【正确答案】Dear Colleagues， Jan．6，2010 I have arrived in Shanghai safe and sound． At this moment I find myself lost in thought about the wonderful days that I have spent with you guys．During the cultural exchange programs，you have impressed me enormously with both your hospitality and your profound insights into the relationship between America and China．I will cherish this fond memory forever． As you know，our city will host the World Expo in May this year．I sincerely hope that you will make some time to visit my city．I am sure you will have an equally wonderful time here． Of course，you are welcome to be my guest any other time as well． Many thanks again for the warm receptions I have enjoyed so much． All the best, Zhang Wei

【答案解析】[解析] 该题要求考生写出一封简短的感谢信。首先考生需要考虑书信的格式，要有称谓和签名。日期可以放在Dear Colleagues上面，也可以放在右上角。 读者务必清楚，感谢信有个及时性问题。西方人有个传统，就是得到别人好处(如：收到礼物、得到别人帮助和宴请)后会在24小时之内给行善者发个短信，以示感谢。所以，我们在信的一开头就写上I have arrived in Shanghai safe and sound，目的是暗示读者我一到家就写了这封信。接下来作者表达了感谢，所采取的句型是find oneself lost in thought about，意思是身不由己地陷入沉思，怀念与收信人度过的美好时光、他们的热情好客和深邃的见解，感激之情溢于言表。 本信要完成的第二件事就是发出邀请。2010年上海刚好举办世博会，所以作者以此为契机，发出邀请，希望收信人能挤出时间(make time)来访问上海。为了表达自己的真诚，后面又加上一句“你们其他时间来做客我同样欢迎”。结束之前，作者还再次表达了感谢。