1986年—1995年历年的考研英语真题集.pdf

1995年全国硕士研究生入学统一考试英语试题 Section UseofEnglish Ⅰ Sleep is divided into periods of so-called REM sleep, characterized by rapid eye movements and dreaming, and longer periods ofnon-REM sleep. 1 kind of sleep is at all well-understood,but REM sleep is 2 to serve some restorative function of the brain. The purpose of non-REM sleep is even more 3 . The new experiments, such as these 4 for the first time at a recent meeting of the Society for Sleep Research in Minneapolis,suggest fascinating explanations 5 ofnon-REM sleep. For example, it has long been known that total sleep 6 is 100 percent fatal to rats, yet, 7 _examinations of thedeadbodies,theanimalslook completely normal.Aresearcherhasnow 8 the mystery ofwhy the animals die.The rats 9 bacterial infections oftheblood, 10 their immune systems—theself-protectingmechanisrn against disease—hadcrashed. 1.[A]Either [B]Neither [C]Each [D]Any 2.[A]intended [B]required [C]assumed [D]inferred 3.[A] subtle [B]obvious [C]mysterious [D]doubtful 4.[A]maintained [B]described [C] settled [D]afforded 5.[A]inthelight [B]byvirtue [C]with theexception [D]forthepurpose 6.[A]reduction [B]destruction [C]deprivation [D]restriction 7.[A]upon [B]by [C]through [D]with 8.[A]paidattention to [B]caught sight of [C]laid emphasison [D]cast light on 9.[A] develop [B]produce [C] stimulate [D]induce 10.[A]if [B]asif [C]only if [D]ifonly Section ReadingComprehensio