79. He later blamed his poor judgment on Jet Lag.

　　80. Now that we understand what Jet Lag is， we can go some way to overcoming it.

　　81. In time， the physiological system will reset itself， but it does take time.

　　82. It is not feasible to wait four days until the body is used to the new time zone.

　　83. That is by no means the best way of proceeding.

　　84. He didn‘t take alarm at the news.

　　85. The pianist promoted a grand benefit concert.

　　86. He didn‘t want to be tied to a steady job.

　　Unit 9

　　87. 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.

　　88. To these now familiar facts a number of further facts may be added， some of them only recently recognized.

　　89. There is the appreciation of the salient historical truth that the aging of advanced societies has been a sudden change.

　　90. Taken together， these things have implications which are only beginning to be acknowledged.

　　91. 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.

　　92. Long life is altering our society， of course， but in experiential terms.

　　93. But too much of that lengthened experience， even in the wealthy West， will be experience of poverty and neglect， unless we do something about it.

　　94. Your account of what happened approximates to the real facts.

　　95. His earnings are out of all proportion to his skill and ability.

　　Unit 10

　　96. A minor-party or independent candidate，… can draw votes away from the major-party nominees but stands almost no chance of defeating them.

　　97. Party loyalty has declined in recent decades， but more than two-thirds of the nation‘s voters still identify themselves as Democrats or Republicans.

　　98. In deciding whether to pursue a course of action， they try to estimate its likely impact on the voters.

　　99. 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.

　　100. As in 1980， when Jimmy Carter lost to Ronald Reagan during tough economic times， the voters were motivated largely by a desire for change.

　　101. Whether voters accept this image， however， depends more on external factors than on a candidate‘s personal characteristics.

　　102. As in 1980， when Jimmy Carter lost to Ronald Reagan during tough economic times， the voters were motivated largely by a desire for change.

　　103. Bush tried to stir images of his strong leadership of the war， but voters remained concerned about the economy.

　　104. The invention is going to cause a big stir in the world.

　　105. You should save up money to make provision for the future.

　　Unit 11

　　106. Animal research is irrelevant to our health and it can often produce misleading results.

　　107. It would be completely irresponsible and unethical to use drugs on people that had not been thoroughly tested on animals.

　　108. If thalidomide were invented today， it would never be released for human use because new tests on pregnant animals would reveal the dangers.

　　109. The number of animals used in laboratory tests has declined over the last 20 years

　　110. One experiment in nerve regeneration involves cutting a big nerve in a rat‘s leg， leaving its leg paralysed.

　　111. Even with these new developments in research， only a tiny proportion of all tests are done without using animals at some stage.

　　112. The use of animals in experiments cannot stop immediately if medical research is to continue and consumer products are to be properly tested.

　　113. 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.

　　114. As research techniques become more advanced， the number of animals used in experiments may decrease， but stopping testing on animals altogether is a long way away.

　　115. I was surprised to see his room in such a litter.

　　116. The conditions that existed ten years ago are reproduced today.

　　Unit 12

　　117. Until recently daydreaming was generally considered either a waste of time or a symptom of neurotic tendencies.

　　118. At its best， daydreaming was considered a compensatory substitute for the real things in life.

　　119. As with anything carried to excess， daydreaming can be harmful.

　　120. 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.

　　121. Daydreaming significantly contributes to inte

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