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關(guān)閉窗口 情態(tài)動(dòng)詞考題的兩個(gè)側(cè)重點(diǎn)
一般情態(tài)動(dòng)詞考題的考查主要涉及兩個(gè)方面，一是對(duì)情態(tài)動(dòng)詞所用句型的考查，二是對(duì)情態(tài)動(dòng)詞在一定的語(yǔ)境中的意義的考查。如：
1. “Is John coming by train?” “He should, but he ________ not. He likes driving his car.”
A. must B. can C. need D. may
最佳答案為D。may 表推測(cè)，may not 意為“可能不(會(huì)坐火車(chē)來(lái))”。句中的 He should 為 He should come by train 之省略，由于其后出現(xiàn)轉(zhuǎn)折連詞 but，說(shuō)明語(yǔ)意有變化，再結(jié)合下文的 He likes driving his car，便可決定此題選D。注意，不能選B，因?yàn)?/FONT>can表示推測(cè)時(shí)通常不用肯定陳述句。
2. “I heard they went skiing in the mountains last winter.” “It ____ true because there was little snow there.”
A. may not be B. won’t be C. couldn’t be D. mustn’t be
此題最佳答案為C，主要由下文的 because there was little snow there 這一語(yǔ)境所決定，既然“沒(méi)下什么雪”，那么“滑雪”就應(yīng)是“不可能”，所以選 couldn’t be，即選C。
3. “Do you think he is lazy?” “I ________ so once, but I don’t now.”
A. may have thought B. can have thought
C. may think D. might think
答案選A。從答話人的語(yǔ)境可知，空格處的意思“曾經(jīng)這樣想過(guò)”，即對(duì)過(guò)去情況作推測(cè)，故應(yīng)用“情態(tài)動(dòng)詞+動(dòng)詞完成式”；又因?yàn)?/FONT> can 表推測(cè)不用于肯定句，故選A。
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