Module 9 Population Unit 3-2 示范公开课教学课件（外研版八年级上册）

Module9PopulationUnit3Languageinuse2Warming-upWorkinpairsandtalkabouttheproblemsinyourhometown.冠词分为不定冠词a/an、定冠词the和零冠词三种，零冠词指的是不用冠词的情况。Presentation1.不定冠词有两个：a和an。a用在读音以辅音音素开头的单词前，an用在读音以元音音素开头的单词前，泛指“一个”。e.g.abook,anapple不定冠词通常用于第一次出现的可数名词单数前。

e.g.Thereisabagintheroom.Thebagisheavy.2.定冠词the用来特指某人或某物，也用于第二次出现的名词前。e.g.Ihaveanicecat.Thecatiswhite.Grammar3.零冠词1)在三餐、学科、语言、球类运动、棋类游戏和娱乐运动的名称前，不加冠词。e.g.havebreakfast/math/chemistry/basketball/chess2)在季节、月份、节日、假日、日期、星期等表示时间的名词之前，不加冠词。e.g.WegotoschoolfromMondaytoFriday.3)在表示人名，头衔，职务，称号前，在地名，国名，城市，街道，标题类和字首为Mount的山及大多数湖泊的专有名词前不用冠词。e.g.MountBlanc(白朗峰)

LakeBaikal(贝加尔湖)Presentation4)

泛指、类指的复数名词，抽象名词、物质名词表示一般概念时常不加冠词。e.g.Booksaremybestfriends.5)前面已有物主代词、指示代词、不定代词、数量词等时不再用冠词。

如this,that,these,those,some,any,no,each,every，another,other,most,last,next,alotof,akindof等。6)固定搭配e.g.bybus,byplane,gottoschool,gotobed,inredPresentation1)If______weatherisfinetomorrow,wewillgotothepark.2)Ipreferplaying______pianotoplaying______basketball.3)At______ageoffive,hereadalotofbooks.4)TomandLucyareof______sameage.5)Tomorrowis______Teachers’Dayandwe’llmake______cardforourEnglishteacher.the/thethethe/aPracticeGrammarexercises6)______harderwestudy,______morewelearn.7)Thebusisrunningaboutseventymiles_____hour.8)Maryisinterestedin______science.9)Somepeopledon’tliketotalkat______table.10)LastnightIwentto______bedverylate.Thethe/an//PracticecountrysidepollutionpopulationspacetrafficOurworldisfacingmanyproblems.Twoofthebiggestaretheincreasingpopulationandpollution.The(1)__________oftheworldisincreasingquickly.Whyisthishappening?Becausemorebabiesareborneveryyearandpeoplealsolivelonger.populationPracticeCompletethepassagewiththewordsinthebox.Manypeopleareleavingthe(2)__________toworkinthecities,butthereisnotenough(3)_____forsomanypeople.Anotherhugeproblemfortheworldis(4)________.There’ssomuch(5)______ontheroadsthatinsomecitiestheairisheavilypolluted.Weshouldworkhardertoprotectourworld.countrysidespacepollutiontrafficPracticeallovertheworldclosedowninthefuturenot…anymoreittakes…全世界关闭；倒闭将来不再花费PracticeCompletethesentenceswiththeexpressionsinthebox.allovertheworldcloseddowninthefutureittakesnot…anymore1)Growingpopulationisaproblem

.2)ThepopulationofChinawillgrowmoreslowly

.allovertheworldinthefuturePractice3)Thesupermarket

whenabiggeroneopenedinthetown.4)Usually

anhourtogettherebybus.5)Thetownhadalotofpollutioninthepastbutitis

aproblem

.closeddownittakesnotanymorePractice

a)Itischeapertoshareacarthantohaveapersonalcar.b)Peopleinacarclubdonotoftentakebuses,trainsortheunderground.c)TherearenocarintheUS.d)Joiningcarclubisgoodforyouandforthecity.√Practice

Listenandchoosethebestsummary.1.Joiningacarclubischeaper/moreexpensivethanhavingapersonalcar.2.Peopleincarclubs

payfor/don’tpayforacarwhentheydrive.3.Peopleincarclubs

sometimes/nevertakeabusorrideabike.4.Peopleincarclubsprobably

are/arenothealthier.Practice

Listenagainandchoosethecorrectanswer.(1)Doyouliketoownacar?Whyorwhynot?(2)DoyouthinkcarclubswouldbepopularinChina?Why/whynot?Practice

Workinpairsanddiscussthisquestions.AroundtheworldWorldpopulationandwaterWithmoreandmorepeopleintheworld,moreandmorewaterisused.Infact,wateruseisgrowingmorethantwiceasfastastheworld’spopulation!Asaresult,gettinggood,cleanwaterisbecomingaprobleminmanyplaces.Practice

Alotofwaterispollutedandinmanyareaspeoplehavetowalkalongwaytogetcleanwaterfordailyuse.Morethan3.4millionpeopledieeachyearfromdrinkingandwashingwithpollutedwater.Solet’sdoeverythingwecantostopthepollutionandsavewater.Practice

Workingroups.Talkaboutwhatweshoulddotoprotectourwaterrecoursesindailylife.Practice

Groupwork1.

Withmoreandmorepeopleintheworld,moreandmorewaterisused.随着世界上的人越来越多，越来越多的水被使用。moreandmore意为“越来越多的”。

“比较级+and+比较级”表示“越来越……”。

“the+比较级,the+比较级”表示“越……，就越……”。e.g.Learningbecomesmoreandmoredifficultaswegetolder.随着年龄增长，学习变得越来越难。Practice

Languagepoints2.Asaresult,gettinggood,cleanwaterisbecomingaprobleminmanyplaces.因此，在许多地方获取优质而干净的水正在成为一个问题。asaresult意为“结果，因此”。e.g.Hegotuplatetoday.Asaresult,hemissedthefirstbus.他今天起晚了，结果错过了头班车。Practice

3.Morethan3.4millionpeopledie

eachyearfrom

drinkingandwashingwithpollutedwater.每年有超过340万人死于喝污染了的水和用污染了的水洗刷。

diefrom意为“死于”。e.g.Theoldmandiedfromacaraccident.那位老人死于一场事故。Practice

辨析：diefrom与dieofdiefrom表示“由于……而死”，主要指外伤、事故等外因或不明原因造成的死亡。dieof表示“因……而死”，主要指由饥饿、害怕、羞愧等内因造成的死亡。e.g.Insomeplaces,peoplediefromtrafficaccidents.在有些地方，人们死于交通事故。Shediedofhunger.她死于饥饿。Practice

Chooseacountryortownwhichinterestsyou.Itcouldbeyourhometown.Decidethepointsoftimeyouwanttolookat—forexample,now,tenyearsagoandtenyearsfromnow.Researchthepopulationofyourplaceinthoseyears.Writeyournotescarefully.ProductionWorkinpairs.Preparetomakeyourgraph.Decidehowyouwanttomakeyourgraph.Drawitandcolorit.Youcanalsomakeitonthecomputer.Labelitclearly.ProductionMakeyourgraph.ProductionWriteaparagraphtodescribeyourgraph.Presentyourgraphtotheclass.ProductionFillinthebankswiththecorrectformofthewordsandexpression.billionbirthfifthhugeincreasemakenotesofproblemreport1.Congratulationsonthe________