题目内容
17.-Another cup of tea?-No,thanks.I leave now.Lucy is waiting for me.( )
| A. | can | B. | may | C. | must | D. | need |
分析 --再来一杯茶吗?
--不,谢谢.我现在必须离开了.露西正在等我.
解答 答案:C.考查情态动词.句意"--再来一杯茶吗?--不,谢谢.我现在必须离开了.露西正在等我.",A能.B可以.C必须.D需要.can的语气比may要强烈,must最强烈,need需要,根据Lucy is waiting for me露西正在等我,可知我"必须"离开了.答案是C.
点评 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语,注意每个情态动词的不同之处,习惯用法,固定搭配等.结合语境完成试题.
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