如何区别dare,need是情态动词还是实义动词?

2025-03-15 13:39:02
推荐回答(2个)
回答1:

need

dare
有两种用法,一种用作实意动词,一种用作情态动词,但是用法不同。
1.
实意动词
1)可以用在肯定、否定或疑问句中,以
need
为例:
you
need
to
come
today.
你今天需要来。
you
don't
need
come
today.
你今天不需要来。
do
you
need
to
come
today?
今天需要你来吗?
2)注意:否定和疑问都要加助动词
do。
3)有各种时态变化
2.
情态动词
1)只能用在否定或疑问句中,如:
*
she
dare
not
do
it.
她不敢做那件事。
*
how
dare
he
distort
the
facts
so
brazenly?他怎么敢如此肆无忌惮地歪曲事实?
*
you
need
not
[needn't]
come
today.
今天你不必来。
*
--neen
we
make
the
test?
--yes,
we
must.我们需要做这个试验吗?
--是的,
需要。(否定回答:
no,
we
needn't.
不,
不需要。)
*
he
need
not
have
done
it.
他本不需要做这件事。
2)有缩写形式
daren't,
needn't.
3)
疑问句中
dare

need
需要提到主语前。
4)没有时态变化。

回答2:

这两词既可做实义动词用,又可做情态动词用。作为情态动词,两者都只能用于疑问句,否定句和条件句。
need
作实义动词时后面的不定式必须带to,而dare作实义动词用时,
后面的to
时常可以被省略。
1)
实义动词:
有过去式和第三人称单数形式,
后面接
n.
/
to
do
sth
2)
情态动词:
只有原形,后面接do,否定形式直接加not。如:
Need
you
go
yet?
Yes,
I
must.
/
No,
I
needn't.

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