Unit7SectionA(2a-2d)課件人教版英語八年級下冊

SectionA(2a-2d)Unit7What'sthehighestmountainintheworld?LearninggoalsBytheendoftheclass,studentswillbeableto1.learnaboutsomefactsaboutChinaandtheUS.2.learnaboutsomegeographyaboutChina.WarmingupHowmuchdoyouknowaboutourgreatChina?What’sthehighestmountaininChina?What’sthebiggestdesertinChina?What’sthelongestriverinChina?What'sthepopulationofChina?---Qomolangma.TheTaklamakan.TheYangtzeRiver.

人口About1，400，000，000.WhenpeopletalkaboutChina,theyusuallycompareChinawithAmerica.AreyoufamiliarwithAmerica?WhatdoyouknowabouttheUS.

Pre-listening630050005465300AboyMikefromAmericaisvisitingChina.HeistalkingwithsomeChinesestudents.Therearesomenumbersintheirconversations.Canyoureadthenumbers?Guesswhattheyareabout?sixthousandandthreehundredfivethousandfivethousand,fourhundredandsixty-fivethreehundredWhile-listening2aListenandnumberthefacts[1-4]intheorderyouhearthem.6,300 5,000 5,464 300____TheYangtzeRiverisabout______kilometerslongandtheYellowRiveris_____kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven________yearsold.____ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.4213

n.亞洲

長江2bListenagainandfillintheblanksin2awiththenumbersinthebox.____TheYangtzeRiverisabout________kilometerslongandtheYellowRiveris__________kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_______yearsold.____ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.246,3005,4646,300 5,000 5,464 300135,000300Listenandread.Mike：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.很高興見到你們。動(dòng)詞不定式做原因狀語。oneof+the+形容詞最高級+名詞復(fù)數(shù)，表示最---之一常用來修飾比較級詞有兩多兩少一甚至，much,alot,alittle,abit,even。Boy：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.修飾人口用大（big,large）?。╯mall)=ChinaisalmostasbigastheUS.Post-listening2cCompareChinaandAmericaacoordingtothemindmap.TheYangtzeRiverandtheYellowRiverarethesymbolsofChina.SoistheGreatWall.SometouristsarevisitingtheGreatWall.Listentotheconversationbetweenthetourists（游客）andtheguide(導(dǎo)游）.Thenanswerthequestionbelow.1.HowlongistheGreatWall?It’sabout8,850kilometerslong.2.Whydidtheancientemperorsbuildthewall?Themainreasonwastoprotecttheirpartofthecountry.3.WhichpartisthemostfamouspartoftheMingGreatWall?Badalingpart.Role-playtheconversation.2dGuide: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(dòng)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Guide: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

就我所知

adj.人造的不定式短語作表語Let'swatchthevideo.Languagepoints1.Chinahasthebiggestpopulationintheworld.①population是集體名詞，在句中作主語時(shí)，謂語動(dòng)詞用單數(shù)形式。Nowwearefacingseriouspopulationproblem.②表示有多少人口時(shí)，用“have/hasapopulationof+數(shù)詞”，或“thepopulationof…is+數(shù)詞”。Chinahasapopulationofabout1.4billion.=ThepopulationofChinaisabout1.4billion.③詢問人口多少時(shí)，用“Whatisthepopulationof…?”或“Howlargeisthepopulationof…?”。What/HowlargeisthepopulationofAnhuiProvince?④表示人口多少時(shí)，用big/large或small修飾，而不能用many，much或few等。Indiahasalargepopulation.類似的，表示price（價(jià)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。2.Feelfreetoaskmeanythingontoday’sGreatWalltour.tour在此處作可數(shù)名詞，還可以作動(dòng)詞。TheywentonatouraroundEuropelastyear.(n.)WetouredItalyforourholidaylastyear.(v.)【拓展延伸】tour(v.)+后綴-ist→tourist(n.)旅行者；觀光者Thetourists(n.)toured(v.)HongKongforholidays.Theyallenjoyedtheirtour(n.).tourn.&v.旅行；旅游3.Wow,that’samazing.amazing一般用于表示事物性質(zhì)，amazed（感到驚奇的）常用于表示人的感受。

beamazedat意為“對……感到驚訝”。It’samazing.I’mamazedatwhathesaid.amazingadj.令人大為驚奇的；令人驚喜（驚嘆）的6.Themainreasonwastoprotecttheirpartofthecountry.protect此處用作及物動(dòng)詞,protect…against/from…“保護(hù)……免于……”。Let’stakeactiontoprotectourhome—theEarth.protectv.保護(hù)；防護(hù)Exercises一、單項(xiàng)選擇。1.—______isthepopulationofChinanow,Jack?—Letmethinkforamoment;itisabout______.A.Howmany;1,400million B.What;1,400millionC.What;140million D.Howmany;140million2.—The5Gtechnologycanhelpdoctorstreatpatientswhoarehundredsofkilometersaway.—It’sreally______.A.secret B.direct C.amazing D.traditionalBC3.____Iknow,moreandmorepeopleintheworldarelearningChinese.A.Aswellas B.Asoftenas C.Assoonas D.Asfaras4.TheYangtzeRiver