Module 9 Population Unit 3-2 示范公開(kāi)課教學(xué)課件（外研版八年級(jí)上冊(cè)）

Module9PopulationUnit3Languageinuse2Warming-upWorkinpairsandtalkabouttheproblemsinyourhometown.冠詞分為不定冠詞a/an、定冠詞the和零冠詞三種，零冠詞指的是不用冠詞的情況。Presentation1.不定冠詞有兩個(gè)：a和an。a用在讀音以輔音音素開(kāi)頭的單詞前，an用在讀音以元音音素開(kāi)頭的單詞前，泛指“一個(gè)”。e.g.abook,anapple不定冠詞通常用于第一次出現(xiàn)的可數(shù)名詞單數(shù)前。

e.g.Thereisabagintheroom.Thebagisheavy.2.定冠詞the用來(lái)特指某人或某物，也用于第二次出現(xiàn)的名詞前。e.g.Ihaveanicecat.Thecatiswhite.Grammar3.零冠詞1)在三餐、學(xué)科、語(yǔ)言、球類(lèi)運(yùn)動(dòng)、棋類(lèi)游戲和娛樂(lè)運(yùn)動(dòng)的名稱(chēng)前，不加冠詞。e.g.havebreakfast/math/chemistry/basketball/chess2)在季節(jié)、月份、節(jié)日、假日、日期、星期等表示時(shí)間的名詞之前，不加冠詞。e.g.WegotoschoolfromMondaytoFriday.3)在表示人名，頭銜，職務(wù)，稱(chēng)號(hào)前，在地名，國(guó)名，城市，街道，標(biāo)題類(lèi)和字首為Mount的山及大多數(shù)湖泊的專(zhuān)有名詞前不用冠詞。e.g.MountBlanc(白朗峰)

LakeBaikal(貝加爾湖)Presentation4)

泛指、類(lèi)指的復(fù)數(shù)名詞，抽象名詞、物質(zhì)名詞表示一般概念時(shí)常不加冠詞。e.g.Booksaremybestfriends.5)前面已有物主代詞、指示代詞、不定代詞、數(shù)量詞等時(shí)不再用冠詞。

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…全世界關(guān)閉；倒閉將來(lái)不再花費(fèi)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.隨著世界上的人越來(lái)越多，越來(lái)越多的水被使用。moreandmore意為“越來(lái)越多的”。

“比較級(jí)+and+比較級(jí)”表示“越來(lái)越……”。

“the+比較級(jí),the+比較級(jí)”表示“越……，就越……”。e.g.Learningbecomesmoreandmoredifficultaswegetolder.隨著年齡增長(zhǎng)，學(xué)習(xí)變得越來(lái)越難。Practice

Languagepoints2.Asaresult,gettinggood,cleanwaterisbecomingaprobleminmanyplaces.因此，在許多地方獲取優(yōu)質(zhì)而干凈的水正在成為一個(gè)問(wèn)題。asaresult意為“結(jié)果，因此”。e.g.Hegotuplatetoday.Asaresult,hemissedthefirstbus.他今天起晚了，結(jié)果錯(cuò)過(guò)了頭班車(chē)。Practice

3.Morethan3.4millionpeopledie

eachyearfrom

drinkingandwashingwithpollutedwater.每年有超過(guò)340萬(wàn)人死于喝污染了的水和用污染了的水洗刷。

diefrom意為“死于”。e.g.Theoldmandiedfromacaraccident.那位老人死于一場(chǎng)事故。Practice

辨析：diefrom與dieofdiefrom表示“由于……而死”，主要指外傷、事故等外因或不明原因造成的死亡。dieof表示“因……而死”，主要指由饑餓、害怕、羞愧等內(nèi)因造成的死亡。e.g.Insomeplaces,peoplediefromtrafficaccidents.在有些地方，人們死于交通事故。Shediedofhunger.她死于饑餓。Practice

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