2019年春八年级英语下册Unit7What’sthehighestmountainintheworld第1课时SectionA1a_2d课件.pptx

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1、Unit7What’sthehighestmountainintheworld?SectionA(1a-2d)任务一:根据Model,描述以下三大景观Qomolangma;8,844.43metershighModel:Qomolangmais8,844.43metershigh.Itisthehighestmountainintheworld.theNile;6,671kilometerslong1.TheNileis6,671kilometerslong.Itisthelongestriverintheworld.theCaspianSea;1,025metersdee

2、p2.TheCaspianSeais1,025metersdeep.It’sthedeepestlakeofallthesaltlakes.theSahara;about9,600,000squarekilometersinsize3.TheSaharaisabout9,600,000squarekilometersinsize.It’sthebiggestdesertintheworld.任务二:词组连线1.1,025metersdeep1025米深6,671kilometerslong6671千米长8,844.43metershigh8844.43米高剖析(1)此处为“

3、基数词+meters/kilometers+deep/long/wide/high”结构,表示某物有多深、多长、多宽、多高等。TheYellowRiveris5,464kilometerslong.黄河有5464千米长。Thestreetis10meterswide.这条街有10米宽。(2)数字的读法百位以上数字的表达方式1,000读作:a/onethousand10,000读作:tenthousand100,000读作:a/onehundredthousand1,000,000读作:a/onemillion1,000,000,000读作:a/onebillion比如:1,

4、234读作:onethousand,twohundredandthirty-four4,567,809读作:fourmillion,fivehundredandsixty-seventhousand,eighthundredandnine5,678,720,000读作:fivebillion,sixhundredandseventy-eightmillion,sevenhundredandtwentythousand2.Chinahasthebiggestpopulationintheworld.中国拥有世界上最多的人口。剖析population作名词,意为“人口,人口数量

5、”。population单独作主语时,谓语动词用第三人称单数形式。Thepopulationofthecityis300,000.这个城市的人口是30万。拓展①分数或百分数修饰population作主语时,谓语动词常用复数形式。Thirtypercentofthepopulationliveinthecity.30%的人口住在城市。②对人口的数量提问用what。What’sthepopulationofBeijing?北京的人口是多少?③表示某地有多少人口时用“haveapopulationof+数字”。Thetownhasapopulationofaboutfortyth

6、ousand.这个镇有大约4万人口。