be動(dòng)詞的用法：be(be/is/are/am/was/were)vi

現(xiàn)在時(shí)Iam,youare,heis,weare,youare,theyare(縮略式I'm,you're,he's,

we're,you're,they're),(否定縮略式I'mnot,isn't,aren't),過(guò)去時(shí)Iwas,youwere,he

was,wewere,youwere,theywere(過(guò)去時(shí)否定縮略式wasn't,weren't),過(guò)去分詞been,

現(xiàn)在分詞being

英語(yǔ)的“be”是個(gè)特殊動(dòng)詞;有些語(yǔ)言，如馬來(lái)文等，并沒(méi)有“be”這樣的動(dòng)詞。

“Be”除了原形的“be”之外，還有另外七種形式：am,is,are,been,being,was,were.

在句子中，“be”可以是主動(dòng)詞(ThePrincipalVerb)或助動(dòng)詞(TheAuxiliaryVerb)

例句對(duì)照

【當(dāng)主動(dòng)詞時(shí)，“be”在性質(zhì)上屬于接系動(dòng)詞(TheLinkingVerb),后面要有名詞、形容詞、地方副詞或短語(yǔ)作補(bǔ)足語(yǔ)(The

Complement)。例如：

1.Themanisascienceteacher.

這個(gè)男子是一位科學(xué)教師

2.Mary'snewdressesarecolourful.

瑪麗的新衣服色彩鮮艷

3.Ihavebeentherebefore.

我以前去過(guò)那里

4.MymotheriswatchingTVintheroom.

母親現(xiàn)在在客廳看電視

【這四個(gè)都是陳述句，可以變成疑問(wèn)句，方法簡(jiǎn)單，把主語(yǔ)和“be”或助動(dòng)詞對(duì)換位置即可：

5.Isthemanascienceteacher?

6.AreMary'snewdressescolourful?

7.HaveIbeentherebefore?

8.Ismotherinthekitchennow?

【當(dāng)“be”要在祈使句中出現(xiàn)時(shí)，它必須借重助動(dòng)詞“do”或“don't”之助，如：

9.Don'tbesilly!

10.Dobeobedient!

11.Don'tbeafool!

【“Be”有兩種縮寫法，如下：

12.He'snot...../Heisn't....

13.You'renot...../Youaren't...

【但“am+not”的縮寫法只有一個(gè)：

14.I'mnot.

有人用“ain't”,但這并不是標(biāo)準(zhǔn)英語(yǔ)。

談過(guò)了“be”作主動(dòng)詞的功能，現(xiàn)在看看“be”作助動(dòng)詞時(shí)，有些什么用法：

【1.】“Be+現(xiàn)在分詞”以組成進(jìn)行式時(shí)態(tài)(ContinuousTenses)，如：

15.Tony'smaidiswashinghisnewcar.

16.Thechildrenareplayinginthefield.

17.SamuelwaseatingwhenIcamein.

18.Wehavebeenlivingheresince1959.

【2.】“情態(tài)動(dòng)詞+Be+過(guò)去分詞”以組成被動(dòng)語(yǔ)態(tài)(ThePassiveVoice),如：

19.Hermoneyinthedrawerwasstolen.

20.Anumberofgoodjobsaretakenupbyforeigners.

21.DavidstudiedinTaiwanbuthasbeentrainedasalanguagelecturerin

America.

22.CanallthewonderfulbirdsbefoundinourBirdPark?

23.Thedisobedientboywastoldtostandout-sidetheclassroom.

24.Stepsarebeingtakentoreducetrafficcon-gestionduringpeak

hours.

25.Dishoneststudentswillbeimmediatelydealtwith.