Question

When        if he hadany idea what the novel was about, Jack kept silent. He       have read it very carefully.

1. A.
   asking; needn't
2. B.
   asking; shouldn't
3. C.
   asked; can’t
4. D.
   asked; mustn^’t

Answer 1

C
試題分析：原句意思是當(dāng)被問(wèn)及他認(rèn)為這部小說(shuō)寫(xiě)了些什么，杰克就保持沉默。謂語(yǔ)動(dòng)詞ask和主語(yǔ)Jack是被動(dòng)關(guān)系。needn't have done 表示過(guò)去做了不必做的事情shouldn’t have done 本不該做某事can’t have done 表示對(duì)過(guò)去某種情況的懷疑或不確定mustn’t have done禁止做，故選C，最符合題意。
考點(diǎn)：本題重點(diǎn)考查情態(tài)動(dòng)詞的用法和非謂語(yǔ)動(dòng)詞。
點(diǎn)評(píng)：要掌握情態(tài)動(dòng)詞的用法，謂語(yǔ)動(dòng)詞ask和主語(yǔ)Jack是被動(dòng)關(guān)系。needn't have done 表示過(guò)去做了不必做的事情shouldn’t have done 本不該做某事can’t have done 表示對(duì)過(guò)去某種情況的懷疑或不確定mustn’t have done禁止做。