3. need和dare作情态动词时,过去时形式与现在形式相同(美国英语中可用dared)。
He was so angry that no one dared say a word.
They said that he neednt stay there any longer.
4. need和dare常用实义动词,有时态、人称和数的变化。不同的是dare作实义动词时,在肯定句中通常接带to的不定式,在疑问句和否定句中,dare之后的不定式可带to或不带to。例如:
He needs to finish the work before nightfall.
I dare to swim across this river.
He does not dare (to) answer the teachers question.
Dont you dare (to) touch it?
I wonder he dared say that.
5. I dare say是习惯用语,常可写为I daresay,用法有以下几种:
1) 敢于说,通常接that或what引导的名词性从句。
I dare say that he has stolen Toms football. I dare say what I think.
2) 我想;恐怕;大概;也许是,通常作插入语用,使句子委婉。
I dare say there is something wrong with the machines.
Youre tired, I dare say.
You, I dare say, think otherwise.
3) I dare say往往也作为反语使用。
Oh, you mean to defeat our football team? I dare say you will. (噢!你们想赢我们的足球队?也许可以吧。)
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