八年级下英语Unit7第一课时教案Unit7What’sthehighestmountainintheworld?SectionA1a-2d教学目标：1语言目标：掌握SectionA1a-2d部分重点词汇及能用比较级和最高级谈论各之最。2技能目标：能听懂和谈论有关地理、历史及自然的话题。培养听力和口语技能。教学重点：1短语:insize,intheworld,2metershigh/long/deep,thebiggestpopulation,oneofthebiggest,themostpopularquestion,talkabout,theancientemperors,themainreason,asfarasIknow,noman-madeobjects,2句子:-What’sthehighestmountainintheworld?-Qomolangma.-HowlongisQomolangma?-It’s8,844.43metershigh.It’shigherthananyothermountain.-Whichisthedeepestsaltlakeintheworld?-TheCaspianSeaisthedeepestofallthesaltlake.-DidyouknowthatChinaisoneoftheoldestcountriesintheworld?-Yes,Idid.It’smucholderthantheUS.教学难点：形容词和副词的比较级和最高级变化规则和用法。物体之间的对比。教学过程Step1Readingthewordsandexpressions.Qomolangma珠穆朗玛峰theNile尼罗河theCaspianSea里海（世界最大的咸水湖）theSahara撒哈拉沙漠theYangtzeRiver长江theYellowRiver黄河theMingDynasty明朝theMingGreatWall明长城squaren.平方metern.米deepadj.深的desertn.沙漠populationn.人口Asian.亚洲feelfree（可以）随便（做某事）tourv.n.旅行touristn.旅行者walln.墙amazingadj.令人大为惊奇的ancientadj.古代的protectv.保护，防护wideadj.宽的；宽阔和Step2Warming-up1.Lookatthesephotosandanswerthequestions:e.g.Whichisthehighestmountainintheworld?Whichisthelongestriverintheworld?WhichisthelongestriverinAsia?…Step3Matchthefactsyouknow.(1a)Practiceinpairsusingtheinformationin1a.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighStep4Explaination…8,844metershigh.8,844米高…metershigh(long,wide…)……米高（长,宽……)。英语表示“有多长（宽，高……）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。e.g.Thewallis1.7metreswide.Step5Listening1.1bListenandcompletethesentences.1)Qomolangmais______thananyothermountainintheworld.2)TheSaharais____________desertintheworld.3)TheCaspianSeais____________ofallthesaltlakes.4)TheNileis_________riverintheworld.2.2aListenandnumberthefacts(1-4)intheorderyouhearthem.2bListenagainandfillintheblanksin2awiththenumbersinthebox.6,3005,0005,464300___TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris___kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover___yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.Step6PracticeMakeconversationsinpairs(1c).ExamplesA:DidyouknowthatChinaifoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.Step7Roleplay2dandthinkaboutthequestions(2d):1)Whichisthebiggestman-madeobjectsintheworld？2)WhichisthemostfamouspartoftheMingGreatWall?Step8HomeworkA:Tomemorizetheimportantphrasesandsentences.B:tomakesomedialoguesaboutaskingthesizeofobjects.
