说明
祈使句之后的附加疑问句
核心问题
（1）Come and join me, ____?
A. shall we B. shan't we C. will you D. won't you
(2) Have dinner with us, ____?
A. will you B. would you C. won't you D. haven't you 《新高考英语必考语法精析》(商务印书馆国际有限公司, p. 294, p. 298) 给的答案均是 won't you, 并解释说, “表邀请时, 用 won't you?”。请问能否用 will you? 呢?
词典解答
实际上,在肯定的祈使句之后,无论是表请求还是表邀请,都可以使用 will you? 或 won't you? 只是后者的语气比较温和,显得更客气一些:
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Be sure to write to us, will you? (请求) (全国高考, 93-35) 一定要给我们写信，好吗？
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Do sit down, won't you? (请求) 请坐下,好吗?
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Look after the children, won't you? 请照看这些孩子,好吗?
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Have a piece of cake, you? （邀请） 请吃块蛋糕，好吗？