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1、SectionA1a—1cUnit7What'sthehighestmountainintheworld?百位数的读法700503946SevenhundredFivehundredandthreeNinehundredandforty-six英语数字的读法5122648千位数的读法2,0001,0256,6718，844.43TwothousandOnethousandandtwenty-fiveSixthousandsixhundredandseventy-oneEightthousandeighthundredandforty-fourpointforty-three万位数（十千）
2、的读法10,000----tenthousand20,001----twentythousandandone30,010----thirtythousandandten70,111----seventythousandonehundredandeleven51,111---fifty-onethousandonehundredandeleven百万的读法9,600,000Ninemillionandsixhundredthousand111,121,435,678111,121,435,678billionmillionthousandonehundredelevenbillionone
3、hundredtwentyonemillionfourhundredthirtyfivethousandsixhundredandseventyeight十亿的读法Keypoints.1.TheSaharaisabout9,600,000squarekilometersinsize.基数词+squarekilometersinsize……平方公里规模2.基数词+meters/kilometers+long/wide/deep/high……米/千米长/宽/深/高长度、宽度、高度、深度的表示法老虎路有200米长.TigerPathis200meterslong.长度、宽度、高度、深度的表示法
4、，有一个专门的结构，那就是“基数词+单位词+形容词”Practice教室有25英尺长，20英尺宽。Theclassroomis25feetinlengthand20feetinwidth.2.除了以上的表示方法，有时也可以用“基数词+单位词+in+长度或者重量的名词”来表示长度、宽度、高度、深度。若表示重量，可以用inweight结构。PracticeQomolangmaishigherthananyothermountainintheworld.anyother是指在同一范围内除了某人或某物以外的其他人或事物，anyother后跟单数名词，也可以说anyoftheother+复数名词。
5、Tomrunsfasterthananyotherstudentinhisclass./Tomrunsfasterthananyoftheotherstudentsinhisclass./Tomrunsthefastestinhisclass.Keypoints.PracticeHow+high/deep/long/wide…+be+主语？HowhighisQomolangma?HowdeepisCaspianSea?HowlongisTheNile?Howwideistheroad?HowhighisQomolangma?It’s8,844.43metershigh.Howlongis
6、TheNile?It’s6,671kilometerslong.howdeepistheCaspianSea?Itis1,025metersdeep.HowbigisTheSahara?Itis9,600,000squarekilometersinsize.翻译句子1.这张桌子两米长，一米宽。2.这座山有1500米高。3.这栋楼120米高。4.这个湖有多深？1025米深。Thetableistwometerslongandonemeterwide.(twometersinlengthandonemeterinwidth)Themountainis1,500metershigh.Thebu
7、ildingis120meterstall.Howdeepisthelake?It’s1,o25metersdeep.Finishthesentenceswiththerightformsoftheadjs.1.Kateisyoung,butJoeis_______.2.Myshoesarenew.Mysister’sare______thanmine.3.Herbagisheavy,andhisis______thanhers.B
