SectionA1a-2dUnit8Wearetryingtosavetheearth!

Before-listening情境導入Whatkindsofpollutionarementionedinthevideo?shipsrubbish/industrialwastelitteringfactoriesfactoriessmokingcarsbuildinghousesloudmusicplanes/cars/machinesmobilephonesbuilinghouses/crowdsBefore-listening情境導入Writethewordsinthebox.Before-listening情境導入airpollutionWhathascausednoisepollution?Thefactoriesthat___________pollute

theairwithalotofblacksmoke.Loudmusic,buildinghouses,moreandmorecarshascausednoisepollution.

burn

coal

noisepollutionWhathascausedairpollution?Before-listening情境導入waterpollutionWhathascausedwaterpollution?Factoriesare________________theriver.putting

wasteintolandpollutionWhathascausedlandpollution?Peopleare______________everyday.throwinglitter新課探究While-listeningReadandpredictWhatareTonyandMarktalkingabout?reallydirtyrubbishfishlitterwastegovernmentclose

downcleanup新課探究Listenandcompletethesentences.1b單擊此處添加標題文本內(nèi)容新課探究Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butit

usedto

besoclean!Mark:Yes,butpeoplearelitteringintheriver.Tony:Everyoneinthistownshould

playapart

in

cleaningitup!Role-playtheconversation.1cProblemsCauseSolution單擊此處添加標題文本內(nèi)容新課探究A:Theairwasawful.Everyplaceisfullofbadsmell.B:Oh,itusedtobeclean,right?A:Yes,butthefactoriesdischargewastegasintotheair.B:Ithinkthegovermentshouldclosedownthesefactories.Maketheconversationwithpartner.1cIt’syourturn.problemscausesolution單擊此處添加標題文本內(nèi)容新課探究JasonandSusanarebeinginterviewed.Let'slistentowhatthey'retalking.單擊此處添加標題文本內(nèi)容新課探究2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.

A.landpollutionB.airpollutionC.noisepollutionD.waterpollution單擊此處添加標題文本內(nèi)容新課探究Listenagainandcompletethesentences.2b1.Theairisbadlypollutedbecausethereare__________ontheroad

thesedays.2.Factoriesthatburncoalalso______theairwithalotofblack

smoke.3.Thereisalsotoomuchrubbishandwaste.People___________________thingseveryday.4.Peoplearealsolitteringin____________likeparks.Thisturns

beautifulparksinto

uglyones.morecarspollutearethrowingawaypublicplacescausesofairpollutioncausesoflandpollution單擊此處添加標題文本內(nèi)容新課探究Role-playconversationsbetweenJasonandSusan.Jason:Theairhasbecomereallypolluted

aroundhere.

I'mgettingveryworried.Susan:Yes,Iusedtobeabletoseestarsinthesky.Jason:Theproblemisthat...2c單擊此處添加標題文本內(nèi)容新課探究Retelltheconversationwithgiveninformation.JasonandSusanaretalkingaboutsomeenvironmentalproblemstheyhaveseen.Oneproblemisthat...Theotherproblemisthat...Theseareseriousproblemsforourenvironment.2cProblemsCausesair/bebadlypolluted/usedto/stars/blueskiesmorecars/factories/burncoal/blacksmokethereis/rubbishandwastethrowaway/everyday/litter/publicplaces單擊此處添加標題文本內(nèi)容新課探究Howcanwesolvetheseproblems?solutionListenandanswerthequestions.1.WhatdoesJasonthinktheyshoulddotocutdownairpollution?2.WhatdoesSusanthinkofbikeriding?3.WhendidSusanstartbringingabagtoshopping?Hethinkstheyshouldtakethebusorsubwayinsteadofdriving.Shethinksit'sgoodforhealthanditdoesn'tcostanything.Shestartedayearago.2dReadtheconversationof2donPage58andtrytoanswerthequestions.新課探究減輕空氣污染從不拿木制筷子或塑料叉子將垃圾扔進垃圾桶保持公共場所干凈美麗有影響走向一個更好的未來新課探究2dRole-playtheconversation.單擊此處添加標題文本內(nèi)容新課探究After-listeningWhataretheenvironmentalproblemsinourcity?Thinking單擊此處添加標題文本內(nèi)容Discussion--Whataretheenvironmentalproblemsinourcity?Theriver/air/landusedtobe...butnow...--Whathascaused

theseenvironmentalproblems?People/factories/...--Howcanweprotecttheenvironment/solvetheproblemsinourcity?

Wecanclosedown/helptoclean/...新課探究新課探究Languagepoints?

Sheplaysanactivepartinlocalpolitics.1.playapartin

playapartin意為“參與……”，相當于takepartin。in為介詞,其后跟名詞或動詞-ing形式。playanactivepartin意為“積極參加……”。

單擊此處添加標題文本內(nèi)容新課探究2.waste、garbage、rubbish、litter、debris、junk的區(qū)別單擊此處添加標題文本內(nèi)容新課探究3.makeadifferencemakeadifference(to...)表示“(對……)產(chǎn)生影響或作用”。

Doyouthinkhiswordswouldmakeanydifferencetothefinaldecision?

你認為他的話會對最后的決定產(chǎn)生影響嗎?★makenodifference沒有影響；無關(guān)緊要★makeallthedifference關(guān)系重大；大不相同★

haveaninfluenceon/influence“(對……)產(chǎn)生影響或作用”★haveeffectson意為“(對……)產(chǎn)生影響或作用”

拓展新課探究Ⅰ.單選。

1.He_____gooutwithhisparents,butnowhe_____stayingathomealone.A.usedto;isusedto B.isusedto;usedtoC.usedto;usedtoD.isusedto;isusedto2.Theinterestingbook_____me10yuan.A.tookB.paidC.spend D.cost

3.Wemustdosomethingusefulto____pollution.A.cutoffB.cutup

C.cutdownD.cutin

4.Smokingcan____lungcancer.You’dbetttergiveitup.A.workonB.leadto

C.takeawayD.putout√√√√writeto,leadto,cleanup,cutdown,playapartin1.Whatamess!Youshould____________yourroomnow.2.Everyfarmerknowsthatweather____________farming.3.A