2014英语八下Unit 7 全单元-课件(PPT-精).pptx
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2014英语八下Unit 7 全单元-课件(PPT-精).pptx
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Unit7Whatsthehighestmountainintheworld?
SectionAWhatsthehighestmountainintheworld?
Whatsthelargestdesertintheworld?
Whatsthelongestriverintheworld?
LeadinHowhighisQomolangma?
Its8,844metershigh.TheheightofQomolangmais8,844.43meters.Thehighestmountainintheworldis8,844.43metershigh.ThelongestrivertheNileThebiggestsaltlakestheCaspianSeaThebiggestdesertintheworldtheSaharaHowbigistheSahara?
Itsabout9,600,000squarekilometersinsize.Thebiggestdesertintheworldisabout9,600,000squarekilometersinsize.Qomolangmaabout9,600,000squarekilometersinsizeTh1eaSMahaatrcahthefactsyoukn1,o0w25.metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1bListenandcompletethesentences.1.Qomolangmaishigherthananyothermountainintheworld.2.TheSaharaisthebiggestdesertintheworld.3.TheCaspianSeaisthebiggestofallthesaltlakes.4.TheNileisthelongestriverintheworld.2aListenandnumberthefacts1-4intheorderyouhearthem.6,3005,0005,4643001TheYangtzeRiverisaboutkilometerslongandtheYellowRiveriskilometerslong.4Chinahasthebiggestpopulationintheworld.ItsalotbiggerthanthepopulationoftheUS.3Chinaisoveryearsold.IthasamuchlongerhistorythantheUS.TheUSisnotevenyearsold.2ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.longandtheYellowRiveriskilometerslong.2bListenagainandfillintheblanksin2awiththenumbersinthebox.1TheYangtzeRiverisabout6300kilometers5,4644Chinahasthebiggestpopulationintheworld.ItsalotbiggerthanthepopulationoftheUS.3Chinaisover5,000yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven300yearsold.2ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.2cMakeconversationsusingtheinformationin2a.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?
Yes,Idid.Itsmucholderthanmycountry.2dRole-playtheconversation.3aReadthearticleandmatcheachparagraphwiththemainideas.Pragraph1Pragraph2Pragraph3SpiritofclimbersAchievementsofclimbersFactsanddangersParagraph1Paragraph2Paragraph1&3List3fobuRreadtheLairsttitchlreeeagainandcomLipstleftoeurthechart.dangersforachievementscomparisonsclimbersthickclouds1953-TenzingNorgayandEdmundHillarywerethefirsttoreachthetopmostdangeroussportsnow,freezingweatherandheavystorms1960-thefirstChineseteam1975-thefirstwomanthepopularplacesthehighestmountainthemostfamous3cAnswerthequestionsusinginformationinthearticle.1.WherearetheHimalayas?
TheyrunalongthesouthwesternpartofChina.2.HowhighisQomolangma?
8,844.43metreshigh.3.Whydosomanypeopletrytoclimbthismountaineventhoughitisdangerous?
Becausepeoplewanttochallengethemselvesinthefaceofdifficulties.4.Whatdoesthespiritoftheclimberstellus?
Weshouldnevergiveuptryingtoachieveourdreams.Grammar形容词和副词的比较级和最高级形容词和副词的比较级和最高级(规则变化)单音节词和少数多音节词一般在词尾加-er或-est原级比较级最高级highstrongfastslowhigherhigheststrongerstrongestfasterfastestslowerslowest以字母e结尾的词,加-r或-st原级比较级最高级finelatefinerfinestlaterlatest以“辅音字母+y”结尾的双音节词,先改“y”为“i”再加-er或-est原级比较级最高级easyluckyearlyeasiereasiestluckierluckiestearlierearliest多音节词和部分双音节词在词前加more或most原级比较级最高级deliciousinterestingeasilycarefullymoredeliciousmostdeliciousmoreinterestingmostinterestingmoreeasilymosteasilymorecarefullymostcarefullylessfartherfurtherleastfarthestfurthest原级(不规则变化)比较级最高级betterbestworseworstmoremostgood/wellbad/badlymany/muchlittlefar1.Qomolangmais8,844.43metershigh.珠穆朗玛峰高8844.43米。
TheCaspianSeais1,025metersdeep.里海深1025米。
TheNileis6,671kilometerslong.尼罗河长6671千米。
知识点精讲【自主领悟】数词+meters(kilometers)+long(high/tall/wide/deep/thick/heavy.),是英语中表示计量的方法,其中表示人、树的高度用tall,表示物体的高度用high。
例如:
MyEnglishteacheris1.82meterstall.我的英语老师高一米八二。
【归纳拓展】英语中表示计量的其他方法长、宽、高还可以用复合形容词,即“数字+量词(单数)+long/wide/high.”表达,中间加连字符,常用作定语。
例如:
Thisisaten-meter-widestreet,andthetrafficisbusy.这条路宽十米,交通繁忙。
【活学活用】黄河长5464千米。
TheYellowRiveris5,464.死海约深392米。
TheDeadSeaisabout392.Themountainis1,500metershigh.(改为同义句)Itisamountain.答案:
kilometerslongmetersdeep1,500-meter-high2.Chinahasthebiggestpopulationintheworld.中国有世界上最多的人口。
【自主领悟】population意为“人口”,为不可数名词,在表示人口“多”“少”时,用large(big)和small修饰。
特指某一地区或某一国家的“人口”时,其前常加定冠词the。
例如:
Thepopulationofmyhometownissmall.我家乡的人口很少。
【归纳拓展】population的不同用法population作主语时,谓语动词常用单数形式,但如果有分数或百分数等修饰时谓语动词用复数形式。
问某地人口多少常用Whatsthepopulationof.?
例如:
WhatsthepopulationofSouthAfrica?
南非的人口是多少?
【活学活用】加拿大的人口是多少?
ofCanada?
印度人口相当多。
ThepopulationofIndiaso.新加坡四分之三的人口是中国人。
ThreequartersofthepopulationinSingaporeChinese.答案:
Whatsthepopulationis;large/bigare3.Chinaisover5,000yearsold.IthasamuchlongerhistorythantheUS.中国有五千多年的历史,比美国历史要长得多。
【自主领悟】表示两者比较时用比较级,longer是形容词long的比较级,修饰比较级常用much,alot或是alittle等。
例如:
Theroomismuchcleanerthanthatone.这个房间比那个
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