Be careful    _   too fast, or there    _   be an accident.

A．not to drive; must

B．to not drive; may

C．not drive; must

D．not to drive; may

 

【答案】

D

【解析】

試題分析：本題的含義是當(dāng)心開(kāi)車(chē)不要開(kāi)得太快，否則可能會(huì)發(fā)生交通事故。Be careful not to do表示當(dāng)心不要做某事的意思，動(dòng)詞不定式的否定形式在to do前加not，may表示可能性或許的意思，故本題選D。

考點(diǎn)：動(dòng)詞不定式的否定形式。

點(diǎn)評(píng)：在英文中，應(yīng)注意動(dòng)詞不定式也有否定形式，結(jié)構(gòu)為not to do sth，同時(shí)也應(yīng)該注意情態(tài)動(dòng)詞may表示可能性，后跟動(dòng)詞原形。

 

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