外研 八年级 英语 上册 Module 9《Unit 1 The worlds population was about 7.8 billion in 2020》教学课件

Unit1Theworld’spopulationwasabout7.8billionin2020Module9Population1.Workinpairs.Lookatthepictureandtalkaboutit.Usethewordsintheboxtohelpyou.Listeningandvocabularycityshopnoisepeopletraffic范例：Thereistoomuchnoiseinthestreet.Therearemorepeopleintheworld.Thereissomuchpullutioninthecity.Thereisashopinourtown.Toomanycarsbringtrafficproblems.1.WhatisthepopulationofNewYork?a)About17million. b)About9million.c)About30million.2.WhatisthepopulationofTokyo?a)About4million. b)About28million.c)About14million.2.Listenandchoosethecorrectanswer.bcLingling:Whatareyoudoing?Tony:I’mpreparingareportcalled“Theworld’spopulation”.

①Lingling:Well,Icanhelp!Ijustwatchedavideoaboutworldpopulationyesterday.Itsaidtheworld’spopulationwasabout7.8billionin2020.②

Andthenumberwillclimbto8.5billionin2030.3.Listenandread.过去分词作后置定语温馨提示:此符号表示“考点精讲点拨”链接。Tony:Ican’tbelieveit!③

That’sahugenumber.Whichcountriesareseeingthemostpopulationgrowth?Lingling:ThelargestincreaseinpopulationwilltakeplaceinIndia,NigeriaandPakistan.

④By2030,Indiawillhaveabout1.5billionpeople.Tony:Hangonaminute!⑤

I’llmakesomenotes!n.增加；增长动词形式为grow，通常指数量、尺寸、力度等增长或增大Lingling:Whenpopulationsincreasetoofast,itcancauseproblems,suchastoomuchtrafficandnoise.⑥Tony:That’strue.Howaboutcountrieswithslow-growingpopulations?Lingling:Countrieswithlowbirthrateshaveproblemstoo.Therearen’tenoughpeopletodoallthejobs,orenoughyoungpeopletolookaftertheolderones.Tony:Isee.Great,thanksfortheinformation!NowIcanwritemyreport!动词不定式作定语修饰前面的名词

EverydayEnglish·Ican’tbelieveit!·Hangonaminute!·Great!Nowcompletethenotes.Populationoftheworldin2020:Populationoftheworldin2030:PopulationofIndiain2030:about7.8billion8.5millionabout1.5billion4.Choosethecorrectanswer.1.Birthhappensatthestart/attheendoflife.2.Hugemeanslarge/small.3.Anincreaseinpopulationmeansmore/fewerpeople.4.Hangonaminutemeanswaitingforashorttime/alongtime.5.Makingnotesmeanswritingalongpassage/afewwords.6.Aproblemissomethingeasy/difficult.7.Areportisalongpieceofwriting/afewwords.8.Abillionisahundred/athousandmillion.5.Listenandrepeat.8,742eightthousand,sevenhundredandforty-two2,463,128twomillion,fourhundredandsixty-threethousand,onehundredandtwenty-eight1,370,000,000onebillion,threehundredandseventymillion2,000,030,000twobillionandthirtythousand6.Prepareatalkontheworld’spopulation.Thinkaboutthequestions.·Whatisthepopulationoftheworld?·Howfastistheworld’spopulationgrowing?·Whataretheproblemsoffast-growingandslow-growingpopulations?·Whatelsedoyouknowabouttheworld’spopulation?Nowworkinpairsandgiveyourtalk.Thepopulationoftheworldwasabout7.8billionin2020.Thepopulationincreasestoofast.Fast-growingpopulationcausestoomuchtrafficandnoise.Therearen’tenoughpeopletodoallthejobsbecauseoftheslow-growingpopulation.Ialsoknowtheworld’spopulationwillclimbto8.5billionin2030.（答案不唯一，示例供参考）（1）prepare/prɪpeə/v.准备；预备prepare的常见搭配：·preparesth.准备某物·preparesth.forsb./sth.为某人/某事准备某物·prepareforsth.为某事做准备，相当于be/getreadyforsth.·preparetodosth.准备做某事知识点1I’mpreparingareportcalled“Theworld’spopulation”.e.g.Ihelpedmymotherpreparedinnerinthekitchen.我帮妈妈在厨房里准备晚饭。Wemustpreparearoomforourguest.我们必须为客人准备一个房间。Mybrotherispreparingforthephysicsexperimentexaminthelaboratory.我哥哥正在实验室里准备物理实验考试。Iwaspreparingtoleave.我正准备离开。可以作及物动词，也可以作不及物动词。DengQingmingfinallygotthechancetogotospaceafternearly25yearsofpreparation.经过近25年的准备，邓清明终于得到了去太空的机会。拓展：·过去式和过去分词：prepared·名词形式：preparation·preparation常用短语：makepreparationsforsth.为某事做准备makepreparationstodosth.为做某事做准备考题1：[扬州]Scienceismyfavouritesubject,soIhaveprepared________theSTEAMClub.A.joinB.joiningC.tojoinD.tojoining【点拨】preparetodosth.“准备做某事”，固定短语，所以用tojoin。C（2）report/rɪpɔːt/n.报告；汇报e.g.CouldyoutellmewhereMs.Liwillgiveusabookreport?你能告诉我李老师将在哪里给我们做读书报告吗？make/giveareport（onsth.）做一个（关于某事的）报告返回温馨提示:可返回原文考题2：

安静点，杰克！你姐姐正在她的房间里写报告。Bequiet,Jack!Yoursister_____________________inherroom.iswritingareportbillion/'bɪljən/num.十亿知识点2Itsaidtheworld’spopulationwasabout7.8billionin2020.相同用法的词还有hundred，thousand，million。billion前有具体数字时，要用原形，表示确切的数字。billion前无具体数字时，需要与of连用，表示概数，“数十亿的”。e.g.Atpresent,overonebillionpeoplespeakChineseintheworld.目前，全世界超过十亿人在讲中文。Billionsoftreesarecutdowneveryyeartomakepaperforhumans.每年有数十亿的树被砍伐来为人类造纸。考题3：[乐山改编]In2022,Indiahadmorethan1.412__________（十亿）people,andthelargepopulationcanbebothgoodandbadforIndia.billion返回believe/bɪliːv/v.相信，认为，料想believe后面可以接名词、代词或that引导的从句作宾语。知识点3Ican’tbelieveit!believe不用于进行时态e.g.Erictriedtoexplainwhyhewaslateforwork,buthismanagerdidn’tbelievehim.埃里克试图解释他上班迟到的原因，但他的经理不相信他的话。Idon’tbelievehe’sonly25.我认为他不止25岁。Doyoubelieveinyourself?你相信自己吗？Itisbelievedthatpeoplebornunderthesameanimalsignmayhavesimilarcharacters.人们相信在同一生肖下出生的人可能具有相似的性格。当宾语从句是否定句时，需要否定前移believe的常见用法:can’t/don’tbelievesth.不能/不相信某事believeinsb./sth.相信某人/物It’sbelievedthat人们相信believeitornot信不信由你考题4：[牡丹江]It’shardto____________（相信）atreecandevelopfromasmallseed（种子）.believe返回increase/'ɪŋkriːs/n.增大；增长/ɪn'kriːs/v.增大；增长知识点4ThelargestincreaseinpopulationwilltakeplaceinIndia,NigeriaandPakistan.反义词为decrease减少；降低Manycitieshaveadramaticincreaseinthepopulationagedover65.许多城市65岁以上人口急剧增加。havea(n)...increasein...在……方面有……增长☆作名词时，既可作可数名词，也可作不可数名词，表示“在某方面的增长”用介词in。increase作动词时的其他常见搭配：·increasein在……方面增长·increasewith随着……而增加increaseby与increasetoincreaseby后接倍数或百分数，表示“增加了……倍或增加了百分之……”。increaseto后接增长后的具体数字，表示“增加到……”。辨析：e.g.Thepopulationofourcityhasincreasedby40%comparedwiththatof3yearsago.我们城市的人口比三年前增加了40%。ItissaidthatthenumberofforestparksinGuangdonghasincreasedtomorethan1,000sofar.据说到目前为止广东森林公园的数量已经增加到1000以上了。考题5：（学科素养·科技自主）By2025,Chinaaimsto_____________（增长）itsproductionrateofChina-madechips（芯片）to70%.increase返回hangon稍等，等一会儿hangon常用于口语中，后可接aminute，amoment,awhile等词组。e.g.Hangon!I’llbebackinamoment.稍等！我马上就回来。知识点5Hangonaminute!hang的其他常见短语：·hangout闲逛·hangup挂断；把……挂起·hangtogether团结一致·hangback犹豫不决考题6：[天津建华中学期末考试]—Tom,it’stimetohavebreakfast.—________I’llbebackinawhile.A.Hangon. B.That’stoobad.C.Don’tbeafraid. D.Whatasurprise!【点拨】根据后面“I’llbebackinawhile.”可知这里是等一下。A返回（1）cause/kɔːz/v.造成；引起e.g.Lesssleepmaycauseworries,stressandunhappiness.睡眠不足可能会引起焦虑、压力和不快乐。Theheavyraincausedtheriverstorise.大雨引起河水上涨。知识点6Whenpopulationsincreasetoofast,itcancauseproblems,suchastoomuchtrafficandnoise.考题7：[菏泽改编]TheWorldHealthOrganization（WHO）hassaidthatoutdoorairpollution________about4.2milliondeathsaroundtheworldeachyear.A.usesB.happensC.causesD.providesCcause的常见搭配：cause(sb.)sth.（给某人）造成某事causesth.todosth.使某物做某事（2）problem/prɒbləm/n.麻烦；问题problem与questionproblem指需要研究解决的问题或难题，常与solve，cause，workon/out等连用。Thereareanumberofpossiblesolutionstotheproblem.这个问题有很多可能的解决方法。question指有疑问、需要回答的问题，常与ask，answer等连用。MayIaskyouaquestion?我可以问你一个问题吗？辨析：考题8：[本溪]Thankstotheteacher’shelp,Isolvedallthe________easily.A.chancesB.problemsC.habitsD.grades【点拨】考查名词辨析。chances机会；problems问题；habits习惯；grades成绩。根据“Thankstotheteacher’shelp,Isolvedallthe...”可知是在老师的帮助下，解决了所有问题。B（3）toomuch太多toomuch,muchtoo与toomanytoomuch形容词性短语，意为“太多”，中心词是much，常作定语，修饰不可数名词。名词性短语，意为“太多”，在句中作主语或宾语等。副词性短语，意为“太多”，作状语修饰动词。muchtoo副词性短语，意为“太；非常”，中心词是too，相当于very，修饰形容词或副词。toomany形容词性短语，意为“太多”，修饰可数名词复数。辨析：e.g.Don’teattoomuchmeat.别吃太多肉。Teenagersthesedaysdependontheirparentstoomuch.现在的青少年们太依赖他们的父母了。Theseshoesaremuchtootight.这双鞋太紧了。You’dbetternoteattoomanysweets.It’sbad