Unit+7+Section+A+(1a-2c)教学课件-2023-2024学年人教新目标八年级英语下册.pptxVIP

Unit7What’sthehighestmountainintheworld?SectionA(1a-2c)人教版八年级下册

1.学会词汇:square,meter,deep,desert,population等；2.掌握大数的读法。1.通过听说训练，学习并掌握物体长宽高及面积的表达。2.能够熟练运用形容词和副词的比较级、最高级。通过比较，了解国家及世界“地理之最”，培养对祖国的自豪感，对大自然的热爱之情。了解中国及世界地理和自然，开阔视野，热爱大自然，热爱生活。

Let’straveltogether.

Itisthehighestmountainintheworld.Itishigherthananyothermountainintheworld.Stop1Qomolangma珠穆朗玛峰

Itisthelongestriverintheworld.Stop2theNile尼罗河Itislongerthananyotherriverintheworld.

Stop3theCaspianSea里海Itisthedeepestsaltlakeintheworld.Itisdeeperthananyothersaltlakeintheworld.

Stop4theSahara撒哈拉沙漠Itisthebiggestdesertintheworld.Itsbiggerthananyotherdesertintheworld.

QomolangmatheSaharatheCaspianSeatheNileThebeautyofthenatrue!Amazing!

Matchthefactsyouknow.1aQomolangmatheNiletheCaspianSeatheSaharaA.about9,000,000squarekilometersinsizeB.1,025metersdeepc.6,671kilometerslongD.8,848.86metershigh

Howtoreadlargernumbers?百百万千十亿twobillionandsixty-fivemillionsixhundredandninethousandninehundredandeightypointthreefour.billionmillionthousandhundred2,065,609,980.34billionmillionthousandpointthreefourandLet’slearn小窍门自右向左三逗分；一逗千(thousand)二逗百万(million)三逗十亿(billion)左右三位分开读；百位十位and连。这种方法你喜欢？

9,000,0001,0256,6718,848.86sixthousandsixhundredandseventy-oneonethousandandtwenty-five.ninemillioneightthousandeighthundredandforty-eightpointeightsix.Let‘sread

Describegeographicalfacts.QomolangmatheNiletheCaspianSeatheSaharaTheSaharaisabout9,000,000squarekilometersinsize.TheCaspianSeais1,025metersdeep.TheNileis6,671kilometerslong.Qomolangmais8,848.86metershigh.长、高、深、面积的表达结构：数字+单位词+adj.（long,high,deep...）=数字+单位词+in+n.（depth,length,height,size...）

MountainRiverSea/LakeDesertFeature(特点)MostLeasthighest/tallestlowest/shortestlongestshortestdeepestshallowestbiggestsmallestComparefactsWh