精选优质文档-倾情为你奉上21世纪大学英语读写教程第四册课后练习答案及翻译（Unit1-Unit6）Unit 1Text AComprehension of text1. He defines greatness as the lasting contribution which a person makes or has made to human civilization.2. The example of Churchill shows the importance of persistence and dedication in achieving greatness.3. Firstborns and only children tend to make good leaders in times of crisis, but middle- born children are better peacetime leaders.4. A 20th century politician should be an effective
