八年級(jí)英語下冊Unit7What'sthehighestmountainintheworldSectionA課件（完整版）3

Unit7What’sthehighestmountainintheworld?SectionAWhat’s

thehighestmountainintheworld?What’sthelargestdesertintheworld?What’sthelongestriverintheworld?LeadinHowhighisQomolangma?It’s8,844metershigh.TheheightofQomolangmais8,844.43meters.Thehighestmountainintheworldis8,844.43metershigh.

ThelongestrivertheNileThebiggestsaltlakestheCaspianSeaThebiggestdesertintheworldtheSaharaHowbigistheSahara?It’sabout9,600,000squarekilometersinsize.Thebiggestdesertintheworldisabout9,600,000squarekilometersinsize.1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1.Qomolangmais_______thananyothermountainintheworld.2.TheSaharais___________desertintheworld.3.TheCaspianSeais__________ofallthesaltlakes.4.TheNileis____________riverintheworld.higherthebiggestthebiggestthelongest__TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris_______kilometerslong.__Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.__Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.__ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.2aListenandnumberthefacts[1-4]intheorderyouhearthem.6,3005,0005,46430014322bListenagainandfillintheblanksin2awiththenumbersinthebox.1TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris_______kilometerslong.4Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.3Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.2ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.63005,4645,0003002cMakeconversationsusingtheinformationin2a.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthanmycountry.2dRole-playtheconversation.3aReadthearticleandmatch

each

paragraphwiththemainideas.Pragraph1SpiritofclimbersPragraph2AchievementsofclimbersPragraph3FactsanddangersParagraph1Paragraph2Paragraph1&3ListfourdangersforclimbersListthreeachievementsListfourcomparisonsthickclouds1953-TenzingNorgayandEdmundHillarywerethefirsttoreachthetopmostdangeroussportsnow,freezingweatherandheavystorms1960-thefirstChineseteam1975-thefirstwomanthepopularplacesthehighestmountainthemostfamous3cAnswerthequestionsusing

informationinthearticle.1.WherearetheHimalayas?2.HowhighisQomolangma?3.Whydosomanypeopletrytoclimbthismountaineventhoughitisdangerous?4.Whatdoesthespiritoftheclimberstellus?TheyrunalongthesouthwesternpartofChina.8,844.43metreshigh.Becausepeoplewanttochallengethemselvesinthefaceofdifficulties.Weshouldnevergiveuptryingtoachieveourdreams.Grammar形容詞和副詞的比較級(jí)和最高級(jí)形容詞和副詞的比較級(jí)和最高級(jí)（規(guī)則變化）單音節(jié)詞和少數(shù)多音節(jié)詞一般在詞尾加-er或-est原級(jí)比較級(jí)最高級(jí)highstrongfastslow higherhigheststrongerstrongestfasterfastestslowerslowest以字母e結(jié)尾的詞，加-r或-st原級(jí)比較級(jí)最高級(jí)finelatefinerfinestlaterlatest以“輔音字母+y”結(jié)尾的雙音節(jié)詞，先改“y”為“i”，再加-er或-est原級(jí)比較級(jí)最高級(jí)easyluckyearlyeasiereasiestluckierluckiestearlierearliest多音節(jié)詞和部分雙音節(jié)詞在詞前加more或most原級(jí)比較級(jí)最高級(jí)deliciousinterestingeasilycarefullymoredeliciousmostdeliciousmoreinterestingmostinterestingmoreeasilymosteasilymorecarefullymostcarefullybetterbestworseworstmoremostlessleastfartherfarthestfurtherfurthest（不規(guī)則變化）原級(jí)比較級(jí)最高級(jí)good/wellbad/badlymany/muchlittlefar1.Qomolangmais8,844.43metershigh.珠穆朗瑪峰高8844.43米。TheCaspianSeais1,025metersdeep.里海深1025米。TheNileis6,671kilometerslong.尼羅河長6671千米。知識(shí)點(diǎn)精講

【自主領(lǐng)悟】數(shù)詞+meters(kilometers)+long(high/tall/wide/deep/thick/heavy...),是英語中表示計(jì)量的方法,其中表示人、樹的高度用tall,表示物體的高度用high。例如:MyEnglishteacheris1.82meterstall.我的英語老師高一米八二。【歸納拓展】英語中表示計(jì)量的其他方法長、寬、高還可以用復(fù)合形容詞,即“數(shù)字+量詞(單數(shù))+long/wide/high...”表達(dá),中間加連字符,常用作定語。例如:Thisisaten-meter-widestreet,andthetrafficisbusy.這條路寬十米,交通繁忙?！净顚W(xué)活用】

①黃河長5464千米。TheYellowRiveris5,464

.②死海約深392米。TheDeadSeaisabout392

.③Themountainis1,500metershigh.(改為同義句)Itisa

mountain.答案:①kilometerslong②metersdeep③1,500-meter-high2.Chinahasthebiggestpopulationintheworld.中國有世界上最多的人口?！咀灾黝I(lǐng)悟】population意為“人口”,為不可數(shù)名詞,在表示人口“多”“少”時(shí),用large(big)和small修飾。特指某一地區(qū)或某一國家的“人口”時(shí),其前常加定冠詞the。例如:Thepopulationofmyhometownissmall.我家鄉(xiāng)的人口很少?！練w納拓展】population的不同用法

population作主語時(shí),謂語動(dòng)詞常用單數(shù)形式,但如果有分?jǐn)?shù)或百分?jǐn)?shù)等修飾時(shí)謂語動(dòng)詞用復(fù)數(shù)形式。問某地人口多少常用What’sthepopulationof...?例如:What’sthepopulationofSouthAfrica?南非的人口是多少?【活學(xué)活用】

①加拿大的人口是多少?__________________ofCanada?②印度人口相當(dāng)多。ThepopulationofIndia______so______.③新加坡四分之三的人口是中國人。ThreequartersofthepopulationinSingapore______Chinese.答案:①What’sthepopulation②is;large/big③are3.Chinaisover5,000yearsold.IthasamuchlongerhistorythantheUS.中國有五千多年的歷史,比美國歷史要長得多?！咀灾黝I(lǐng)悟】表示兩者比較時(shí)用比較級(jí),longer是形容詞long的比較級(jí),修飾比較級(jí)常用much,alot或是alittle等。例如:Theroomismuchcleanerthanthatone.這個(gè)房間比那個(gè)干凈得多。【活學(xué)活用】

①湯姆每天鍛煉,身體比以前強(qiáng)壯多了。Tomexerciseseverydayandheis

thanbefore.②現(xiàn)在學(xué)生有越來越多的作業(yè)。Thestudentshave

homeworknow.③你越努力學(xué)習(xí),你取得的成績就會(huì)越好。The

youstudy,

gradesyoucanget.答案:①muchstronger②moreandmore③harder;thebetter4.Ofallthemountains,Qomolangmarisesthehighestandisthemostfamous.在所有的山峰中,珠穆朗瑪峰是最高最有名的?！咀灾黝I(lǐng)悟】三者或三者以上進(jìn)行比較:最高級(jí)+表示范圍的狀語,其意義是“某人、某事在某個(gè)范圍內(nèi)最……”。使用這種結(jié)構(gòu)時(shí)注意,形容詞的最高級(jí)前面一般來說要加定冠詞the。of后接名詞,用來說明“最高級(jí)的范圍”,其實(shí)也是“比較對象”;而in直接加一個(gè)范圍。例如:Maryisthesmarteststudentinourclass.瑪麗是我們班最聰明的學(xué)生?！練w納拓展】形容詞最高級(jí)的不同用法(1)“oneof+the+最高級(jí)+名詞復(fù)數(shù)”表示“最……的……之一”。例如:DengJiaxianisoneofthemostfamousChinesescientists.鄧稼先是中國最著名的科學(xué)家之一。(2)“the+序數(shù)詞+形容詞最高級(jí)+名詞單數(shù)”表示“第幾最……的……”。例如:Indiahasthesecondlargestpopulationintheworld.印度是世界上人口第二多的國家?！净顚W(xué)活用】①ZhangHuaisthe

(tall)ofallthegirls.②Franceisoneofthe

(big)countriesinEurope.③Africaisthesecond

(large)continentintheworld.答案:①tallest②biggest③largest5.ThefirstwomantosucceedwasJunkoTabeifromJapanin1975.第一個(gè)成功的女人是1975年日本的田部井淳子?！咀灾黝I(lǐng)悟】succeed為動(dòng)詞,意為“成功”。常見搭配:succeedin(doing)sth.“成功做成某事”。例如:Hesucceededinworkingouttheproblem.他成功解決了這個(gè)問題?！練w納拓展】succeed變形記success不可數(shù)名詞,意為“成功”Successdependsonourefforts.成功取決于我們的努力?？蓴?shù)名詞,意為“成功的人或事”Themoviewasagreatsuccess.電影很成功。successful形容詞,意為“成功的”,在句中作定語或表語JackieChanisasuccessfulactor.成龍是一名成功的演員。successfully副詞,意為“成功地”,在句中作狀語Ifinishedthatdifficultworksuccessfully.我成功地完成了那份困難的工作。【活學(xué)活用】

①選詞填空:success/successful/succeed/successfully。(A)Justasthesayinggoes,“Failureisthemotherof__________”.(B)Cheerup,Jim.Ibelieveyoucanbe__________inthespeech.②Ifwehavenoknowledge,wecannot____________________________(成功完成)anywork.答案:①(A)success(B)successful②succeedinfinishing6.Weshouldnevergiveuptryingtoachieveourdreams.我們從不應(yīng)該放棄盡力去實(shí)現(xiàn)夢想?！咀灾黝I(lǐng)悟】(1)giveup“放棄”,后常跟名詞、代詞或動(dòng)詞-ing形式作賓語。giveup是“動(dòng)詞+副詞”結(jié)構(gòu)的短語,賓語是代詞時(shí),要置于give與up之間。例如:Holdonyourdreamsandnevergivethemup,children.孩子們,一定要堅(jiān)持自己的夢想永不放棄。(2)achieve是及物動(dòng)詞,意為“達(dá)到;完成;成功”。主語一般是人,后常接愿望、理想、夢想和目標(biāo)等。例如:Beckhamfinallyachievedhisdream.貝克漢姆最終實(shí)現(xiàn)了他的夢想。【歸納拓展】常見由give構(gòu)成的短語【活學(xué)活用】

①這是一個(gè)獲得教育的好機(jī)會(huì)。你不應(yīng)該放棄它。It’sagoodchancetogeteducation.Youshouldn’t________________________.②史密斯先生下定決心要戒煙。Mr.Smithmadeadecisionto________________________.答案:①giveitup②giveupsmoking知識(shí)點(diǎn)精練

6.SunshineTheaterisoneofthe

(expensive)theatersintown.7.ZhujiangRiveristhe

(long)inGuangdongProvince.8.Ofallthesaltlakes,theCaspianSeaisthe

(deep).答案:6.mostexpensive7.longest

8.deepestⅡ.句型轉(zhuǎn)換1.Thisisa2,500-meter-longriver.(改為同義句)Thisriveris2,500

.2.TheUSisnotaslargeasRussia.(改為同義句)Russiais

theUS.3.ThepopulationofAustraliais19,300,000.(對畫線部分提問)

thepopulationofAustralia?答案:1.meterslong2.largerthan

3.Whatis4.TheGreatWallisthelongestwall.(改為同義句)TheGreatWallis

anyotherwall.5.Qomolangmaisthehighestmountainintheworld.(對畫線部分提問)

thehighestmountainintheworld?答案:4.longerthan5.WhatisⅢ.完成句子1.長城縱貫中國北方地區(qū)。TheGreatWall________________thenorthernpartofChina.2.這些工人因?yàn)槲肓颂嗷覊m生病了。Theseworkersfellillbecausethey________________toomuchdust.答案:1.runsalong2.tookin

3.這些士兵在敵人面前很勇敢。Thesesoldierswerebrave_________________________________theenemies.4.每人都會(huì)實(shí)現(xiàn)夢想,只要他盡力。Everyonecan_______his_______ifhetrieshisbest.答案:3.inthefaceof4.achieve;dreamI.單項(xiàng)選擇1.Mybrotheris_____moreoutgoingthanme.A.manyB.littleC.much2.October12thwasoneof______daysin2008.Shenzhou-VIIwaslaunched(發(fā)射）successfully.A.excitingB.moreexcitingC.themostexciting3.Whichcityis______,Beijing,ShanghaiorFuzhou?A.beautifulB.morebeautifulC.themostbeautiful當(dāng)堂達(dá)標(biāo)測試

4._____childrenthereareinafamily,_____theirlifewillbe.A.Theless；thebetterB.Fewer；richerC.Thefewer；thebetter5.Mobilephonesareverypopularnowandtheyare______thanbefore.A.cheapB.cheaperC.thecheapest6.Inourcity,it’s_____inJuly,butit’seven___inAugust.A.hotter；hottestB.hot；hotC.hot；hotter7.Jack’shandwritingisas____asMike’s.A.goodB.betterC.best8.Wecandotheworkbetterwith____moneyand______people.A.little;fewB.less;fewerC.fewer;less9.JimisthetalleststudentinourclassandTomisthesecond______one.A.tallB.tallerC.tallestyoungernewerheaviertheheaviesthigherthehighestolderyoungertheyoungesttheoldestII.Finishthesentenceswiththerightformsoftheadjs.1.Kateisyoung,butJoeis_________.2.Myshoesarenew.Mysister’sare______thanmine.3.Herbagisheavy,andhisis______thanhers.Butyoursis___________ofall.4.Tom’skiteishigh.Jim’sis_______thanTom’s.Mike’sis__________ofthemall.5.Billisseven.JohnisnineandTomiseleven.Tomis______thanJohnandBill.Billis__________thanJohn.Billis____________andTomis_________ofthethree.hungryhungrierthenicestheavierheaviesthardharderthehardestbetterIII.Completethesentenceswiththerightformsofthewords.1.Jimisvery_______.LiLeiis________thanJim.(hungry)2.Kate’smooncakesare__________ofall.(nice)3.Yourboxis_______thanmine.Buthisisthe_______ofthethree(heavy).4.Unit2isquite_____.Unit3is_______thanUnit2.It’s__________inModule1.(hard)5.ThisTVplayis_______thanthatone.(good)busythebusiestearlierbestfarimportantthemostbeautifulworse6.Mymotherisvery______.Sheis____________inmyfamily.(busy)7.Linglinggetstoschool______