Tiny Computers, Great Ideas DNA计算机狂想曲
- 详细资料
- 创建于 2007年2月15日
- 最后更新于 2024年5月25日
- 发布于 2011年12月19日
- 作者：Mike Lee
- 点击数：222
课文朗读
课文讲解
If someone told you that he had combined DNA with a computer, you would probably think he was going nuts. But not so fast! You might be guilty of not knowing the facts. ___1___ The potential of this new science is certain to astonish you.
如果有人告诉你，他已将DNA和计算机结合在一起，你大概会认为他快疯了。但别急！你可能还没弄清楚事情的真相。如今，计算机科技和DNA研究这两个领域正相结合，创造出DNA奈米科技领域。这门新科学的潜力铁定会令你震惊。
___2___ Think of it as binary computer code, which uses just two symbols (0 and 1) to write out instructions that computers follow. In DNA molecules, nucleotide bases act just like those zeroes and ones. ___3___ If you can decide how biological molecules interact, or in other words, if you can change their code, you can control what they do. The molecules become like tiny computers that spring into action at the right moment.
DNA奈米科技是将分子加以改造，使其在人体内执行特定任务。可将DNA奈米科技想成只用两种代号(0和1)撰写计算机指令的二进制代码。在DNA分子中，核甘酸碱基的角色就像0和1。改变碱基的顺序，那么DNA分子就能执行完全不同的功能。如果能决定生物分子如何互相作用，或换句话说，如果能改变分子的编码，就能控制他们的功能。这些分子就像在适当时机发挥作用的微型计算机。
These molecules already speak the “language” of living cells. ___4___ In theory, scientists could design molecules that are able to combat a blood clot, or a tumor. These made-to-order molecules could revolutionize how we treat certain illnesses. A molecular computer might act as a “doctor” within a cell. ___5___ In the future, doctors could be prescribing computers instead of pills!
这些分子已经会使用活细胞的「语言」，能轻易融入人体系统，而这种方式其他人造物都办不到。理论上，科学家可设计出对抗血凝块和肿瘤的分子。这些量身订做的分子会对治疗某些疾病的方法带来重大变革。如果我们快生病了，分子计算机就会像细胞中的「医生」，侦测出疾病并采取行动对抗它。未来，医生开的处方可能会是计算机，而非药丸！
−by Joe Henley
A. Change their sequence, and the DNA molecule will perform an entirely different function.
B. DNA nanotechnology involves engineering molecules and making them perform specific tasks right inside our bodies.
C. Today, the two worlds of computer technology and DNA research are coming together to create the field of DNA nanotechnology.
D. If we were to be infected with a disease, it would detect it and take action against it.
E. They could easily integrate into our bodies’ system, in a way that no other artificial creation could.
Vocabulary
单词发音
go nuts 发疯
biological [͵baɪəˋlɑdʒɪk!] adj. 生物的；生物学的
spring into action 突然采取行动 to suddenly begin moving or doing something
combat [kəˋmbæt] v. 与……战斗
prescribe [prɪˋskraɪb] v. 开（药方）
infect [ɪnˋfɛkt] v.【医】传染；侵染；感染
integrate [ˋɪntə͵gret] v. 使成一体，使结合，使合并[（+with/into）]
artificial [͵ɑrtəˋfɪʃəl] adj. 人工的
More Information
单词发音
DNA deoxyribonucleic acid 脱氧核糖核酸（染色体和基因的组成部分）
binary [ˋbaɪnərɪ] adj. 二进制的
nucleotide [ˋnjuklɪə͵taɪd] n. 核甘酸
base [bes] n.【化】碱；盐基
clot [klɑt] n.（血等的）凝块
made-to-order 订做的 something custom-made to the exact criteria and specifications
engineer [͵ɛndʒəˋnɪr] v. 设计，建造
nanotechnology [ˌnænotɛkˈnɑlədʒɪ] n. 奈米技术
Answer
|
1. ( C ) |
2. ( B ) |
3. ( A ) |
4. ( E ) |
5. ( D ) |