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Scientists are convinced _____ the positive effect of laughter _____ physical and mental health.

时间:2022-07-06 20:28:36

Scientists are convinced _____ the positive effect of laughter _____ physical and mental health.

A.of; on

B.by; in

C.of; at

D.on; at

答案及解析: A

解析:

试题

分析:考查固定搭配。Be convinced of相信…;

对…信服;

第二空前面的effect要和介词on连用;

句意:科学家们相信大笑对身体和精神都有积极的影响。故A正确。考点:考查固定搭配

点评:在高中英语里有很多的固定搭配,有名词和动词的搭配,也有名词和介词的搭配,在平时要加强积累,此类的固定搭配属于最基本的知识,如果学生有错误,则应该加强背诵并平时多解题,进而加以巩固

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