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共用题干 第一篇In the dark night of the desert,a group of U.S.Air Force scientists is testing a new device ...
共用题干
第一篇
In the dark night of the desert,a group of U.S.Air Force scientists is testing a new device for a missile to target.Designed to seek out the heat of an enemy aircraft engine,it is now going through its paces by tracing the movement of a flashlight waving thirty feet away in the darkness.A hundred yards away,unseen by the man,a rattlesnake sliding between the stones senses a patch of warmth. Although the snake's mechanism is small enough to be packed into a head the size of a nut,it can detect a change in temperature of one-thousandth of a degree.With a sound the snake closes in and strikes for the kill.
Whenever we look in the animal world we find the same story.Almost anything that man can do,nature has already done better. So,it is for the purpose of learning from nature that a new science called bionics has grown up.Its aim is to find out how animal's instruments work so that man can copy them for his own purpose.
Imagine being able to know a friend several miles off by his smell. Male silk moths can do this. Their antennae are so sensitive to the chemical odor of female moths that they can detect their presence by picking up only one molecule of the chemical.Even with their most sensitive instruments, human cannot approach this perfection.
Studying beetle's eyes has already paid off. A group of scientists in Germany found that a beetle can accurately measure with its eyes the speed of moving background.After finding out how a beetle accomplishes this scientists built a machine that operated on the same principle.This instrument is able to determine the ground speed of moving aircraft with a high degree of accuracy. The goal for bionics is to______.
第一篇
In the dark night of the desert,a group of U.S.Air Force scientists is testing a new device for a missile to target.Designed to seek out the heat of an enemy aircraft engine,it is now going through its paces by tracing the movement of a flashlight waving thirty feet away in the darkness.A hundred yards away,unseen by the man,a rattlesnake sliding between the stones senses a patch of warmth. Although the snake's mechanism is small enough to be packed into a head the size of a nut,it can detect a change in temperature of one-thousandth of a degree.With a sound the snake closes in and strikes for the kill.
Whenever we look in the animal world we find the same story.Almost anything that man can do,nature has already done better. So,it is for the purpose of learning from nature that a new science called bionics has grown up.Its aim is to find out how animal's instruments work so that man can copy them for his own purpose.
Imagine being able to know a friend several miles off by his smell. Male silk moths can do this. Their antennae are so sensitive to the chemical odor of female moths that they can detect their presence by picking up only one molecule of the chemical.Even with their most sensitive instruments, human cannot approach this perfection.
Studying beetle's eyes has already paid off. A group of scientists in Germany found that a beetle can accurately measure with its eyes the speed of moving background.After finding out how a beetle accomplishes this scientists built a machine that operated on the same principle.This instrument is able to determine the ground speed of moving aircraft with a high degree of accuracy. The goal for bionics is to______.
参考答案: B
参考解析: 本题是综合阅读能力考查题。题目是：作者把响尾蛇和导弹作比较的目的是什么。选项A“表现导弹的致命性”；选项B“说明什么是仿生学”；选项C“说明人类比自然春智”；选项D“说明响尾蛇很危险”。综观全文可知，答案为B。
本题是阅读综合能力考查题。题目是：研究雄蚕峨引致对什么研究的新方法。选项A“发现地下水流”；选项B“制作光滑布料”；选项C“检测有毒气体”；选项D“交流”。根据第三段内容可知，答案为C。
本题是细节考查题。accomplish“达到目的，取得结果”。因此只能选A。
本题是综合阅读能力考查题。选项A“研究甲壳虫眼睛能有助于科学家测量物体速度”；选项B“雄蚕蛾在几英里外能通过嗅觉感觉到雌蚕蛾的存在”；选项C“文章讨论的动物的器官的功能与人类皮肤相似”；选项D“仿生学在军事上的应用能发展这一学科”。综观全文可知，答案为C。
本题是综合阅读能力考查题。题目是：仿生学的目的是什么。选项A“解释动物器官怎么发挥作用”；选项B“用人造机器模仿动物行为”；选项C“证明这一科学有用性”；选项D“将科学运用到动物研究方面”。根据第二段内容可知，答案为B。
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