Module9Unit3课件八年级英语上册

Unit3LanguageinuseModule9PopulationRevisethenewwordsRevisionnoise,prepare,report,billion,huge,increase,notes,cause,problem,grow,birth,flat,rubbish,quiet,local,mention,pollution,solve,public,service,pupil,reduce,createWorkinpairs.Matchthecountrieswiththeirpopulationsin2020.1.Chinaa)5,084,0002.theUSb)25,690,0003.Australiac)331,698,0004.NewZealandd)1,411,780,000

RevisionReadyouranswerstoActivity1tothewholeclass.Chinahasapopulationof...RevisionNowlistenandcheck.one1two2three3four4five5six6seven7eight8nine9ten10eleven11twelve12thirteen13fourteen14fifteen15sixteen16seventeen17eighteen18nineteen191-19的基数词Grammar基数词twenty20thirty30forty40fifty50sixty60seventy70eighty80ninety90twenty-one21twenty-two22………………其它的十位数照此类推，如：thirty-one31forty-two42seventy-five75ninety-six9620—90等十位数百、千、万百hundred

100onehundred200twohundred

以此类推······千thousand1000onethousand2000twothousand英语里没有“万”这一单位，万也用thousand表示。如：10000tenthousand一万20000twentythousand两万4、十万、百万十万的说法是：100,000a(one)hundredthousand200,000twohundredthousandmillion百万

a(one)million1000000twomillion2000000········以此类推······8000000eightmillion在英语中，对于万以上的数字，我们改如何表达呢？这就要记住英语数字读法特点。以下面一个数字为例：6，500，431，729hundredthousandmillionbillion注意每三个数为一个单位，按照百、十、个向下读。大数字的表达方法英语分数的表示法：

用“基数词＋序数词”表示，其中基数词表示分子，序数词表示分母。分子除用one外，也可用a；如果分子大于1，分母要用复数形式。Twothirdsofthestudentshavepassedtheexam.

三分之二的学生考试及格了。注意：1／2不能说a（one）second，而要说a（one）half。

1／4和3／4可以说a（one）fourth和threefourths，但常用aquarter和threequarters表示。

若它们在句子中作主语，则谓语动词是用单数还是复数取决于名词，即与分数所修饰的名词保持一致。Abouttwothirdsofthestudentsattendthemeeting．大约2／3的学生都参加了会议。

Readthechartandanswerthequestions.Grammar1.Whichcityhadthelargestpopulationin2018?2.Whichcity’spopulationwillincreasethemostfrom2018to2030?3.Whichcitywillhavealargerincreaseinitspopulation,MumbaiorCairo?4.Whichcity/citiesdoyouthinkwillhavethebiggestpopulationproblem?Why?MexicoCityhadthelargestpopulationin2018.Dhakawillincreasethemostfrom2018to2030.Cairowillhavealargerincreaseinitspopulation.IthinkDhakawillhavethebiggestpopulationproblem,becauseitspopulationwillincreasethefastest.

冠词是一种虚词，没有词义，没有数和格的变化，不能单独使用，只能帮助名词或起名词作用的其他词类说明其意义。冠词有三种形式：不定冠词a(n),定冠词the和零冠词。定冠词特指某一特定名词，不定冠词泛指一般普通名词。零冠词是指名词前面没有不定冠词(a/an)、定冠词(the)，也没有其他限定词的现象。冠词的用法冠词的分类种类形式意义例词不定冠词a/an只能用在可数名词前,表示“一”的意思.a用在以辅音音素开头的单词前;而an用在以元音音素开头的单词前．adeskanhourahorseaneggahand定冠词the表示某一类或某个特指的人或物，可与名词的单,复数连用．themapthemantheearth一、不定冠词的用法。1.首次提到某人,不定冠词起介绍作用。

I’mpreparingsomenotesforareport.

我正在为一个报告准备笔记。2.表示“每一”的概念，相当于every。Igotothecinemaonceamonth.

我一个月去看一次电影。3.某些固定短语中，要用不定冠词。haveagoodtime,inahurry,haveabreak二、定冠词的用法。1.指前面提到过的人或物，或特指某人或某物。Ihaveadog.Thedogisbrown.2.指谈话双方都知道的人或物。Ihadtowritethesamereportlastterm!3.用于序数词以及形容词的最高级之前。Hewenttothefirstfloor.4.用于世界上独一无二的事物。Thesunisshiningbrightly.5.在江河、海洋、山脉等地理名词前及由普通名词构成的专有名词前。theGreatWallofChina6.用于表示方位名词前。GuangdongisinthesouthofChina.7.用在弹奏乐器中。Theboyisplayingthepiano.8.在某些形容词前加定冠词，表示一类人或物。Theoldaredancingontheplayground.9.在姓氏复数形式之前,表示“一家人”或“夫妇两人”。TheBrownsarereallyalargefamily.10.用于某些固定短语中。bytheway三、零冠词。1.在球类活动、学科名称前，以及节日、月份、星期前不用冠词。1stJuneisChildren’sDay.2.名词前已有指示代词、物主代词、不定代词或数词等作定语的名词前不用冠词。Ihaveseveralquestionstoask.3.在某些固定词组和习惯用语中不用冠词。bybusatnightintroubleMinais(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.Completethepassagewitha,anorthewherenecessary.anaGrammarathetheaaaa/1.WebelievetheschoolsinArnwickareverygood,andweareworkingtomakethemeven

________.2.Theirflatistoolargefortwopeople.Theywanttofinda________one.3.Annaalwaystalksaboutherideas.Ithinksheneedstolisten________.4.Therearealotofparksinthiscity.Ithinkthereare________parksinalotofothercities.Completethesentenceswiththecorrectformofthewordsinthebox.bettersmallermorefewerVocabularyfew

good

much

smallCompletethediagram.Usethewordsintheboxtohelpyou.aircityflatpublicserviceschooltrafficVocabularyProblemsReasonsSolutions●PeoplefromParkvillelivein______________________________________.●It__________________togotoschoolbybus.●____________________.●_______________________________________.●________________________________________.●________________________________________________________________________________.●____________________.●Thegovernmentismakingagreateffortto_______________________________________.◎____________________________________________________________.◎________________________________________.FromParkvilletoArnwick:problemsandsolutionsflatsoutsidethecentreofArnwicktakesanhourThereisairpollutionPeoplemovedtothecitytofindjobsItwasexpensivetoliveinthecitycentreParkvillebecamepartofArnwick,andthepopulationofArnwickbecameevenlargerThetrafficisbadsolveArnwick’sproblemswithbetterpublicservicesTherewillbemoreschools,sopupilswon’tneedtotravelfarThegovernmentisreducingairpollutionfromtrafficOurworldisfacingmanyproblems.Twoofthebiggestareincreasingpopulationandpollution.The(1)__________oftheworldisincreasingquickly.Manypeopleareleavingthe(2)__________toworkinthecities,butthereisnotenough(3)_______forsomanypeople.Anotherhugeproblemfortheworldis(4)_________.Thereissomuch(5)________ontheroadsthatinsomecitiestheairisheavilypolluted.Weshouldworkhardertoprotectourworld.Completethepassagewiththewordsinthebox.populationcountrysidespacepollutionVocabularycountrysidepollutionpopulationspacetraffictraffic1.Growingpopulationisaproblem__________________.2.Thepopulationoftheworldmaygrowmoreslowly______________.3.Thesupermarket_____________whenabiggeroneopenedinthetown.4.Usually__________anhourtogettherebybus.5.Thetownhadalotofpollutioninthepastbutitis_____aproblem________.Completethesentenceswiththeexpressionsinthebox.alloverthe