Unit 13 Were trying to save the earth Section A 第1課時(shí)示范教學(xué)課件【人教版九年級(jí)英語】

Unit13We’retryingtosavetheearth.SectionA（第1課時(shí)）

1a-2dTheearthispolluted.Step1:Lead-inairpollutionThefactoriesthatburncoal

pollutetheairwithalotofblacksmoke.n.煤炭Step1:Lead-inFactoriesputwasteintotheriver.waterpollutionStep1:Lead-inmobilephonepollutionStep1:Lead-inlitterv.亂扔

n.垃圾rubbishwaste垃圾，廢棄物Peopleshouldthrowawaylitterinthebin.n.垃圾箱Step1:Lead-innoisepollutionTherearemorecarsontheroad.Step1:Lead-in1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.Step2:Presentationnoisepollution________________________________________________airpollution____________________________________________waterpollution________________________________________________loudmusicplanesmobilephonesfactoriescarssmokingshipsfactorieslitteringrubbishbuildinghousesbuildinghousesloudmusiccarsrubbishplanes

litteringshipsfactoriessmoking

buildinghousesmobilephonesStep2:Presentation1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom（底部）oftheriverwasfullof_________.Therewerenomore______forfishermen（漁民）tocatch.reallydirtyrubbishfishStep3:ListeningWhatcausedtheproblem?Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.litterwastegovernmentclosedowncleanupStep3:ListeningListenagainandanswerthefollowingquestions.WhatdoesTonywanttodolaterthisafternoon?HewantstogoswimmingwithMarkinthe

riverlaterthisafternoon.Step3:Listening2.Whydoesn’tMarkwanttogowithTony?Becausetheriverwasreallydirty.Eventhe

bottomoftheriverwasfullofrubbish,and

therewerenomorefishforfishermentocatch.3.Howwastheriverinthepast?Itusedtobesoclean.Ithasbeenthenicest

riverinthistown.Step3:Listening1cTheriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Butitusedtobesoclean!Step4:PracticeRole-playtheconversation.Thenmakeyourownconversationsaboutthekindsofpollutionin1a.Yes,butpeoplearethrowinglitterintotheriver.Everyoneinthistownshouldplayapartincleaningitup!Step4:Practice1.We’retryingtosave

theearth!

我們正在竭盡全力拯救地球!trytodo=tryone’sbesttodo努力去做某事

e.g.We’ll

try

tofinish

theworkinaweek.

我們將努力在一周內(nèi)完成這項(xiàng)工作。Step5:Languagepoints2.Hereare

somewordsrelatedto

differentkindsofpollution.berelatedto與……有關(guān)

e.g.

Is

thedriverrelatedto

theaccident?

司機(jī)和這起事故有關(guān)嗎？Step5:Languagepoints3.Eventhebottomoftheriverwasfullof

rubbish.

Yes,butpeoplearethrowinglitter

intotheriver.litter和rubbish都可指“垃圾”，用作不可數(shù)名詞。rubbish指“沒用的東西（被扔或?qū)⒁獊G棄的無用的東西）”不可回收。Step5:Languagepointslitter指“（室內(nèi)或公共場(chǎng)所）亂扔的廢物（紙屑、不要的包裝紙、廢瓶等）”還可回收。e.g.Throwtherubbish

out.

把垃圾扔出去。

Theroomisfullofrubbish.

房間里堆滿了垃圾。

Pickupyourlitter

afterapicnic.

野餐后將廢棄物收拾好。Step5:LanguagepointsStep6:ListeningDiscusswhatcausesthefollowingpollutions.注：此圖片是聽前活動(dòng)縮略圖，如需使用此資源，請(qǐng)插入圖片聽前活動(dòng)。2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.landpollutionB.airpollutionC.noisepollutionD.waterpollutionStep6:Listening2bListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare___________ontheroadthesedays.2.Factoriesthatburncoalalso________theairwithalotofblacksmoke.morecarspolluteStep6:Listening3.Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.4.Peoplearealsolitteringin____________likeparks.Thisisturningbeautifulplacesintougly（丑陋）ones.arethrowingawaypublicplacesStep6:ListeningUsetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.2cTheairhasbecomereallypollutedaroundhere.I’mgettingveryworried.Yes,Iusedtobeabletoseestarsinthesky.Theproblemisthat…Step7:PracticeWhatshouldwedotosavetheearth?Step8:DiscussionTurnoffthelightswhenyouleavearoom.關(guān)掉Step8:DiscussionstopridingincarsStep8:Discussionstopusingpapertowelsornapkinsn.餐巾,餐巾紙Step8:Discussionrecycle

booksandpaperv.回收利用;再利用Step8:DiscussionJasonandSusan,whatareyourideasforsolvingtheseproblems?Role-playtheconversation2dStep9:ReadingYeah,orrideabike.Thereareotheradvantages（優(yōu)點(diǎn)）ofbikeriding.It’sgoodforhealthanditdoesn’tcost（花費(fèi)）anything!Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Step9:ReadingMe,too.Also,Inevertakewoodenchopsticksorplastic（塑料）forkswhenIbuy

takeaway（外賣食物）food.Iusetheonesathome.Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Greatideas!Whataboutwastepollution?Step9:ReadingAndremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!Step9:ReadingCompletethechartaccordingto2d.PollutionWaystosolvetheproblemairpollutionwastepollutiontakethebus,subwayorrideabikeinsteadofdrivingbringabagtogoshoppingnevertakewooden（木頭的）chopsticksorplasticforkswhenbuyingtakeawayfoodthrowrubbishinthebinsStep9:Reading1.It’sgoodforhealthanditdoesn’tcost

anything!costv.花費(fèi)；使付出

指花費(fèi)金錢，主語通常是物。cost的過去式和過去分詞均為cost。

e.g.Thenewshirtcost

Mr.Wang200yuan.

王先生花了200元買了新襯衫。

Howmuchdoesthenewcomputer

cost?

新電腦花了多少錢？Step10:Languagepointstake,spend,pay&costtake，spend，pay和cost都可以表示“花費(fèi)”，但他們的用法各有不同。（1）take多表示花費(fèi)時(shí)間，常用于ittakessb.sometimetodosth.這一句型中，其中it作形式主語。e.g.It

usually

takes

me40minutestocook

thedinner.

通常我做飯需要花40分鐘。Step10:Languagepoints（2）spend多表示花費(fèi)時(shí)間和金錢，主語通常是人，常用于sb.spend(s)sometime/moneyonsth.和sb.spend(s)sometime/money(in)doingsth.兩種句型。e.g.Davidspent2,000yuanonthenewmachine.

戴維花了2000元買新機(jī)器。Myfatherspends

anhour(in)reading

thenewspaper

everyday.爸爸每天花一小時(shí)看電視新聞。Step10:Languagepoints（3）pay多表示花費(fèi)金錢，主語通常是人，常用于sb.pay(s)somemoneyforsth.句型。

e.g.Tommypaid

20yuan

for

hisbreakfastyesterday.湯姆昨天的早餐花了20元。（4）cost多表示花費(fèi)金錢，主語通常是物，常用于sth.cost(s)(sb.)somemoney.句型。

e.g.Thenewdresscost

Linda80yuan.新衣服花了琳達(dá)80元。Step10:Languagepoints根據(jù)句意用take,spend,pay或cost的適當(dāng)形式填空。1.Thatnewcar________

themlotsofmoney.2.Mona_____