Howmanystudentsarethereinourclassroom?Thereare44students.Thereare3,000people.3,500,000Howmanypeoplearethereinourschool?Leshan?Lead-in2019.7-2020.11四川省安岳中學實習生Tips:1.個位與十位間一般要用連字符號“-”,2.十位與百位間用“and”。1220222222,222twelvetwentytwenty-twotwohundredandtwenty-twotwothousand,twohundredandtwenty-twoTrytoreadthemHowtoreadlargenumbersbillion十億million百萬thousand千朗讀數字時，倒著數，將每三位數看做一個單位。上例中的數字可以分解為...lion...thousand...，每個單位按照百、十、個位往后讀，遵循百位以內數字的讀法。1,140,840,230twohundredandthirtyeighthundredandfortythousandonehundredandfortymilliononebillion11408402301,140,840,230comma逗號1,340,000,000//threehundredandfortymilliononebillion1,234,567,890eighthundredandnintyfivehundredandsixty-seventhousandtwohundredandthirty-fourmilliononebillionLet'spractice.

2,31486,750,890

1,370,000,000onebillion,threehundredandseventymilliontwothousand,threehundredandfourteeneighty-sixmillion,sevenhundredandfiftythousand,eighthundredandninety80,000.27eightythousandpointtwoseven.27小數點讀:pointLet'spractice.3.5million1.37billion45.8million12.2billionthreepointfivemilliononepointthreesevenbilliononepointthreesevenbillionforty-fivepointeightmilliontwelvepointtwobillionHowmanystudentsarethere?3,500,000HowmanypeoplearethereinLeshan?Leshan?3million,5hundredthousandand5hundredthousandmapoftheworldWhichcountryhasthelargestpopulation?

China

What'sthepopulationofChina?point.,,,7,000,000,000

What’sthepopulationoftheworld?Thepopulationoftheworldisabout7billion(70億)thepopulationofChina1.37billion20%1/5onefifthtwentypercent20%中國1，375，000，000thepopulationoftheworld7billionc43.5million35million3.5million25.2millionThepopulationdistributionofsomeprovinces（省份人口分布）A:What'sthepopulationof…?B:XXhasthepopulationof...

Pre-listeningcPre-listening城市人口四川81,400,000廣東107,000,000山東980,000,000浙江550,000,000Pairwork??????重慶A:What'sthepopulationof…?B:ThepopulationofXXisabout...=

XX

hasthepopulationof...

1:Listenandchoosethecorrectanswer.(P72)1.What’sthepopulationofBeijing?a)About11millionb)About20millionc)About13million2.What’sthepopulationofChongqing?a)About28millionb)About33millionc)About36millionWhile-listeningSo_________hasthelargestpopulationinChina.ChongqinngTask1ThepopulationofChinaisincreasingsofast.增長growingsofast.194919601970198019902000201020202030161412108642850,000,0001,370,000,000Populationincreaseisabigproblem.[?n'kri?s]Thepopulationincreasecurve(曲線圖)ofChinaPopulationincresecauses

toomanyproblems.toomuch________noisetrafficwaterpollution

andairpollutiontoomuch________toomany_____people[n??z]噪音太吵啦！[p??lu??n]污染toomuch________rubbishChina'sp_____isgrowingsofast.populationTonyispreparingareport（報告）forit.ListenandanswerTonyispreparingareportcalled“”.A.OurgreatcountryB.OurgrowingpopulationC.Ourgrowingcountry2.Beijingisahugecitywith

.A.longhistoryB.manyoldpeopleC.largepopulation3.Populationincreaseisabigproblem

.A.inChinaB.inmanyothercountriesC.BothAandB4.Chinahas

oftheworld’spopulation.A.onefifthB.aquarterC.onethirdWhile-listeningTask2PeopleintheworldBabiesborneveryminute

BabiesborneveryyearPopulationofChinaPopulationoftheworldover250over131.4million1.37billion7billionNumberstorememberWhile-listeningTask3OurgrowingpopulationOurpopulationisgrowingfast.Beijingisa_____citywithalargepopulation.It______alotofproblems,________toomuchtrafficandnoise.Populationincreaseisabig_______inmanycountries.Over131.4_______babiesareborneveryyear.ThepopulationofChinaisabout1.37_______.That’salmostone________oftheworld’spopulation,about7billion.Butinthefuture,China’spopulationwon’t_____sofast,becausefamiliesaregettingsmaller.cause;suchas;huge;million;billion;fifth;grow;problemhugecausessuchasproblemmillionbillionfifthgrowTask4Post-listeningCompletethepassage.Post-listeningWhyChina’sfamiliesaregettingsmaller?Becauseofthefamilyplanningpolicy（計劃生育政策）.onechildpolicy獨生子女政策DINKfamily丁克家庭ThepopulationofChinais14.2billionin2020.Thepopulationisstillgrowing.two-childpolicy二胎政策(2016)Post-listening......trafficnoisetoomanypeopleairpollutionProblemsWhatshouldwedotosolvetheseproblems？

waterpollutionPopulationincreaseisabigproblem.Wecan'tchangeit.ProblemsSuggestionsairpollution&traffic1.It’sagoodideato_______2.Wecangotoschoolon___or_______.waterpollution&rubbish1.Don't_________intherivers.2.Weshould________.3.Don't_______________.planttrees.footbybikethrowrubbishsavewaterwastewat