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1、Unit7Unit7What'sthehighestmountainintheworld?SectionA12a-2d学习目标：1.知识目标：掌握大数的读法。2.技能目标：熟练使用形容词的比较级和最高级介绍你所知道的名胜。3.情感目标：培养学生积极参与课堂活动的兴趣，了解我国的悠久历史，灿烂文化和大好河山。学习重难点：1.继续学习大数的读法。2.正确运用形容词和副词的比较级和最高级。预习提纲：写出下列数的读法：6,300：5,000：5,464：300：8，850：sixthousand,threehundred.fivethousand.fi
2、vethousand,fourhundredandsixty-four.threehundred.eightthousand,eighthundredandfifty.教学过程：Step1、Whichisthehighestmountainintheworld?WhichisthelongestriverinAsia?...…Talkaboutthesepicturesinpairs.Qomolangmaisthehighestintheworld.TheYangtzeRiveristhethirdlongestriverintheworld,
3、thefirstAsianrivers.TheCaspianSeaisthedeepestofallsaltlakeintheworld.TheSaharaisthebiggestdesertintheworld.Step2、2aListenandnumberthefacts(1-4)intheorderyouhearthem.6,3005,0005,464300___TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris___kilometerslong.___Chinahast
4、hebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover___yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.42132bListenagainandfillintheblanksin2awiththenumbersinthebox
5、.6,3005,0005,464300___TheYangtzeRiverisabout_______kilometerslongandtheYellowRiveris______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.6,3005,464___Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___
6、yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.5,000300中国的长城共有近一万公里，东起河北秦皇岛的山海关，西到嘉峪关，这是明代修筑长城的两个最大关口，北京境内的长城有600余公里，比较著名的有八达岭长城、金山岭长城、司马台长城、慕田峪长城、居庸关长城和箭扣长城等。TheGreatWallStep3、小组合作讨论2d部分，找出知识点，并完成下列问题.Guide：Feelfreetoaskmeanythingontoday’sGreatWalltour
7、.Tourist1：Howlongisthewall?Guide：Ah,themostpopularquestion!Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.Tourist2:Wow,that’samazing!Whydidtheancientemperorsbuildthewall?Guide:Themainreasonwastoprotecttheirp
8、artofthecountry.Asyoucansee，it’squitetallandwide.AsfarasIknow,therearenoman
