仁愛版九年級(jí)上Unit1-Topic2-Section-B課件(共22張PPT)

SectionB（錄音）Unit1TheChangingWorld

Topic2Whichcountryhasthelargestpopulation?numbersinourlifeonehundredandfiftyyuantwothousandandeightOlympicGamesmillionsofstarssince(自從）650millionyearsagoaboutonebillion(1,000,000,000

)yearsoldtwopointtwosix(2.26)meterstall

1,000,000,000one

billion1.34one

point

threefour100one

hundred

1,000one

thousand1,000,000one

million十億點(diǎn)Look543.7fivehundredandforty-threepointseven768sevenhundredandsixty-eight6004001sixmillion,fourthousandandone7198764502sevenbillion,onehundredandninety-eightmillion,sevenhundredandsixty-fourthousand,fivehundredandtwo1.34one

point

threefour100one

hundred

1,000one

thousand1,000,000one

million1,000,000,000one

billionListenandSay（錄音）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

billion5555555

555fivebillion,fivehundredandfifty-fivemillion,fivehundredandfifty-fivethousand,fivehundredandfifty-five

2346780twomillion,threehundredandforty-sixthousand,sevenhundredandeighty405000000fortyhundredandfivemillionThereareabout1.3billionpeopleinChina.=Chinahasapopulationof1.3billion.What’sthepopulationofChina?A:What’sthepopulationofChina?B:It’sabout1.3billion.PairworkTalkaboutthechart6,500,000,000Whatalargepopulation!6.5billionThe

populationisincreasingby80millioneveryyear.808080Whichcountrieshavelargerpopula-tion,developingcountriesordevelop-edcountries?

Developingcountries.2.WhathasChinaalreadydonetocontrolthepopulation?

Chinahascarriedout

theone-childpolicy.1aListenreadandanswerA：Whata

largepopulation!Theworld…6.5billion.…80millioneveryyear.B：Whichcountry…?A：China…with…,andIndia…with….B：…theU.S.A.?A：296million.B：Itshows…developingcountries…developedcountries.A：…growfaster…B：Soitis.Thepopulationproblem…developingcountriesA：China…carryout…controlthepopulation.Actoutthedialog1.3billion__________________________________________________6575(miles)32million210million326(yuan)8844.43(meters)CanadaWorkaloneMountQomolangmadinosaur（錄音）SumupHowtoreadthenumbersinEnglishWhat’sthepopulationof…?increaseby

carryoutExercises1.—____isthepopulationofIndonesia?—223million.A.HowmuchB.HowmanyC.WhatD.How2.Thereare______studentsinourschool.A.threethousandsB.threethousandsofC.threethousandofD.threethousandCD1.完成同步練習(xí)冊(cè)SectionB。2.Talkaboutthetopicsa.WhydoesChinacarryouttheone-childpolicy?

b.Whatarethepopulationproblems?HomeworkGoodbye!population(large\small)集合名詞某地整體人口是多少(作單數(shù))強(qiáng)調(diào)具體成員,某地的部分人口(作復(fù)數(shù)）

(e.g)Thepopulationofthiscityisnearly300000.這個(gè)城市的人口將近三十萬。(e.g)80%ofthepopulationinChinaarefarmers.中國百分之八十的人口是農(nóng)民。backincreaseby+倍數(shù)或百分?jǐn)?shù)

(e.g.)Thecostoflivinghasincreasedbythreetimes.increaseto+具體數(shù)字

(e.g.)Thepriceofthehousehasincreasedto500000.300300300300350150500backcarryout

實(shí)行,進(jìn)行,執(zhí)行(e.g.)WewillcarryoutanewplantoimproveourEnglish.carry+代詞+out(e.g.)It’seasytocarryitout.back1.Chinahadapopulationof1.3

billionin2005.2.It’sabout6575milesfromBeijingtoToronto.3.MountQomolangmais8844.43metershi