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倍数表达法,本课件尽量收集更多的相关的倍数表达法，也罗列一些易错题。（张Arthur整理）,一、提分句型：表示“倍数的必备句型”1Ais倍数times比较级thanBThetrainrunssixtimesfasterthantheboat.2Ais倍数timesas原级asBThisgardenistentimesaslargeasthatone.,火车比轮船快六倍。,这个花园是那个花园的十倍大。,3Ais倍数timesthesize(height,length.)ofBTheirnewlybuiltschoolisalmostfivetimesthesizeofourswhichwasbuilttenyearsago.Theirnewlybuiltschoolisalmostourswhichwasbuilttenyearsago.Theirnewlybuiltschoolisalmostourswhichwasbuilttenyearsago.他们新修建的学校几乎是我们十年前修建的学校的两倍大。,fivetimesasbigas,fourtimesbiggerthan,4.“times+more名词than”Heearnshedidtenyearsago.他现在挣的钱比十年前挣的多5倍,fivetimesmoremoneythan,5.“times+asmany（或much）名词as”例如：Weveproducedthisyearas（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。）,twiceasmuchcotton,6.“times+what从句”例如：这条路的长度是三年前的4倍。Thelengthoftheroadisfourtimesthreeyearsago.,whatitwas,7.“+by+times”例如：Comparedwithlastyear，ourcoaloutputhasincreased.与去年相比，我们的煤产量增长了3倍。,bythreetimes,8.“比较级+than+by+times”例如：ThetimeIspentishespentbythreetimes,morethanthat,我花费的时间是他花费时间的三倍,9.“times+thatof+被比较对象”例如：InthisworkshoptheoutputofJulywas3.5times.这个车间七月份的产量是元月份的3.5倍。,thatofJanuary,10.“multiply+.times”和“bemultipliedby+.times”例如：1、thesalesofair-conditionershavebeenmultipliedbyfourtimessince2002。2.Theproductionhasmultipliedeighttimes,自2002年以来，空调的销售量增加了三倍.（是之前的四倍）,产量提高了7倍。（是以前的8倍）,二、注意事项1、两倍用twice/double.三倍及以上用.times.2、常见的倍数也可以用分数、百分数、或aquarter，ahalf等修饰。试翻译：这个盒子比那个大三分之一。,Theboxisonethirdtimesbiggerthanthatone。,易错题集锦,1、（2002上海春）Americanseat_vegetablesperpersontodayastheydidin1910.A.morethantwiceB.astwiceasmanyC.twiceasmanyasD.morethantwiceasmany,D。morethan/over/above+数字，是属于概数表达法的一种。此外，此题考查as.as表达法，第二个as已经给出。,2、Tenyearsagothepopulationofourvillagewasthatoftheirs。（2008.陕西）A.astwicelargeasB.twiceaslargeasC.twiceasmuchasD.astwicemuchas,答案B.本题的关键是population的修饰词用的是large。1、表示人口的多或少,不用much或little,而要用large或small。例如:Indiahasalargepopulation.印度人口众多。Singaporehasasmallpopulation.新加坡人口少。2、询问某国、某地有多少人口时,不用Howmuch.?,而用Howlarge.?;在问具体人口时用What.?例如:-Howlargeisthepopulationofyourhometown?你们家乡有多少人口?-WhatisthepopulationofCanada?加拿大的人口有多少?,3、Accordingtostatistics，amanistodieofskincancerasawoman。A.morethantwiceaslikelyasB.twicemorethanaslikelyC.aslikelymorethantwiceD.twicemorethanlikelyas,答案A.同第一题。,4、(09四川19)Myuncleshouseinthedowntownareaismuchsmallerthanours,butitistwice_expensive.A.asB.soC.tooD.very,答案A。考查as.as结构的省略问题。,5.（上海市六校2010届高三联考）Theladywassokeenonthefurcoatthatshewouldhaveboughtitevenifitcost_A.astwicemuchB.muchastwiceC.asmuchtwiceD.twiceasmuch,答案D同题4.,6、（甘肃省皋兰一中2010届高三上学期第三次月考）Eventhoughyouoffered_youhavejustoffered,1wouldnotsellittoyou.A.themoneytwicethatB.twicethemoneythatC.twicethemoneywhatD.themoneythattwice,答案B。that引导的定语从句。若选择c，去掉选项中的money即可。,7、（湖南省湘潭市凤凰中学2009届高三第六次月考）IrememberAlice,mylittleniece,oftenaskedquestionsthatchildren_wouldask.A.twicesooldassheB.twiceasoldasherageC.oldertwicethanherageD.twiceofherage,答案D。若选择B，要去掉age。,8（安徽省两地2010届高三第一次联考）Muchtohissurprise，heinvitedonlytwentyfriendstothedinner，butcameAtwiceasmanyasBasmanyastwiceCtwiceasmanyDtwicemorethan,答案C。asas结构的省略问题。第二个as为介词。,9、（山西省平遥中学2009年9月高三高补摸底考试）-Whatdoesthemodelplanelooklike?-Well,thewingsoftheplaneare_ofitsbody.A.morethanthelengthtwiceB.twicemorethanthelengthC.morethantwicethelengthD.moretwicethanthelength,答案C,10、（辽宁省本溪县2010届高三暑期补课阶段考试）-ItissaidthatthenumberofChinesecharactersyoucantypeonyourmobilephoneis_thetotalnumberofChinesecharacters.-Iknow.Thatisbecausethecharacterinputsystemsaremadebyforeigncellphoneproducers.A.muchthan25percentB.25percentaslessasC.25percentlessthanD.25percentasmuch,答案C。考查倍数+the+名词的用法。,
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