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21世纪大学英语读写教程第二册单元10课文介绍
导语：技术的快速发展正在像其他领域一样影响着教育，未来的30年会有什么样的技术影响21世纪的教育呢，下面小编带来关于这方面的21世纪大学英语课文，欢迎大家前来学习。
Pre-reading Activities
First Listening
1. Rapid advances in technology are affecting education just like every other field. Have a look at this list of products and services that students of the future will have, and imagine what each one does. Then, as you listen to the tape, circle the products and services that you hear the students talk about.
cyberbooks virtual classes automatic essay generators remote-control pencils Knowledge Transplant Centers
Second Listening
2. What other technological advances do you imagine will affect education in the 21st century? What about other aspects of human life and civilization?
The Next 30 years
Edward Cornish
In less than three years the world will reach the outstanding year 2000, and in less than four — on January 1, 2001, to be precise — a new millennium will begin. I am encouraged to offer my personal view of what is likely to happen in the next 30 years — a view that is heavily influenced by years of reading articles and books about the future.
To begin with, the next 30 years will almost certainly bring us incredible new achievements. The problems and dangers now facing the world are, in my judgement, far outweighed by solutions and opportunities. It is true enough that humans have an extraordinary genius for making mistakes, but it is balanced by our strong tendency to notice and correct them.
Rising Living Standards
The trends indicate that humans will be better off economically 30 years from now than they are today. Hundreds of millions of people will live in homes that will seem like palaces to their parents and grandparents. At the same time, brought together by telecommunications, people around the world will work together more efficiently than ever before. Expertise will flow easily and cheaply to places where it is needed. Computers and cellular phones will become commonplaces.
Thanks to genetic engineering, plants will grow bigger, mature faster, need less fertilizer, and resist insects and diseases. New materials will permit improvements in products ranging from refrigerators to automobiles; roofs may rarely need repairs; stockings and underwear may not wear out during the owners lifetime.
Living to Be 200 Years Old
Life expectancy will rise around the world, creating a rapidly growing proportion of old people in the population, as well as the age of the oldest humans — now above 120 years. Rapid progress in biotechnology suggests that breakthroughs may occur that will enable medical science to slow or reverse the aging process. This could mean that many people born in the next 30 years may live to be 200, 300, or more years old.
Increased life expectancy has some serious drawbacks, however. As people get older, more will find themselves disabled. Happily, increasingly sophisticated medicines and devices to assist the ill and disabled will become available in the coming decades. Researchers are finding ways to prevent and even partially cure blindness, deafness, muscular deterioration, and other problems connected with aging. This means that increasing numbers of people will be able to work and support themselves for years beyond the typical retirement age of 65.
The Global Village
The nations of the world will become more tightly integrated because of rapidly improving telecommunications and transportation. A global culture will develop rapidly and take its pick of clothing styles, foods, drinks, games, sports and customs from countries everywhere.
A network of superhighways will link up the nations of Asia, Europe, and Africa. Engineers are already talking enthusiastically about a tunnel under the Mediterranean at Gibraltar to link Europe with Africa. And superhighways across the Eurasian land mass will allow residents of Shanghai and Hong Kong to drive comfortably and rapidly to destinations like Paris, Rome, and Stockholm. Travelers in a hurry will, of course, still prefer to fly, especially over long distances. Space-planes should be in service within the next 20 years, making flights from Tokyo to New York in only a couple of hours.
Humans Colonize Space
We will push the frontiers of human settlement in all directions. The Moon will acquire its first permanent base, and the human population living in space will rise steadily, as manufacturing develops aboard spacecraft and the resources of other planets are explored. Meanwhile, advancing technology will also solve many of the problems of living and working in unfriendly environments on Earth, so the population of Antarctica and the Polar Regions will climb steadily. The forbidding Himalayas may experience a development boom, including, perhaps, luxury hotels for tourists.
The pace of ocean development will speed up as seaside nations increasingly assert their ownership of the resources off their shores. Ocean farming will become increasingly attractive as food prices rise. Studies have shown that the biological productivity of the ocean can be greatly increased by adding certain chemicals.
Future Dangers and Problems
The 21st century will be a century of fantastic achievement, but it may be accompanied by horrors on an unheard-of scale, as was the 20th century with its world wars and atomic bombs. The biggest single cloud hanging over the next 30 years is violence — crime, terrorism, and war. The Cold War is over, but hot wars on a smaller scale must be expected. In addition, nuclear weapons may be used by terrorists.
The worlds growing population and intensifying economic activity are increasingly destroying forests and polluting land, water, and air. Successful programs for reducing air pollution in many cities and restoring forests in many areas have demonstrated that environmental destruction is not irreversible, but the job will take great effort on a global scale.
Unfortunately, the steady rise in world population makes it likely that, for the world as a whole, environmental conditions will continue to worsen for some years to come. Though a number of precious animal species such as pandas may be preserved, thousands upon thousands of others will almost certainly perish during the next 50 years as their habitats shrink.
If we cannot look forward to a peaceful, problem-free future, we can at least comfort ourselves with the realization that it will probably be the best period of history we humans have ever experienced.
New Words
precise
a. 1. exact in form, detail, measurements, time, etc. 精确的
2. particular; exact; very 恰好的
3. sharply clear 极清楚的
millennium
n. a period of 1,000 years 一千年，千年期
outweigh
vt. 1. be greater in value or importance than 在价值(或重要性、影响等)上超过
2. be greater in weight 在重量上超过
grandparent
n. the parent of sb.s father or mother 祖父或祖母;外祖父或外祖母
*telecommunication
n. 电信，远距离通信
efficiently
ad. in a way that works very well and without waste 效率高地;能胜任地
cellular
a. of a telephone system that works by radio 蜂窝移动电话系统的
*commonplace
n. things frequently seen, not anything special 寻常的事物，常见的事物
a. 平凡的，普通的
engineering
n. the science or profession of an engineer 工程学;工程师行业
fertilizer
n. a natural or chemical substance to help plants grow well 肥料
refrigerator
n. 冰箱
rarely
ad. seldom 很少，难得
underwear
n. 内衣
expectancy
n. 期望;预期;(根据概率统计求得的)预期数额
life expectancy
预期寿命
proportion
n. 1. (of) the relative amounts, sizes, etc., of two or more things 比例，比
2. (of) a part or share of a whole 部分;份额
proportional
1. (of) in proportion 成比例的
2. concerning proportion 比例(上)的
biotechnology
n. 生物工艺学(把工艺技术应用于生物科学，如生物工程)
*breakthrough
n. 突破;突破性进展;重大成就，关键问题的解决
enable
vt. make able; make possible 使能够，使可能
sophisticated
a. 1. refined and advanced 高级的，尖端的
2. having or showing a lot of experience of the world and social situations 老于世故的
assist
V. (in, with) help 帮助，帮忙
*muscular
a. 1. 肌肉的
2. 肌肉发达的，强健的
deterioration
n. 退化;恶化;变坏
*deteriorate
vi. become worse 变坏;恶化;退化
retirement
n. the condition of stopping working because of old age 退休，退职
integrate
vt. (with, into) combine (parts) into a whole 使结合;使成一体
network
n. 1. a large system of lines, tubes, wires, etc. that cross or meet one another 网状系统
2. 广播网;电视网;广播(或电视)联播公司
superhighway
n. 超级(高速)公路
tunnel
n. 隧道，地道
resident
n. a person who lives (in a place) and is not just a visitor 居民
*residential
a. (of part of a town) consisting of private houses, without offices or factories (市镇的)居住的，住宅区的
residence
n. the place where one lives; a house, esp. a large important one 住所;住宅;公馆
*reside
vi. to have ones home 居住
destination
n. a place to which sb. or sth. is going or is being sent 目的地，终点
space-plane
n. 宇宙飞机
colonize, -ise
vt. 在…开拓殖民地
frontier
n. 边境，边界;边疆(the～)(美)(靠近未开发地带的)开发地区边缘;边远地区
settlement
n. 1. 定居;移民，殖民
2. 殖民地;居留地
permanent
a. lasting for a long time or forever 持久的;永久的
aboard
prep. on or into (a ship, aircraft, train, bus, etc.) 在(船、飞机、车)上，上(船、飞机、车)
spacecraft
n. a vehicle able to travel in space 宇宙飞船
boom
n. (a period of) sudden growth or prosperity 迅速发展(期);繁荣(期)
*assert
vt. 1. state or declare forcefully and clearly 断言;坚持说;宣称
2. show, esp. forcefully, the existence of 有力地表明;明示
ownership
n. the right of having sth. as ones property 所有权
*productivity
n. the rate or efficiency of producing; the ability to produce things生产率;生产力
fantastic
a. 1. wonderful, great 了不起的，极好的
2. extraordinary 异乎寻常的
3. (of an idea, plan, etc.) too unrealistic to be practical or reasonable 幻想的，异想天开的
fantasy
n. imagination; sth. one imagines but is unlikely to happen 想象;幻想;想象的事物
atomic
a. 原子(能)的
atom
n. 原子
bomb
n. 炸弹
vt. 轰炸，投弹于
terrorism
n. 恐怖主义;恐怖行为
*intensify
v. (cause to) become more intense 加强;增强;强化
panda
n. (大)熊猫，(大)猫熊
preserve
vt. (from) keep (sth.) safe; prolong the lifetime or existence of (sth.) 保护;保存，保藏
*perish
vi. 1. be completely destroyed 被摧毁，毁灭;消亡
2. die as a result of accident or very hard conditions 卒;丧生
habitat
n. the natural home of an animal or plant (动植物的)生境，栖息地
shrink
v. (cause to) become smaller (使)收缩，(使)缩小
peaceful
a. 1. without war 和平的
2. quiet and calm without any worry or excitement 平静的，宁静的
problem-free
a. without any problems 没有问题的
realization
n. 1. (an experience of) understanding and believing 认识;领悟
2. (of a hope or purpose) becoming real (指希望或目的的)实现
realize, -ise
vt. 1. understand and believe; be or become conscious of 了解;领悟;认识到
2. make (a hope, purpose, fear, etc.) real 使(希望、目的、恐惧等)实现
Phrases and Expressions
to begin with
1. in the first place 首先，第一
2. at first 起初，本来
in sb.s judgement
in sb.s opinion 在某人看来
be better off
having more money; being in a better condition 富裕;境况(尤指经济境况)好起来
wear out
(cause to) become useless, threadbare, exhausted 穿破，磨损;用坏;(使)疲倦;(使)耗尽
take ones pick
choose (sth. one likes from a group of things) (从…中)挑选(自己喜爱的东西)
link up
(cause to) join or connect 连接;联系
in service
being used; in use 在使用中
speed up
(cause to) move or develop faster (使)加快速度
on... scale
以…规模;在…范围内
as a whole
as one thing and not as separate parts 作为一个整体
look forward to
anticipate with pleasure 盼望;期待
Proper Names
Edward Cornish
爱德华·科尼什
Mediterranean
地中海(=Mediterranean Sea)
Gibraltar
直布罗陀海峡(=Strait of Gibraltar)
Eurasian
欧亚(大陆)的
Rome
罗马(意大利首都)
Tokyo
东京(日本首都)
the Himalayas
喜马拉雅山脉(位于亚洲)
课文内容的详细介绍：
一、课文背景
随着科技的飞速发展，克隆技术成为了科学界和公众关注的焦点。科学家成功克隆了绵羊多莉，这一里程碑式的成就不仅开启了动物克隆的新篇章，也引发了全球范围内关于克隆技术伦理、安全性和未来应用的广泛讨论。
二、课文主要内容
1. 克隆技术的突破
多莉的诞生：苏格兰科学家成功克隆了绵羊多莉，这是首次使用成年动物体细胞克隆出具有完全相同遗传信息的个体。多莉的诞生证明了高度分化的动物体细胞仍具有发育的全能性。
技术细节：科学家通过核移植技术，将成年绵羊的乳腺细胞中的细胞核移植到去核的卵母细胞中，经过刺激和培养后形成了新的胚胎，最终诞生了多莉。
2. 克隆技术的伦理争议
动物克隆的伦理问题：克隆动物是否应该被允许？克隆过程对动物是否残忍？克隆动物是否享有与自然繁殖动物相同的权利？
人类克隆的伦理禁忌：尽管克隆技术在药物生产和疾病治疗等方面具有潜在价值，但人类克隆的前景却引发了道德和法律上的巨大争议。克隆人可能涉及身份、自由意志和个人权利等复杂问题，因此多个国家已立法禁止人类克隆研究。
3. 克隆技术的安全性与未来应用
安全性问题：克隆过程中可能存在基因缺陷、发育异常和疾病易感性等风险。此外，克隆动物的寿命和健康状况也备受关注。
未来应用前景：尽管存在诸多争议和挑战，但克隆技术在农业、医学和生物学等领域仍具有广阔的应用前景。例如，克隆技术可用于培育优良品种、生产药用蛋白和进行疾病模型研究等。
三、课文教学意义
本单元课文通过介绍克隆技术的最新进展和引发的伦理争议，旨在引导学生关注科技发展的前沿问题，培养学生的科学素养和人文关怀精神。同时，课文还鼓励学生思考科技发展与伦理道德之间的关系，以及如何在科技进步的同时维护人类的尊严和权利。
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