·The student exploits every possibility to learn English.
这个学生利用一切可能性学英语。
·Our country is launching a campaign against waste.
我们国家正在开展反浪费运动。
·We should be always aware of the status of world affairs.
我们应该时刻关注世界形势。
·There are likely to be more difficulties than you were prepared for.
很可能遇到的困难比你想到的多。

Unit 5

·The new music was built out of materials already in existence.
·They freely took over elements from jazz, from American country music, and as time went on from even more diverse sources.
·What developed was a music readily taking on various forms and capable of an almost limitless range of expression.
·In studio recordings, new techniques made possible effects that not even an electronic band could produce live.
·Electronic amplifiers also made possible a fantastic increase in volume, the music becoming as loud and penetrating as the human ear could stand
·Often music was played out of doors, where nature provided the environment.
·The social and political transformation of a country is essential to the development of the society.
一个国家的社会和政治改革对社会的发展非常重要。
·All theories originate from practice and in turn serve practice.
所有的理论都来源于实践，并反过来为实践服务。

Unit 6
 
·Robots, becoming increasingly prevalent in factories and industrial plants throughout the developed world, are programmed and engineered to perform industrial tasks without human intervention.
·The robots used in nuclear power plants handle the radioactive materials, preventing human personnel from being exposed to radiation.
·Robots differ from automatic machines in that after completion of one specific task, they can be reprogrammed by a computer to do another one.
·Other engineers are writing new programs allowing robots to make decisions such as whether to discard defective parts in finished products.
·These future robots, assembled with a sense of touch and the ability to see and make decisions, will have plenty of work to do.
·Anyone wanting to understand the industry of the future will have to know about robotics.
·His words cast a new light on the problem.
他的话题使人们对这个问题有了新的认识。
·We should be aware of the dangers of exposing children to violence on TV.
我们应该意识到儿童接触有关暴力节目的危害。

Unit 7

·People in advanced industrial societies are increasingly concerned with opportunities for leisure and what they can do in their leisure time.
·Generally speaking, the quality of life, especially as seen by the individual, is meaningful in terms of the degree to which these various areas of life are available or provide satisfaction to the individual.
·The specific use of leisure varies from individual to individual.
·Experiences of a different nature, be it television watching or bird-watching, can lead to a self-renewal and a more “balanced” way of life.
·Such attitudes amount to a recognition that leisure is an important area of life and a belief that leisure can and should be put to good use.
·To impart positive leisure attitudes to the general public is essential for motivating them to use their leisure in creative and satisfying ways.
·It can be argued that the people with whom we come into contact in these various contexts are all likely to have exerted some influence in shaping our attitudes, interests and even skills relevant to how we handle leisure.
·The more seriously this is sought, the more likely positive attitudes towards leisure as well as academic work will be encouraged.
·You have to attach a label to a box while posting it.
·We should make our lives relevant to the needs of the country.
·He always has some positive ideas on company policy.

Unit 8
·The problem of Jet Lag is one every international traveler comes across at some time.
·The effects of rapid travel on the body are actually far more disturbing than we realize.
·He later blamed his poor judgment on Jet Lag.
·Now that we understand what Jet Lag is, we can go some way to overcoming it.
·In time, the physiological system will reset itself, but it does take time.
·It is not feasible to wait four days until the body is used to the new time zone.