英语人教版八年级下册unit7课件.ppt

,Unit7Whatsthehighestmountainintheworld?,SectionA（1a-2b）,5/30/2020,Qomolangma珠穆朗玛峰,tumul:m,5/30/2020,TheNile,nail尼罗河,5/30/2020,kspin里海,TheCaspianSea,5/30/2020,TheSahara,sh:r撒哈拉沙漠,Askandanswer,DoyouknowhowhighQomolangmais?,Its8844.43metershigh.,eightthousandeighthundredandfortyfourpointfourthree,DoyouknowhowlongtheNileis?,Itsmorethan6671kilometerslong.,sixthousandsixhundredandseventyone,DoyouknowdeepTheCaspianSeais?,Its1,025metersdeep.,onethousandandtwentyfive,DoyouwhatsizeTheSaharais?,Itsabout9,600,000squarekilometersinsize.,ninemillionsixhundredthousand,1aMatchthefactsyouknow.,Presentation,基数词+单位词+形容(big/deep/long/high/tall）1、Im1.65tall.我1.65米高。2、这张桌子长1.20米。Thisdeskis1.20long.3、那条河深5米。Thatriveris5metersdeep.,1bListenandcompletethesentences.,1.Qomolangmais_thananyothermountainintheworld.2.TheSaharais_desertintheworld.3.TheCaspianSeais_ofallthesaltlakes.4.TheNileis_riverintheworld.,higher,thebiggest,thedeepest,thelongest,Role-playtheconversation,Teacher:Yesterday,welearnedsomeimportantgeographicalfacts(地理事实).Ihopeyouallstillrememberthem.Imgoingtotestyounowbyaskingafewquestions.First,whatsthehighestmountainintheworld?Boy1:Qomolangma!Itshigherthananyothermountainintheworld.Teacher:Thatsright.AndwhocantellmewhattheSaharais?Girl1:TheSaharaisthebiggestdesertintheworld.Teacher:Verygood.Andwhichisthedeepestsaltlakeintheworld?Girl2:TheCaspianSeaisthedeepestofallthesaltlakes.Teacher:Youreallsosmart!Now,forthelastquestion,whichisthelongestriverintheworld?Boy2:Iknow!TheNileisthelongestriverintheworld.Boy1:AndtheAmazon(亚马逊)isthesencondlongestriverintheworld.Teacher:Itseemsthatyouallknowtheanswerstoallmyquestions.Godjob!,theSahara,thebiggestdesertintheworld,theCaspianSea,thedeepestofallthesaltlakes,theNile,thelongestriverintheworld,Qomolangma,thehighestmountainintheworld,likethis:A:Whichplacedoyoulikebest?B:A:Whydoyoulikeit?B:Becauseitsintheworld.,1CPairwork,theSahara-thebiggestdeserttheCaspianSea-thedeepestsaltlaketheNile-thelongestriverQomolangma-thehighestmountain,5/30/2020,ThedifferencesbetweenChinaandtheUS,Chinaisoneoftheoldestcountriesintheworld.Itsover5,000yearsold.IthasmuchlongerhistorythantheUS.TheUSisnoteven300yearsold.Chinahasthebiggestpopulation(人口)intheworld.ItsalotbiggerthanthepopulationoftheUS.ChinaisalmostasbigastheUS.ButitisthebiggestcountryinAsia(亚洲).TherearetwofamousriversinChina.OneistheYangzeRiver,theotheristheYellowRiver.,MikecomesfromtheUnitedStates.HewantstoknowmoreaboutChina.Listentotheconversationbetweenhimandhisclassmates.Finish2a/2b.,listening,Listenandnumberthefacts(1-4)intheorderyouhearthem.,6,3005,0005,464300,_TheYangtzeRiverisabout_kilometerslongandtheYellowRiveris_kilometerslong._Chinahasthebiggestpopulationintheworld.ItsalotbiggerthanthepopulationoftheUS._Chinaisover_yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_yearsold._ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.,4,2,1,3,6,300,5,464,5,000,300,Listenagainandfillintheblankswiththenumbersinthebox.,2b:Lookatthesenumbersandtrytoreadthem.,6,3005,0005,464300,sixthousandthreehundred,fivethousandfourhundredandsixty-four,fivethoudsand,threehundred,Mike:Hi,ImMike.ImfromtheUnitedstates.Boy:Welcometoourclass,Mike.Werehappytomeetyou.Mike:CanyoutellmeabitmoreaboutChina?Girl:Sure!DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Mike:Yes,Idid.Itsmucholderthanmycountry-infact,theUnitedStatesisoneoftheyoungestcountriesintneworld.Itsnoteven300yearsold.Boy:AndChinahasthelargestpopulation,too.ItsalotbiggerthanthepopulationoftheUnitedStates.Mike:ButChinaisaboutthesamesizeastheUS,right?Girl:Yes,anditsthebiggestcountryinAsia.Wealsohavesomefamousrivers.TheYangtzeRiveristhelongestriverinAsia.Itsabout6,300kilometerslong.Mike:Wow,Ididntknowthat.IthoughttheYellowRiverwaslonger.Boy:No,theYellowRiveris5,400kilometerslong.ButbothriversareveryimportanttoChina.,Groupwork,Wha