题目内容
3．-Do you have a long ruler？一No．I don't．I have a short_______．（ ）
| A． | it | B． | one | C． | ones |
分析 你有一把长尺子吗？不，我没有，我有一把短尺子．
解答 答案：B．it 指示代词 它，指代前面提到的事物，与前面提到的事物是同一类同一个事物，同类同物；one，指示代词，一个，代指与前面起到的事物是同类事物，但不是同一个事物，同类异物；ones 指示代词，代指前面提到的同类事物，复数．此题中a long ruler与a short one 都是指尺子，一个长尺子，一个短尺子，用one 代指尺子，避免重复．故本题正确答案是B．
点评 此题考查指示代词，在熟知所提供词意及用法的基础上，结合句子意思便可得出正确答案．
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