英语倍数练习题及答案

英语倍数练习题及答案(1)倍数as...as(意思是“A是B的几倍”。)Iamtwiceasoldashe.我的年纪是他的两倍。Heearnstwiceasmuchasheusedto.他比往常多赚二倍的钱。Anordinarysubwaytrain,approachingthestation,canbetwiceasloudastheloudestjet.发出的声音可能是喷射机的两倍。ShestudiesthreetimesashardasI.她用功的程度是我的三倍。Thislineisfourtimesaslongasthatone.这条线是那条线的四倍长。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。在比较级前，还可以用over，morethant等表示“比……倍还要多”。例如：HeismorethanthreetimesasrichasI.他的财富是我的三倍还不止。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。(2)倍数+比较级(意思是：A是B的几倍)LineAisfourtimesthelengthoflineB.线条A是线条B的四倍长。IhavefivetimesthenumberofTom’sbooks.我有五倍于汤姆的书。Hehasthreetimesmymoney.他的钱是我的三倍。TheriveristentimesthelengthoftheTamsuiRiver.这条河的长度是淡水河的十倍。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。使用more...than比较级的例句：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。比较级也可使用分数、小数等数字。例如：Theboxisone-thirdbiggerthanthatone.这个盒子比那个盒子大三分之一。Lastyeartheoutputvalueofindustrywas59percenthigherthanthatof1976.去年工业产值比1976年增长了59％。MycommandofEnglishisnothalfsogoodasyours.我英语掌握得还不及你的一半儿好。在比较级前，还可以用over，morethant等表示“比……倍还要多”。例如：Itwasovertwicethedistanceoftheearthfromthesun.那是地球到太阳的距离的两倍多。Hehasmorethanthreetimesmymoney.他的钱是我的三倍还不止。2、倍数+the度量词of...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。Heisthreetimesuponyourage.他的年龄是你的4倍(或：比你的年龄大3倍)InthisworkshoptheoutputofJulywas3.5timesthatofJanuary.七月份的产量是元月份的3.5倍3、其它表示法(1)英语中有些词表示特定的倍数，例如：again(一倍),twice,double(两倍),triple(三倍),fourfold(四倍)等数。MyAuntisasoldagainasIam.我姑姑的年龄比我大一倍。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。(2)使用by,comparedwith等Comparedwithlastyear，ourcoaloutputhasincreasedbythreetimes.与去年相比，我们的煤产量增长了3倍。(使用by...)Hisspeedisfasterthanminebyfourtimes.他的速度比我的快4倍。Thenumberofthestudentsinourschoolhasincreasedfourtimescomparedwith1980.我们学校的学生人数比1980年增加了3倍。(使用comparedwith)Theproductionofintegratedcircuitshasbeenincreasedtothreetimesascomparedwithlastyear.集成电路的产量比去年增加了两倍。Theprincipaladvantageoftheproductsisatwo-foldreductioninweight.这些产品的主要优点是重量减轻了1／2。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%.ThepriceofTVsaretwofolddownovertheseyears.近几年来，电视机的价格下降了两倍。Shespenthalfasmuchmoneyasyou.她花掉的钱只有你花掉的一半。[练一练]1.Americanseat________vegetablesperpersontodayastheydidin1910.A.morethantwiceB.astwiceasmanyC.twiceasmanyasD.morethantwiceasmany2.Paperproducedeveryyearis_______theworld'sproductionofvehicles.A.thethreeweightofB.threetimestheweightofC.asthreetimesheavyasD.threetimesasheavieras3.WiththehelpoftheGermanexperts，thefactoryproduced______carsin1993astheyearbefore.A.astwicemanyB.asmanytwiceC.twiceasmanyD.twicemanyas4.Thisshipmeasures________thatone.A.astwiceaslongB.astwicelongasC.twicelongasD.twiceaslongas5.Afterthenewtechniquewasintroduced,thefactoryproduced_______tractorsin1988astheyearbefore.A.astwicemanyB.asmanyasC.astwiceasmanyD.twiceasmany[Key：DBCDD]