dare作情态动词,情态动词had better的用法

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情态动词 "dare" 表示勇敢或敢于做某事。

表示勇敢或敢于做某事:

He dared to climb the mountain alone.(他敢独自爬山。)

I dare you to jump into the cold water.(我敢你跳进冰冷的水里。)

否定句和疑问句中,需要借助助动词 "do/does/did":

She didn't dare to ask for help.(她不敢寻求帮助。)

Did you dare to confront him?(你敢面对他吗?)

可以以动词原形或 "to" 引导的不定式形式出现:

I dare not go near the edge of the cliff.(我不敢靠近悬崖边缘。)

He dares to challenge the authority.(他敢挑战权威。)

"dare" 作为情态动词时,在肯定句中后面不加 "s/es",并且在否定句和疑问句中需要借助辅助动词 "do/does/did"。

"dare" 还可以作为普通动词使用,其后面可直接跟动词原形,表示敢于做某事:

I dare you to try it.(我谅你也不敢试。)

They dared him to perform a dangerous stunt.(他们挑战他来表演危险的特技。)

dare 用作实义动词,有人称和数以及时态的变化。其后的动词不定式可带 to 也可不带一般肯定句中要有 to.否定句和疑问中没有 to。

肯定句(带有"to"):

I dare to speak up for myself.

我敢于为自己说话。

She dares to take risks.

她敢于冒险。

肯定句(省略"to"):

He doesn't dare (to) go alone.

他不敢单独去。

They never dared (to) try something new.

他们从来不敢尝试新事物。

否定句:

I don't dare speak in public.

我不敢在公共场合讲话。

He didn't dare challenge his boss.

他不敢挑战他的老板。

疑问句:

Do you dare (to) confront the bully?

你敢和恶霸对质吗?

Did she dare (to) visit that haunted house?

她敢去参观那所闹鬼的房子吗?

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