Unit7 Section A 2a-2d 课件-人教版八年级英语下册

Unit7What'sthehightestmountainintheword?Period2SectionA(2a-2d)接龙幻灯片上数字出现时，同学应迅速读出。每人一个，按行/列依次接龙，5秒内说不出，此行/列同学即失去此答题机会，下一行/列同学接续。Leadin8,8505,0006,3001,0258844.435,4646,6719,600,000300Objectives1.Masterthenewwordsandphrases:population,Asia,feelfree,tour,tourist,wall,amazing,ancient,protect,wide,asfarasIknow2.ToimproveSs'listeningskill.3.Beabletotalkaboutgeographyandnature.Self-learning1.Self-learnthenewwordsandphrasesonpage50.2.Haveacheck.WordsReviewpopulationAsiafeelfreetourtouristwallamazingancientprotectwideasfarasIknowman-maden.人口数量n.亚洲（可以）随便（做某事）n.&v.旅行；旅游n.旅行者；观光者n.墙adj.令人大为惊奇的；令人惊喜的adj;古代的；古老的v.保护；防护adj.宽的；宽阔的就我所知adj.人造的2aListenandnumberthefacts[1-4]intheorderyouhearthem._____TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris________kilometerslong._____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.6,3005,0005,46430042_____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_________yearsold._____ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.13_____TheYangtzeRiverisabout_________kilometerslongandtheYellowRiveris________kilometerslong._____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.Listenagainandfillintheblanksin2awithnumbersinthebox.2b6,3005,4646,3005,0005,46430042_____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven______yearsold._____ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.135,000300Makeconversationsusingtheinformationin2a.2cA:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.A:DidyouknowthatYangtzeRiveristhelongestriverinChina?B:Yes,Idid.It’s6,300meterslong.A:Wow!That’slong!A:DidyouknowthatChinahasthebiggestpopulationintheworld?B:Yes,Idid.It’salotbiggerthanthepopulationoftheUS.A:Wow!That’samazing!Guide：Feelfreetoaskmeanythingontoday’sGreatWalltour.Tourist1：Howlongisthewall?Guide：Ah,themostpopularquestion!Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.2dRole-playtheconversation.Tourist2:Wow,that’samazing!Whydidtheancientemperorsbuildthewall?Guide:Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee，

it’squitetallandwide.AsfarasIknow,therearenootherman-madeobjectsasbigasthis.Tourist3:IsBadalingpartoftheMingGreatWall?Guide:Yes,it’sthemostfamouspart.Pleasereadtheconversationin2d.What’stheconversationabout?It’saboutatourtotheMingGreatWall.Readagainandanswerthequestionsin2d.1.HowlongistheMingGreatWall?2.Whatdoestheguidesayaboutthewall?It’sabout8,850kilometerslong.It’squitetallandwide./It’sthelongestwallintheworld.…Languagepoints表示物体长、宽、高、深的表达法用“数次+单位名词+形容词（long,wide,high,deep等）”来表示，如果数字大于1，名词要用复数形式。200metershigh200米高1.1,025metersdeep：深1025米Exploration8,844.431,0256,600,0006,211.313,219metershigh

metersdeepsquarekilometersinsizekilometerslongkilometerswide

基数词+单位词+形容词平方千米/公里长的宽的高的深的面积/体积大小的

物体长，宽，高的表达法

基数词>1,单位名词用复数

物体长，宽，高的表达法

基数词+单位词+in+

名词

基数词+单位词+形容词long,wide,high,deeplength,width,height,depth表示人口“多”要用large或big；表示人口“少”要用small。Chinahasthelargestpopulationintheworld.2.population：意为“人口数量”，“人口”，是一个集合名词.population常与定冠词the连用,作主语用时,谓语动词常用第三人称单数形式。Theworld’spopulation___increasing__________________.全世界的人口增长得越来越快。ThepopulationofChinaisabout1,300,000,000.中国人口大约有13亿。fasterandfasteris当主语是表示“人口的百分之几、几分之几”时,谓语动词用复数形式。eg:中国大约有百分之七十的人口是农民。AboutseventypercentofthepopulationinChinaarefarmers.

询问某国、某地有多少人口时,

“Howlarge...?”;在问具体人口时用“What...?”。你们家乡有多少人口?

加拿大的人口数是多少?

Howlargeisthepopulationofyourhometown?

WhatisthepopulationofCanada?Practice这个城市的人口是600万。Thepopulationofthiscityissixmillion．中国的人口比美国的人口多很多。ThepopulationofChinaismuch

largerthanthatoftheUSA.3.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?thatChinais…是know的宾语从句。尽管主句的动词是过去时态，但由于宾语从句陈述的是客观事实，所以从句仍用一般现在时。4.It’smucholderthanmycountry.muchhigher

意为“高得多”。在形容比较级前还可以用much,even,alittle,still,alot,less等修饰词表示程度。Practice他比我跑得更快。Herunsevenfaster

thanI.日本土地面积只比德国大一点儿。JapanisalittlelargerthanGermanyinarea.5.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。e.g.A:CanIuseyourbathroom?

我可以用一下你的卫生间吗？

B:Yes,feelfree.可以，请随意。6.theMingGreatWall明长城“明长城”是指明朝时期为了防御北方游牧民族的骚扰，历时一百多年在北部地区修筑的军事防御工程。这段长城东起辽宁虎山，西至甘肃嘉峪关，从东向西横贯多个省、直辖市、自治区，全长约8850千米，是现存历代长城遗迹中最完整、最坚固的。7.AsfarasIknow,therearenoman-madeobjectsasbigas