题目内容
17．-Oh，dear!Where is my English book？-There is one on the teacher's desk．Is it____？（ ）
| A． | your | B． | yours | C． | you | D． | mine |
分析 --噢，天哪！我的英语书在哪里？--在老师的桌子上有一本．它是你的吗？
解答 答案：B．结合选项，联系设空处前后的语境推测本题句意是"它是你的吗？"．根据在英语中，形容词性物主代词后面需跟名词，而名词性物主代词后面不能跟名词可知，由于设空处后面没有名词，所以应填名词性物主代词，再根据句意选yours，故选B．
点评 题考查物主代词的用法，形容词性物主代词后面跟名词，名词性物主代词后面不能跟名词．做此类题目，首先明确句意，在此基础上熟练掌握物主代词的用法便可做出正确答案．
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