Unit 13 Were trying to save the earth Section A 第1课时示范教学课件【人教版九年级英语】

Unit13We’retryingtosavetheearth.SectionA（第1课时）

1a-2dTheearthispolluted.Step1:Lead-inairpollutionThefactoriesthatburncoal

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

n.垃圾rubbishwaste垃圾，废弃物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（渔民）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!

我们正在竭尽全力拯救地球!trytodo=tryone’sbesttodo努力去做某事

e.g.We’ll

try

tofinish

theworkinaweek.

我们将努力在一周内完成这项工作。Step5:Languagepoints2.Hereare

somewordsrelatedto

differentkindsofpollution.berelatedto与……有关

e.g.

Is

thedriverrelatedto

theaccident?

司机和这起事故有关吗？Step5:Languagepoints3.Eventhebottomoftheriverwasfullof

rubbish.

Yes,butpeoplearethrowinglitter

intotheriver.litter和rubbish都可指“垃圾”，用作不可数名词。rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。Step5:Languagepointslitter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶等）”还可回收。e.g.Throwtherubbish

out.

把垃圾扔出去。

Theroomisfullofrubbish.

房间里堆满了垃圾。

Pickupyourlitter

afterapicnic.

野餐后将废弃物收拾好。Step5:LanguagepointsStep6:ListeningDiscusswhatcausesthefollowingpollutions.注：此图片是听前活动缩略图，如需使用此资源，请插入图片听前活动。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.关掉Step8:DiscussionstopridingincarsStep8:Discussionstopusingpapertowelsornapkinsn.餐巾,餐巾纸Step8:Discussionrecycle

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

takeaway（外卖食物）food.Iusetheonesathome.Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Greatideas!Whataboutwastepollution?Step9:ReadingAndremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!Step9:ReadingCompletethechartaccordingto2d.PollutionWaystosolvetheproblemairpollutionwastepollutiontakethebus,subwayorrideabikeinsteadofdrivingbringabagtogoshoppingnevertakewooden（木头的）chopsticksorplasticforkswhenbuyingtakeawayfoodthrowrubbishinthebinsStep9:Reading1.It’sgoodforhealthanditdoesn’tcost

anything!costv.花费；使付出

指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。

e.g.Thenewshirtcost

Mr.Wang200yuan.

王先生花了200元买了新衬衫。

Howmuchdoesthenewcomputer

cost?

新电脑花了多少钱？Step10:Languagepointstake,spend,pay&costtake，spend，pay和cost都可以表示“花费”，但他们的用法各有不同。（1）take多表示花费时间，常用于ittakessb.sometimetodosth.这一句型中，其中it作形式主语。e.g.It

usually

takes

me40minutestocook

thedinner.

通常我做饭需要花40分钟。Step10:Languagepoints（2）spend多表示花费时间和金钱，主语通常是人，常用于sb.spend(s)sometime/moneyonsth.和sb.spend(s)sometime/money(in)doingsth.两种句型。e.g.Davidspent2,000yuanonthenewmachine.

戴维花了2000元买新机器。Myfatherspends

anhour(in)reading

thenewspaper

everyday.爸爸每天花一小时看电视新闻。Step10:Languagepoints（3）pay多表示花费金钱，主语通常是人，常用于sb.pay(s)somemoneyforsth.句型。

e.g.Tommypaid

20yuan

for

hisbreakfastyesterday.汤姆昨天的早餐花了20元。（4）cost多表示花费金钱，主语通常是物，常用于sth.cost(s)(sb.)somemoney.句型。

e.g.Thenewdresscost

Linda80yuan.新衣服花了琳达80元。Step10:Languagepoints根据句意用take,spend,pay或cost的适当形式填空。1.Thatnewcar________

themlotsofmoney.2.Mona_____