--- Isn’t that Ann’s husband over there ?

--- No, it _______ be him--- I’m sure he doesn’t wear glasses.

A.can’t            B. must not         C.won’t           D.may not

 

【答案】

A

【解析】

試題分析:考察情態(tài)動詞用法。Can’t不可能;must not千萬不能,禁止;won’t不會;may not也許不;句意:—那邊的那個是Ann的丈夫嗎?—不,不可能是他。我確信他不帶眼鏡的。Can’t是有把握的否定推測。根據(jù)句意說明A正確。

考點:考察情態(tài)動詞用法

點評:英語中有不少情態(tài)動詞都可以表示推測,其語氣有強(qiáng)有弱,表示的可能性有大有小,現(xiàn)將它們的用法歸納如下:1. 接近100%的可能,只有must才具有這么高的可能性,它的意思是“一定”“肯定”,所作出的推測幾乎接近事實。如:He must be coming by bus. 他一定是乘公共汽車來。2. 很有可能,表示可能性較大的情態(tài)動詞主要有may, should, ought to,它們大致相當(dāng)于漢語的“可能”“應(yīng)該”“按理會”。 3. 一般性的可能,在所有表示推測的情態(tài)動詞中,might和could所表示的可能性最小,由于它們的語氣較委婉,較不確定,所以往往相當(dāng)于漢語的“可能”“也許”“說不定”等。4. 理論上的可能性,表示理論上的可能通常是用can,且可以用于肯定句中。

 

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