题目

There is an English saying: “Laughter is the best medicine.” Until recently, few people took the saying seriously. Now, however, doctors have begun to look into laughter and the___________ it has on the human body.A. harmB. strengthC. effectD. good

There is an English saying: “Laughter is the best medicine.” Until recently, few people took the saying seriously. Now, however, doctors have begun to look into laughter and the___________ it has on the human body.
  • A. harm
  • B. strength
  • C. effect
  • D. good

题目解答

答案

C

解析

本题考查名词辨析，核心在于理解固定搭配"have effect on"的用法。句子中需要填入一个能与"have"搭配，表示"对...产生的影响"的名词。关键点在于区分选项中各词的常见搭配和语境适用性。

选项分析

A. harm

harm通常与动词do搭配，如"do harm to"（对...造成伤害）。而题目中用的是have，因此搭配不当。

B. strength

strength意为“力量”，与have搭配时，常表示“拥有力量”（如"have strength to do sth"）。但此处需要表达“对身体的影响”，与语境不符。

C. effect

effect表示“效果、影响”，"have effect on"是固定搭配，意为“对...产生影响”。此处医生研究 laughter 的作用，effect最符合语境。

D. good

good意为“好处”，但英语中通常用"have a good effect on"表达“对...有益”。直接使用good搭配have不符合习惯用法。