Unit 2 Topic 1 Section A 课件 1.ppt

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1、Unit2SavingtheEarthTopic1Pollutionhascausedtoomanyproblems.SectionA课件1A:Wherehaveyoubeen/traveled?B:Ihavebeen/traveledto...Haveyoueverhadapicnic?Kangkang,Jane,MariaandMichaelareplanningapicnicforSunday.TheywillgototheWestHill.Whatcanyouseethere?Wecanseebeesandbutte

2、rfliesdancing.beebutterflyIstheWestHillbeautiful?GuessWecanseetreesgrassWhatcanyouseeinthePicture1?flowersbutterflies…Step1QuestionsandanswersWhathashappenedinPicture2?Therearenotflowers,grass,treesandbutterflies.Theyhavegone.Thestreamisdirtyandtherearetoomuchwaste

3、inthestream.Thefactoryispouringwastewaterintothestreamandwaterpollutesthestreamanddestroysthevillage.Whatamess?Theflowersandgrasshavegone!Oh,mygoodness.Whatamess!Look!Thereareseveralchemicalfactoriespouringwastewaterintothestream.=havedisappeared.Isitbeautifulnow?W

4、hathashappenedthere?倒出；倾泻pour…into…把……倒入……e.g.Pourredwineintotheglass.1bListento1aandmarkthewordswithP(Past)orN(Now).____beautiful____butterflies____dirty____grass____terrible____factory____bees____fresh____clean____wastewaterPPNPNNPPPN1cRead1aandcompletethesentenc

5、esinthetable.Thenretell1atoyourpartner.beautifulplacelotsofflowersandgrassfreshandthewaterwascleanbeesandbutterfliesdancingTheflowersandgrasssodirtyterriblechemicalfactorieswastewaterEverything2Workinpairs.Lookatthepicturesandmakeupconversationssimilartotheexamplew

6、ithyourpartner.Example:A:TherewerelotsofflowersandgrasswhenIvisitedthevillagelastyear.B:Butnowtheflowersandgrasshavegone.A:Whathashappenedhere?B:Thevillagershavedestroyedthem.lake/fishfactory/pollutehill/treesfarmers/cutdownvillage/flowersandgrassvillagers/destroy4

7、Workingroupsandtalkaboutpollutioninaplaceyouarefamiliarwith.Thefollowingsentencesmayhelpyou.…ago,itwas…Now,…have/hasgone.Whathashappened?Everythinghaschanged.Oh,mygoodness!3A.Listentothesentencesandnumberthepictures.5321461.People_______________toomanytrees,soIdon’

8、thaveenoughleavestoeat.havecutdownB.Listenagainandcompletethesentences.2.Iliveintreesbutnowmanytrees__________.havegone3.Ilikeleavesandgrass,butn