43. The new music was built out of materials already in existence.
44. They freely took over elements from jazz， from American country music， and as time went on from even more diverse sources.
45. What developed was a music readily taking on various forms and capable of an almost limitless range of expression.
46. In studio recordings， new techniques made possible effects that not even an electronic band could produce live.
47. Electronic amplifiers also made possible a fantastic increase in volume， the music becoming as loud and penetrating as the human ear could stand
48. Often music was played out of doors， where nature provided the environment.
49 The social and political transformation of a country is essential to the development of the society.
50. All theories originate from practice and in turn serve practice.
51. Robots， becoming increasingly prevalent in factories and industrial plants throughout the developed world， are programmed and engineered to perform industrial tasks without human intervention. 52. The robots used in nuclear power plants handle the radioactive materials， preventing human personnel from being exposed to radiation. 53. Robots differ from automatic machines in that after completion of one specific task， they can be reprogrammed by a computer to do another one. 54. Other engineers are writing new programs allowing robots to make decisions such as whether to discard defective parts in finished products. 55. These future robots， assembled with a sense of touch and the ability to see and make decisions， will have plenty of work to do. 56. Anyone wanting to understand the industry of the future will have to know about robotics. 57. His words cast a new light on the problem. 58. We should be aware of the dangers of exposing children to violence on TV.
59. People in advanced industrial societies are increasingly concerned with opportunities for leisure and what they can do in their leisure time. 60. 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. 61. The specific use of leisure varies from individual to individual. 62. 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. 63. 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. 64. To impart positive leisure attitudes to the general public is essential for motivating them to use their leisure in creative and satisfying ways. 65. 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. 66. The more seriously this is sought， the more likely positive attitudes towards leisure as well as academic work will be encouraged. 67. You have to attach a label to a box while posting it. 68. We should make our lives relevant to the needs of the country. 69. He always has some positive ideas on company policy.
70. The problem of Jet Lag is one every international traveler comes across at some time. 71. The effects of rapid travel on the body are actually far more disturbing than we realize. 72. He later blamed his poor judgment on Jet Lag. 73. Now that we understand what Jet Lag is， we can go some way to overcoming it. 74. In time， the physiological system will reset itself， but it does take time. 75. It is not feasible to wait four days until the body is used to the new time zone. 76. That is by no means the best way of proceeding. 77. He didn‘t take alarm at the news. 78. The pianist promoted a grand benefit concert. 79. He didn’t want to be tied to a steady job.
80. The nearer a society approximates to zero population growth， the older its population is likely to be—at least， for any future that concerns us now. 81. To these now familiar facts a number of further facts may be added， some of them only recently recognized. 82. There is the appreciation of the salient historical truth that the aging of advanced societies has been a sudden change. 83. Taken together， these things have implications which are only beginning to be acknowledged. 84. There is often resistance to the idea that it is because the birthrate fell earlier in Western and Northwestern Europe than elsewhere，… that we have grown so old. 85. Long life is altering our society， of course， but in experiential terms. 86. Your account of what happened approximates to the real facts. 87. His earnings are out of all proportion to his skill and ability.
88. A minor-party or independent candidate，… can draw votes away from the major-party nominees but stands almost no chance of defeating them.
89. In deciding whether to pursue a course of action， they try to estimate its likely impact on the voters.
90. The slogan was meant as a reminder to the candidate and the staff to keep the campaign focused on the nation‘s slow-moving economy.
91. Whether voters accept this image， however， depends more on external factors than on a candidate‘s personal characteristics.
92. As in 1980， when Jimmy Carter lost to Ronald Reagan during tough economic times， the voters were motivated largely by a desire for change.
93. Bush tried to stir images of his strong leadership of the war， but voters remained concerned about the economy.
94. The invention is going to cause a big stir in the world.
95. You should save up money to make provision for the future.
96. Animal research is irrelevant to our health and it can often produce misleading results.
97. It would be completely irresponsible and unethical to use drugs on people that had not been thoroughly tested on animals.
98. One experiment in nerve regeneration involves cutting a big nerve in a rat‘s leg， leaving its leg paralysed.
99. Even with these new developments in research， only a tiny proportion of all tests are done without using animals at some stage.
100.The use of animals in experiments cannot stop immediately if medical research is to continue and consumer products are to be properly tested.
101. When it comes to research into heart disease and its effects on the body， we do not have adequate substitutes for the use of animals.
102. I was surprised to see his room in such a litter.
103. The conditions that existed ten years ago are reproduced today.
104. Until recently daydreaming was generally considered either a waste of time or a symptom of neurotic tendencies. 105. At its best， daydreaming was considered a compensatory substitute for the real things in life. 106. As with anything carried to excess， daydreaming can be harmful. 107. There is a growing body of evidence to support the fact that most people suffer from a lack of daydreaming rather than an excess of it. 108. Daydreaming significantly contributes to intellectual growth， power of concentration， and the ability to interact and communicate with others.