英语中倍数的表达方式归纳.pptx

英语中倍数的表达方式归纳倍数英倍数英语语中中“倍数倍数”得表达方式得表达方式归纳归纳 n nThehouserentisexpensive、IvegotabouthalfthespaceIhadathomeandImpaying_here、A、asthreetimesmuchB、asmuchthreetimesC、muchasthreetimesD、threetimesasmuchn n正确答案正确答案为为D倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n一、用一、用 times 表示倍数表示倍数(一般限于包括基数一般限于包括基数在内三倍或三倍以上得数。表示两倍得数在内三倍或三倍以上得数。表示两倍得数,一般用一般用 twice)。其句式有。其句式有:n n1、“times 形容形容词词/副副词词得比得比较级较级 than”例如例如:n nLine AB is three times longer than line CD、线线段段 AB 就是就是(线线段段)CD 得三倍得三倍长长。This hall is five times bigger than our classroom、这这个大个大厅厅比我比我们们得教室大得教室大 5 倍。倍。n nLineABislong、n nLineABislongerthanlineCD、n nLineABisthreetimeslongerthanlineCD、n nThishallbig、n nThishallbiggerthanourclassroom、n nThishallisfivetimesbiggerthanourclassroom、倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n2、“times+as+形容形容词词/副副词词得原得原级级as”例如例如:n nThistableisthreetimesaslongasthatone、这张这张桌子就是那桌子就是那张张桌子得三倍桌子得三倍长长。Thisdictionaryisfivetimesasthickastheoneyouborrowedfromthelibrary、这这本本词词典得厚度就是您从典得厚度就是您从图书馆图书馆借得那本借得那本(厚度厚度)得得5倍。倍。n nThistableislong、n nThistableisaslongasthatone(is)、n nThistableisthreetimesaslongasthatone(is)、n nThisdictionarythick、n nThisdictionaryisasthickasthat one(is)、n nThisdictionaryisfivetimesasthickasthat one(is)、n nThisdictionaryisfivetimesasthickasthe one you borrowed from the library(is)、倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n3、“times+the+名名词词(如如:size,height,weight,length,width等等)of”例如例如:n nTheearthis49timesthesizeofthemoon、地球得体地球得体积积就是月球得就是月球得49倍。倍。Thisriveristhreetimesthedepthofthatone、这这条河就是那条河得三倍深。条河就是那条河得三倍深。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n4、“times+more名名词词than”例如例如:n nHeearnsfivetimesmoremoneythanhedidtenyearsago、她她现现在在挣挣得得钱钱比十年前比十年前挣挣得多得多5倍。倍。Therearetwicemorestudentsinourclassthanintheirs、我我们们班得学生人数比她班得学生人数比她们们班多两倍。班多两倍。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n5、“times+asmany(或或much)名名词词as”例如例如:n nWeveproducedtwiceasmuchcottonthisyearas(wedid)tenyearsago、今年我今年我们们生生产产得棉花比十年前多了一倍。得棉花比十年前多了一倍。(汉语汉语中得多一倍中得多一倍实际实际上也指两倍一上也指两倍一样样多。多。)n nHehasgotthreetimesasmanybooksashissister、她她拥拥有得有得书书得数量就是她妹妹得得数量就是她妹妹得3倍。倍。n nWeveproducedmuchcottonWeveproducedmuchcottonthis yearthis year n nWeveproducedWeveproducedasmuchcottonasmuchcotton this yearthis year asas(wedid)(wedid)ten years agoten years ago、n nWeveproducedWeveproducedtwiceasmuchcottontwiceasmuchcotton this this yearyearas(wedid)as(wedid)ten years agoten years ago、n nHehasgotHehasgotmanybooksmanybooks、n nHehasgotasHehasgotasmanybooksasmanybooksashissisterhissister(has)(has)、n nHehasgotHehasgotthreetimesasmanybooksasthreetimesasmanybooksas hissister(has)hissister(has)、倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n6、“times+what从句从句”例如例如:n nThelengthoftheroadisfourtimeswhatitwasthreeyearsago、这这条路得条路得长长度就是三年前得度就是三年前得4倍。倍。Thepriceofthemeatistwicewhatitwaslastyear、肉价就是去年得两倍。肉价就是去年得两倍。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n7、“times+upon(或或over)”例例如如:n nThesizeofthesunisamilliontimesoverthatoftheearth、太阳得体太阳得体积积比地球得体比地球得体积积大一百万倍。大一百万倍。Heisthreetimesuponyourage、她得年她得年龄龄就是您得就是您得4倍倍(或或:比您得年比您得年龄龄大大3倍倍)。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n8、“+by+times”例如例如:n nparedwithlastyear,ourcoaloutputhasincreasedbythreetimes、与去年相比与去年相比,我我们们得煤得煤产产量增量增长长了了3倍。倍。Hisspeedisfasterthanminebyfourtimes、她得速度比我得快她得速度比我得快4倍。倍。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n9、“times+paredwith被比被比较对较对象象”例如例如:n nThenumberofthestudentsinourschoolhasincreasedthreetimesparedwith1980、我我们们学校得学生人数比学校得学生人数比1980年增加了年增加了3倍。倍。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n10、“times+thatof+被比被比较对较对象象”例如例如:n nInthisworkshoptheoutputofJulywas3、5timesthatofJanuary、这这个个车间车间七月份得七月份得产产量就是元月份得量就是元月份得3、5倍。倍。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n二、用分数、百分数表示倍数。例如二、用分数、百分数表示倍数。例如:n nTheboxisone-thirdbiggerthanthatone、这这个盒子比那个盒子大三分之一。个盒子比那个盒子大三分之一。Lastyeartheoutputvalueofindustrywas59percenthigherthanthatof1976、去年工去年工业产值业产值比比1976年增年增长长了了59。MymandofEnglishisnothalfsogoodasyours、我英我英语语掌握得掌握得还还不及您得一半儿好。不及您得一半儿好。倍英倍英语语中中“倍数倍数”得表达方式得表达方式归纳归纳数数n n三、用三、用 again(again(一倍一倍)double()double(两倍两倍),triple(),triple(三倍三倍)fourfold()fourfold(四倍四倍)等等词词表示倍数。例如表示倍数。例如:n nMy Aunt is as old again as I amMy Aunt is as old again as I am、我姑姑得年我姑姑得年龄龄比我大一倍。比我大一倍。The top-brand clothes are often sold as double the The top-brand clothes are often sold as double the normal price herenormal price here、这这里名牌衣服得售价里名牌衣服得售价经经常比正常得售价高一倍。常比正常得售价高一倍。The new work procedure tripled the outputThe new work procedure tripled the output、新工新工艺艺使使产产量增加两倍。量增加两倍。The output of grain increased fourfoldThe output of grain increased fourfold、粮食粮食产产量增加了三倍。量增加了三倍。巩固巩固练习练习 n nAmericanseat_vegetablesperpersontodayastheydidin1910、A、morethantwiceB、astwiceasmanyC、twiceasmanyasD、morethantwiceasmanyn nKey:D巩固巩固练习练习 n nPaperproducedeveryyearis_theworldsproductionofvehicles、A、thethreeweightofB、threetimestheweightofC、asthreetimesheavyasD、threetimesasheavierasn nKey:B巩固巩固练习练习 n nWiththehelpoftheGermanexperts,thefactoryproduced_carsin1993astheyearbefore、A、astwicemanyB、asmanytwiceC、twiceasmanyD、twicemanyasn nKey:C巩固巩固练习练习 n nThisshipmeasures_thatone、A、astwiceaslongB、astwicelongasC、twicelongasD、twiceaslongasn nKey:D