◎ 题干
同义句转换
1. He concentrated his energies on study.
   He        _his energies _       study.
2. I must concentrate on my new task.
   I must be      _ _  my new task.
3. He fixed his eyes on his book and didn't notice we came in.
   He       his attention       his book and didn't notice we came in.
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“同义句转换1. He concentrated his energies on study. He_his energies _ study.2. I must concentrate on my new task. I must be_ _my new task.3. He fixed his …”主要考查了你对  【动词短语】【一般过去时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。