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Unit5What’sthehighestmountainintheworld?SectionAPeriodOneⅠ.Tolearnnewwords:square,meter,deep,desert,Ⅱ.Tolearntotalkaboutgeographyandnature.What’sthehighestmountainintheworld?Howhighisit?Doyouknow?Qomolangmaisthehighestmountainintheworld.Itis8,844.43metershigh.Whatdoyouknowaboutthefollowingnumbers?1,025metersdeepTheCaspianSeaWhatdoyouknowaboutthefollowingnumbers?6,671kilometerslongTheNileWhatdoyouknowaboutthefollowingnumbers?9,600,000squarekilometersinsizeTheSaharasquaren.平方metern.米deepadj.深的desertn.沙漠Matchthefactsyouknow.1aQomolangmaTheSaharaTheCaspianSeaTheNileabout9,600,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,844.43metershighListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais_________desertintheworld.3.TheCaspianSeais_________ofallthesaltlakes.4.TheNileis_________riverintheworld.1bhigherthebiggestthedeepestthelongestA:Whatisthehighestmountainintheworld?B:Qomolangma.1cPairworkUsetheinformationin1btomakeconversations.A:Whatisthebiggestdesertintheworld?B:TheSahara.Makeupyourownconversations.Example1:A:Whatisthelongestriverintheworld?B:TheNile.Example2:一写出下列单词的比较级和最高级1.good2.comfortable3.big4.happy5.cheap6.many7.difficult8.little1.good2.comfortable3.big4.happy5.cheap6.many7.difficult8.littlebetterbestmore～most～biggerbiggesthappierhappiestcheapercheapestmoremostmore～most～lessleast1.Lilygetsup______(early)thanLucy.2.Whichgoes__________(slowly),TomorJim?3.Thisbookis_______________(interesting)thanthatone.earliermoreslowlymoreinteresting二根据所给词的适当形式填空4.Sheworks________________(careful)inherschool.5.Whogoestobed_________(late)Jim,TomorJack?6.Ithinkturkeyis________________(delicious)ofall.themostcarefullylatestthemostdeliciousSectionAPeriodTwoⅠ.Tolearnnewwords:population,Asia,tour,tourist,wall,ancient,protect,wide…Ⅱ.Tolearntoexpresslargenumbers.Ⅲ.Tolearntousethephrase:feelfree,asfarasIknow.populationn.人口Asian.亚洲tourv.n.旅行touristn.旅行者walln.墙amazingadj.令人大为惊奇的ancientadj.古代的wideadj.宽的；宽阔和数词是用来表示事物的数目和顺序的词。数词的分类：1.基数词2.序数词3.分数词今天我们先来学习一下基数词。1.复习1—100以内的所有数字。2.掌握百、千、万、十万、百万的表达法。1.1-19的基数词one1two2three3four4five5six6seven7eight8nine9ten10eleven11twelve12thirteen13fourteen14fifteen15sixteen16seventeen17eighteen18nineteen192.20—90等十位数twenty20thirty30forty40fifty50sixty60seventy70eighty80ninety90twenty-one21twenty-two22………………其它的十位数照此类推，如：thirty-one31forty-two42seventy-five75ninety-six963.百、千、万百hundred100onehundred200twohundred以此类推····千thousand1000onethousand2000twothousand万也用thousand表示。如：10000tenthousand一万20000twentythousand两万·····4.十万、百万十万的说法是：100.000a(one)hundredthousand200.000twohundredthousandmillion百万a(one)million1,000,000twomillion2,000,000········以此类推······8,000,000eightmillion练一练345100118,657,421threehundredandforty-fiveonethousand(and)oneeighteenmillion,sixhundredandfifty-seventhousand,fourhundredandtwenty-one1.Theprojectlasted5yearsandcost2billiondollars.2.TheChinesehavebeenmakingpaperfortwothousandyears.3.Onethousandpoundsisalotofmoney.表示确定数量时用基数词+hundred，thousand，million，billion多位基数词读法457890608389threehundredandeighty-ninefourhundredandfifty-seveneighthundredandninetysixhundredandeight1）101~999的三位数由“百位数＋and+两位数组成”。如：325—threehundredandtwenty-five102onehundredandtwo635sixhundredandthirty-five确切数目与不确切数目的表达：hundred,thousand,million,billion等前面有基数词，表示确切数目时，用单数，后直接接复数名词；如：threehundredbooksonehundredpeoplefivethousandstudentssevenmillionstartsListenandnumberthefacts[1-4]intheorderyouhearthem.__TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris________kilometerslong.__Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.__Chinaisover_____yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.__ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.2a1432__TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris_____kilometerslong.__Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.__Chinaisover_____yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven____yearsold.__ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.Listenagainandfillintheblanksin2awiththenumbersinthebox.2b6,3005,4645,0003006,3005,0005,4643001432A:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.2cPairworkMakeconversationsusingtheinformationin2a.A:DidyouknowthatChinahasthebiggestpopulationintheworld?B:Yes,Idid.It’salotbiggerthanthepopulationoftheUS.Example1:Makeupyourownconversations.A:DidyouknowthatChinaisthebiggestcountryinAsia?B:Yes,Idid.It’salmostasbigastheUS.Example2:Makeupyourownconversations.A:DidyouknowthatYangzeRiverismuchlongerthantheYellowRiver?B:No,Ididn’t.Howlongisit?A:It’s6,300kilometerslong.B:Wow!That’sverylong!Example3:2dPairworkRole-playtheconversation.Guide:Feelfreetoaskmeanythingontoday’sGreatWalltour.Tourist1:Howlongisthewall?Guide:Ah,themostpopularquestion!Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.Tourist2:Wow,that’samazing!Whydidtheancientemperorsbuildthewall?Guide:T