Dan Robinson has been worried all week. LastTuesday he received a letter from the localpolice. In the letter he was asked to call at thestation. Dan wondered why he was wanted by thepolice, but he went to the station yesterday and nowhe is not worried anymore. At the station, hewastold by a smiling policeman that his bicycle hadbeen found. Five days ago, the policeman told him,the bicycle was picked up in a small village fourhundred miles away. It is now being sent to his homeby train. Dan was most surprised when he heard the news. He was amused too, because henever expected the bicycle to be found. It was stolen twenty years ago when Dan was a boy offifteen!
语法归纳：复习被动语态
请参考复习Lesson10语法总结
精讲笔记：
1. Dan Robinson has been worried all the week.
丹·鲁宾逊忐忑不安了整整一个星期。
语言点 has been worried为现在完成时态。对于worry—词的用法，请参考Lesson20课文分析。
2. Last Tuesday he received a letter from the local police.
上星期二他收到了当地警察的一封信。
语言点 receive sth. from sb.意为“从某人那里收到某物”，请参考Lesson4课文第一句。
3. In the letter he was asked to call at the station.
在信中他被要求到警察局去一趟。
语言点 in the letter在信中
in the covering letter在说明函中
to the letter严格按照字句，精确地
by letter以书信形式
letter of application 申请书
letter of appointment 委任书
