倍數(shù)表達(dá)法經(jīng)典總結(jié)

倍數(shù)表達(dá)法一、用times表示倍數(shù)（一般限于包括基數(shù)在內(nèi)三倍或三倍以上的數(shù)。表示兩倍的數(shù)，一般用twice）。其句式有：(前三種為主)1.“…times＋形容詞/副詞的比較級＋than…”例如：This

rope

is

twice

longer

than

that

one．This

hall

is

five

times

bigger

than

our

classroom．2.“…times+as+形容詞/副詞的原級＋as…”例如：Thisdictionaryisfivetimesasthickastheoneyouborrowedfromthelibrary.這本詞典的厚度是你從圖書館借的那本（厚度）的5倍。This

big

stone

is

three

times

as

heavy

as

that

one．這塊大石頭的重量是那一塊的三倍。（這塊石頭比那塊重二倍）

The

plane

flew

ten

times

as

high

as

the

kite．那架飛機(jī)飛行高度是那個(gè)風(fēng)箏的十倍。（高出九倍）3.“…times+the+名詞（如：size，height，weight，length，width,age等）＋of…”例如：Theearthis49timesthesizeofthemoon.地球的體積是月球的49倍。Thisriveristhreetimesthedepthofthatone.這條河是那條河的三倍深。This

hill

is

four

times

the

height

of

that

small

one．這座山的高度是那座小山的四倍。（比那座小山高三倍）4.“…times+more＋名詞＋than…”例如：Heearnsfivetimesmoremoneythanhedidtenyearsago.他現(xiàn)在掙的錢比十年前掙的多5倍。Therearetwicemorestudentsinourclassthanintheirs.我們班的學(xué)生人數(shù)比他們班多兩倍。5.“…times+asmany（或much）＋名詞＋as…”例如：We'veproducedtwiceasmuchcottonthisyearas（wedid）tenyearsago.今年我們生產(chǎn)的棉花比十年前多了一倍。（漢語中的多一倍實(shí)際上也指兩倍一樣多。）Hehasgotthreetimesasmanybooksashissister.他擁有的書的數(shù)量是他妹妹的3倍。6.“…times+what從句”例如：Thelengthoftheroadisfourtimeswhatitwasthreeyearsago.這條路的長度是三年前的4倍。Thepriceofthemeatistwicewhatitwaslastyear.肉價(jià)是去年的兩倍。7.

“…times+upon（或over）…”例如：Thesizeofthesunisamilliontimesoverthatoftheearth.太陽的體積比地球的體積大一百萬倍。Heisthreetimesuponyourage.他的年齡是你的4倍（或：比你的年齡大3倍）。8.“…+by+…times”例如：Comparedwithlastyear，ourcoaloutputhasincreasedbythreetimes.與去年相比，我們的煤產(chǎn)量增長了3倍。9.“…times+comparedwith＋被比較對象”例如：Thenumberofthestudentsinourschoolhasincreasedfourtimescomparedwith1980.我們學(xué)校的學(xué)生人數(shù)比1980年增加了4倍。10.“…times+thatof+被比較對象”例如：InthisworkshoptheoutputofJulywasthreetimesthatofJanuary.這個(gè)車間七月份的產(chǎn)量是元月份的3倍。［倍數(shù)鞏固練習(xí)］1.Americanseat____vegetablesperpersontodayastheydidin1910.A.morethantwiceB.astwiceasmanyC.twiceasmanyasD.morethantwiceasmany2.Paperproducedeveryyearis____theworld'sproductionofvehicles.A.thethreeweightofB.threetimestheweightofC.asthreetimesheavyasD.threetimesasheavieras3.WiththehelpoftheGermanexperts，thefactoryproduced____carsin1993astheyearbefore.A.astwicemanyB.asmanytwiceC.twiceasmanyD.twicemanyas4.Thisshipmeasures____thatone.A.astwiceaslongB.astwicelongasC.twicelongasD.twiceaslongas5.Afterthenewtechniquewasintroduced，thefactoryproduced____tractorsin1988astheyearbefore.A.astwicemanyB.asmanyasC.astwiceasmanyD.twiceasmany6.ItisreportedthattheUnitedStatesuses____energyasthewholeofEurope.A.astwiceB.twicemuchC.twicemuchasD.twiceasmuch7.Thehouserentisexpensive,I’vegotabouthalfthespaceIhadathomeandI’mpaying______here.(上海卷)A.asthreetimesmuch B.asmuchthreetimes C.muchasthreetimes D.threetimesasmuch8.Withthehel