英语中表示倍数的常见句型.doc
3页英语中表示倍数的常见句型倍数表达法是高中英语教学的重点,也是历届高考的热点当我们要表达甲是乙的几倍时,通常用下面三个句型来表示:一. “倍数+形容词(或副词)的比较级+than+从句”表示“A比B大(长、高、宽等)多少倍”Thisropeistwicelongerthanthatone.这根绳是那根绳的三倍(比那根绳长两倍)Thecarrunstwicefasterthanthattruck.这辆小车的速度比那辆卡车快两倍(是那辆卡车的三倍)Thisstreetisfourtimesshorterthanthatone.这条街道比那条短四倍Themotherelephantisonehundredtimesheavierthanthebabyelephant.这只母象比小象重一百倍Itistentimeslouderthananother.它比另外一个的声音大十倍Thisstreetisthreetimeswiderthanthatone.这条街比那条街宽三倍Iamtwiceolderthanhe.我的年纪比他大两倍Theboxisone-thirdbiggerthanthatone.这个盒子比那个盒子大三分之一。
二. “倍数+as+形容词或副词的原级+as+从句”表示“A正好是B的多少倍”AsiaisfourtimesaslargeasEurope.亚洲的面积是欧洲的两倍Theplaneflewtentimesashighasthekite.那架飞机的飞行高度是那个风筝的十倍(高出九倍)Iamtwiceasoldashe.我的年纪是他的两倍ShestudiesthreetimesashardasI.她用功的程度是我的三倍Thislineisfourtimesaslongasthatone.这条线是那条线的四倍长Anordinarytrain,approachingthestation,canbetwiceasloudastheloudestjet.普通火车进站时发出的声音可能是喷射机的两倍MycommandofEnglishisnothalfsogoodasyours.我英语掌握得还不及你的一半儿好三. “倍数+thesize/height/length/width,etc.+of・・・"表示“A正好是B的多少倍”Thisstreetisfourtimesthelengthofthatone.这条街是那条街的四倍长。
Thishillisfourtimestheheightofthatsmallone.这座山的高度是那座山的四倍(比那座山高三倍)LineAisfourtimesthelengthoflineB.线条A是线条B的四倍长IhavefivetimesthenumberofTom'sbooks.我有五倍于汤姆的书TheriveristentimesthelengthoftheTamsuiRiver.这条河的长度是淡水河的十倍Itwasovertwicethedistanceoftheearthfromthesun.那是地球到太阳的距离的两倍多Theearthis49timesthesizeofthemoon.地球的体积是月球的49倍Thisriveristhreetimesthedepthofthatone.这条河深度是那条河的三倍下边也可看作是这种句式的变化:Thelengthoftheroadisfourtimeswhatitwasthreeyearsago.这条路的长度是三年前的4倍Thepriceofthemeatistwicewhatitwaslastyear.肉价是去年的两倍Thesizeofthesunisamilliontimesoverthatoftheearth.太阳的体积比地球的体积大一百万倍。
InthisworkshoptheoutputofJulywas3.5timesthatofJanuary.七月份的产量是元月份的3.5倍Theprincipaladvantageoftheproductsisatwo-foldreductioninweight.这些产品的主要优点是重量减轻了2倍I'vepaidfivetimestheusualpriceforthestamp.我出了5倍于往常的价格买这枚邮票Theaverageincomeofthestaffhasbeenincreasedby50percentcomparedwithlastyear.职工的收入增加了50%.Asurveyshowsthatcoveragerateshaveincreasedbyfromtwo-foldtofour-fold.调查表明,覆盖率已由两倍增至四倍除掌握倍数表达的三个常规句型外,我们更要注意的是其常规句型的变形及其特殊规律四、常规倍数句型的变形(共七种)一)倍数+times+more+名词(可数,不可数)+than…Therearefivetimesmorebooksinourlibrarythaninyours.我们图书馆里的书比你们图书馆里的书多五倍。
Wehaveproducedtwicemoregrainthisyearthanwedidlastyear.我们今年生产的粮食是去年的两倍Heearnsfivetimesmoremoneythanhedidtenyearsago.他现在挣的钱比十年前挣的多5倍Therearetwicemorestudentsinourclassthanintheirs.我们班的学生人数比他们班多两倍二)倍数+timesasmany/much+名词+as・・・asThereisfourtimesasmuchwaterinthispotasinthatone.Therearesixtimesasmanystudentsasweexpected.Heearnstwiceasmuchasheusedto.他比往常多赚二倍的钱We'veproducedtwiceasmuchcottonthisyearastenyearsago.今年的棉花比十年前多了一倍Hehasgotthreetimesasmanybooksashissister.他拥有的书的数量是他妹妹的三倍Shespenthalfasmuchmoneyasyou.她花掉的钱只有你花掉的一半。
需要时还可以在倍数词前,加over,morethan等表示“是的多少倍还要多”例如:Chinaismorethanthreetimesasrichasitusedto.中国的财富是过去的三倍还不止Iammorethantwiceasoldashe.我的年龄是他的两倍还不止HestudiesmorethanthreetimesashardasI.他用功的程度是我的三倍还不止HehascollectedmorethanthreetimesasmanystampsasI.他搜集的邮票是我的三倍还不止三)倍数+timesover+被比对象,表示“增加倍”ThepriceofTVsaretwofolddownovertheseyears.近几年来,电视机的价格下降了两倍四)•••times+thatof+被比对象,表示“是倍”Thegrainoutputinthatvillageistwiceoverthatof2002.Lastyeartheoutputvalueofindustrywas59percenthigherthanthatof1976.去年工业产值比1976年增长了59%Inthisworkshop,theoutputofJulywas4.5timesthatofJanuary.五)•••times+comparedwith+被比对象...by+倍数词Thenumberofthestudentsinourschoolhasincreased4timescomparedwith1980.我们学校的学生人数比1980年增加了三倍。
Comparedwithlastyear,ourcoaloutputhasincreasedbythreetimes.与去年相比,我们的煤产量增长了3倍使用by...)Thenumberofthestudentsinourschoolhasincreasedfourtimescomparedwith1980.我们学校的学生人数比1980年增加了3倍使用comparedwith)Hisspeedisfasterthanminebyfourtimes.他的速度比我的快4倍Theproductionofsteelhasbeenincreasedtothreetimescomparedwithlastyear.钢铁的产量比去年增加了两倍六)英语中有些词表示特定的倍数,例如:again(一倍),two-fold,twice,double俩倍),triple(三倍),fourfold(四倍)等数MyAuntisasoldagainasIam.我姑姑的年龄比我大一倍ShehasasmuchagainexperienceasI.她的经验比我的多一倍Thetop-brandclothesareoftensoldasdoublethenormalpricehere.售价经常比正常的售价高一倍。
Thenewworkproceduretripledtheoutput.新工艺使产量增加两倍Theoutputofgrainincreasedfourfold.粮食产量增加了三倍七)•••times+what+从句Theproductionisnowthreetimeswhatitwastenyearsago.。





