Unit7SectionA(1a-1c)课件人教版八年级英语下册

Unit7What’sthehighestmountainintheworld?SectionA1a-1cLearnthefollowingkeywordsandphrases:square,meter,deep,desert,population,Asia,ancient,tour,tourist,amazing,

protect,wide,feelfreetodosth.,asfarasIknow…Let’sreviewone；two；three；four；five；six；seven；eight；nine；tenHowtoreadthesenumbers？1-1030655887917thirtysixty-fivefifty-eighteighty-sevenninehundredandseventeenReadthenumbersbelow.9,600,0008,848.86352,478,873,467,823Likethese:Howtoread?1,0259,600,0008,848.866,671Doyouknowthesenumbers?about9,000,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,848.86metershighQomolangma喜马拉雅1,0259,600,0008,848.866,6711,0259,600,0008,848.866,671theNile尼罗河1,0259,600,0008,848.866,671theCaspianSea里海1,0259,600,0008,848.866,671theSahara撒哈拉Matchthefactsyouknow.1aQomolangmatheNiletheCaspianSeatheSaharaabout9,000,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,848.86metershigh1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis____________riverintheworld.higherthebiggestthedeepestthelongest意为“……比其他任何一个……都……”比较级+thananyother+可数名词单数=比较级+thantheother+可数名词复数=是最...的=形容词最高级+可数名词单数Teacher:

Yesterday,welearnedsomeimportantgeographicalfacts.I

hopeyouallstillrememberthem.I’mgoingtotestyounow

byaskingafewquestions.First,what’sthehighestmountainintheworld?Boy1:Qomolangma!It’shigherthananyothermountainintheworld.Teacher:That’sright.AndwhocantellmewhattheSaharais?Girl1:TheSaharaisthebiggestdesertintheworld.

TapescriptsTeacher:Verygood.Andwhichisthedeepestsaltlakeintheworld?Girl2:

TheCaspianSeaisthedeepestofallthesaltlakes.Teacher:You’reallsosmart!Now,forthelastquestion,whichisthelongestriverintheworld?Boy2:Iknow!TheNileisthelongestriverintheworld.Boy1:AndtheAmazonisthesecondlongestriverintheworld.

Teacher:

Itseemsthatyouknowtheanswerstoallmyquestions.Goodjob!所有问题的答案好像....1cMakeconversations.Whatisthehighestmountainintheworld?Qomolangma.Whatis__________________intheworld?TheSahara.biggestdesertWhatis_____________________intheworld?TheCaspianSeaTheNile.____________________________________?thed