题目内容

5．When the foreign guest arrived，I found him speaking good Chinese．I       his speech into Chinese the night before．（　　）
A．needn't translateB．didn't need to translate
C．needn't have translatedD．didn't need translating

分析 当外宾到达的时候，我发现他的汉语讲得很好．我前一天晚上不必把他的话翻译成汉语．

解答 答案是B．本题考查need 的否定结构．needn't do表示"（现在或将来）"不必；didn't need to do过去不必…；needn't have done本不必…（事实上却做了）；sth．need doing需要被…，D项结构错误，主语为I；根据语境，因为外宾汉语讲得流利，所以我"前一天晚上不必翻译他的话"，故选B．

点评 本题考查need的否定结构；要分清need的词性和相关的特殊用法，如didn't need to do和needn't have done的区别、need to do 和need doing的区别．

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