Unit8SaveOurWorldLesson45Let'sSortGarbage!1

學習目標2

新課導入3

新課講解

4

當堂小練5

課堂小結目錄contentsMasterthenewwordsandexpressions:sort,metal,weight,percent.Callonthestudentstotakeactionstoprotectourenvironment.Learnaboutthepollutionproblemsinourlife.學習目標思考Lookatthepicture.Whenwethrowawaythegarbage,wemustsortit.Why?新課導入

THINKABOUTIT·Whatdoyoudowithyourgarbage?·Whatkindsofthingscanberecycledandreused?新課講解Dannyemptiestwobagsofgarbageontothefloor.Jenny:That'salotofgarbage!CanIhelpyousortit?Danny:Yes,please.Let'sputtheglasshere,themetalhere,the

plastichereandthepaperhere.(Aftertheysortthegarbage,DannyandJennyaresurprised.Almostallofitcanbereusedorrecycled！Theyneedtothrowawayonlyonesmallbagofgarbage!)Jenny:Peoplethrowtoomuchaway.Theyshouldn'twastesomuch!Danny:That'sright.Look！Thereismorepaperthanplastic.And

thereislessmetalthanplastic.Thereistheleastamountofglass.Jenny:Andthemostamountispaper.Itisawastetousepaperonly

ononeside.Danny:Hey!Ifoundatoycar.Oneofthewheelsisbroken.I'lltake

thiscarhomeandcleanit.ThenI'llusesomegluetofixthe

brokenwheel.WhenIfinishfixingthiscar,Iwillgiveittomy

littlecousin,Debbie.Jenny:Nobodyshouldthrowawayatoylikethis.Itcanbefixed.

It'snotrighttowastethings.Lookatalloftheglass.Itcan

allberecycledandmadeintonewglass.Danny:Alotofglassisbroken.It'sdangeroustoleavebrokenglasson

theground.Once,Icutmyfootonapieceofbrokenglass.Jenny:Littercanhurtpeople！Languagepoint1Dannyemptiestwobagsofgarbageontothefloor.empty/'empt?/v.把……弄空adj.空的empty可作動詞，意為“把……倒空；把……掏空”。e.g.Canyouemptytheplatesforme?你能替我把盤子里的東西倒掉嗎？Languagepoint2CanIhelpyousortit?sort/s??t/v.把……分類，整理n.類；種類sort作動詞常用短語：sortout理順；整理

o把……分類e.g.Ittookquiteawhiletosortoutallourluggage.整理我們?nèi)康男欣罨瞬簧贂r間。e.g.Hehelpedmetosortthefruitsintoapples,pearsandbananas.他幫我把水果分成了蘋果、梨和香蕉。Languagepoint3Theyneedtothrowawayonlyonesmallbagofgarbage!need/ni?d/v.需要實義動詞needtodosth.表示主語與need后的動詞存在主動關系needdoing或needtobedone表示主語與need后的動詞存在被動關系情態(tài)動詞引導一般疑問句時，肯定回答用must,否定回答用needn’tneed的用法Languagepoint4Oneofthewheelsisbroken.broken/br??k?n/adj.壞的；破碎的；出了毛病的作形容詞e.g.Thewindowwasbrokenlastweek.上周窗戶壞了。作動詞e.g.ItmustbeBillywhohasbrokentheglass.一定是比利打碎的杯子。Languagepoint5Littercanhurtpeople!litter/'l?t?/n.(rubbish)垃圾；v.扔垃圾；使亂七八糟litter作不可數(shù)名詞，意為“垃圾，廢棄物”，與rubbish同義。e.g.Thereistoomuchlitterintheroom.房間里有太多的垃圾。e.g.Pilesofbooksandnewspaperslitteredthefloor.地板上亂七八糟地堆了許多書和報紙。1

Readthelessonandwritetrue(T)orfalse(F)．Let'sDoIt!1．Thereisalotofgarbage:glass,metal,plasticandpaper.()2．Thereisthemostamountofglassandtheleastamountofpaper.()3．DannyfoundDebbie'stoycarinthegarbage.()4．Dannyoncecuthisfootonapieceofbrokenglass.(

)TFFTExample：Itisawastetousepaperonlyononeside.1．Itisfuntotravel!2．Itisnotrighttowastethings.3．Itisquiteeasytofindinformationwiththisprogram.4．Theythink

it

isrudetopointwithafinger.5．Itisdangeroustoleavebrokenglassontheground.2Circlethewordsthat“it”referstoineachsentence.LearntolearnAsweknow,“it”canbeusedtorefertotime,weather,distanceorsomethingmentionedbefore.Studythesentencesabove.Canyoufindotherwaysofusing“it”？PROJECTSORTTHEGARBAGEGoforawalkaroundyourneighbourhood.Takeabagwithyouandpickupanygarbageyousee.Wearglovesbecausegarbageisdirty.Bringthegarbagetoschool.Don'tthrowitaway!Whatkindofgarbagedidyoufind?Sortthegarbage.Makeapileforpaper,plastic,metal,glassandotherthings.·Howmuchofeachtypeofgarbagedoyouhave?·Whattypedoyouhavetheleast/mostamountof?Doyouwanttothrowawaythegarbagenow?Don't!Whatelsecouldyoudowithit?Think!Couldyouusesomeofthegarbageagain?How?Howcouldpeoplemakelessgarbage?Talkaboutthisandwritedownyourideas.Nowyoucantakeoutthegarbage！Howcouldpeoplemakelessgarbage？First，peoplecanbuyfewerthings.Whentheybuyfewerthings，theythrowawayfewerthings.Second，peoplecanreusethings.Theycanusethings，andthentheyusethemagain.Third，peoplecanrecyclethings.Theycanmakeoldthingsintonewthings.詞語運用1.Canyouhelpme________(分類)therubbish?2.Canyouhelpmepickupthe________(垃圾).3.Whatisthe________(數(shù)量)ofthepaper?4.Someoftherubbishis________(塑料)