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be动词有哪些分别怎么用

be动词有哪些分别怎么用

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be动词有哪些分别怎么用

be动词意思和用法很多,一般的意思是:是,此种用法,有多陈宽缩水类总种变化形式,is,am,are,was,were,活证再being,been,tobe.另外,be动词还有成为的意思。

be(be/is/are/am/was/were)  [bi:]  vi  现在时Iam,youare,heis,weare,youare,theyare(缩略式I'm,360问答you're,he's,we're,you're,they're),(否定缩略式I'mnot,isn't,aren't),过去时Iwas,youwere,hewas,wewere,youwere,theywere(过去时否定缩略式wasn't,weren't),过去分词been,现在分词being  英语的“be”是个特殊动词;有些语言,如马来文等,并没有“be”这样的动词。  “Be”除了原形的“be”之外,还有另外七种形式:am,is,are,been,being,was,were.  在句子中,“be”可以是主动词(ThePrincipalVerb)或助动词(TheAuxiliaryVerb)

编辑本段例句对照

  【当主动词时,“be”在性质上属于接系动词(TheLinkingVerb),后面治到步候也要有名词、形容词、地方副词或短语作补足语(TheComplement)。例如:  1.Themanisascie调判清久排且投故抗操nceteacher.  这个男子是一位科学教师  2.Mary'snewdressesarecolo阿组urful.  玛丽的新衣服色彩鲜艳  3.Ihavebeentherebefore.  我以前去家美过那里  4.Mymot旧黄多超良建heriswatchi加责频杂ngTVintheroom.  母亲现在在客厅看电视 【这四个都是陈述句,可以变成疑问句,方法简单,把主语和“be”或助动词对换位置即可:  5.Isthe护过书抗留天需manascienceteacher?  6.AreMary'snewdressescolourful?  7.HaveIbeentherebefor映为汉e?  8.Ismotherinthekitchennow?  【当“be”要在祈使句中出现时,它必须借重助动词“do”或“don't”之助,如:  9.Don'tbesilly!  10.Dobeobedient!  11.Don'tbeafool!  【“Be”有两种缩写法,如下:  12都杂.He'snot...../Heisn't....  13.You'renot...../Youaren't...  【但“am+not”的缩写法只反甲果啊念点她临采电有一个:  14.I'mnot.  有人用“ain't”,但这并不是标准英语。  谈过了“be”作主动词的功能,现在看看“be”作助动词时,有些什么用法:  【1.】“Be+现在分词”以组成进行式时态(ContinuousTenses),如:  15.Tony'smaidiswashinghisnewcar.  16.Thechildrenareplayinginthefie风普家ld.  17.SamuelwaseatingwhenIcamein.  18.Wehave置仍浓哪治推好举白文行beenlivingheresince1959.  【2.】“事/物人+Be+过去分词”以组成被动语态(ThePassiveV山征征全理属据oice),如:  19.Hermoneyinthed厚小脸rawerwasstolen.  20.Anumberofgoodjobsaretakenupbyforeigners.  21.DavidstudiedinTaiwanbuthasbeentrainedasalanguagelecturerinAmerica.  22.CanallthewonderfulbirdsbefoundinourBirdPark?  23.Thedisobedientboywastoldtostandout-sidetheclassroom.  24.Stepsarebeingtakentoreducetrafficcon-gestionduringpeakhours.  25.Dishoneststudentswillbeimmediatelydealtwith.