unit 7 section a 1a-3d 課件 2023-2024學(xué)年人教版八年級英語

Unit7What’sthehighestmountainintheworld?R·八年級下冊SectionA1a-3cMatchthefactsyouknow.1aQomolangmatheNiletheCaspianSeatheSaharaQomolangmaTheNileTheCaspianSeaTheSaharaabout9,000,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,848.86metershighsquare在此處作形容詞，意為“平方”，用于數(shù)字后表示面積。square還可作名詞，意為“正方形；廣場”。insize在尺寸上；在大小方面與insize結(jié)構(gòu)類似的還有：inheight在高度上inweight在重量上

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

thousandeightthousand,eighthundred

andforty-four,pointfourthree

pointQomolangma珠穆朗瑪峰[t???m??,la:?m?]It’sabout9,600,000___________________________.____________istheSahara?Howbigsquarekilometersinsize(面積)

million

thousandninemillion,sixhundredthousand

introduction（介紹）TheSahara撒哈拉沙漠[s??hɑ?r?]It’s1,025meters______.HowdeepistheCaspianSea?deep

thousandonethousand

andtwenty-fiveTheCaspainSea里海[?k?spi?n]introduction（介紹）

It's6,671kilometers_______.____________istheNile?longHowlong

thousandsixthousand,sixhundred

andseventy-oneTheNile尼羅河[na?l]introduction（介紹）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比較級+thananyother+可數(shù)名詞單數(shù)（比其他任何一個都...)1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais__________desertintheworld.3.TheCaspianSeais___________ofallthesaltlakes.4.TheNileis__________riverintheworld.higherthebiggestthedeepestthelongestCanyoupredictwhatwewillfillinthefollowingblanks?比較級+thananyother+可數(shù)名詞單數(shù)“……比其他任何一個……都……”，指同一范圍內(nèi)的比較，表達最高級的意義。比較級+thanany+可數(shù)名詞單數(shù)“……比任何一個……都……”，指不在同一范圍內(nèi)進行比較。聽關(guān)鍵詞，可以忽略聽不懂的結(jié)構(gòu)。Teacher:

Yesterday,welearnedsomeimportantgeographicalfacts.Ihopeyouallstillrememberthem.I’mgoingtotestyounowbyaskingafewquestions.First,what’sthehighestmountainintheworld?Boy1:Qomolangma!It’shigherthananyothermountainintheworld.Teacher:That’sright.AndwhocantellmewhattheSaharais?Girl1:TheSaharaisthebiggestdesertintheworld.Tapescripts“比較級+thananyother+名詞+其他”表示“比其他任何一個……都……”注意：該結(jié)構(gòu)可與“the+最高級+其他”相互轉(zhuǎn)換。Teacher:Verygood.Andwhichisthedeepestsaltlakeintheworld?Girl2: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……”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引導(dǎo)的賓語從句oneofthe+形容詞最高級+可數(shù)名詞復(fù)數(shù)“最……的……之一”，作主語時，謂語動詞用單數(shù)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)隨便(做某事)tour作名詞：atourof/around…

……的旅行辨析：tour,trip,journey與traveltour常指以觀光、視察、購物等為目的的旅行，也可指明星的巡演。trip常指短距離的旅行、遠足。journey常指遠距離的陸地旅行。travel常指遠距離旅行或國外旅行。tour作動詞：“旅行；旅游”tourist是可數(shù)名詞，“旅行者；觀光者”Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee,it’squitetallandwide.AsfarasIknow,therearenootherman-madeobjectsasbigasthis.Wow,that’samazing!Whydidtheancientemperorsbuildthewall?Yes,it’sthemostfamouspart.IsBadalingpartoftheMingGreatWall?辨析：amazing與amazedamazing“令人大為驚奇的；令人驚喜（或驚嘆）的”，其主語或所修飾的名詞通常是物，常用來說明事物的特征。amazed“大為驚奇的”，其主語或所修飾的名詞通常是人，常用來說明人的感受。保衛(wèi),保護……不受……（的傷害）protect…from/against…protection

n.保護；=sofarasIknow就我所知WhichisthelongestriverinAsia(亞洲）?…RevisionWhichisthehighestmountainintheworld?Qomolangma—themostdangerousmountainintheworld.WhatdoyouthinkofQomolangma?HowisthenatureenvironmentinQomolangma?Thecloudsare______.Theairis________.Theweatheris________.Thestormsare________.hardtotakeinairthickfreezingheavythin稀薄Theforcesofnaturearestrong.WhatdoyouthinkofQomolangmaclibming?WhatdoyouthinkofQomolangmaclibmers?Theyrisktheirlives.(冒著生命危險)Theychallengethemselvesinthefaceofdifficulties.(挑戰(zhàn)自我，面對困難。)Qomolangma

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

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

V.['t??l?nd?]V.[?'t?i?v]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(地點):SouthwesternpartofChinaParagraph1dangers1.thickclouds2.Snowcanfallveryhard3.freezingweatherconditions4.heavystorms5.It’shardtotakeinairParagraph2:Achievementsofclimbers

NameTimeThefirstpeopletoreachthetopThefirstChineseteamdidso.ThefirstwomantosucceedonMay29,1953in1960in1975Pairwork與你的搭檔一起找答案CarefulreadingonMay29,1953onMay29,1953onMay29,1953JunkoTabei

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

inthefaceofdifficulties.（1）Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.（2）Italsoshowsthathumanscansometimesbestrongerthantheforcesofnature.A.臉B.面對√Readingskill閱讀技巧：Mindmap思維導(dǎo)圖“Mindmap”又叫“思維導(dǎo)圖”，在閱讀中應(yīng)用思維導(dǎo)圖可以加深對文章的理解和更好的對文章內(nèi)容進行記憶。Mindmap

Oneoftheworld’smostdangeroussportsismountainclimbing,…

“oneof+the+形容詞的最高級+復(fù)數(shù)名詞”，意為“最……之一”。如：

MissWangisoneofthemostpopularteachersinourschool.王老師是我們學(xué)校最受歡迎的老師之一。Languagepoints2.Itisalsoveryhardtotakeinairasyougetnearthetop.

Itis+adj.+todosth.，

it作形式主語放在句首，而把真正的主語放在句尾。常用于此句型的形容詞有important，difficult，dangerous，necessary，useful，possible等，用來對todosth.進行說明。此句型可以轉(zhuǎn)換成Todosth.is+adj.。3.Evenmoreseriousdifficultiesincludefreezingweatherconditionsandheavystorms.difficulty既可作可數(shù)名詞也可作不可數(shù)名詞。e.g.ItisimportanttostudyEnglishwell.

學(xué)好英語很困難。

It’sverydifficulttoclimbQomolangma.

攀登珠穆朗瑪峰很難。作可數(shù)名詞時通常用復(fù)數(shù)，表示具體概念，即：各式各樣的“困難，難題，難事”，如：He’shavingfinancialdifficulties.他正手頭拮據(jù)。作不可數(shù)名詞時，譯作“困難，艱難，辛苦”，如：Shehad