Unit 2 Topic 1 Section A 课件 1

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

2、butterflyIstheWestHillbeautiful?GuessWecanseetreesgrassWhatcanyouseeinthePicture1?flowersbutterflies…Step1QuestionsandanswersWhathashappenedinPicture2?Therearenotflowers,grass,treesandbutterflies.Theyhavegone.Thestreamisdirtyandtherearetoomuchwasteinthestream.Thefactoryispouringwas

3、tewaterintothestreamandwaterpollutesthestreamanddestroysthevillage.Whatamess?Theflowersandgrasshavegone!Oh,mygoodness.Whatamess!Look!Thereareseveralchemicalfactoriespouringwastewaterintothestream.=havedisappeared.Isitbeautifulnow?Whathashappenedthere?倒出；倾泻pour…into…把……倒入……e.g.Pourr

4、edwineintotheglass.1bListento1aandmarkthewordswithP(Past)orN(Now).____beautiful____butterflies____dirty____grass____terrible____factory____bees____fresh____clean____wastewaterPPNPNNPPPN1cRead1aandcompletethesentencesinthetable.Thenretell1atoyourpartner.TwoyearsagoNow1.Itwasa_______

5、________.2.Therewere_______________________.3.Theairwas_______________________andyoucouldsee_______________________.1.___________________havegone.2.Thewateris________andsmells___________.3.Thereareseveral________________pouring_______________intothestream.4._____________haschanged.

6、beautifulplacelotsofflowersandgrassfreshandthewaterwascleanbeesandbutterfliesdancingTheflowersandgrasssodirtyterriblechemicalfactorieswastewaterEverything2Workinpairs.Lookatthepicturesandmakeupconversationssimilartotheexamplewithyourpartner.Example:A:Therewerelotsofflowersandgrassw

7、henIvisitedthevillagelastyear.B:Butnowtheflowersandgrasshavegone.A:Whathashappenedhere?B:Thevillagershavedestroyedthem.lake/fishfactory/pollutehill/treesfarmers/cutdownvillage/flowersandgrassvillagers/destroy4Workingroupsandtalkaboutpollutioninaplaceyouarefamiliarwith.Thefollowings

8、entencesmayhelpyou.…ago,it