倍数用法总结PPT课件

.,1,Welcome,.,2,倍数表达法,（1）倍数+as+原级+as+被比对象ExamplesThistreeisthreetimesastallasthatone.这棵树是那棵树的三倍高。Hisfatheristwiceasoldashe.他父亲的年纪有他两倍大。,.,3,（2）倍数+比较级+than+被比对象,ExamplesTheYangtzeRiverisalmosttwicelongerthanthePearlRiver.长江差不多比珠江长两倍。Thedictionaryisexactlyfivetimesmoreexpensivethanthatone.这本字典比那本恰好贵5倍。,.,4,（3）倍数+the+表数量大小的名词+of+被比对象或that/thoseof,ExamplesThenewlybroadenedsquareisfourtimesthesizeofthepreviousone.新扩建的广场是未扩建时的四倍大。Theroomsinthishotelaresixtimesthoseofthesmallinn.这间酒店的房间是小客栈的六倍多。,.,5,副词的位置,We_ourbreakfastwhenanoldmancametothedoor.A.justhavehadB.havejusthadC.justhadhadD.hadjusthad频率副词always,often,frequently,seldom,never,ever,usually,rarely,occasionally,nosooner,hardly,scarcely等以及just,shortly等其他副词必须放在助动词、情态动词或be动词与实义动词之间。在省略结构中，这些副词必须放在助动词，情态动词或be动词之间。,.,6,程度副词的位置,HowIwishJohnrecognizedthefactthathe_inthewrong.A.isalwaysnearlyB.alwaysisnearlyC.isnearlyalwaysD.nearlyisalways程度副词的位置通常放在所修饰的词前面,如very,much,almost,hardly,nearly，awfully,fairly,rather等。但enough必须放在所修饰词的后面。,.,7,频率副词的位置,SanFranciscoisusuallycoolinsummer,butLosAngeles_.A.israrelyB.hardlyisC.rarelyisD.isscarcely频率副词如always,usually,never,ever,just,shortly,seldom,hardly,scarcely,nosooner,rarely,occasionally常放在助动词、情态动词、或be动词后或实义动词之前，但在省略结构中，必须置于助动词，情态动词或be动词之前。,.,8,评注性副词的位置,Not_,theprocessofchoosingnamesvarieswidelyfromculturetoculture.A.obviouslyB.particularlyC.surprisinglyD.normally对全句进行修饰的评注性副词如ac