题目内容

15．There is some doubt whether he will______ in the meeting．（　　）
A．turn onB．turn upC．turn downD．turn off

分析 人们怀疑他是否会在会议上出现．

解答 答案：B．根据There is some doubt 可知人们怀疑后面的内容，所以后半句应该表示他是否会在会议上出现，所以用turn up 表示出现，露面．因此答案是B．其他选项的含义分别是A"打开"；C"调小，拒绝"；D"关闭"．

点评 考查动词短语辨析．turn up 的主要用法有：
1．出现；出席；被找到，发现；将（声，光等）调大；查字典；发生（情况）
2．出现；找到；证明是
3．出现；放大（灯光，收音机，煤气等）

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