2014英语八下Unit 7 全单元-课件（PPT-精）PPT格式课件下载.pptx

2014英语八下Unit 7 全单元-课件（PPT-精）PPT格式课件下载.pptx

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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。

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。

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.?

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。

Theroomismuchcleanerthanthatone.这个房间比那个