《2009年全国硕士研究生入学统一考试英语试题及解析》.pdf

免费大学网 2009 年全国硕士研究生入学统一考试英语试题 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) Research on animal intelligence always makes me wonder just how smart humans are. 大1家 the fruit-fly experiments described in Carl Zimmers piece in the Science Times on Tuesday. Fruit flies who were taught to be smarter than the average fruit fly 大2家 to live shorter lives. This suggests that 大3家 bulbs burn longer, that there is an 大4家 in not being too terrifically bright. Intelligence, it 大5家 out, is a high-priced option. It takes more upkeep, burns 络 more fuel and is slow 大6家 the starting line because it depends on learning — a 网 gradual 大7家 — instead of instinct. Plenty of other species are able to learn, and 考 one of the things theyve apparently learned is when to 大8家 . 越 Is there an adaptive value to 大9家 intelligence? Thats the question behind 京 this new research. I like it. Instead of casting a wistful glance 大10家 at all the 南 species weve left in the dust I.Q.-wise, it implicitly asks what the real 大11家 of our own intelligence might be. This is 大12家 the mind of every animal Ive ever met. Research on animal intelligence also makes me wonder what experiments animals would 大13家 on humans if they had the chance. Every cat with an owner, 大14家 , is running a small-scale study in operant conditioning. we believe that 扫描右侧二维码 获赠更多免费资源