倍数”的常用表达方式用times表示倍数（一般限于包括基数在内三倍或三倍以上的数表示两倍的数，一般用twice）其句式有：1.“…times＋形容词/副词的比较级＋than…”例如：LineABisthreetimeslongerthanlineCD.线段AB是（线段）CD的三倍长Thishallisfivetimesbiggerthanourclassroom.这个大厅比我们的教室大5倍2.“…times+as+形容词/副词的原级＋as…”例如：Thistableisthreetimesaslongasthatone.这张桌子是那张桌子的三倍长Thisdictionaryisfivetimesasthickastheoneyouborrowedfromthelibrary.这本词典的厚度是你从图书馆借的那本（厚度）的5倍3. “…times+the+名词（如：size，height，weight，length，width等）＋of…”例如：Theearthis49timesthesizeofthemoon.地球的体积是月球的49倍Thisriveristhreetimesthedepthofthatone.这条河是那条河的三倍深。
4. “…times+more＋名词＋than…”例如：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5. “…times+asmany（或much）＋名词＋as…”例如：We'veproducedtwiceasmuchcottonthisyearas（wedid）tenyearsago.今年我们生产的棉花比十年前多了一倍汉语中的多一倍实际上也指两倍一样多Hehasgotthreetimesasmanybooksashissister.他拥有的书的数量是他妹妹的3倍6. “…times+what从句”例如：Thelengthoftheroadisfourtimeswhatitwasthreeyearsago.这条路的长度是三年前的4倍Thepriceofthemeatistwicewhatitwaslastyear.肉价是去年的两倍7. "...廿mes+upon（或over）...”例如：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）8. “.+by+.times”例如：Comparedwithlastyear，ourcoaloutputhasincreasedbythreetimes.与去年相比，我们的煤产量增长了3倍Hisspeedisfasterthanminebyfourtimes.他的速度比我的快4倍9. “.times+comparedwith＋被比较对象”例如：Thenumberofthestudentsinourschoolhasincreasedfortimescomparedwith1980.我们学校的学生人数比1980年增加了3倍10. “.times+thatof+被比较对象”例如：InthisworkshoptheoutputofJulywas3.5timesthatofJanuary.这个车间七月份的产量是元月份的3.5倍二、用分数、百分数表示倍数例如：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三、用again（一倍），double（两倍），triple（三倍），fourfold（四倍）等词表示倍数例如：MyAuntisasoldagainasIam.我姑姑的年龄比我大一倍Thetop-brandclothesareoftensoldasdoublethenormalpricehere.这里名牌衣服的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［巩固练习］1. Americanseatvegetablesperpersontodayastheydidin1910.A.morethantwiceB.astwiceasmanyC.twiceasmanyasD.morethantwiceasmany2. Paperproducedeveryyearistheworld'sproductionofvehicles.A.thethreeweightofB.threetimestheweightofC.asthreetimesheavyasD.threetimesasheavieras3. WiththehelpoftheGermanexperts，thefactoryproducedcarsin1993astheyearbefore.A.astwicemanyB.asmanytwiceC.twiceasmanyD.twicemanyas4. Thisshipmeasuresthatone.A.astwiceaslongB.astwicelongasC.twicelongasD.twiceaslongas5. Afterthenewtechniquewasintroduced，thefactoryproducedtractorsin1988astheyearbefore.A.astwicemanyB.asmanyasC.astwiceasmanyD.twiceasmanyKey：1－5DBCDD。