文档介绍：1995年试题与分析
Sleep is divided into periods of so-called REM sleep, characterized by rapid eye movements and dreaming, and longer periods of non-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 of non-REM sleep.
For example, it has long been known that total sleep 6 is 100 percent fatal to rats, yet, 7 _examinations of the dead bodies, the animals pletely normal. A researcher has now
8 the mystery of why the animals die. The rats 9 bacterial infections of the blood, 10 their immune systems—the self-protecting mechanisrn against disease—had crashed.
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] in the light [B] by virtue [C] with the exception [D]for the purpose
6. [A] reduction [B] destruction [C] deprivation [D] restriction
7. [A] upon [B] by [C] through [D] with
8. [A] paid attention to [B] caught sight of[C] laid emphasis on[D] cast light on
9. [A] develop [B] produce [C] stimulate [D] induce
10. [A] if [B] as if [C] only if [D] if only
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Money spent on advertising is money spent as well as any I know of. It serves directly to assist a rapid distribution of goods at reasonable price, thereby establishing a firm home market and so making it possible to provide for export petitive prices. By drawing attention to new ideas it helps enormously to raise standards of living. By helping to increase demand it ensures an increased need for labor, and is therefore an effective way to fight unemployment. It lowers the costs of many services: without advertisements your daily newspaper would cost four times as m