英语``````
发布网友
发布时间:2022-04-21 21:18
我来回答
共2个回答
热心网友
时间:2022-05-13 05:42
be动词
be动词的用法
be
[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
绕口令
我(I)用am
你(you)用are
is用于他(he)、她(she)、它(it)
英语的“be”是个特别动词;有些语言,如中文和马来文,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(The Principal Verb)或助动词(The Auxiliary Verb).
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)。例如:
The man is a science teacher.
这是陈述句,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:
Is the man a science teacher?
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:
Don't be silly!
Do be obedient!
“Be”有两种缩写法,如下:
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:
14. I'm not.
“Be + 现在分词”以组成进行式时态(Continuous Tenses),如:
Tony's maid is washing his new car.
“Be + 过去分词”以组成被动语态(The Passive Voice),如:
Her money in the drawer was stolen
参考资料:http://zhidao.baidu.com/question/41820583.html?si=1&wtp=wk
热心网友
时间:2022-05-13 07:00
be 是动词
每个独立句子都有主要的一个动词 如果没有的话就要加个Be进去 (这样好理解吧?)
例如
I want to be a doctor.
want to do sth想做某事
a doctor 是名词 不是动词
所以不能 want to a doctor
中间就放个be 使句子完整