美联乐闻出国系列:新托福百日百句百篇(第四册) 9787300225616

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《美联乐闻出国系列:新托福百日百句百篇(第四册)》中特意设计了供读者使用的“小试身手”练习框:在“句子翻译”这个部分中的“英文原文”之后给出了一个方框;在“汉英翻译练习”之后给出了三个方框。除了考虑到排版的美观之外,更重要的是大家可以尽情挥笔,动手写下心中的答案,一次次地打磨,找出不足,逐步改善翻译质量。在每天的末尾,我们还精心挑选了两到三篇的学生作业并进行批改。批改后的文章不是的标准答案,只是供读者参考,这样可以使它成为一本专门为你量身定做的、真正有效的备考材料。
作者简介

刘文勇,北京乐闻携尔教育咨询有限公司创始人,自称为浑身赘肉、有问必答的热心话唠,教授托福、SAT、GRE、GMAT。作品有“新托福真题详解”系列图书、“新托福百日百句百篇”系列图书、《去美国读本科》《去美国读研究生》等。
目录

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参考答案
阅读文章与真题配对统计表
考生经验与心得
文摘

版权页:

Our bodies require sleep in order to maintain health.In fact,we are programmed to sleep each night as a means of restoring our bodies and minds to their proper functions.Prior to the era of modern sleep research in the early 1920s,scientists regarded sleep as an inactive brain state.It was generally accepted that as night fell and sensory inputs from the environment diminished,so did brain function.In essence,scientists used to think that the brain simply shut down during sleep,only to restart again when morning came.
In 1929,however,an invention that enabled scientists to record brain activity challenged this assumption.From recordings known as electroencephalograms(EEGs),researchers could see that sleep was a dynamic behavior,in which the brain was not turned off at all but was highly active at times.01 Over time,sleep studies using EEGs and other instruments that measured eye movements and muscle activity revealad two main types of sleep.These were defined by characteristic electrical patterns in a sleeping person's brain as well as the presence or absence of eye movements.
The two main types of sleep are rapid—eye—movement(REM)sleep and non—rapid—eye—movement(NREM)sleep.In healthy adults,sleep typically begins with NREM sleep,which can be broken down into three distinct stages: N1,N2,and N3.In the progression from stage N1 to N3,brain waves become slower and more synchronized,and the eyes remain still.
ISBN9787300225616
出版社中国人民大学出版社
作者刘文勇
尺寸16