!2.

KnowthedifferencesbetweenSimplePastandPresentperfect.Itwasabeautifulplace.Everythinghaschanged.1.Someword

s:bee,butterfly,mess,shame,several,pour,waste,destroy,pollute,goodness2.Somephrases:seesb.doingsth.pour…i

nto..3.Somesentences:Thereare…doing…Homework1.Read1a.2.Writeapassage:Beautifulgrassland,myhometown3.FinishSectionAinyourworkbook.4.PreviewSectio

nB.Thankyou.