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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,英语倍数表示法,1/19,一、用,times,表示倍数,1.“A+be+,倍数,+as+,计量形容词原级,+as+B”,。,This,tree is three times as tall as,that one.,这棵树是那棵树三倍高。,His father,is twice as old as,he.,他父亲年纪有他两倍大。,2/19,2.“A+be+,倍数,+,计量形容词比较级,+than+B”,The Yangtze River,is almost twice longer than,the Pearl River.,长江差不多比珠江长两倍。,The,dictionary is exactly five times more expensive than,that one.,这本字典比那本恰好贵,5,倍。,3/19,3.“A+be+,倍数,+the+,计量名词,+of+B”,The newly broadened square,is four times the size of,the previous one.,新扩建广场是未扩建时四倍大。,Thishill,isfourtimestheheightof,that smallone,这座山高度是那座小山四倍。（比那座小山高三倍）,4/19,4.“The+,计量名词,+of+A+be+,倍数,+that+of+B”,The size of,the newly broadened square,is four times that of,the previous one.,新扩建广场为以前四倍大。,Theheightof,thishill,isfourtimesthatof,thatsmallone,5/19,5.“times+as many,（或,much,）名词,as”,比如：,Weve produced,twice as much,cotton this year,as,（,we did,）,ten years ago.,今年我们生产棉花比十年前多了一倍。（汉语中多一倍实际上也指两倍一样多。）,He has got,three times as many,books as his sister.,他拥有书数量是他妹妹,3,倍。,6/19,6.“times+what,从句”比如：,The length of the road,is four times what it was,three years ago.,这条路长度是三年前,4,倍。,The price of the meat,is twice what it was,last year.,肉价是去年两倍。,7/19,7.“times+up on,（或,over,）,”,比如：,The size of the sun is,a million times over that of,the earth.,太阳体积比地球体积大一百万倍。,He is,three times up on,your age.,他年纪是你,4,倍（或：比你年纪大,3,倍）。,8/19,8.“+by+times”,比如：,Compared with last year,，,our coal output has increased,by three times,.,与去年相比，我们煤产量增加了,3,倍。,His speed is faster than mine,by four times,.,他速度比我快,4,倍。,9/19,二、用分数、百分数表示倍数,The box is one-third bigger than that one.,这个盒子比那个盒子大三分之一。,Last year the output value of industry was 59 percent higher than that of 1976.,去年工业产值比,1976,年增加了,59,。,My command of English is not half so good as yours.,我英语掌握得还不及你二分之一儿好。,10/19,三、用,again,（一倍），,double,（两倍），,triple,（三倍），,fourfold,（四倍）等词表示倍数,。,My Aunt is as old again as I am.,我姑姑年纪比我大一倍。,The top-brand clothes are often sold as double the normal price here.,这里名牌衣服售价经常比正常售价高一倍。,The new work procedure tripled the output.,新工艺使产量增加两倍。,The output of grain increased fourfold.,粮食产量增加了三倍。,11/19,exercises,1.Americans eat _ fruits per person today as they did in 1910.,A.more than twice,B.as twice as many,C.twice as many as,D.twice as many,D,12/19,2.Paper produced every year is _ the worlds production of vehicles.,A.the three weight of,B.three times the weight of,C.as three times heavy as,D.three times as heavier as,B,13/19,3.With the help of the German experts,，,the factory produced _ cars in 1993 as the year before.,A.as twice many B.as many twice,C.twice as many D.twice many as,C,14/19,4.This ship measures _ that one.,A.as twice as long,B.as twice long as,C.twice long as,D.twice as long as,D,15/19,5.After the new technique was introduced,，,the factory produced _ tractors in 1988 as the year before.,A.as twice many,B.as many as,C.as twice as many,D.twice as many,D,16/19,练习把以下句子译成汉语。,1.,一米是一英尺三倍多。,2.,现在我们故乡学校数量比解放前,增加了,四倍。,3.,北京有我故乡城市十个那么大。,4.,这个房子是那个房子两倍大。,5.,早稻产量比去年提升百分之二十五。,17/19,依据第一句,完成第二、三句,每空填一词,使句意不变。,1.Thisriveristhreetimesaswideasthatone.,Thisriveris_timesthe_ofthatone.,Thisriveris_thanthatone.,2.Themeetingroomisthreetimesbiggerthanouroffice.,Themeetingroomis_timesas_asouroffice.,Themeetingroomis_timesthe_ofouroffice.,3.Thenewbuildingisfivetimestheheightoftheoldone.,Thenewbuildingis_timesas_astheoldone.,Thenewbuildingis_times_thantheoldone.,18/19,答案,A,）,1.Ametreis3timesthelengthof afoot.,2.Therearenowfivetimesasmanyschoolsinmyhometownasbeforeliberation.,3.Beijingistentimesasbigas,（,ninetimeslargerthan,tentimesthesizeof,）,myhometown.,4.Thishouseistwiceaslargeasthatone,5.Theoutputofearlyriceis25,theheightoflastyears.,B,1.three,width;twicewider2.four,big;four,size3.five,high;four,higher,19/19,
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