题目内容
17．-What about going to the zoo？-We ____ take a taxi．It's not far from here．（ ）
| A． | can't | B． | mustn't | C． | couldn't | D． | needn't |
分析 -去动物园吧？
-我们不必打的去，动物园离这里并不远．
解答 答案D．
A can't不能，B mustn't禁止；不准，C couldn't不能，D needn't 没有必要，不必．由最后一句"It's not far from here"可以知道说话的人现在所处的地方离动物园不远，所以可以推断前半句是"我们没有必要坐的士车（去动物园）"，答案D符合题意，故答案选D．
点评 此题主要考查不同的情态动词的否定形式所表达的意义与用法上的区别，学会辨析can't，B mustn't，C couldn't和 D needn't，此题正确答案就很明显了．
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