Unit2SavingtheEarthSectionATopic1Pollutionhascausedtoomanyproblems.Task1Wherehaveyoubeen/traveled?Ihavebeen/traveledto...Warming-upFreetalkPre-listeningbeen.

蜜蜂butterfly

n.

蝴蝶Whatcanyouseethere?Wecansee

beesandbutterfliesdancing.LookandtalkButnowithaschangedalot.Theflowersandgrasshavegone.Thewaterissodirty.Itsmellsterrible.Whatamess!真是一團(tuán)糟！Oh,mygoodness!Pre-listeningLookandtalkWhatashame!多可惜！ListenandmarkthewordswithP(Past)orN(Now)___beautiful___butterflies___dirty___grass___terrible___factory___bees___fresh___clean___wastewaterPPNPNNPPPNWhile-listeningwastewater廢水,wastepaper廢紙Wastewater.浪費(fèi)水。Don’twastepaper.不要浪費(fèi)紙。wasteadj.v.LanguagepointsWhile-listeningThereare

severalchemicalfactoriespouring

wastewaterintothestream.有幾家化工廠正在往小溪里排放廢水。e.g.Thereareseveralpeoplewaitingforthebusatthebusstop.Therebe…doingsth.有……在做某事several

det.&pron.幾個(gè)，數(shù)個(gè)pour…into…把……倒入……While-listeningTwoyearsagoNow1.Itwasa_______________.2.Therewere_____________________.3.Theairwas________________

_________andyoucouldsee

_________________________.1.___________________havegone.2.Thewateris________andsmells

________.3.Thereareseveral__________________pouring___________intothestream.4.____________haschanged.beautifulplacelotsofflowersandfreshandthewaterbeesandbutterfliesdancinggrasswascleanTheflowersandgrassterriblesodirtychemicalfactorieswastewaterEverythingPost-listeningReadandcompletethesentencesinthetablePost-listeningListenandactitoutMakeupconversationsSample:A:Therewerelotsofflowersandgrass

whenIvisitedthevillage

lastyear.B:Butnowtheflowersandgrass

havegone.A:Whathashappenedthere?B:Thevillagers

have

destroyed

them.village/flowersandgrassvillagers/destroyPost-listeninghill/treesfarmers/cutdownlake/fishfactory/pollutePost-listeningTask2Pre-listeningDiscussWhenhumandestroytheenvironment,whathappentotheanimals?Tips:Theyareindanger…Theylosttheirhome…Listentothesentencesandnumberthepictures532146

While-listeningListenandcompletethesentences1.People__________________toomanytrees,soIdon’thaveenoughleavestoeat.2.Iliveintreesbutnowmanytrees__________.3.Ilikeleavesandgrass,butnowthey_________________.4.I__________hungryformonthsbecauseoflessbamboo.5.Humanpollutedthesea,soI_________________.6.Thewater__________manyyearsago.Butit_______________formetoliveinnow.havecutdownhavegonehavedisappearedhavebeendon’tlivehappilywascleanistoodirtyWhile-listeningWorkingroupsandtalkaboutpollutioninaplaceyouarefamiliarwith.Post-listeningFreetalkTips:…ago,itwas…Now,…h(huán)ave/hasgone.Whathashappened?Everythinghaschanged.Oh,mygoodness!1.Wordsandphrases:bee,butterfly,mess,shame,several,pour,waste,villager,destroy,pollute,

cutdown,seesb./sth.dosth.,seesb./sth.doingsth.,mygoodness2.Keysentences:

Iwenttheretwoyearsago.Therewerelotsofflowersandgrass.Whatamess!/Whatashame!Theflowersandgrasshavegone!Whathashappenedhere?Thereareseveralfactoriespouringwastewaterintothestream.E