2. 外语
  3. Since he saw that program on television, he has become _____ with physical fitness.

Since he saw that program on television, he has become _____ with physical fitness.

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问题 Since he saw that program on television, he has become _____ with physical fitness.
选项 A、engrossed
B、obsessed
C、focused
D、concentrated
答案B
解析 考查近义动词辨析。四个选项都有“全神贯注于……”之义，但它们常用的语态不同，常搭配的介词也不同。engross一般用于被动语态，且与介词in连用。focus既可用主动也可用被动语态，但与介词on连用。concentrate表示集中注意力时，一般只用主动语态，与介词on或upon连用。只有obsess一般与介词with搭配，且用被动语态。
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