【答案解析】电子机械在科学研究、设计和经济计算方面的广泛应用可以使人们从繁重的计算劳动中解放出来。 [解析]
The wide application of electronic machines in scientific work, in designing and in economic calculations will free man from the labor of complicated computations.

【答案解析】几乎每个史学家对史学都有自己的界定，但现代史学家们的观点认为史学试图重现并阐明过去发生的重大事件。 [解析]
While there are almost as many definitions of history as there are historians, modern practice sees history as the attempt to recreate and explain the significant events of the past.

【答案解析】测试发现，在70多岁的人中，有半数到2/3的人智力上的机敏性和他们在30岁时不相上下。那些低于平均水平的人多为没有从小养成阅读习惯的人。 [解析]
On mental tests, half to two-thirds of the people in their 70s were as intellectually agile as people in their 30s. Those who fell below average tended to be people who had not make a lifelong habit of reading.

【答案解析】在国外做生意时，各公司均会接触来自不同文化背景的人。这些人常常操不同的语言，有各自独特的风俗习惯。这些差异会带来麻烦。 [解析]
When companies do business overseas, they come in contact with people from different cultures. These individuals often speak a different language and have their own particular custom and manners. These differences can create problems.

【答案解析】工业和我们每个人所需要的很多服务，都是由政府或我们的地方当局提供的。没有医院、道路、电力和铁路，这个国家便不能正常运转。 [解析]
Many of the services needed both by industry and each of us are provided by Government or our local authorities. Without hospitals, roads, electricity, railways, this country could not function.