Unit2Unit2 FitFit forfor lifelife 课外阅读练习课外阅读练习阅读文章，选择正确答案，回答问题。阅读文章，选择正确答案，回答问题。America is growing older. Fifty years ago, only 4 out of every 100 people in the United States were 65 or older. Today, 10 out of every 100 Americans are over 65. The aging of the population will affect American society in many ways: education, medicine, and business. Quietly, the aging of America has made us a very different societyone in which people have quite a different idea of what kind of behavior is suitable at various ages.A persons age no longer tells you anything about his/her social position, marriage or health. Theres no longer a particular year in which one goes to school or goes to work or gets married or starts a family. The social clock that kept us on time and told us when to go to school, get a job, or stop working isnt as strong as it used to be. It doesnt surprise us to hear of a 29-year-old university president or a 35-year-old grandmother, or a 70-year- old man who has become a father for the first time. Public ideas are changing.Many people say, “I am much younger than my mother or my father was at my age.” No one says “Act your age.” any more. Weve stopped looking with surprise at older people who act in youthful ways.1. It can be learned from the text that the aging of the population in America _. A. has made people feel younger B. has changed peoples social position C. has changed peoples understanding of age D. has slowed down the countrys social development2. The underlined word “one” refers to _. A. a society B. America C. a place D. population3. “Act your age.” Means people should _. A. be active when they are old B. do the right thing at the right age C. show respect to their parents young or old D. take more physical exercises suitable to their age4. If a 25-year-old man becomes general manager of a big firm, the writer of the text would most probably consider it _. A. normal B. wonderfulC. unbelievable D. unreasonable答案：1. C 2. A 3. B 4.