人教版初中英語八年級下冊Unit7SectionA1a2d課件

Unit7What’sthehighestmountainintheworld.?SectionA(1a-2d）1.能夠聽懂談?wù)摗白匀坏乩碇睢钡膶υ拑?nèi)容，并掌握物體長寬高及面積的表達(dá)等。2.能夠掌握大數(shù)字的讀法，并運用大數(shù)字和比較級、最高級談?wù)摗白匀坏乩碇睢薄?.通過反復(fù)聽,能以角色扮演的形式，用正確的語音語調(diào)運用所學(xué)句型進(jìn)行對話。Learninggoals4.能夠了解我國和世界的一些“自然地理之最”，并通過對比加深對祖國的了解和熱愛。Doyouliketravelingaroundtheworld?Doyouknowthem?Whichisthebiggestcontinentintheworld?Asia/'e???/亞洲Europe/?j??r?p/歐洲Africa/'?fr?k?/非洲Oceania/???si?ɑ?ni?/大洋洲SouthAmerica

南美洲NorthAmerica北美洲Asiaisthelargestcontinent.Let’senjoythebeautifulscenery.What'sthenameofthemountain?QomolangmaDoyouknowaboutQomolangma?Ithaslongbeenadreamandtargetofmanymountainclimbers.It'sbetweenNepalandChina.It'sthehighestmountainintheworld.DoyouknowhowhighQomolangmais?It'sabout8844.43metershigh.

Pre-listeningLet’senjoythebeautifulscenery.What'sthenameoftheriver?theNileDoyouknowabouttheNile?Ithastwomainbranches（主要的支流）.It'sthelongestriverintheworld.AllofthebranchesflowintotheMediterraneanSea.DoyouknowhowlongtheNileis?It'sabout6,671kilometerslong.

Pre-listeningLet’senjoythebeautifulscenery.What'sthenameofthelake?theCaspianSeaDoyouknowabouttheCaspianSea?It'ssurrounded（包圍）byfivecountries.Itforms40to44%ofthetotallakewatersoftheworld.It'sthelargestland-locked（內(nèi)陸）bodyofwaterontheearth.DoyouknowhowdeeptheCaspianSeais?It'sabout1,025metersdeep.

Pre-listeningLet’senjoythebeautifulscenery.What'sthenameofthedesert?theSaharaDoyouknowabouttheSahara?ItcoversmorethanonefifthoftheEarth'sland.It'sontheAfricancontinent.It'sthebiggesthotdesert.DoyouknowhowbigtheSaharaisinitssize?It'sabout9,600,000squarekilometersinsize.

Pre-listening

Pre-listeningHowtoreadthelargenumbers?9,600,0001,0256,6718,848.86

百百萬

千十億twobillionandsixty-fivemillion,sixhundredandninethousand,ninehundredandeightypointthreefour.點billionmillionthousandhundredpoint2,065,609,980.34billionmillionthousandpointthreefourand

Pre-listening小竅門自右向左三逗分；一逗千(thousand)二逗百萬(million)三逗十億(billion)左右三位分開讀；百位十位and連。這種方法你喜歡？讀時，將每三位數(shù)看做一個單位，自右向左依次為thousand千，million百萬，billion十億。每個單位按百、十、個位向右讀。其中百位到十位之間要加入and。小數(shù)點讀point。Howtoreadthelargenumbers?

Pre-listening7,742.331,390,000,0003,563,1292,000,060,000threemillion,fivehundred

andsixty-threethousand,onehundred

andtwenty-nine.onebillion,threehundred

andninetymillion.seventhousand,sevenhundred

andforty-twopointfourthree.twobillion

and

sixtythousand.Canyoureadthelargenumbers?

Pre-listening9,600,0001,0256,6718,848.86sixthousand,sixhundredandseventy-one.onethousandandtwenty-five.ninemillion,sixhundredthousand.eightthousand,eighthundredandforty-eightpointeightsix.Trytoreadthem.

Pre-listeningHowhighisQomolangma?It's

8,844.43metershigh.HowdeepistheCaspianSea?It's

1,025metersdeep.HowlongistheNile?It's6,671kilometerslong.HowbigistheSahara?It's

about9,600,000squarekilometersinsize.Conclusion:詢問長、寬、高、深、面積的表達(dá)方法問句：_____+_______________________________________+___+____?答句一：____+___+______+______+__________________________。How形容詞(long/wide/high/deep/big…)be主語主語be基數(shù)詞單位詞形容詞(long/wide/high…)Howtoaskandanswer?

Pre-listeningIt's8,844.43metersinheight.It's1,025metersindepth.It's6,671kilometersinlength.Expansionwide的名詞形式為widthIt's

8,844.43metershigh.It's

1,025metersdeep.It's6,671kilometerslong.It's

about9,600,000squarekilometersinsize.Conclusion:詢問長、寬、高、深、面積的表達(dá)方法問句：_____+_______________________________________+___+____?答句二：____+___+______+______+____+_____________________。How形容詞(long/wide/high/deep/big…)be主語主語be基數(shù)詞名詞(size/length/…)單位詞inHowtoaskandanswer?

Pre-listeningMatchthefactsyouknow.1aQomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh

Pre-listeningPredictandtrytocompletethesentencesin1b.1.Qomolangmais_______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis___________riverintheworld.“世界之最”Listenandcompletethesentences.1bWhile-listening1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongest比其他任何山都高=最高=Qomolangmaisthehighestmountainintheworld.總結(jié)：形容詞比較級+thananyother+單數(shù)名詞=最高級+單數(shù)名詞。Teacher:Yesterday,welearnedsomeimportantgeographicalfacts.Ihopeyouallstillrememberthem.I'mgoingtotestyounowbyaskingafewquestions.First,what'sthehighestmountainintheworld?Boy1:Qomolangma!It'shigherthananyothermountainintheworld.Teacher:That'sright.AndwhocantellmewhattheSaharais?Girl1:TheSaharaisthebiggestdesertintheworld.Teacher:Verygood.Andwhichisthedeepestsaltlakeintheworld?地理事實ListenandreadabloudWhile-listeningListenandreadabloudGirl2:TheCaspianSeaisthedeepestofallthesaltlakes.Teacher:You'reallsosmart!Now,forthelastquestion,whichisthelongestriverintheworld?Boy2:Iknow!TheNileisthelongestriverintheworld.Boy1:AndtheAmazonisthesecondlongestriverintheworld.Teacher:Itseemsthatyouknowtheanswerstoallmyquestions.Goodjob!“the+序數(shù)詞+最高級+單數(shù)名詞+in…”表示“是……中的第幾……”While-listeningQomolangmaishigherthananyothermountainintheworld.該結(jié)構(gòu)意為“比其他任何一個……都……”，指同一范圍內(nèi)比較，表示最高級含義。Sheisthinnerthananyotherstudentinherclass.=Sheisthethinnestinherclass.other必不可少，用以將主語從比較對象中排除，避免邏輯矛盾。比較級+thananyother+可數(shù)名詞單數(shù)LanguagepointsLet’slearnLanguagepoints【特別提醒】如果比較對象不在同一范圍內(nèi)或不屬于同一類別，應(yīng)用“形容詞/副詞比較級+thanany（任何的）

+可數(shù)名詞單數(shù)”。ThePacificOceanislargerthananylakeintheworld.練一練Hulunbuirisbiggerthan_____________cityinChina.Hulunbuirisbiggerthan_____________cityinAnhui.anyotheranyLet’slearnUsetheinformationin1btomakeconversations.1c

Pre-listeningQomolangmaWhatisthehighestmountainintheworld?Qomolangma

Pre-listeningQuize Howmuchdoyouknowaboutourcountry?1.HowlongisthehistoryofChina?2.WhatsizeisChina?3.WhatisthepopulationofChina?4.HowlongistheYangtzeRiverandtheYellowRiver?Chinahasahistoryofmorethan5000years.About9,600,000squarekllometersinsize.It

has

apopulationof1,400,000,000.TheYangtzeRiverisabout6,300kilometerslong.theYellowRiverisabout5,464kilometerslong.Listenandnumberthefacts[1-4]intheorderyouhearthem.2a___TheYangtzeRiverisabout______kilometerslongandtheYellowRiveris______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.6,3005,0005,4643004213長江While-listeningListenagainandfillintheblanksin2awiththenumbersinthebox.2b___TheYangtzeRiverisabout______kilometerslongandtheYellowRiveris______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.6,3005,0005,4643004213長江6,3005,4645,000300alot和much可修飾比較級。as...as...和...一樣（同級比較）While-listeningLanguagepoints 3.Chinahasthebiggestpopulationintheworld.①populationn.人口；人口數(shù)量。是集體名詞，在句中作主語時，謂語動詞用單數(shù)形式。population之前若有分?jǐn)?shù)修飾做主語時,謂語動詞則可用復(fù)數(shù)形式.

中國人口有17億多。ThepopulationofChinaisover1.7billion.這兒大約有五分之三的人口是農(nóng)民。Aboutthreefifthsofthepopulationherearefarmers.Let’slearnLanguagepoints ②表示有多少人口時，用“have/hasapopulationof+數(shù)詞”，或“thepopulationof…is+數(shù)詞”。Chinahasapopulationofabout1.4billion.=ThepopulationofChinaisabout1.4billion.③詢問人口多少時，用“Whatisthepopulationof…?”或“Howlargeisthepopulationof…?”。What/HowlargeisthepopulationofHenanProvince?Let’slearnLanguagepoints ④表示人口多少時，用big/large或small修飾，而不能用many，much或few等。Indiahasalargepopulation.類似的，表示price（價格）高低，用high或low，不能用expensive或cheap；表示temperature（溫度）高低，用high或low，不能用hot或cold。Let’slearnListenandreadabloudMike：Hi,I’mMike.I’mfromtheUnitedStates.Boy：Welcometoourclass,Mike.We’rehappytomeetyou.Mike：CanyoutellmeabitmoreaboutChina?Girl：Sure!DidyouknowthatChinaisoneoftheoldestcountriesintheworld?It’sover5,000yearsold.Mike：Yes,Idid.It’smucholderthanmycountry—infact,theUnitedStatesisoneoftheyoungestcountriesintheworld.It’snoteven300yearsold.

Post-listeningListenandreadabloudBoy：AndChinahasthebiggestpopulation,too.It’salotbiggerthanthepopulationoftheUnitedStates.Mike：ButChinaisaboutthesamesizeastheUS,right?Girl：Yes,andit’sthebiggestcountryinAsia.Wealsohavesomefamousrivers.TheYangtzeRiveristhelongestriverinAsia.It’sabout6,300kilometerslong.Mike：Wow!Ididn’tknowthat.IthoughttheYellowRiverwaslonger.Boy：No,theYellowRiveris5,464kilometerslong.ButbothriversareveryimportanttoChina.

Post-listeningMakeconversationsusingtheinformationin2a.2cHistoryoneoftheoldestcountries;over5,000yearsoldoneoftheyoungestcountries;noteven300yearsoldPopulationthebiggestpopulationintheworld/AreathebiggestcountryinAsiaasbigasChinaRivertheYangtzeRiver;theYellowRiver/Practiceinpairslikethis:A:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.

Post-listeningGuide:

toaskmeanythingontoday'sGreatWalltour.Tourist1:

isthewall?Guide:Ah,themostpopularquestion!Ifwe'reonly

thepartsfromtheMingDynasty,it'sabout8,850kilometerslong.This______itthelongestwallintheworld.Tourist2:Wow,that'samazing!Whydidtheancientemperorsbuildthewall?

Guide:The

wastoprotecttheirpartofthecountry.__________

_________,it’squitetallandwide.

,therearenootherman-madeobjectsasbigasthis.Tourist3:IsBadaling

theMingGreatWall?Guide:Yes,it'sthemostfamouspart.FeelfreeHowlongtalkingaboutmakesmainreasonAsyoucanseeAsfarasIknowpartofFillintheblanksaccordingtotheconversation.

Post-listeningGuide:Feelfreetoaskmeanythingontoday'sGreatWalltour.Tourist1:Howlongisthewall?Guide:Ah,themostpopularquestion!Ifwe'reonlytalkingaboutthepartsfromtheMingDynasty,it'sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.Tourist2:Wow,that'samazing!Whydidtheancientemperorsbuildthewall?

（可以）隨便（做某事）,其后接動詞不定式。n.&v.旅行；旅游

n.墻

adj.令人大為驚奇的；令人驚喜（驚嘆）的

adj.古代的；古老的

n.旅行者；觀光者Role-playtheconversation.2d

Post-listeningRole-playtheconversation.2dGuide:Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee,it'squitetallandwide.AsfarasIknow,therearenootherman-madeobjectsasbigasthis.Tourist3:IsBadalingpartoftheMingGreatWall?Guide:Yes,it'sthemostfamouspart.

v.保護(hù)；防護(hù)

adj.寬的；寬闊的

adj.人造的不定式短語作表語

Post-listening

GroupworkHowmuchdoyouknowaboutChina?FactsaboutChinaSize≈___________km2MountainhighestQomolangma(8,844.43m)RiverlongestLakebiggestDesertlargestSquarebiggestCitylargest…TodaywetalkedaboutthegeographicalfactsaboutChina.Chinais…squarekilometersinsize.Thehighestmountain…is…It’s…metershigh.It’shigherthananyothermountain…IloveChina.Thankyouforyourlistening.

Post-listeningReport1.長、寬、高、深、面積的表達(dá)方法基數(shù)詞+單位詞+形容詞（long,wide,high,deep等）基數(shù)詞+單位詞+in+名詞（length,width,height,depth,size等）eg：Itisabout100meterslongfrommyhousetothetheater.

從我家到劇場大約100米。Thewellisabout5metersdeep.這口井大約5米深。Thisruleris20centimeterlong.這把尺子有20厘米長。=Thisruleris20centimeterinlength.Thegiraffeisthreefeethigh.=Thegiraffeisthreefeetinheight.

長頸鹿有三英尺高。Let’slearn2.Qomolangmaishigherthananyothermountainintheworld.“anyother+可數(shù)名詞的單數(shù)”，意為“任何其他的”?anyother“其他任何一個”，后接可數(shù)名詞單數(shù)；指在同一范圍內(nèi)除了某人