With her energy the research on AIDS.Mrs．Mason cannot spare much time with her family．( )A．fixing onB．fixed onC．to fix onD．having fixed on 题目和参考答案——青夏教育精英家教网——

题目内容

6．With her energy ___ the research on AIDS，Mrs．Mason cannot spare much time with her family．（　　）

A．

fixing on

B．

fixed on

C．

to fix on

D．

having fixed on

分析梅生夫人把精力都放到了艾滋病的研究上，抽不出太多时间陪家人．

解答答案：B
题干中with后接energy，构成with短语，动词要用非谓语形式；fix…on…把…集中到…上；fix与energy构成动宾关系，要用被动的过去分词．故选B．

点评 with+名词或代词+非谓语动词，是词意的搭配结构．非谓语动词的是选择要根据动词与名词的关系来确定，to表示未发生，doing表示主动，done表示被动．学习时，要注意区分和掌握．

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