In the 17th century, a writer explained the theory about the function of laughte

游客2023-09-17  18

问题 In the 17th century, a writer explained the theory about the function of laughter supported by most people. [br] According to the author, the development of laughter is based on ______.

选项

答案 the development of speech

解析 最后一段第1句:The development of speech undeniably is an indispensable factor in the development of man’s  capacity to think and establish a mastery of his environment;it was also, I theorize,the basic condition in the development of laughter.空白处需要名词性成分。题目把原文第2个分句中的主动语态换成了被动语态,所以答案为主语it的所指。根据分号提示,it指代第1个分句的主语the development of speech,即答案所在。
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