be动词有哪些分别怎么用
的有关信息介绍如下: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.