标题：In some countries the average worker is obliged to retire at the age of 50 while in others people can work until they are 65 or 70. Meanwhile, we see some politicians enjoying power well into their eighties. Clearly, there is little agreement on an appropriate retirement age. Until what age do you think people should be encouraged to remain in paid employment? Give reasons for your answer.
在该文的引言段中，作者标明了自己的观念：It is my belief, however, that the longer an able person is allowed to work, the better for both the individual worker and the employer. 因而，主体段议论的就是年长的员工给企业，自己以至政府等三方面带来的诸多益处。
Thus, workers who can still demonstrate their capacity to carry out their work should not be asked to retire simply because they have reached a certain age. Societies that insist on early retirement may do well to look again at their policies。
标题：The idea of going overseas for university study is an exciting prospect for many people. But while it may offer some advantages, it is probably better to stay home because of the difficulties a student inevitably encounters living and studying in a different culture. To what extent do you agree or disagree with the statement? Give reasons for your answer.
作者在引言段中的观念是：But while overseas study has its drawbacks, the difficulties are far outweighed by the advantages. Indeed, people who go abroad for study open themselves up to experiences that those who stay at home will never have.因而，在主体段中，作者就着重论述海外留学的种种益处。
In conclusion, while any anxiety about going overseas for university study is certainly understandable, it is important to remember that the benefits offered by the experience make it well worthwhile.
标题：The mass media, including television, radio and newspapers, have great influence in shaping people’s ideas. To what extent do you agree or disagree with this statement? Give reasons for your answer.
在引言段中，作者是这样表达自己对大众传媒的观念的：The mass media have a powerful influence in shaping our lives. We have come to depend on them for information and entertainment, and in doing so, we let them affect important aspects of our lives.
In summary, I would agree that the mass media’s influence is certainly great. Indeed, with technological advancements such as the Internet bringing even more forms of electronic media to our homes and workplaces, it is likely that the media’s influence will grow even stronger.