人教版八级下Unit7SectionA1a~2d教案

Unit7What’sthehighestmountainintheworld?SectionA(1a~2d)教学目标【知识与技能】1.语言目标：掌握本单元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和自然的话题。【情感、态度与价值观】培养学生热爱大自然，保护环境的意识。教学重难点【教学重点】1.学会使用比较级、最高级。2.正确使用有关原级、比较级、最高级的句型。【教学难点】1.不规则形容词、副词的比较级和最高级形式，尤其是多音节形容词及副词。2.灵活运用比较级、最高级谈论自然景观。教学准备图片、视频、多媒体等教学过程Step1WarmingupStep1Presentation1.Newwords:squaren.平方metern.米deepadj.深的desertn.沙漠populationn.人口populationn.人口Asian.亚洲tourv.n.旅行touristn.旅行者walln.墙amazingadj.令人大为惊奇的ancientadj.古代的wideadj.宽的；宽阔和2.Showsomepicturesandinformationofthehighestmountain,thelongestriver,thebiggestriver,thebiggestlakeandthebiggestdesertintheworld.Step2Warmingup1.Watchthephotosandtalkaboutthem“Howbig/high/long/bigis…?’andhelpthestudentstoanswer:It’s…meters/kilometers/cmbig/high/long/big.2.Lookthesephotosandpracticethedialogue:e.g.A:HowhighisQomolangma?B:It’s8,844.43metershigh.Step31aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighStep4Explanation…8,844.43metershigh.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。.Thewallis1.7metreswide.Step5Practiceinpairsusingtheinformationin1a.1.A:Whichisthehighestmountainintheworld?B:It’sQomolangma.2.A:HowhighisQomolangma?B:It’s8,844.43metershigh.Step6Listening1.1bListenandcompletethesentences.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.Step7Practice2cMakeconversationsinpairs.ExamplesA:DidyouknowthatChinaifoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.Step82d1.Readtheconversationandanswerthequestions:1)Whichisthebiggestman-madeobjectintheworld？2)WhichisthemostfamouspartoftheMingGreatWall?2.Role-playtheconversation.Step9Languagepointsandsummary1.Chinahasthebiggestpopulationintheworld.中国是世界人口最多的国家。population意为“人口”时，是一个集合名词。它在句中作主语时，谓语动词通常用单数形式。其常用句型为“Thepopulationof+某地+is+数词”或“某地+hasapopulationof+数词”，表示“某地有多少人口”。如：Thepopulationofmycityisthreemillion.◆当表示人口“多”或“少”时，常用形容词large，big或small修饰population。如：Thetownhasalarge/big/smallpopulation.◆当对人口数量进行提问时，要用疑问词what或howlarge。如：

What/Howlargeisthepopulationofyourcountry?【运用】完成句子，每空一词。(1)这个国家人口少。Thecountry__________________.(2)我的家乡有100万人口。Myhometown_______________onemillion.(3)北京有多少人口？_____________________Beijing?2.Feelfreetoaskmeanythingontoday’sGreatWalltour.在今天的长城游中，大家尽管问我任何问题，不要拘束。feelfree是英语口语中一个常用表达。若有人让你feelfreetodosomething,就是让你无需拘束，只管按照自己的意愿去做某事。.A:CanIuseyourbathroom?我可以用一下你的卫生间吗？B:Yes,feelfree.可以，请随意。3.AsfarasIknow,therearenootherman-madeobjectsasbigasthis.据我所知，再没有像它这样大的人造物体了。1)asfarasIknow是一个固定的表达方式，还可以说sofarasIknow,意思是“据我所知”。.AsfarasIknow,Jack’sgottwinsisters.就我所知，杰克有一对孪生姐妹。They’renotcomingtoday,sofarasIknow.他们今天不来了–就我所知是这样的。2)句中man-made是一个合成形容词，意为“人造的”。像这样与-made复合而成的形容词不止一个。用以描述产品的生产或制造手段，特点等，常见的有：handmade—手工制作的homemade—家庭制作的machine-mad