be动词的意思.docx
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be动词的意思
be动词的意思
be动词意思和用法很多,一般的意思是:
是,此种用法,有多种变化形式,is,am,are,was,were,being,been,tobe.另外,be动词还有成为的意思。
根据句子中不同的人称、数和时态,应该选择相应的be动词。
要看句语的时态:
如果是一般过去时,就用was/were
如果是一般现在时,就用am/is/are
如果是一般将来时,就用willbe
然后看主语的人称及复数形式:
一般过去时:
第一人称和第三人称的单数形式,则用was
第一人称和第二人称、第三人称的复数,则用were
一般现在时:
第一人称单数形式,用am
第三人称单数形式,用is
第一人称和第二人称、第三人称的复数形式,则用are
一般将来时:
willbe
口诀:
一般时态有关be动词的口诀
我用am,你用are,is连接他/她/它,
单数名词用is,复数名词全用are
变疑问,往前提,句末问号莫丢弃
变否定,更容易,be后not莫忘记
疑问否定任你变句首大写莫迟疑
be动词的用法
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'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”可以是系动词或助动词
1系动词,所构成的句子结构为主系表,表现形式有:
is,am,are,was,were,在句子中翻译为“是”
eg:
Iamagirl.我是个女孩。
2助动词,无实际意义,与其他动词一起构成时态。
表现形式有:
is,am,are,was,were以及Be原形。
eg:
Iamreading.我正在看书。
(进行时)
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(TheComplement)
eg:
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.我以前去过那里
4.Mymotherisinthekitchennow.母亲现在在厨房
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
eg:
5.Isthemanascienceteacher?
6.AreMary'snewdressescolourful?
7.HaveIbeentherebefore?
8.Ismotherinthekitchennow?
当“be”要在祈使句中出现时,它必须借助助动词“do”或“don't”之助
eg:
9.Don'tbesilly!
10.Dobeobedient!
11.Don'tbeafool!
“Be”有两种缩写法,
eg:
12.He'snot...../Heisn't....
13.You'renot...../Youaren't...
但“am+not”的缩写法只有一个:
eg:
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)
eg:
15.Tony'smaidiswashinghisnewcar.
16.Thechildrenareplayinginthefield.
17.SamuelwaseatingwhenIcamein.
18.Wehavebeenlivingheresince1959.
【2.】“事/物人+Be+过去分词”以组成被动语态(ThePassiveVoice)
eg:
19.Hermoneyinthedrawerwasstolen
20.Anumberofgoodjobsaretakenupbyforeigners
21.DavidstudiedinTaiwanbuthasbeentrainedasalanguagelecturerinAmerica
22.CanallthewonderfulbirdsbefoundinourBirdPark
23.Thedisobedientboywastoldtostandout-sidetheclassroom
24.Stepsarebeingtakentoreducetrafficcon-gestionduringpeakhours
25.Dishoneststudentswillbeimmediatelydealtwith
练习
一用be动词适当的词填空
1.I________fromAustralia.
2.She_______astudent.
3.JaneandTom_________myfriends.
4.Myparents_______verybusyeveryday.
5.I______anEnglishteachernow.
6.Where_________youfrom?
7.Thelight_________green.
8.Mynameis_________LiDong.
9.I_________twelve.
10._________theyyournewfriends?
11.I______aboy.
12.______youaboy?
No,I_____not.
13.Thegirl______Jack'ssister.
14.Thedog_______tallandfat.
15.______yourbrotherintheclassroom?
16.Where_____yourmother?
She______athome.
17.Whosedress______this?
18.That______myredskirt.
19.Thebooks_______underthetable.
20.Who______I?
21.Sometea______intheglass.
22.Gaoshan'sshirt_______overthere.
23.Mysister'sname______Nancy.
24.This______notWangFang'spencil.
25.______DavidandHelenfromEngland?
26.We____friends.
27.She___ateacher.
28.I___agirl.
29.Manyants____inmyhouse.
30.Hismother____fat.
31.He_____inClass4,Grade1.
32.What_____yourname?
33.These_____buses.
34.Whatclass_____youin?
35.It_____acar.
36.Helen____astudent
37.This_____mybook.
38.Myfather______acook.
39.Jack’sfriend____inClassOne.
40.You____adoctor.
41.They____cars.
42.That______herdog.
43.Thecat_______onthedesk.
二.选择
1.She______MissHen.
A.beB.amC.is
2.I______sorry.
A./B.amC.are
3.Here______myball.
A.isB.areC.am
4.You______numbereight.
A.areB.isC.am
5.What_______this.
A.isB.areC.be
6.Helen____astudent.
A.beB.amC.is
7.Those_____oranges.
A.isB.areC.am
8.Howold_____yourteacher?
A.beB.amC.is
9.Where_____hermother?
A.areB.isC.am
10.Thetwocupsofmilk_____forme.
A.isB.areC.be
11.EricandKathy____mystudents.
A.areB.isC.am
12.Yourbooks____notgood.
A.isB.areC.be
13.He___aboy.
A.beB.amC.is
14.It___mydog.
A.isB.areC.be
15.Whosesocks______they?
A.areB.isC.am
16._______thereanychairsintheclassroom.
A.IsB.AreC.Am
17.Themanwithbigeyes_______ateacher.
A.beB.amC.is
18.How_______yourfather?
A.isB.areC.be
19.MikeandLiuTao______atschool.
A.areB.isC.am
20.I_____astudent.
A.beB.amC.is
21.They______teachers.
A.isB.areC.be
22.This_____mymother.
A.areB.isC.am
23._____youastudent?
Yes,Iam.
A.AmB.IsC.Are
24.Thejam_____goodformygrandma.
A.isB.areC.b
三.将下列句子变成否定句和一般疑问句
1.Hisbrotherisateacher.
否定句:
一般疑问句:
2.Thosearehisparents.
否定句:
一般疑问句:
3.I’m14yearsold.
否定句:
一般疑问句:
4.Therulerisonthetable.
否定句:
一般疑问句:
5.Tomismyteacher.
否定句:
一般疑问句:
6.Myshoesare20yuan.
否定句:
一般疑问句:
7.Thisisapen.
否定句:
一般疑问句:
8.MynameisAndy.
否定句:
一般疑问句:
9.Wearetwins.
否定句:
一般疑问句:
10.Heismybrother.
否定句:
一般疑问句:
11.Iamateacher.
否定句:
一般疑问句:
12.Sheismymother.
否定句:
一般疑问句:
13.ThisisMissZhao.
否定句:
一般疑问句:
14.Sheisanewstudent.
否定句:
一般疑问句:
15.Tomismybestfriend.
否定句:
一般疑问句: