九年级英语上册Unitt-2-Saving-the-earth-Topic-1-Pollution-

Unit2SavingtheEarth1/30Topic1Pollutionhascausedtoomanyproblems.SectionA课件12/30A:Wherehaveyoubeen/traveled?B:Ihavebeen/traveledto...3/30Haveyoueverhadapicnic?Kangkang,Jane,MariaandMichaelareplanningapicnicforSunday.TheywillgototheWestHill.4/30Whatcanyouseethere?Wecanseebeesandbutterfliesdancing.beebutterflyIstheWestHillbeautiful?Guess5/30

WecanseetreesgrassWhatcanyouseeinthePicture1?flowersbutterflies…

Step1Questionsandanswers6/30

WhathashappenedinPicture2?Therearenotflowers,grass,treesandbutterflies.Theyhavegone.Thestreamisdirtyandtherearetoomuchwasteinthestream.Thefactoryispouringwastewaterintothestreamandwaterpollutesthestreamanddestroysthevillage.Whatamess?7/30Theflowersandgrass

have

gone!Oh,mygoodness.Whatamess!Look!Thereareseveralchemicalfactoriespouringwastewaterintothestream.=have

disappeared.Isitbeautifulnow?Whathashappenedthere?8/30倒出；倾泻pour…into…把……倒入……e.g.Pourredwineintotheglass.9/301bListento1aandmarkthewordswithP(Past)orN(Now).____beautiful____butterflies____dirty____grass____terrible____factory____bees____fresh____clean____wastewaterPPNPNNPPPN10/301cRead1aandcompletethesentencesinthetable.Thenretell1atoyourpartner.TwoyearsagoNow1.Itwasa_______________.2.Therewere_______________________.3.Theairwas_______________________andyoucouldsee_______________________.1.___________________havegone.2.Thewateris________andsmells___________.3.Thereareseveral________________pouring_______________intothestream.4._____________haschanged.beautifulplacelotsofflowersandgrassfreshandthewaterwascleanbeesandbutterfliesdancingTheflowersandgrasssodirtyterriblechemicalfactorieswastewaterEverything11/302Workinpairs.Lookatthepicturesandmakeupconversationssimilartotheexamplewithyourpartner.Example:A:Therewerelotsofflowersandgrass

whenIvisitedthevillagelastyear.B:Butnowtheflowersandgrasshavegone.A:Whathashappenedhere?B:Thevillagershavedestroyedthem.lake/fishfactory/pollutehill/treesfarmers/cutdownvillage/flowersandgrassvillagers/destroy12/304Workingroupsandtalkaboutpollutioninaplaceyouarefamiliarwith.Thefollowingsentencesmayhelpyou.…ago,itwas…Now,…have/hasgone.Whathashappened?Everythinghaschanged.Oh,mygoodness!13/30

3A.Listentothesentencesandnumberthepictures.53214614/301.People_______________toomanytrees,soIdon’thaveenoughleavestoeat.havecutdownB.Listenagainandcompletethesentences.15/302.Iliveintreesbutnowmanytrees__________.havegone16/303.Ilikeleavesandgrass,butnowthey_________________.

havedisappeared17/304.I__________hungryformonthsbecauseoflessbamboo.havebeen18/305.Humanpollutedthesea,soI_______________.don’tlivehappily19/306.Thewater__________manyyearsago.Butit_______________formetoliveinnow.

wascleanistoodirty20/30Exercises21/301.Smokingisharmful____one’shealth.A.inB.atC.onD.to

D22/302.It’sonly_____oftimetospeaktoher.A.awasteB.wasteC.towasteD.wasted

A23/303.Thereare30students_____inthisclass.A.readB.readingC.readD.readsB24/304.Ifeelitisourdutynot____ourenvironment.A.polluteB.pollutedC.pollutionD.topolluteD25/305.They______LondononFriday.A.reachedB.gotC.arrivedD.arrivedtoA26/30Summary27/301.Somewords:bee,butterfly,mess,shame,several,pour,waste,destroy,pollute,goodness2.Somephrases:seesb.doingsth.pour…into..3.Somesentences:Thereare…doing…

Welearn:28/301.Expresse