Unit7What’sthehighestmountainintheworld?GrammarFocusGrammarFocusWhat'sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It's8,844.43metershigh.It'shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It'smucholderthantheUS.4a.Fillintheblankswiththecorrectformsofthewordsinthebox.1.TheAmazonRiverisoneofthe_________riversintheworld.It’salittle________thantheYangtzeRiver.2.Qomolangmais8,844.43meters_______.bigmuchpopularlongoldhighlongestlongerhighIt’soneofthemost__________placesforseriousmountainclimbers.3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis__________thanCanada,itis_________smaller.popularbigoldermuche.g.Tworivers：_________________and________________________________________________________________________________________________________________________________________________4b.Writetwocomparisonsabouttwotopics.Writetruefacts.theYangtzeRivertheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina.Twocities：__________and__________1.______________________________________2.___________________________________________________________________________Twoanimals：__________and__________1.______________________________________2.___________________________________________________________________________4c.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1.____________________________________2.____________________________________3.____________________________________4.____________________________________5.____________________________________Whatisthehighestbuildinginourcity?Whoistheoldestpeopleinourcity?Whatisthemostpopularstreetinourcity?Whatisthemostdeliciousfoodinourcity?Whereisthebusiestroadinourcity?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。GrammarFocusGrammarFocus(一)数词Numeral1.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·········英语里没有“万”这一单位，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-five2)三位数以上的数，从个位往前数，每三位数加一个逗号，从后往前数的第一个逗号代表thousand,第二个逗号代表million,第三个逗号是billion，注意这几个词不能用复数形式，后也不能加and。例如：2,648twothousand,sixhundredandforty-eight16,250,064sixteenmillion,twohundreda...
