2023学年完整公开课版Thepopulationindevelopingcoun

Unit1TheChangingWorldTOPIC2ThepopulationindevelopingcountriesisgrowingfasterSECTIONBNewwords,phrasesandexpressionsNewwordsNewphrasesincrease,chart,luckily,population,increase,carryoutUsefulexpressions1.Whatalargepopulation!2.Anditisincreasingby80millioneveryyear.3.Soitis. 1aListen,readandsay

(Kangkangisreadingareportonpopulationinthenewspaper.)Kangkang:Wow!Whatalargepopulation!Maria:What?Kangkang:Look,itsaysworldhasapopulationof6.8billion.Anditisincreasingby80billioneveryyear.Maria:Mmm,that'sreallyalot.Whichcountryhasthelargestpopulation? 1aListen,readandsay

Kangkang:Chinahasthelargestpopulation.Ithasalreadyreached1.3billion,andIndiaissecondwith1.1billion.Maria:What'sthepopulationoftheUSA?Kangkang:309million.Maria:Oh,Isee.Itshowsthatthepopulationindevelopingcountriesislargerthanthatindevelopedcountries,doesn'tit? 1aListen,readandsay

Kangkang:Yes.What'smore,thepopulationindevelopingcountriesisgrowingfaster.Maria:Soitis.Thepopulationproblemhasbecomemoreseriousindevelopingcountries.Kangkang:Luckily,Chinahasalreadycarriedouttheone-childpolicytocontrolthepopulation.1bWorkalone

Listento1aandmatchtheinformation1.theworld2.China3.India4.theUSA

A.309millionB.6.8billionC.1.3billionD.1.1billion1cRead1aandfillintheblanks

Theworldhasapopulationof6.8billionanditisincreasingby

everyyear.

hasthelargestpopulation.Ithasalreadyreached

andIndiais

with1.1billion.Thepopulationindevelopingcountriesis

andisgrowing

thanthatindevelopedcountries.Luckily,ourcountryhascarriedoutthe

policytocontrolthepopulation.2.Listenandread973390898721435.71562600400171987645027685402346780823645804050000005555555555Lookatthenumbersandreadthem.1,000,000,000one

billion1.34one

point

threefour100one

hundred

1,000one

thousand1,000,000one

million十亿点Look543.7fivehundredandforty-threepointseven768sevenhundredandsixty-eight6004001sixmillion,fourthousandandone7198764502sevenbillion,onehundredandninety-eightmillion,sevenhundredandsixty-fourthousand,fivehundredandtwo1.34one

point

threefour100one

hundred

1,000one

thousand1,000,000one

million1,000,000,000one

billionListenandSay（录音）1.34one

point

threefour100one

hundred

1,000one

thousand1,000,000one

million1,000,000,000one

billion543fivehundredandforty-three3980threethousand,ninehundredandeighty98721ninety-eightthousand,sevenhundredandtwenty-one768540sevenhundredandsixty-eightthousand,fivehundredandfortySay1.34one

point

threefour100one

hundred

1,000one

thousand1,000,000one

million1,000,000,000one

billion5555555555fivebillion,fivehundredandfifty-fivemillion,fivehundredandfifty-fivethousand,fivehundredandfifty-five

2346780twomillion,threehundredandforty-sixthousand,sevenhundredandeighty405000000fortyhundredandfivemillion3.PairworkLookatthepopulationgraph(P12),thenmakethesimilardialogsaccordingtotheexample.Country

Population

China

IndiaTheU.S.AIndonesiaBrazil

3.Pairwork1.Whichofthese5countrieshasthelargest/smallestpopulation?What'sthepopulationofit?2.Whatcanyoutellfromthepopulationindevelopingcountriesandindevelopedcountries?3.Whatproblemsdoesthelargepopulationcause?4.Whatmeasuresdoyouthinkshouldbetakentocontrolthepopulation?指点迷津1.DoyouknowwhatthepopulationofChinawasin2005?询问某地的人口数应该用下列句型：What'sthepopulationof…？Howmanypeoplearethere…?What'sthenumberofpeople…?例如：印度的人口有多少？What'sthepopulationofIndia？HowmanypeoplearethereinIndia?What'sthenumberofpeopleinIndia?指点迷津Whatalargepopulation!人口真多啊！Population是名词，可以用large/big/small等形容词修饰；population作主语时，谓语动词常用单数形式；针对人口数量提问是，特殊疑问词用what.population(large\small)集合名词某地整体人口是多少(作单数)强调具体成员,某地的部分人口(作复数）

(e.g)Thepopulationofthiscityisnearly300000.这个城市的人口将近三十万。(e.g)80%ofthepopulationinChinaarefarmers.中国百分之八十的人口是农民。指点迷津2.Anditisincreasingby80millioneveryyear.它（世界人口）在以每年八千万的幅度增长。Increaseby意为“增加了，增长了”如：Thepriceofoilincreasedby2%.increaseby+倍数或百分数

(e.g.)Thecostoflivinghasincreasedbythreetimes.increaseto+具体数字

(e.g.)Thepriceofthehousehasincreasedto500000.300300300300350150500指点迷津3.Soitis.的确是这样的so+主语+be/助动词/情态动词，表示对上文情况的肯定和同意，意为“确实如此”。如：-Johnstudiesveryhard.-Sodoeshe.Exercises1.—____isthepopulationofIndonesia?—223million.A.HowmuchB.HowmanyC.WhatD.How2.Thereare______studentsinourschool.A.thr