精选优质文档-倾情为你奉上2009年考研英语真题2009年全国硕士研究生入学统一考试英语试题Section I Use of EnglishDirections: 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) Research on animal intelligence always makes us wonder just how smart humans are. _1_ the fruit-fly experiments described in Carl Zimmer in the Science Times. Fruit flies who were taught to be smarter than the average fruit fly _2 to live shorter lives. This sug
