Because of noise outside, Nancy had great difficulty ____________ (集中注意力在实验上).

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问题 Because of noise outside, Nancy had great difficulty ____________ (集中注意力在实验上).

选项

答案(in) concentrating on the experiment/focusing her attention on the experiment

解析 此句译为:外面太吵了,南希无法集中注意力做实验。本题考查两个短语的用法,一个是have difficulty (in) doing sth,该短语中,后面的动词要用现在分词形式;第二个短语是“集中注意力”。与此对应的有多个短语,如:focus/fix one’s attention on,concentrate on。翻译时需和前面短语的用法结合起来,把动词变成ing形式。
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