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Man first appeared on earth about 2 million years ago. Then he was little more than an animal, but early man had a big advantage
Man first appeared on earth about 2 million years ago. Then he was little more than an animal, but early man had a big advantage
admin
2010-05-05
48
问题
Man first appeared on earth about 2 million years ago. Then he was little more than an animal, but early man had a big advantage over the animals. He had in his brain special groups of nerve cells, not present in animals, that enabled him to invent a language and use it to communicate with his fellow men. (46)
This ability to speak was of great value because it allowed men to share ideas, and to plan together, so that tasks impossible for a single person could be successfully undertaken by intelligent team-work.
Speech also enabled ideas to be passed on from generation to generation so that the stock of human knowledge slowly increased.
It was this special ability that put men far ahead of other living creatures in the struggle for existence. (47)
He mastered darkness first with dim lights and later with brighter and brighter lamps, until he can now make for himself so dazzling a light with an arc lamp that, like the sun, it is too strong for his naked eyes.
(48)
Man found that his own muscles were too weak for the work which he wanted to do; be explored many other forms of power until now he has his hands on the ultimate source of physical energy, the nuclear power.
From man’s earliest days the flight of birds has raised his wonder and desire. Why should he not fly as they did? Then he began to experiment. At last he learnt how to make the right machines to carry him through the air. Now he can fly faster than sound. Already he has plans for conquering space, and a series of experiments has been completed. (49)
It will not be long now before man takes a giant step away from his planet and visits the moon, learning what it is like to have no weight to his body, no upward direction and no downward.
Man, always a wanderer, has to overcome the difficulty of adapting himself to different climates. (50)
Fortunately, in spite of having no thick skin or warm fur to protect him, he is peculiarly strong compared with other living creatures, most of whom are unable to live far outside the region that suits them best.
选项
答案
人类发现,他的肌肉力量太弱,无法完成他想做的工作;他探索过许多形式的动力—直到现在他已掌握了最大的物理能源,即核能。
解析
have one’s hands on拥有。the nuclear power作同位语,说明前面的名词词组:the ultimate source of physical energy;which引导的定语从句修饰the nuclear power。这种句型结构"名词+同位语+定语从句"是书面英语中常见的结构。例如:Jetlag is actually caused by disorder of your "body clock",a small cluster of brain cells that controls the timing of biological functions.(喷气时差反应实际上是由于"生物钟"紊乱引起的。所谓生物钟是一小群脑细胞控制着生物功能的时间节奏)。这一语法现象很重要,以往的考研文章中经常出现,务必推敲并掌握。
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0
考研英语一
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