外研版八年级上册M9Unit 2

Unit2Module91.Howmanybabiesareborneveryminute?2.Howmanybabiesareborneveryyear?3.What’sthepopulationofChina?4.What’sthepopulationoftheworld?RevisionChinahasthelargestpopulationintheworld.Thepopulationproblemisoneofthemostseriousproblemsintheworldtoday.Ifpopulationgrowstoofast,whatwillbringtotheworld?What’sthebadeffectofoverpopulation?foodshortagewatershortagecityproblemspollutionBadeffectsWaterShortage约占世界人口总数40%的80个国家和地区严重缺水。目前，全球80多个国家的约15亿人口面临淡水不足，其中26个国家的3亿人口完全生活在缺水状态。预计到2025年，全世界将有30亿人口缺水，涉及的国家和地区达40多个。Thesearenottruesnows.Theseareplasticbags.白色污染(WhitePollution)是人们对难降解的塑料垃圾(多指塑料袋)污染环境现象的一种形象称谓。它是指用聚苯乙烯、聚丙烯、聚氯乙烯等高分子化合物制成的各类生活塑料制品使用后被弃置成为固体废物，由于随意乱丢乱扔，难于降解处理，以致环境严重污染的现象。Sometimescolorfulthingsareakindofburden!Tomorrow’smountainOverpopulationmakesthetrafficcrowded.Itmakestheenvironmentterrible.Sowemusttryourbesttocontrolthepopulation.Wheredoyouprefertolive,inaquietcountryvillageorabigcity?Why?Workinpairsandanswerthequestions.Usingthewordsintheboxtohelpyou.countrysidefieldflathospitaljobofficerubbishvillageBecausetheywanttolookforjobsandhaveabetterlife.1.Whydopeoplemovetocities?2.Whataretheproblemsofbigcities?Pollution,crime,loneliness,rubbishcollectionandsoonaretheproblemsofcities.Listentothepassageandcheckthetruesentences.1.Parkvillewasaquitevillage.2.Arnwickwasacitywith20,000people.3.Parkvillenowhasapopulationofmorethanonemillion.4.ThelocalschoolinParkvillehas2,000pupils.5.Bigcitiesneedmoremoneyforpublicservices.√√××√Readandanswerthequestions.WhatwasParkvillelikewhenJo’sgrandparentsfirstcametoParkville?2.WhatisArnwick?3.WhatisParkvillenow?Itwasaquietcountryvillage.ItisacitynearParkville.ItisapartofArnwick,withoveramillionpeople.4.WhydidpeoplemovetothebigcityArnwick?5.HowlongdoesittakeJotogotoschoolnow?Becausepeoplewantedtofindjobsthere.Ittakesanhourbybus.Para.1Para.3Para.4Para.5Para.2Newproblems.Thelessonwegotfromthestory.C.TheoldParkville.D.Thenewneeds.E.ThechangesinParkville.Readthepassageagainandmatchtheheadingswiththeparagraphs.WheredidtheyliveinParkville?Theylivedinasmallhouse,closetofieldsandhills.Para.1TheoldParkville.WasParkvillefarfromArnwick?2.WhywerebuildingsbuiltoutsidethecentreofArnwick?3.WhatproblemsdoesJo’sfamilyhavetoliveinaflat?No,itwasnearArnwick.Para.2ThechangesinParkville.BecauseitwasexpensivetoliveinthecentreofArnwick.Itisverycrowded,andrubbishisalsoaproblem.Thesmalllocalschoolisstillopen.2.ThenewschoolisclosetoJo’shome.3.Thelongerjourneyhasalotoftrafficandpollution.closeddown.farfromPara.3Newproblems.Trueorfalse.FFTPara.4Newneeds.Arnwickneedsmoreschools,busesand__________.Itneedsfreshair,cleanwater,andbetter____________.Itneedsmore________toprotectpeople.Itneeds___________todoallthesethings.Fillintheblanks.hospitalspublicservicemoremoneypolicePara.5Thelessonwegotfromthestory.Whatdoesthewriterwanttotellus?Populationincreaseisabigprobleminbigcities.Pollution,rubbishcollection,trafficandsoonaretheproblemsofcities.WeshouldprotectourEarth.Parkville(aquietvillage)

PeoplemovedtoArnwick.Parkville(becamepartofArnwick)Arnwickbecamelarger.Newproblems(education,traffic,pollution…)Morethingsneeded(school,buses,hospitals,freshair,cleanwater,police,moremoney…)Retellthestoryaccordingtotheclue.Wheredoyoulive,inavillage,atownoracity?Whatproblemsdoyouthinkyourhometownhas?Canyougivesomeadvice?FreetalkDoyouhaveanyideasofsolvingtheseproblems?Readandchecktheproblemsthatexistinyourhometown.()1.Manyyoungpeoplewanttoleavethecountrysidebecausetheywanttofindjobsinthecity.()2.Therearenotenoughschoolsandhospitalsinbigcities.()3.Toomuchtrafficbringsairpollution.Writing()4.Thereistoomuchrubbishinthestreets.()5.Therearenotenoughpoliceinthecity.()6.Itisdifficulttogetenoughcleanwater.Writeaboutaproblemyourhometownhas.Writedownyoursuggestionstosolvetheproblem.ProblemOpinionsandreasonssuggestions

ProblemOpinionsandreasonsSuggestionsManyyoungpeoplewanttoleavethecountrysidebecausetheywanttofindjobsinthecity.Thisisabigproblemforthecountrysideandcity.Moreandmoreyoungpeoplecrowdintocities,sotherearefewpeopleworkinginthecountryside.Meanwhile,therearesomanypeopleinthecitiesthatsomemaynotfindajob.Itmaybebettertobuildmoreuniversitiesandcreatemorejobsinsmallertownsinthecountryside,soyoungpeoplewillfinditmoreinterestingtostay.ProblemOpinionsandreasonsSuggestionsToomuchtrafficbringsairpollution.

Thisisanationalaswellasaninternationalproblem.Governmentsineverycountrydonotdoenoughto