1.计算机的用途并不只这些，至少还可以在增加几项。
The applicatioins of a computer do not end here. At least, several other uses can be add.2.虽然上世纪取得了人类历史上最伟大的科学成就，但科学家们相信本世纪还会取得更大的成功。
Although last century saw the greatest scientific achievements in human history, scientists believe the present century will see even greater successes.3.水是由氧和氢组成，所以在获得电能后，水就可以分解为氧和氢。
Water is composed of oxygen and hydrogen; therefore, given electrical energy it can be split into these two elements.4.三角形三个角之和是180°，三角形任意两边之和大于第三边，这些都是常识。
It is common senses that the sum of the angles of a triangle is180°and that the sum of any two sides of a triangle is greater than the third side.5.在科研工作中，经常需要进行一系列的试验，各试验之间的时间间隔可能一致，也可能依次缩短。
In scientific research, it is often necessary to do a series of tests either at regular intervals or with each test closer in time to the next one.6.许多人对动物是不是有感情感到疑惑，而这一领域里的大多数研究人员也只能说：许多动物的确是有怕的感觉的。
Many people wonder whether animals have feelings; and most researchers in this field canonly say that many animals do experience fear.7.现在已经有了可以穿戴在身上的计算机，它们是设计来让使用者穿戴在身上，其中有些计算机能够用声音启动，或者能直接使用声音邮件。
Wearable computers are now available. They are designed for the user to wear on his body, with some models capable of being voice-activated or of directly accessing voice mail.8.有历史记载的最猛烈的地震之一是1906年发生，在拉丁美洲，其威力相当于100颗氢弹。
1815年印度尼西亚的一次火山爆发，其威力相当于10,000颗氢弹。
而6,500万年前撞击到地球上来的一颗流星，引发了爆炸，其威力相当于10,000,000颗氢弹！One of the most violent earthquakes recorded in history occurred in Latin America in 1906, which had the eqivalent of 100 H-bombs. A volcanic eruption in Indonesia in 1815 had the equivalent of 10,000 H-bombs. However, a meteor that hit the earth 65 million years ago caused an explosion of the equivalent of 10 million H-bombs!9.女人一般活得比男人长。
有证据表明男人生活得更富于冒险性。
男人吸烟多、喝酒多，结果突发心脏病的危险也就更大。
从历史上看来，女人死于生孩子，男人死于战争。
现在生孩子已经没有危险，而战争则继续存在。
Women generally live longer than men. Evience suggests men live more adventurously. They smoke and drink more and, consequetly, have a greater risk of heart attack. Historically, women died in childbirths and men in wars. Now childbirth is no more risky, but wars still exist.10.受地球气候变暖的影响，喜马拉雅山上的冰川正在以加速度缩减，其结果将会使中国、印度、尼泊尔的数以亿计的依靠源自冰川的河流为生的人缺乏用水。
Due to the effects of global warming, glaciers in the Himalayas are reducing at an accelerating rate, which will result in water shortage for hundreds of millions of people who rely on glaciers-originated rivers in China, India and Nepal.11.科学家们认为火星上曾经有过生命，甚至现在也还有可能有。
他们发现火星上有如此大量的甲烷，使得人们完全有理由这样相信，因为只有生命才能成为这么多甲烷的来源。
Scientists think that there was, and even can still be, life no Mars. They found there is such a great amount of methane on Mars that makes it entirely reasonable for people to believe so, because life alone can be the source of so much methane.12.由于科学可能是一把双刃剑，所以随时都要提防有人把新技术用于不正当的用途。
比如，我们就应该防止医疗上用的克隆，被利用于有如复制人类这样的有违道德的用途。
Since science can be a double-edged sword, there is always the need to guard against any improper use of new technologies. For example, we should prevent therapeutic cloning from being employed for immoral purposes such as human reproduction.13.正在规划中的香港—珠海—澳门大桥公路，可以把香港到澳门和珠海之间的距离，从目前的60公里缩短到30公里，并且把路上时间减少到完全不超过半小时。
The Hongkong-Zhuhai-Macao Bridge Highway, which is being planned, will shorten the distnce from Hongkong to Macao and Zhuhai from the current 60 km to 30 km and reduce the journey time to well within half an hour.14.如果我们人类一旦登上火星，就可以首先用杯来把火星加热到更像地球的温度，以使火星能适合于人类居住。
If we humans could ever get to Mars, we might first of all use plutonium to heat up the planet to a more earth-like temperature so as to make it suitable for humans to live on.15.禽流感病毒可能会在人类中造成杀死几百万人的流行病，这一威胁性是实际存在的。
病毒在禽类生产系统中继续传播得越久，人类受感染的几率就越高。
The threat is real that the bird flu virus will create a human epidemic that could kill millions of people. The longer the virus continues to circulate in poultry production systems the higher is the probability of infection of humans.16.建立一个生态城市，使得城市居民享受到绿色、健康的环境，已经在中国的许多城市中成为一种时尚。
人们认识到，树木和森林对城市环境的好坏起着重大的作用，对城市居民来说确实具有十分重要的意义。
Building an ecological city to make urban residents enjoy a green and healthy environment has become a fashion in many Chinese cities. It is acknowledged that trees and forests play significant roles in the urban enviroment and do have very important meanings for urban residents.17.每年，全世界都有几百万人吃了被有毒微生物污染的食物，以致生病或死亡。
我们应该怎样最有效地利用科学，来减少或者消灭这一重大的疾病负担？Every year, millions of people worldwide get sick or die as a result of eating food contaminated with poisonous microbes. How should we most effectively use science to reduce or eradicate this huge burden of disease?19.把人类送上火星进行探测的一种方法，是在月球上建立一个基地，用来作为踏脚石。