题目内容
18．─Have you sent your grandparents an e-mail telling them you arrived already？─No，______ of them can use a computer．（ ）
| A． | none | B． | both | C． | neither | D． | all |
分析 -你发送你的祖父母电子邮件告诉他们你已经到了吗？
-没有，他们都不会用电脑．
解答 答案：C．选项A是None 一般要跟of 连用，表示：没有人，没有任何东西；B是两者都，用在肯定句，做主语时谓语动词用复数；C是两者都不，来表达否定意思；D是所有全部（三者三者以上）；根据Have you sent your grandparents an e-mail telling them you arrived already？你发送你的祖父母电子邮件告诉他们你已经到了吗？和No，______ of them can use a computer没有，他们…可知答案是否定的，用于两者之间，应该表两者都否定，故用neither．故选C．
点评 在做题时首先找出考点（不定代词），然后再掌握用法和区别（不定代词的区别）；再结合题干做出正确的选择．
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13．Ⅰ．根据对话内容，选择正确答案．
A：You must be really excited about leaving for America tomorrow，Li？
B：Yeah．（66）B
A：Why？
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B：（68）C
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The next day，call or write a thank-you note to say how much you enjoyed the evening．
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A：Why？
B：I don't know many of the customs and manners in the US．（67）A
A：Sure．
B：（68）C
A：Well，it's important to be on time when you're invited for dinner．（69）D
B：Then how longmay I stay there？
A：（70）EOr you seem to be getting tired and running out of things，it's time to leave．
The next day，call or write a thank-you note to say how much you enjoyed the evening．