***Module9PopulationUnit3LanguageinuseLanguagepractice1.Beijingisahugecity.2.Ittakesanhourtogettherebybus.3.That’salmostonefifthoftheworld’spopulation.4.Thatmakesover131.4millionbirthsayear.1.不定冠词a/an的用法：1)a用以辅音音素开头的单词前，an用以元音音素开头的单词前。例如：abook,atable,anelephant,anorange2)表示数量“一”，意思与“one”接近，但数的概念没有one强。例如：Thelittlegirlplayedawholedayoutside.这个小女孩在外面玩了一整天。3)用于首次提到的某人或某物前，表泛指。AteacherfromEnglandwillteachusEnglish.一位来自英格兰的教师将教我们英语。4)用于可数名词的单数前，表示一类人或物。Atigerisverydangerous.老虎很危险。5)表示某类人或事物当中的任何一个，相当于one。泛指人或事物的类别。例如：Heisaballplayer.他是一位棒球手。6)表示“每一个”，相当于every。用在表示时间，速度，价格的名词前。Youshouldtakethismedicinethreetimesaday.你应该每天服三次药。7)表示“某一”。AMr.Wangiswaitingforyou.一位姓王的先生在等你。2.定冠词the的用法:定冠词是指特定的人或物，用于特指的名词前。例如：Thebookismine.这本书是我的。2)表示上文提到的或说话双方都知道的人或物。例如：Iheardareport.Thereportwasaboutwar.我听了一个报告，这个报告是关于战争的。Pleaseclosethewindowbeforeyoufallasleep.请在睡觉之前关上窗子。3)用于序数词、形容词最高级以及对两者进行比较时起特定作用的比较级前。例如：Ourclassroomisonthesecondfloor.It’sthemostinterestingbookIhaveread.Ihavetwosisters.Theelderoneisadoctor.4)世界上独一无二的事物前常用the。例如：Themoongoesroundtheearth.5)在姓的复数形式前加the，表示一家人或夫妇二人。例如：theGreens格林一家人或格林夫妇。6)用于某些形容词前表示一类人或事物。therich,thepoor,theold7)用于江河、山脉、湖泊、岛屿、杂志和报纸等专有名词前。例如：theChangjiangRiver,theGreatWall,theSummerPalace8)用于由普通名词构成的专有名词前。例如：theUnitedStates9)用于乐器名称前。例如：playthepiano/violin10)用于固定短语中。例如：atthemoment,bytheway,inthemiddleof3.零冠词的用法一般来说，在一个句子中有时不加冠词，如Wegotoschoolbybus.这种不加冠词的现象，就叫“零冠词”。复数可数名词前，表示人或物的类别，或泛指不定量的人或物。例如：Horsesareusefulanimals.Therearepensandbooksonthedesk.2)当名词前有物主代词、指示代词、不定代词及名词所有格等修饰时。例如：Sheisourmathteacher.ThemaninblueisMary’sfather.Noonecangetthisbook.3)交通工具、学科名词前。byboat,onfootIlikechemistry.4)球类运动、棋类游戏及语言名称前。Hepreferstoplayfootball.Thetwooldmenareplayingchess.CanyouspeakEnglish?5)季节、月份、星期、节日、一日三餐等名词前。例如：inspring,onMondayChildren’sDayiscoming.Iatesomenoodlesforlunch.6)某些固定搭配的词组。inpublic;gotobed1.Workinpairs.Matchthecountrieswiththeirpopulations.a)1,370,537,000b)314,791,000c)22,956,000d)4,437,0001.Australia2.NewZealand3.China4.theUS4.Completethepassagewitha,anorthewherenecessary.Minais(1)____eighteen-year-oldgirl.Shehasgot(2)___brotherand(3)____sister.Minais(4)____oldestchildin(5)___family.Shelivesin(6)___verybigcity.Shehas(7)____jobin(8)____hotel.Shehopesthatonedayshewillhave(9)___chancetogoto(10)______college.atheaaaanathethe/1.WebelievetheschoolsinArnwickareverygood,andwe’reworkingtomakethemeven_____.2.Theirflatistoolargefortwopeople.Theywanttofinda______one.3.Annaalwaystalksaboutherideas.Ithinksheneedstolisten_____.4.Therearealotofparksinthiscity.Ithinkthereare_____parksinalotofothercities.5.Completethesentenceswiththecorrectformofthewordsinthebox.bettersmallermorefewerfewgoodmuchsmall7.Completethepassagewiththewordsinthebox.Ourworldisfacingmanyproblems.Twoofthebiggestaretheincreasingpopulationandpollution.The(1)__________oftheworldisincreasingquickly.Whyisthishappening?Becausemorebabiesareborneveryyearandpeoplealsolivelonger.Manypeopleareleavingthe(2)___________toworkinthecities,butthereisnotenough(3)_____forsomanypeople.populationcountrysidespacecountrysidepollutionpopulationspacetrafficAnotherhugeproblemfortheworldis(4)_________.There’ssomuch(5)______ontheroadsthatinsomecitiestheairisheavilypolluted.Wemustworkhardertoprotectourworld.trafficpollution12.Workingroups.Preparetomakeyourgraph.·Chooseacountryortownwhichinterestsyou.Itcouldbeyourhometown.·Decidethetimeyouwanttolookat—forexample,now,tenyearsagoandtenyearsfromnow.·Researchthepopulationofyourplaceinthoseyears.Writeyournotescarefully.13.Makeyourgraph.·Decidehowyouwanttomakeyourgraph.·Drawitandcolourit.Youcanalsomakeitonthecomputer.·Labelitclearly.用不定冠词a/an,定冠词the或“/”填空1.Ifound_____bookonthefloor.Ithink_____bookisJenny’s.2._____Sunismuchbiggerthan_____Earth.3.Lucyis_____mostcarefulstudentinmyclass.4._____GreensarewatchingTVnow.5._____orangeisorange.6.We’llgoto_____GreatWallnextweek.atheThethetheThetheAnHomeworkWriteaparagraphtodescribeyourcity.Allthingsaredifficultbeforetheyareeasy.凡事总是由难而易。