精选优质文档-倾情为你奉上2011年硕士研究生入学考试考研英语真题Section I Use of English Directions： Read the following text. Choose the best word（s） for each numbered blank and mark A， B， C or D on ANSWER SHEET 1. （10 points）Ancient Greek philosopher Aristotle viewed laughter as “a bodily exercise precious to health.” But _1_some claims to the contrary， laughing probably has little influence on physical fitness Laughter does _2_short-term changes in the function of the heart and its blood vessels， _
