1.John _______ such a thing about you.He never speaks ill of you behind your back..( 。
A.can't have saidB.might not have said
C.couldn't sayD.mustn't have said

分析 約翰不可能說那樣的關(guān)于你事.他從來不在你背后說壞話.

解答 答案是A.本題考查表示推測的情態(tài)動詞的用法.情態(tài)動詞must表示推測只能出現(xiàn)在肯定句中,表示有客觀依據(jù)的推測"準是,一定是",所以排除D;might表示推測往往出現(xiàn)在肯定句或否定句中表示不太肯定是推測"也許";can/could表示推測往往出現(xiàn)在否定句中,表示"不可能";根據(jù)下文"他從不在背后說壞話"推斷"John不可能那么說你",排除B.對已經(jīng)發(fā)生的事件的說明用"情態(tài)動詞+have done"的結(jié)構(gòu),所以答案是A.

點評 在正確理解情態(tài)動詞的基本含義的基礎(chǔ)上,整體理解語境中的情感態(tài)度,做出合理的判斷.

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