Unit7 Section A 2a-2d 課件-人教版八年級(jí)英語下冊(cè)

Unit7What'sthehightestmountainintheword?Period2SectionA(2a-2d)接龍幻燈片上數(shù)字出現(xiàn)時(shí)，同學(xué)應(yīng)迅速讀出。每人一個(gè)，按行/列依次接龍，5秒內(nèi)說不出，此行/列同學(xué)即失去此答題機(jī)會(huì)，下一行/列同學(xué)接續(xù)。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.人口數(shù)量n.亞洲（可以）隨便（做某事）n.&v.旅行；旅游n.旅行者；觀光者n.墻adj.令人大為驚奇的；令人驚喜的adj;古代的；古老的v.保護(hù)；防護(hù)adj.寬的；寬闊的就我所知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表示物體長、寬、高、深的表達(dá)法用“數(shù)次+單位名詞+形容詞（long,wide,high,deep等）”來表示，如果數(shù)字大于1，名詞要用復(fù)數(shù)形式。200metershigh200米高1.1,025metersdeep：深1025米Exploration8,844.431,0256,600,0006,211.313,219metershigh

metersdeepsquarekilometersinsizekilometerslongkilometerswide

基數(shù)詞+單位詞+形容詞平方千米/公里長的寬的高的深的面積/體積大小的

物體長，寬，高的表達(dá)法

基數(shù)詞>1,單位名詞用復(fù)數(shù)

物體長，寬，高的表達(dá)法

基數(shù)詞+單位詞+in+

名詞

基數(shù)詞+單位詞+形容詞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：意為“人口數(shù)量”，“人口”，是一個(gè)集合名詞.population常與定冠詞the連用,作主語用時(shí),謂語動(dòng)詞常用第三人稱單數(shù)形式。Theworld’spopulation___increasing__________________.全世界的人口增長得越來越快。ThepopulationofChinaisabout1,300,000,000.中國人口大約有13億。fasterandfasteris當(dāng)主語是表示“人口的百分之幾、幾分之幾”時(shí),謂語動(dòng)詞用復(fù)數(shù)形式。eg:中國大約有百分之七十的人口是農(nóng)民。AboutseventypercentofthepopulationinChinaarefarmers.

詢問某國、某地有多少人口時(shí),

“Howlarge...?”;在問具體人口時(shí)用“What...?”。你們家鄉(xiāng)有多少人口?

加拿大的人口數(shù)是多少?

Howlargeisthepopulationofyourhometown?

WhatisthepopulationofCanada?Practice這個(gè)城市的人口是600萬。Thepopulationofthiscityissixmillion．中國的人口比美國的人口多很多。ThepopulationofChinaismuch

largerthanthatoftheUSA.3.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?thatChinais…是know的賓語從句。盡管主句的動(dòng)詞是過去時(shí)態(tài)，但由于賓語從句陳述的是客觀事實(shí)，所以從句仍用一般現(xiàn)在時(shí)。4.It’smucholderthanmycountry.muchhigher

意為“高得多”。在形容比較級(jí)前還可以用much,even,alittle,still,alot,less等修飾詞表示程度。Practice他比我跑得更快。Herunsevenfaster

thanI.日本土地面積只比德國大一點(diǎn)兒。JapanisalittlelargerthanGermanyinarea.5.Feelfreetoaskmeanythingontoday’sGreatWalltour.

在今天的長城游中，大家盡管問我任何問題，不要拘束。

feelfree是英語口語中一個(gè)常用表達(dá)。若有人讓你feelfreetodosomething,就是讓你無需拘束，只管按照自己的意愿去做某事。e.g.A:CanIuseyourbathroom?

我可以用一下你的衛(wèi)生間嗎？

B:Yes,feelfree.可以，請(qǐng)隨意。6.theMingGreatWall明長城“明長城”是指明朝時(shí)期為了防御北方游牧民族的騷擾，歷時(shí)一百多年在北部地區(qū)修筑的軍事防御工程。這段長城東起遼寧虎山，西至甘肅嘉峪關(guān)，從東向西橫貫多個(gè)省、直轄市、自治區(qū)，全長約8850千米，是現(xiàn)存歷代長城遺跡中最完整、最堅(jiān)固的。7.AsfarasIknow,therearenoman-madeobjectsasbigas