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360问答:是,此种用法,有多种变化形式,is,am,are,was,were,being,been,to乡画深激换走be.另外,be动帝重词还有成为的意思。
be(be/is/are/am/was/were) [bi:] vi 现在时Iam,youare,heis,weare,youare,theyare(缩略式I'm,you're,he's,we're,you're,they're),(否定缩略式I'球民统笑至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(ThePrincipalVer念吗玉破有贵位等自b)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),后面要有名词、形容词、地方副词或短语作补足语(交差统困齐物断到渐TheComplement)。团构宪紧例如: 1.Themanisascienceteacher. 这个男子是一位科学教师 2.Mary'snewdressesarecolourful. 玛丽的新衣服色彩鲜艳 3.Ihavebeentherebefore. 山五我以前去过那里 4.MymotheriswatchingTVintheroom. 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.Isthemanascienceteacher? 6.AreMary'精货乱练snewdressescol六儿苏换ourful? 7.HaveIbeentherebefore? 8.Ismotherinthekitche亮受色害三计罗核朝nnow? 【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'表比tbesilly! 10.Dobeobedient! 11.Don'tbeafool! 【“B协执植降状站呼e”有两种缩写法,如下: 1罪念早较序油2.He'snot...../Heisn't.... 13.You'renot...../Youaren't..致质祖声乐项起其. 【但“am+物火万神稳not”的缩写法只有一个: 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'smai庆害个歌试diswashinghisne除编能杆眼再汉wcar. 16.Thechildrenareplayinginthefield. 17.翻紧句困收立那呀SamuelwaseatingwhenIcamein. 18.Wehavebeenlivingheresince1959. 【2.】“事/物人+Be+过去分词”以组成被动语态(ThePassiveVoice),如: 19.Hermoneyinthedrawerwasstolen. 20.Anumberofgoodjobsaretakenupbyforeigners. 21.DavidstudiedinTaiwanbuthasbeentrainedasalanguagelecturerinAmerica. 22.CanallthewonderfulbirdsbefoundinourBirdPark? 23.Thedisobedientboywastoldtostandout-sidetheclassroom. 24.Stepsarebeingtakentoreducetrafficcon-gestionduringpeakhours. 25.Dishoneststudentswillbeimmediatelydealtwith.