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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)坐火車來)”。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，說明語意有變化，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 這一語境所決定，既然“沒下什么雪”，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。從答話人的語境可知，空格處的意思“曾經(jīng)這樣想過”，即對(duì)過去情況作推測(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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