50.[A] case [B]means ID]way 1995年 Passage 2 Sleep is divided into periods of so-called REM sleep, characterized by rapid eye movements and dreaming, and longer periods of non-REM sleep.- 41 kind of sleep is at all well understood, but REM Sleep is 42 to serve some restorative function of the brain. The purpose of non-REM sleep is even more The new experiments, such as these_ 44 for the first time at a recent meeting of the Society for Sleep Research in Minneapolis, suggest fascinating explanations of non-REM sleep For example, it has long been known that total sleep 100 percent fatal to rats, yet, examination of the dead bodies, the animals look completely normal. A researcher has now 48 the mystery of why bacterial infections of the blood,_ 50 their immune systems -the self-protecting mechanism against diseases-had crashed 41.AJ Either [B Neither [C] Each DJA 42.[A]intended [C] assumed DI inferred 43.[A] subtle IC] mysterious D] doubtful 44.A] maintained [B described [CI settled ID] afforded 45.[A] in the light B by virtue [C] with the exception [ D] for the purpose 46.[A]reduction [B destruction D] restriction 47.JUpon Bby IC] through D] with 48.[A] paid attention [B]caught sight of [C] laid emphasis on [D] cast light on 49.[A] developed B]pI IC stimulated [D] induced 50.[A]if B]as if [C] only if [ D] if only 1996年 Passage 3 Vitamins are organic compounds necessary in small amounts in the diet for the normal growth and maintenance of life of animals including man. They do not provide energy do they construct or build any part of the body. They are needed for foods into energy and body maintenance. There are thirteen or more of them, and if 43 is missing a deficiency disease becomes Vitamins are similar because they are made of the same elements- usually carbon, hydrogen, oxygen, and nitrogen. They are different their elements are arranged differently, and each vitamin 47 one or more specific functions in the body enough vitamins is essential to life, although the body has no nutritional use for vitamins. Many people,- 50 believe in being on the "safe side"and thus take extra vitamins. However, well-balanced diet will usually meet all the body,'s vitamin needs 41.LEither [ B]s [ D]never 42.A]shifting [B]transferring [CAntering [Transforming 43.[AJany Some IFAnything [Something 44.[A]serious B apparent 45.A mostly B partially [C]sometimes RArely 46.A Jin that [B so that IC]such that [EXcept that 55 50.[A] case [B] means [C]method [D]way 1995 年 Passage 2 Sleep is divided into periods of so-called REM sleep, characterized by rapid eye movements and dreaming, and longer periods of non-REM sleep. 41 kind of sleep is at all well understood, but REM sleep is 42 to serve some restorative function of the brain. The purpose of non-REM sleep is even more 43 . The new experiments, such as these 44 for the first time at a recent meeting of the Society for Sleep Research in Minneapolis, suggest fascinating explanations 45 of non-REM sleep. For example, it has long been known that total sleep 46 is 100 percent fatal to rats, yet, 47 examination of the dead bodies, the animals look completely normal. A researcher has now 48 the mystery of why the animals die. The rats 49 bacterial infections of the blood, 50 their immune systems — the self-protecting mechanism against diseases — had crashed. 41.[A] Either [B] Neither [C] Each [D] Any 42.[A] intended [B] required [C] assumed [D] inferred 43.[A] subtle [B] obvious [C] mysterious [D] doubtful 44.[A] maintained [B] described [C] settled [D] afforded 45.[A] in the light [B] by virtue [C] with the exception [D] for the purpose 46.[A] reduction [B] destruction [C] deprivation [D] restriction 47.[A] upon [B] by [C] through [D] with 48.[A] paid attention to [B] caught sight of [C] laid emphasis on [D] cast light on 49.[A] developed [B] produced [C] stimulated [D] induced 50.[A] if [B] as if [C] only if [D] if only 1996 年 Passage 3 Vitamins are organic compounds necessary in small amounts in the diet for the normal growth and maintenance of life of animals, including man. They do not provide energy, 41 do they construct or build any part of the body. They are needed for 42 foods into energy and body maintenance. There are thirteen or more of them, and if 43 is missing a deficiency disease becomes 44 . Vitamins are similar because they are made of the same elements — usually carbon, hydrogen, oxygen, and 45 nitrogen. They are different 46 their elements are arranged differently, and each vitamin 47 one or more specific functions in the body. 48 enough vitamins is essential to life, although the body has no nutritional use for 49 vitamins. Many people, 50 . believe in being on the "safe side" and thus take extra vitamins. However, a well-balanced diet will usually meet all the body' s vitamin needs. 41.[A]either [B]so [C]nor [D]never 42.[A]shifting [B]transferring [C]altering [D]transforming 43.[A]any [B]some [C]anything [D]something 44.[A]serious [B]apparent [C]severe [D]fatal 45.[A]mostly [B]partially [C]sometimes [D]rarely 46.[A]in that [B]so that [C]such that [D]except that