unit 7 section a 1a-3d 课件 2023-2024学年人教版八年级英语

Unit7What’sthehighestmountainintheworld?R·八年级下册SectionA1a-3cMatchthefactsyouknow.1aQomolangmatheNiletheCaspianSeatheSaharaQomolangmaTheNileTheCaspianSeaTheSaharaabout9,000,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,848.86metershighsquare在此处作形容词，意为“平方”，用于数字后表示面积。square还可作名词，意为“正方形；广场”。insize在尺寸上；在大小方面与insize结构类似的还有：inheight在高度上inweight在重量上

It’s8,844.43meters______.HowhighisQomolangma?highintroduction（介绍）

thousandeightthousand,eighthundred

andforty-four,pointfourthree

pointQomolangma珠穆朗玛峰[tʃəʊməʊ,la:ŋmə]It’sabout9,600,000___________________________.____________istheSahara?Howbigsquarekilometersinsize(面积)

million

thousandninemillion,sixhundredthousand

introduction（介绍）TheSahara撒哈拉沙漠[səˈhɑːrə]It’s1,025meters______.HowdeepistheCaspianSea?deep

thousandonethousand

andtwenty-fiveTheCaspainSea里海[ˈkæspiən]introduction（介绍）

It's6,671kilometers_______.____________istheNile?longHowlong

thousandsixthousand,sixhundred

andseventy-oneTheNile尼罗河[naɪl]introduction（介绍）MountainRiverSea/LakeDesertThink:1.Whatfeatureofamountain,river,etc.isthemostobvious?2.Whatwordcanbeusedtodescribethefeature?heightlengthdepthareahighest/tallestlowest/shortestlongestshortestdeepestshallowestbiggestsmallestFeatureMostLeastMountainRiverSea/LakeDesertFillinthetable.1,025metersdeeptheCaspianSea=TheCaspianSeaisdeeperthananyothersaltlake

intheworld.TheCaspianSeaisthedeepestofallthesaltlakes.9,600,000squarekmstheSaharaTheSaharaisthebiggestdesertintheworld.=TheSaharais_______than________desertintheworld.biggeranyother1bListenandcompletethesentences.1.Qomolangmais_________thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais_____________ofallthesaltlakes.4.TheNileis_____________riverintheworld.higherthebiggestthedeepestthelongest比较级+thananyother+可数名词单数（比其他任何一个都...)1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais__________desertintheworld.3.TheCaspianSeais___________ofallthesaltlakes.4.TheNileis__________riverintheworld.higherthebiggestthedeepestthelongestCanyoupredictwhatwewillfillinthefollowingblanks?比较级+thananyother+可数名词单数“……比其他任何一个……都……”，指同一范围内的比较，表达最高级的意义。比较级+thanany+可数名词单数“……比任何一个……都……”，指不在同一范围内进行比较。听关键词，可以忽略听不懂的结构。Teacher:

Yesterday,welearnedsomeimportantgeographicalfacts.Ihopeyouallstillrememberthem.I’mgoingtotestyounowbyaskingafewquestions.First,what’sthehighestmountainintheworld?Boy1:Qomolangma!It’shigherthananyothermountainintheworld.Teacher:That’sright.AndwhocantellmewhattheSaharais?Girl1:TheSaharaisthebiggestdesertintheworld.Tapescripts“比较级+thananyother+名词+其他”表示“比其他任何一个……都……”注意：该结构可与“the+最高级+其他”相互转换。Teacher:Verygood.Andwhichisthedeepestsaltlakeintheworld?Girl2:TheCaspianSeaisthedeepestofallthesaltlakes.Teacher:You’reallsosmart!Now,forthelastquestion,whichisthelongestriverintheworld?Boy2:Iknow!TheNileisthelongestriverintheworld.

Boy1:AndtheAmazonisthesecondlongestriverintheworld.Teacher:Itseemsthatyouknowtheanswerstoallmyquestions.Goodjob!“the+序数词+最高级+单数名词+in…”表示“是……中的第几……”Whatdoyouknowabouttheseplaces?Qomolangmaishigherthananyothermountainintheworld.It’s8,848.86metershigh.TheNileisthelongestriverintheworld.It’s6,671kilometerslong.TheCaspianSeaisthedeepestofallthesaltlakes.It’s1,025metersdeep.TheSaharaisthebiggestdesertintheworld.It’sabout9,000,000squarekilometersinsize.1cUsetheinformationin1btomakeconversations.Whatisthehighestmountainintheworld?Qomolangma.Whatisthe_____________intheworld?TheSahara.biggestdesertWhatisthe_______________intheworld?TheSahara.biggestdesertWhatisthedeepestsaltlakeintheworld?______________.TheCaspianSea_______________________________________TheNile.WhatisthelongestriverintheworldDoyouknowhowtoreadbignumbers?Let’swatchavideo.Readthenumbersbelow.5,0006,3005,465300Makeasmanysentencesasyoucantocomparethefournumbers.sixthousandandthreehundredfivethousand,fourhundredandsixty-fivefivethousandthreehundredForexample:6,300isthebiggest/largestnumber.6,300ismuchbiggerthan5,000.__TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris_______kilometerslong.__Chinahasthebiggestpopulationintheworld.It'salotbiggerthanthepopulationoftheUS.__Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.__ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.14322aListenandnumberthefacts[1-4]intheorderyouhearthem.TheYangtzeRiverisabout_______kilometerslongandtheYellowRiveris_________kilometerslong.Chinahasthebiggestpopulationintheworld.It'salotbiggerthanthepopulationoftheUS.Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.6,3005,4645,0003002bListenagainandfillintheblanksin2awiththenumbersinthebox.Mike:Hi,I’mMike.I’mfromtheUnitedStates.

Boy:Welcometoourclass,Mike.We’rehappytomeetyou.Mike:CanyoutellmeabitmoreaboutChina?

Girl:Sure!DidyouknowthatChinaisoneoftheoldestcountriesintheworld?It’sover5,000yearsold.TapescriptsMike:Yes,Idid.It’smucholderthanmycountry—infact,theUnitedStatesisoneoftheyoungestcountriesintheworld.It’snoteven300yearsold.主句that引导的宾语从句oneofthe+形容词最高级+可数名词复数“最……的……之一”，作主语时，谓语动词用单数形式。Mike:Wow!Ididn’tknowthat.IthoughttheYellowRiverwaslonger.Boy:No,theYellowRiveris5,464kilometerslong.ButbothriversareveryimportanttoChina.Mike:

ButChinaisaboutthesamesizeastheUS,right?

Girl:

Yes,andit’sthebiggestcountryinAsia.Wealsohavesomefamousrivers.TheYangtzeRiveristhelongestriverinAsia.It’sabout6,300kilometerslong.Boy:AndChinahasthebiggestpopulation,too.It’salotbiggerthanthepopulationoftheUnitedStates.2cMakeconversationsusingtheinformationin2a.A:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.DidyouknowthatChinaisthebiggestcountryinAsia?Yes,Idid._____________________bigastheUS.It’salmostasYes,Idid.It’s6,300kilometerslong.Didyouknowthat__________________________________________?thelongestriverYangtzeRiverisinChinaReadtheconversationin2dfastandfindoutthemainideaofit.FastreadingIt’saboutatourtotheMingGreatWall.Role-playtheconversation.Listenandanswerthequestions.2d1.HowlongistheGreatWall?Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong.2.Whydidtheancientemperorsbuildthewall?TheBadalingpart.Themainreasonwastoprotecttheirpartofthecountry.3.WhichpartisthemostfamouspartoftheMingGreatWall?Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometers_____.Thismakesitthe_______wallintheworld.Themainreasonwhytheancientemperorsbuiltthewallwastoprotecttheirpartofthecountry.Asyoucansee,it’squite____and_____.AsfarasIknow,therearenoother__________objectsasbigasthis.longestlongReadtheconversationandfillintheblanks.tallwideman-madeFeelfreetoaskmeanythingontoday’sGreatWalltour.2dRole-playtheconversation.Howlongisthewall?Ah,themostpopularquestion!Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.feelfreetodosth.(可以)随便(做某事)tour作名词：atourof/around…

……的旅行辨析：tour,trip,journey与traveltour常指以观光、视察、购物等为目的的旅行，也可指明星的巡演。trip常指短距离的旅行、远足。journey常指远距离的陆地旅行。travel常指远距离旅行或国外旅行。tour作动词：“旅行；旅游”tourist是可数名词，“旅行者；观光者”Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee,it’squitetallandwide.AsfarasIknow,therearenootherman-madeobjectsasbigasthis.Wow,that’samazing!Whydidtheancientemperorsbuildthewall?Yes,it’sthemostfamouspart.IsBadalingpartoftheMingGreatWall?辨析：amazing与amazedamazing“令人大为惊奇的；令人惊喜（或惊叹）的”，其主语或所修饰的名词通常是物，常用来说明事物的特征。amazed“大为惊奇的”，其主语或所修饰的名词通常是人，常用来说明人的感受。保卫,保护……不受……（的伤害）protect…from/against…protection

n.保护；=sofarasIknow就我所知WhichisthelongestriverinAsia(亚洲）?…RevisionWhichisthehighestmountainintheworld?Qomolangma—themostdangerousmountainintheworld.WhatdoyouthinkofQomolangma?HowisthenatureenvironmentinQomolangma?Thecloudsare______.Theairis________.Theweatheris________.Thestormsare________.hardtotakeinairthickfreezingheavythin稀薄Theforcesofnaturearestrong.WhatdoyouthinkofQomolangmaclibming?WhatdoyouthinkofQomolangmaclibmers?Theyrisktheirlives.(冒着生命危险)Theychallengethemselvesinthefaceofdifficulties.(挑战自我，面对困难。)Qomolangma

theHimalayasQ:Isithardfortheclimberstoreachthetop?Why?manydifficultconditionsPre-Reading:manydifficultconditions:Theweatherisfreezing.Snowcanfallhard.Cloudsarethick.

It'shightoclimb.It'sdifficulttotakeinair.Theywanttochallengethemselves.Theywanttoachievetheirdreams.Althoughit'sverydifficultfortheclimberstoreachthetop,whydotheystillwanttorisktheirlives?Becuase...

V.['tʃælɪndʒ]V.[ə'tʃiːv]123While-Reading:Fast-Reading:Readthearticleandanswerthequestions.Underlinetheanswersinthearticleandwritedownthenumbers.(3min)Q1:WherearetheHimalayas?Q2:WhendidthefirstChineseteamreachthetop?Q3:Whatdoesthespiritoftheclimberstellus?Careful-Reading:ReadParagraph1andfinishthetasks.(2min)TheHimalayasrunalongthenorthwesternpartofChina.()FTask1Listthedangers.Task2JudgeTorF(Vote).Danger1Danger2Danger3Danger4Danger5Danger6veryhighthickcloudssnowcanfallveryhardfreezingweatherconditionsheavystormshardtotakeinairsouthwestenReadParagraph2andfindoutthethreeachievements.

(2min)Whendidithappened?Whoreachedthetop?On_______,1953Thefirst_______,TenzingNorgayandEdumundHillaryIn______Thefirst____________In______The__________,JunkoTabaipeople1960May29Chineseteam1975firstwomanReadParagraph3andchoosetherightanswer.(2min)Q1:Whichsentenceisrightaccodingtothepassage?A:Humansarealwaysstrongerthantheforceofnature.B:Humansareasstrongastheforceofnature.C.Humansaresometimesstrongerthantheforceofnature.Q2:Whydosomanyclimbersrisktheirlives?Themainreasonisthat_____.A:theywanttoshowtheirspirits.B:theywanttochallengethemselves.C:theywanttoachievetheirdreams.FactsDangerousSport:MountainclimbingPopularplace:HighestMountain:Height:TheHimalayas8,844.43metersQomolangmaLocation(地点):SouthwesternpartofChinaParagraph1dangers1.thickclouds2.Snowcanfallveryhard3.freezingweatherconditions4.heavystorms5.It’shardtotakeinairParagraph2:Achievementsofclimbers

NameTimeThefirstpeopletoreachthetopThefirstChineseteamdidso.ThefirstwomantosucceedonMay29,1953in1960in1975Pairwork与你的搭档一起找答案CarefulreadingonMay29,1953onMay29,1953onMay29,1953JunkoTabei

fromJapanTenzingNorgayandEdmundHillaryCareful-reading:Paragraph3:Spiritofclimbers1.Whydosomanypeopletrytoclimbthismountaineventhoughitisdangerous?2.Whatdoesthespiritoftheclimberstellus?=evenifOneofthemainreasonsisbecausepeoplewanttochallengethemselves

inthefaceofdifficulties.（1）Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.（2）Italsoshowsthathumanscansometimesbestrongerthantheforcesofnature.A.脸B.面对√Readingskill阅读技巧：Mindmap思维导图“Mindmap”又叫“思维导图”，在阅读中应用思维导图可以加深对文章的理解和更好的对文章内容进行记忆。Mindmap

Oneoftheworld’smostdangeroussportsismountainclimbing,…

“oneof+the+形容词的最高级+复数名词”，意为“最……之一”。如：

MissWangisoneofthemostpopularteachersinourschool.王老师是我们学校最受欢迎的老师之一。Languagepoints2.Itisalsoveryhardtotakeinairasyougetnearthetop.

Itis+adj.+todosth.，

it作形式主语放在句首，而把真正的主语放在句尾。常用于此句型的形容词有important，difficult，dangerous，necessary，useful，possible等，用来对todosth.进行说明。此句型可以转换成Todosth.is+adj.。3.Evenmoreseriousdifficultiesincludefreezingweatherconditionsandheavystorms.difficulty既可作可数名词也可作不可数名词。e.g.ItisimportanttostudyEnglishwell.

学好英语很困难。

It’sverydifficulttoclimbQomolangma.

攀登珠穆朗玛峰很难。作可数名词时通常用复数，表示具体概念，即：各式各样的“困难，难题，难事”，如：He’shavingfinancialdifficulties.他正手头拮据。作不可数名词时，译作“困难，艰难，辛苦”，如：Shehad