解析：选D　作者在进行工作之前，与小儿子玩耍了一会。

　　16．A.kind B．bitter

　　C．angry D．quick

　　解析：选A　根据"a little good humor"和"a loving thought"可推断出作者在信中与朋友分享友善，故选A项。

　　17．A.Suddenly B．Strangely

　　C．Finally D．Unluckily

　　解析：选C　根据"I ended the day"可推断此处指做了很多事情以后，终于一天就要结束了。

　　18．A.planned B．started

　　C．remembered D．managed

　　解析：选B　根据"walking my dogs, and thanking God for the chance to __19__ for another good day"，再结合第一段可判断此处指作者一天的开始与结束的方式是一样的。

　　19．A.work B．care

　　C．ask D．live

　　解析：选D　作者感谢上帝又让他度过了美好的一天。

　　20．A.devotion B．desire

　　C．key D．response

　　解析：选C　the key to ...表示"......的关键是"。

　　Ⅱ.阅读理解

　　The media provides us with the observations and experiences from which we build up our personal understanding of the world and how it works.Much of our view of reality is based on media messages.The media, to a great extent, gives us our sense of reality.

　　Freedom of the media carries with it certain responsibilities of honesty, fairness, accuracy and accountability.The power of the media to create and destroy human values comes with great responsibility.

　　The media is powerful in the political system, having great influence on politics and on forming social change.The power is to decide who will communicate what to whom.Television can greatly influence the election of a national leader on the basis of his or her image.

Professional journalists do have a code of ethics (道德标准)．Journalists make a judgment about what's safe and appropriate to report, which often involves difficult choices.German