英语倍数的用法

一、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twice。）。其句型有:1....times＋形容词（副词）比较级＋than...Thishallisfivetimesbiggerthanourclassroom.这个大厅比我们的教室大五倍。（是我们教室的六倍大）Thecarrunstwicefasterthanthattruck.这辆轿车的速度比那辆卡车快两倍。（是那辆卡车的三倍快）2....times＋as＋形容词（或much）或副词原级＋as...Thebigboxisfourtimesasheavyasthesmallone.大箱子是小箱子的四倍重。AsiaisfourtimesaslargeasEurope.亚洲的面积是欧洲的四倍。Tenistwiceasmuchasfive.十是五的两倍。Theplaneflewtentimesashighasthekite.那架飞机飞行高度是那个风筝的十倍。（高出九倍）3....times＋the＋名词（size,height,weight,length,width）＋ofYourplaygroundis900metreswide,threetimesthesizeofours.你们操场有900米宽,是我们的三倍。Thisstreetisfourtimesthelengthofthatone.这条大街是那条街的四倍长。Thisbigtreeisfourtimestheheightofthatsmallone.这棵大树的高度是那棵小树的四倍。（比那棵小树高三倍）也可译成:Theheightofthebigtreeisfourtimesthatofthatsmallone.4....times＋more＋名词（可数,不可数）＋than...Therearefourtimesmorebooksinourlibrarythaninyours.我们图书馆藏书（数量）是你们图书馆的四倍。（多三倍）Wehaveproducedtwicemoregrainthisyearthanwedidlastyear.我们今年生产的粮食比去年增长一倍。（是去年的两倍）5....times＋asmany（或much）＋名词＋其它……Thereisthreetimesasmuchwaterinthispotasinthatone.这个壶里的水（量）是那个壶里的三倍。Therearefivetimesasmanystudentsasweexpected.到的人是我们预计的五倍。6....times＋over＋被比对象表示“增加……倍”。如:Thegrainoutputinthatvillagewastwiceoverthatof1978.那个村的粮食产量比一九七八年的增加了两倍。7....times＋thatof＋被比对象“是……倍”。如:Inthisworkshop,theoutputofJulywas3.5timesthatofJanuary.这个车间七月份的产量是元月份的三点五倍。Itwillnotbeasstrongapullastheearth’s.Ican'tbuyasgoodabookasthatone.Youhaveasmanybooksashedoes.