英语中倍数的表达方式归纳省公共课一等奖全国赛课获奖课件.pptx

英语中英语中“倍数倍数”表示表示方式归纳方式归纳 第1页倍倍数数英英语语中中“倍倍数数”表表示示方方式式归归纳纳 n nThehouserentisexpensive.IvegotabouthalfthespaceIhadathomeandImpaying_here.A.asthreetimesmuch B.asmuchthreetimes C.muchasthreetimes D.threetimesasmuchn n正正确确答答案案为为D第2页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n一一、用用 times 表表示示倍倍数数（普普通通限限于于包包含含基基数数在在内内三三倍倍或或三三倍倍以以上上数数。表表示示两两倍倍数数，普普通通用用 twice）。其其句句式式有有：n n1.“times 形形容容词词/副副词词比比较较级级 than”比比如如：n nLine AB is three times longer than line CD.线线段段 AB 是是（线线段段）CD 三三倍倍长长。This hall is five times bigger than our classroom.这这个个大大厅厅比比我我们们教教室室大大 5 倍倍。第3页 n nLineABislong.n nLineABislongerthanlineCD.n nLineABisthreetimeslongerthanlineCD.n nThishallbig.n nThishallbiggerthanourclassroom.n nThishallisfivetimesbiggerthanourclassroom.第4页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n2.“times+as+形形容容词词/副副词词原原级级as”比比如如：n nThistableisthreetimesaslongasthatone.这这张张桌桌子子是是那那张张桌桌子子三三倍倍长长。Thisdictionaryisfivetimesasthickastheoneyouborrowedfromthelibrary.这这本本词词典典厚厚度度是是你你从从图图书书馆馆借借那那本本（厚厚度度）5倍倍。第5页 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).第6页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n3.“times+the+名名词词（如如：size，height，weight，length，width等等）of”比比如如：n nTheearthis49timesthesizeofthemoon.地地球球体体积积是是月月球球49倍倍。Thisriveristhreetimesthedepthofthatone.这这条条河河是是那那条条河河三三倍倍深深。第7页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n4.“times+more名名词词than”比比如如：n nHeearnsfivetimesmoremoneythanhedidtenyearsago.他他现现在在挣挣钱钱比比十十年年前前挣挣多多5倍倍。Therearetwicemorestudentsinourclassthanintheirs.我我们们班班学学生生人人数数比比他他们们班班多多两两倍倍。第8页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n5.“times+asmany（或（或much）名词名词as”比如：比如：n nWeveproducedtwiceasmuchcottonthisyearas（wedid）tenyearsago.今年我们生产棉花比十年前多了一倍。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。）（汉语中多一倍实际上也指两倍一样多。）n nHehasgotthreetimesasmanybooksashissister.他拥有书数量是他妹妹他拥有书数量是他妹妹3倍。倍。第9页 n nWeveproducedmuchcottonWeveproducedmuchcottonthis yearthis year n nWeveproducedWeveproducedasmuchcottonasmuchcotton this yearthis year asas（wedidwedid）ten years agoten years ago.n nWeveproducedWeveproducedtwiceasmuchcottontwiceasmuchcotton this this yearyearasas（wedidwedid）ten years agoten years ago.n nHehasgotHehasgotmanybooksmanybooks.n nHehasgotasHehasgotasmanybooksasmanybooksashissisterhissister(has).(has).n nHehasgotHehasgotthreetimesasmanybooksasthreetimesasmanybooksas hissister(has).hissister(has).第10页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n6.“times+what从从句句”比比如如：n nThelengthoftheroadisfourtimeswhatitwasthreeyearsago.这这条条路路长长度度是是三三年年前前4倍倍。Thepriceofthemeatistwicewhatitwaslastyear.肉肉价价是是去去年年两两倍倍。第11页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n7.“times+upon（或或over）”比比如如：n nThesizeofthesunisamilliontimesoverthatoftheearth.太太阳阳体体积积比比地地球球体体积积大大一一百百万万倍倍。Heisthreetimesuponyourage.他他年年纪纪是是你你4倍倍（或或：比比你你年年纪纪大大3倍倍）。第12页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n8.“+by+times”比比如如：n nComparedwithlastyear，ourcoaloutputhasincreasedbythreetimes.与与去去年年相相比比，我我们们煤煤产产量量增增加加了了3倍倍。Hisspeedisfasterthanminebyfourtimes.他他速速度度比比我我快快4倍倍。第13页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n9.“times+comparedwith被被比比较较对对象象”比比如如：n nThenumberofthestudentsinourschoolhasincreasedthreetimescomparedwith1980.我我们们学学校校学学生生人人数数比比1980年年增增加加了了3倍倍。第14页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n10.“times+thatof+被被比比较较对对象象”比比如如：n nInthisworkshoptheoutputofJulywas3.5timesthatofJanuary.这这个个车车间间七七月月份份产产量量是是元元月月份份3.5倍倍。第15页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n二二、用用分分数数、百百分分数数表表示示倍倍数数。比比如如：n nTheboxisone-thirdbiggerthanthatone.这这个个盒盒子子比比那那个个盒盒子子大大三三分分之之一一。Lastyeartheoutputvalueofindustrywas59percenthigherthanthatof1976.去去年年工工业业产产值值比比1976年年增增加加了了59。MycommandofEnglishisnothalfsogoodasyours.我我英英语语掌掌握握得得还还不不及及你你二二分分之之一一儿儿好好。第16页倍倍英英语语中中“倍倍数数”表表示示方方式式归归纳纳数数n n三三、用用 a ag ga ai in n （一一倍倍）d do ou ub bl le e （两两倍倍），t tr ri ip pl le e （三三倍倍）f fo ou ur rf fo ol ld d （四四倍倍）等等词词表表示示倍倍数数。比比如如：n nMMy y A Au un nt t i is s a as s o ol ld d a ag ga ai in n a as s I I a amm.我我姑姑姑姑年年纪纪比比我我大大一一倍倍。T Th he e t to op p-b br ra an nd d c cl lo ot th he es s a ar re e o of ft te en n s so ol ld d a as s d do ou ub bl le e t th he e n no or rmma al l p pr ri ic ce e h he er re e.这这里里名名牌牌衣衣服服售售价价经经常常比比正正常常售售价价高高一一倍倍。T Th he e n ne ew w w wo or rk k p pr ro oc ce ed du ur re e t tr ri ip pl le ed d t th he e o ou ut tp pu ut t.新新工工艺艺使使产产量量增增加加两两倍倍。T Th he e o ou ut tp pu ut t o of f g gr ra ai in n i in nc cr re ea as se ed d f fo ou ur rf fo ol ld d.粮粮食食产产量量增增加加了了三三倍倍。第17页巩巩固固练练习习 n nAmericanseat_vegetablesperpersontodayastheydidin1910.A.morethantwice B.astwiceasmany C.twiceasmanyas D.morethantwiceasmanyn nKey：D第18页巩巩固固练练习习 n nPaperproducedeveryyearis_theworldsproductionofvehicles.A.thethreeweightof B.threetimestheweightof C.asthreetimesheavyas D.threetimesasheavierasn nKey：B第19页巩巩固固练练习习 n nWiththehelpoftheGermanexperts，thefactoryproduced_carsin1993astheyearbefore.A.astwicemany B.asmanytwice C.twiceasmany D.twicemanyasn nKey：C第20页巩巩固固练练习习 n nThisshipmeasures_thatone.A.astwiceaslong B.astwicelongas C.twicelongas D.twiceaslongasn nKey：D第21页巩巩固固练练习习 n nAfterthenewtechniquewasintroduced，thefactoryproduced_tractorsin1988astheyearbefore A.astwicemany B.asmanyas C.astwiceasmany D.twiceasmanyn nKey：D第22页