外研 八年級(jí) 英語(yǔ) 上冊(cè) Module 9《Unit 1 The worlds population was about 7.8 billion in 2020》教學(xué)課件

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.過(guò)去分詞作后置定語(yǔ)溫馨提示:此符號(hào)表示“考點(diǎn)精講點(diǎn)撥”鏈接。Tony:Ican’tbelieveit!③

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

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

I’llmakesomenotes!n.增加；增長(zhǎng)動(dòng)詞形式為grow，通常指數(shù)量、尺寸、力度等增長(zhǎng)或增大Lingling:Whenpopulationsincreasetoofast,itcancauseproblems,suchastoomuchtrafficandnoise.⑥Tony:That’strue.Howaboutcountrieswithslow-growingpopulations?Lingling:Countrieswithlowbirthrateshaveproblemstoo.Therearen’tenoughpeopletodoallthejobs,orenoughyoungpeopletolookaftertheolderones.Tony:Isee.Great,thanksfortheinformation!NowIcanwritemyreport!動(dòng)詞不定式作定語(yǔ)修飾前面的名詞

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，示例供參考）（1）prepare/pr?pe?/v.準(zhǔn)備；預(yù)備prepare的常見搭配：·preparesth.準(zhǔn)備某物·preparesth.forsb./sth.為某人/某事準(zhǔn)備某物·prepareforsth.為某事做準(zhǔn)備，相當(dāng)于be/getreadyforsth.·preparetodosth.準(zhǔn)備做某事知識(shí)點(diǎn)1I’mpreparingareportcalled“Theworld’spopulation”.e.g.Ihelpedmymotherpreparedinnerinthekitchen.我?guī)蛬寢屧趶N房里準(zhǔn)備晚飯。Wemustpreparearoomforourguest.我們必須為客人準(zhǔn)備一個(gè)房間。Mybrotherispreparingforthephysicsexperimentexaminthelaboratory.我哥哥正在實(shí)驗(yàn)室里準(zhǔn)備物理實(shí)驗(yàn)考試。Iwaspreparingtoleave.我正準(zhǔn)備離開?？梢宰骷拔飫?dòng)詞，也可以作不及物動(dòng)詞。DengQingmingfinallygotthechancetogotospaceafternearly25yearsofpreparation.經(jīng)過(guò)近25年的準(zhǔn)備，鄧清明終于得到了去太空的機(jī)會(huì)。拓展：·過(guò)去式和過(guò)去分詞：prepared·名詞形式：preparation·preparation常用短語(yǔ)：makepreparationsforsth.為某事做準(zhǔn)備makepreparationstodosth.為做某事做準(zhǔn)備考題1：[揚(yáng)州]Scienceismyfavouritesubject,soIhaveprepared________theSTEAMClub.A.joinB.joiningC.tojoinD.tojoining【點(diǎn)撥】preparetodosth.“準(zhǔn)備做某事”，固定短語(yǔ)，所以用tojoin。C（2）report/r?p??t/n.報(bào)告；匯報(bào)e.g.CouldyoutellmewhereMs.Liwillgiveusabookreport?你能告訴我李老師將在哪里給我們做讀書報(bào)告嗎？make/giveareport（onsth.）做一個(gè)（關(guān)于某事的）報(bào)告返回溫馨提示:可返回原文考題2：

安靜點(diǎn)，杰克！你姐姐正在她的房間里寫報(bào)告。Bequiet,Jack!Yoursister_____________________inherroom.iswritingareportbillion/'b?lj?n/num.十億知識(shí)點(diǎn)2Itsaidtheworld’spopulationwasabout7.8billionin2020.相同用法的詞還有hundred，thousand，million。billion前有具體數(shù)字時(shí)，要用原形，表示確切的數(shù)字。billion前無(wú)具體數(shù)字時(shí)，需要與of連用，表示概數(shù)，“數(shù)十億的”。e.g.Atpresent,overonebillionpeoplespeakChineseintheworld.目前，全世界超過(guò)十億人在講中文。Billionsoftreesarecutdowneveryyeartomakepaperforhumans.每年有數(shù)十億的樹被砍伐來(lái)為人類造紙?？碱}3：[樂山改編]In2022,Indiahadmorethan1.412__________（十億）people,andthelargepopulationcanbebothgoodandbadforIndia.billion返回believe/b?li?v/v.相信，認(rèn)為，料想believe后面可以接名詞、代詞或that引導(dǎo)的從句作賓語(yǔ)。知識(shí)點(diǎn)3Ican’tbelieveit!believe不用于進(jìn)行時(shí)態(tài)e.g.Erictriedtoexplainwhyhewaslateforwork,buthismanagerdidn’tbelievehim.埃里克試圖解釋他上班遲到的原因，但他的經(jīng)理不相信他的話。Idon’tbelievehe’sonly25.我認(rèn)為他不止25歲。Doyoubelieveinyourself?你相信自己?jiǎn)幔縄tisbelievedthatpeoplebornunderthesameanimalsignmayhavesimilarcharacters.人們相信在同一生肖下出生的人可能具有相似的性格。當(dāng)賓語(yǔ)從句是否定句時(shí)，需要否定前移believe的常見用法:can’t/don’tbelievesth.不能/不相信某事believeinsb./sth.相信某人/物It’sbelievedthat人們相信believeitornot信不信由你考題4：[牡丹江]It’shardto____________（相信）atreecandevelopfromasmallseed（種子）.believe返回increase/'??kri?s/n.增大；增長(zhǎng)/?n'kri?s/v.增大；增長(zhǎng)知識(shí)點(diǎn)4ThelargestincreaseinpopulationwilltakeplaceinIndia,NigeriaandPakistan.反義詞為decrease減少；降低Manycitieshaveadramaticincreaseinthepopulationagedover65.許多城市65歲以上人口急劇增加。havea(n)...increasein...在……方面有……增長(zhǎng)☆作名詞時(shí)，既可作可數(shù)名詞，也可作不可數(shù)名詞，表示“在某方面的增長(zhǎng)”用介詞in。increase作動(dòng)詞時(shí)的其他常見搭配：·increasein在……方面增長(zhǎng)·increasewith隨著……而增加increaseby與increasetoincreaseby后接倍數(shù)或百分?jǐn)?shù)，表示“增加了……倍或增加了百分之……”。increaseto后接增長(zhǎng)后的具體數(shù)字，表示“增加到……”。辨析：e.g.Thepopulationofourcityhasincreasedby40%comparedwiththatof3yearsago.我們城市的人口比三年前增加了40%。ItissaidthatthenumberofforestparksinGuangdonghasincreasedtomorethan1,000sofar.據(jù)說(shuō)到目前為止廣東森林公園的數(shù)量已經(jīng)增加到1000以上了?？碱}5：（學(xué)科素養(yǎng)·科技自主）By2025,Chinaaimsto_____________（增長(zhǎng)）itsproductionrateofChina-madechips（芯片）to70%.increase返回hangon稍等，等一會(huì)兒hangon常用于口語(yǔ)中，后可接aminute，amoment,awhile等詞組。e.g.Hangon!I’llbebackinamoment.稍等！我馬上就回來(lái)。知識(shí)點(diǎn)5Hangonaminute!hang的其他常見短語(yǔ)：·hangout閑逛·hangup掛斷；把……掛起·hangtogether團(tuán)結(jié)一致·hangback猶豫不決考題6：[天津建華中學(xué)期末考試]—Tom,it’stimetohavebreakfast.—________I’llbebackinawhile.A.Hangon. B.That’stoobad.C.Don’tbeafraid. D.Whatasurprise!【點(diǎn)撥】根據(jù)后面“I’llbebackinawhile.”可知這里是等一下。A返回（1）cause/k??z/v.造成；引起e.g.Lesssleepmaycauseworries,stressandunhappiness.睡眠不足可能會(huì)引起焦慮、壓力和不快樂。Theheavyraincausedtheriverstorise.大雨引起河水上漲。知識(shí)點(diǎn)6Whenpopulationsincreasetoofast,itcancauseproblems,suchastoomuchtrafficandnoise.考題7：[菏澤改編]TheWorldHealthOrganization（WHO）hassaidthatoutdoorairpollution________about4.2milliondeathsaroundtheworldeachyear.A.usesB.happensC.causesD.providesCcause的常見搭配：cause(sb.)sth.（給某人）造成某事causesth.todosth.使某物做某事（2）problem/pr?bl?m/n.麻煩；問(wèn)題problem與questionproblem指需要研究解決的問(wèn)題或難題，常與solve，cause，workon/out等連用。Thereareanumberofpossiblesolutionstotheproblem.這個(gè)問(wèn)題有很多可能的解決方法。question指有疑問(wèn)、需要回答的問(wèn)題，常與ask，answer等連用。MayIaskyouaquestion?我可以問(wèn)你一個(gè)問(wèn)題嗎？辨析：考題8：[本溪]Thankstotheteacher’shelp,Isolvedallthe________easily.A.chancesB.problemsC.habitsD.grades【點(diǎn)撥】考查名詞辨析。chances機(jī)會(huì)；problems問(wèn)題；habits習(xí)慣；grades成績(jī)。根據(jù)“Thankstotheteacher’shelp,Isolvedallthe...”可知是在老師的幫助下，解決了所有問(wèn)題。B（3）toomuch太多toomuch,muchtoo與toomanytoomuch形容詞性短語(yǔ)，意為“太多”，中心詞是much，常作定語(yǔ)，修飾不可數(shù)名詞。名詞性短語(yǔ)，意為“太多”，在句中作主語(yǔ)或賓語(yǔ)等。副詞性短語(yǔ)，意為“太多”，作狀語(yǔ)修飾動(dòng)詞。muchtoo副詞性短語(yǔ)，意為“太；非?！?，中心詞是too，相當(dāng)于very，修飾形容詞或副詞。toomany形容詞性短語(yǔ)，意為“太多”，修飾可數(shù)名詞復(fù)數(shù)。辨析：e.g.Don’teattoomuchmeat.別吃太多肉。Teenagersthesedaysdependontheirparentstoomuch.現(xiàn)在的青少年們太依賴他們的父母了。Theseshoesaremuchtootight.這雙鞋太緊了。You’dbetternoteattoomanysweets.It’sbad