人教版英语八年级下册Unit7 Whats the highest mountain in the world Section A 1a-2c.pptxVIP

Unit7What’sthehighestmountainintheworld?SectionA1a-2c

QomolangmatheNiletheSaharatheCaspianSea

QomolangmaTheNileTheCaspianSeaTheSahara

QomolangmaTheNileTheCaspianSeaTheSahara

QomolangmaTheNileTheCaspianSeaTheSahara

QomolangmaTheNileTheCaspianSeaTheSahara

9,600,0001,0256,6718,848.86Canyoureadtheselargenumbers?sixthousandsixhundredandseventy-oneonethousandandtwenty-fiveninemillionsixhundredthousandeightthousandeighthundredandforty-eightpointeightsix

1,034,507,890.12Howtoreadlargenumbers?pointthousandmillionbillionandandonetwo

9,600,000squarekilometers/km2insizeWhatgeographicalsitesarethenumbersabout?8,848.86metershighQomolangma1025theCaspianSeametersdeeptheNile6,671kilometerslongtheSaharatheNileQomolangmatheCaspianSeatheSahara

Matchthefactsyouknow.1aQomolangmatheNiletheCaspianSeatheSaharaabout9,600,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,848.86metershigh=indepth=inlength=inheight

1.长、宽、高、深、面积的表达方法Theriveris20meterswide.=Theriveris20metersinwidth.基数词+单位词+形容词（long,wide,high,deep等）基数词+单位词+in+名词（length,width,height,depth,size等）【拓展延伸】作定语时用合成词“数词-单位词单数–形容词”。This20-meter-longropeisn’tlongenoughtohelpclimbthemountain.

Qomolangmais_____________thananyothermountainsintheworld.TheSaharais_____________desertintheworld.TheCaspianSeais_______________ofallthesaltlakes.TheNileis_______________riverintheworld.higherthebiggestthedeepestthelongestListenandcompletethesentences.1b

2.Qomolangmaishigherthananyothermountainintheworld.比较级+thananyother+可数名词单数Point该结构意为“比其他任何一个……都……”，指同一范围内比较，表示最高级含义。Sheisthinnerthananyotherstudentinherclass.=Sheisthethinnestinherclass.other必不可少，用以将主语从比较对象中排除，避免逻辑矛盾。

【特别提醒】如果比较对象不在同一范围内或不属于同一类别，应用“形容词/副词比较级+thanany（任何的）+可数名词单数”。ThePacificOceanislargerthananylakeintheworld.练一练Hulu