而不是mistake"错误"，difficulty"困难"，burden"负担"。

　　【答案】　B

　　4．Why did the teacher ask the students to talk about their dreams?

　　A．To help them to see their creativity.

　　B．To find out about their sleeping habits.

　　C．To help them to improve their memory.

　　D．To find out about their ways of thinking.

　　【解析】　推理判断题。根据题干信息可知本题考查的是文章后半部分对话的信息。作者鼓励学生讲述他们最有趣的梦，然后鼓励学生说，"白天在课堂上也试一试做梦，好吗？"由此推断，作者让学生讲述他们的梦，是为了帮助学生看到自己的创造性，因此选A项。B项"为了弄清楚他们的睡眠习惯"，C项"为了帮助他们提高记忆力"，D项"为了弄清楚他们的思维方式"，均不是作者的目的。

　　【答案】　A

　　B

　　Dear Mr.Wolfson，

　　The purpose of this letter is to inform you of one of our citizens who I believe should receive some special recognition for dedicated(敬业的)community service.The person I recommend is Elizabeth Samuelson.I believe you know her in your position as volunteer coordinator(协调员)．

　　I have known Elizabeth for more than 20 years as both a friend and a neighbor.During that time I have seen her work tirelessly on scores of community projects and committees.As far as I know，she has never received any kind of recognition from the community for her work.I believe she should be given some sort of special recognition.

Just last year alone，she worked on at least six different community projects including the Park Renewal Project and the Heritage Homes Fund­Raising Banquet.In addition，she is a weekly driver for the Meals­on­Wheels program and she visits patients in the care unit on a regular basis.Whenever a project or committee needs her