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be动词的意思

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2021-02-01 17:53
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2021年2月1日发(作者:班禅额尔德尼)


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



to be.


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


will be




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:





will be







口诀:





一般时态有关


be


动词的口诀





我用

< p>
am


,你用


are



is


连接他


/


她< /p>


/


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


< br>not


莫忘记






疑问否定任你变

< br>?


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



I am, you are, he is, we are, you are, they are


(缩略式



I'm, you're, he's, we're, you're,


they're



,


(否定缩略式



I'm not, isn't, aren't



,




过去时



I was, you were, he was, we were, you were, they were


(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.



< br>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






I am a girl.


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







I am reading.


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


( The Linking Verb),


后面要有名词、形容词、地方


副词或短语作补足语


(The Complement)




eg






1. The man is a science teacher.


这个男子是一位科学教师





2. Mary's new dresses are colourful.


玛丽的新衣服色彩鲜艳





3. I have been there before.


我以前去过那里





4. My mother is in the kitchen now.


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. Is the man a science teacher?




6. Are Mary's new dresses colourful?




7. Have I been there before?




8. Is mother in the kitchen now?




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't be silly!




10. Do be obedient!




11. Don't be a fool!




Be


”有两种缩写法,





eg






12. He's not...../He isn't....




13. You're not...../You aren't...




但“


am + not


”的缩写法只有一个:





eg






14. I'm not.




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.< /p>




Be +


现在分词”以组成进行式时态


(Continuous Tenses)




eg






15. Tony's maid is washing his new car.




16. The children are playing in the field.




17. Samuel was eating when I came in.




18. We have been living here since 1959.




2.



“事

/


物人



+Be +


过去分词”以组成被动语态


(The Passive Voice)




eg






19. Her money in the drawer was stolen




20. A number of good jobs are taken up by foreigners




21. David studied in Taiwan but has been trained as a language lecturer in America




22. Can all the wonderful birds be found in our Bird Park




23. The disobedient boy was told to stand out- side the classroom




24. Steps are being taken to reduce traffic con- gestion during peak hours




25. Dishonest students will be immediately dealt with







练习





一用


be


动 词适当的词填空






1. I ________ from Australia.





2. She _______



a student.





and Tom _________ my friends.





4. My parents _______



very busy every day.





5.I ______ an English teacher now.







_________



you from?





light



_________



green.





name is _________



Li Dong.




9.I _________ twelve.





10._________ they your new friends?





11. I ______ a boy.





12.______ you a boy? No, I _____ not.





13. The girl______ Jack's sister.





14. The dog _______ tall and fat.





15. ______ your brother in the classroom?





16. Where _____ your mother? She ______ at home.




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