英译汉1. The Committee prepared this paper because its members recognized that the government has failed to establish an energy policy capable of providing a comprehensive energy source mix that can meet our requirements for the last portion of this century and the greater portion of the next.该委员会制订这份文件,是因为该委员会的成员看到政府已不能制订能提供全面能源的政策,以满足我们在本世纪末和下一世纪的大部分时间里的需要。
2. Between 2 billion and 3 billion years ago, portions of the surface water, bathed by the energetic radiation from the sun, developed complicated compounds in organization sufficiently versatile to qualify as what we call “life”.在 20 亿年到 30 亿年前, 地球表面的一部分水在太阳的强辐射作用下, 导致了结构复杂的化合物出现。
这些化合物结构灵活多样, 足以被我们称为“生命”。
3. Insects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds, if it were not for the protection we get from insect-eating animals.假如没有那些以昆虫为食的动物保护我们, 昆虫将吞噬我们所有的庄稼, 害死我们的牛羊家畜, 使我们不能生存于世。
4. Such a large choice of materials allows and leads to the construction of new machines and equipment which were not possible to imagine on the limited choice given to the engineer of a hundred years ago.由于在材料方面有这样广泛的选择余地,因而现在可以制造许多新的机器和设备,而这些机器和设备在一百年前是不可能想象的,因为当时工程师选择材料的余地有限。
5. Up to the present time, throughout the eighteenth and nineteenth centuries, this new tendency placed the home in the immediate suburbs, but concentrated manufacturing activity, business relations, government, and pleasure in the centers of the cities.到目前为止, 经历了18和19两个世纪, 这种新的倾向是把住宅安排在城市的近郊, 而把生产活动、商业往来、政府部门以及娱乐场所都集中在城市的中心地区。
1. The classical Greek civilization knew of seven metals: gold, silver, copper, iron, tin, lead and mercury. 在古希腊文明社会里，人们已经知道使用金银铜铁锡铅和水银七种金属。
2.Now we have a better understanding of Einstein’s special theory of relativity after attending a series of lectures on the topic.参加了一系列相关讲座后，我们加深了对爱因斯坦狭义相对论的理解.3.The holographic image (全息照片）must be viewed by looking directly through the film. Consequently，the size of the film limits the size of the audience that may view it at one time.全息图像一定要直接透过底片才能观看。
因此，底片的尺寸使同时观看的人数受到限制。
4.Sodium hydroxide （氢氧化钠）is a strong base.氢氧化钠是一种强碱。
5.The half-lives of certain radioactive substances are very long.某些放射性物质的半衰期很长。
6. Friction is usually the main cause of wear.摩擦是造成磨损的主要原因。
7.A body will expand when heated and contract when cooled.物体热胀冷缩。
8.They got a heavy fine due to the breach of the contract.由于违反了合同，他们受到了巨额罚款。
9. The image forms on the plate and is then developed.图像形成于底片，接着冲洗出来。
10. The next step would be to try to develop means for sending television pictures. 下一步就是要寻求发送电视图片的方法了。
1.Matters consist of molecules and molecules of atoms.物质是由分子组成的，而分子是由原子组成的。
2. Accurate in operation and high in speed, computers can save man a lot of time and labor.由于计算机运算准确，速度快，所以能节省人类大量的时间和精力。
3.Solids in greatly different degrees resist being changed in shape.各种固体抗形变的程度极不相同。
4.Machinery has made the products of manufactories very much cheaper than formerly.因为使用机器的缘故，工厂的产品比以前价格便宜多了。
5.Changing the number of turns of coils may set up or set down the voltage.改变线圈匝数可以升压或降压。
6. In case the air moves slowly, there will be a breeze.空气慢慢流动，就会产生微风。
7. Physics is the study of heat, sound, magnetism, electricity, light, the properties of matter and what it is composed of.物理学研究热，声，磁，电，光，物质的性质及其成分。
8. Alternating current has a lot of advantages.交流电优点很多。
9.Throughout the world come into use the same signs and symbols of mathematics.全世界都采用相同的数学符号。
10. Water evaporates more rapidly when the temperature is high than when it is low.温度高，水蒸发得快；温度低，水蒸发得慢。
1.Among the most noteworthy achievements at that time was the realization that light consists of electromagnetic waves.当时最引人注目的成就之一是人们认识到了光是由电磁波构成的。
2.The 1960s witnessed the great advance in electronics industry with the emergence of the large-scale integrated circuits随着大规模集成电路的出现，电子工业在60年代取得了巨大发展。
3.The electric resistance of iron is not so small as that of copper.铁的电阻不像铜的电阻那样小。
4. The nature of the organism causing measles remained unclear until 1911, when it was proved to be a virus. 引起麻疹的有机体的性质曾一直是一个不解之迷，直到1911年才证实它是一种病毒。
5. A continuous increase in the temperature of a gas confined in a container will lead to a continuous increase in the internal pressure within the gas. 不断提高密闭容器内气体的温度，会使气体内的压力不断增大。
6.The new liquid crystals feature wide working temperature range, low operation voltage and high reliability.新型液晶的特点是工作温度范围宽，工作电压低，可靠性高。
7.The number of molecules in any object is unimaginably large.任何一种物体中的分子数量是大得难以想象的。