2022-06-11 14:16:37
情态动词need的用法dare的用法
need的用法
1、need用作情态动词,后面接动词原形,通常用在否定句和疑问句中。
2、回答need时,肯定回答用must,否定回答用needn’t或don’t have to。
3、need用作实义动词时,有时态、人称和数的变化,后面加to do。
4、need to do和need doing
need to do中不定式的逻辑主语就是主句的主语;need doing是主动形式表示被动含义,即need前的主语就是need后面的动词所表示的动作的承受者。
注意:want和require作“需要”讲时,和need的用法相同。
5、needn’t have done与didn’t need to do
needn’t have done表示过去本不必做但实际上却做了某事
didn’t need to do表示过去不必做而实际上也没做某事
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dare的用法
1、dare用作情态动词,后面接动词原形,通常用在否定句和疑问句和条件句中;它没有人称和数的变化,但有过去式(dared)。
2、dare用作实义动词时,有时态、人称和数的变化,后面加to do。
注意:(1)I dare say意为“我认为,我相信,很可能”。
(2)dare用作实义动词时,表示“敢冒(危险),不俱”。
(3)dare可用于激将或挑战。例:He dared me to jump down.
题1: Zhang Ming is fond of _______ the Internet after school.
A. to surf B. surfing C. surfs D. surfed
The engineer the workers are fond of _______a machine at the moment.
A .repairing B. repaired C. is repairing D. repairs
The time we have wasted _______ computer games will never gained again.
A. to play B. playing C. played D. plays
题2: Mr. Smith is proud of _______ teaching Jack.
A. teach B. to teach C. teaching D. taught
The student Mrs. Zhang is proud of _______ to America for further education last year.
A. going B. went C. gone D. to go
The teaching building they had devoted half a year to _______ was destroyed in the earthquake.
A. built B. building C. to build D. builds
题1: BCB
详解:be fond of意为“喜欢”,后接动名词作宾语,因为of是介词。
详解:分析句子结构可知,the workers are fond of是定语从句,其先行词为engineer。that/who/whom作are fond of的宾语,被省略了;空格处做主句的谓语,根据时间状语at the moment可知,应用现在进行时。
详解:waste有一个句型:sb. waste time (in )doing sth.。这个句型可以进行变式:the time (that/which) sb. waste (in )doing sth.。在变式之后的句型中,(that/which) sb. waste (in )doing sth.为定语从句,time为先行词。
题2: CBB
详解:be proud of 意为“以……为骄傲”,后接动名词作宾语,因为of是介词。
详解:分析句子结构可知,Mrs. Zhang is proud of是定语从句,其先行词为engineer。that/who/whom作is proud of的宾语,被省略了;空格处做主句的谓语,根据时间状语last year
可知,应用一般过去时。
详解:waste有一个句型:sb.devote time to doing sth.。这个句型可以进行变式:the time (that/which) sb. devote to doing sth.。在变式之后的句型中,(that/which) sb. devote to doing sth.为定语从句,time为先行词。