16 正文： 第一段：写作内容需涵盖两点：自我介绍，写信目的。开门见山，自我介绍：I am Li Ming who will go to study in your university and live together with you in one department.“I am …who…”这个句型来自于建议信的表达。写信目的：Now I am writing this letter to tell you some of my habits and ask you for some suggestions to adapt myself there.
22 细节：1）尽量少用缩写形式。如：don't, can't, won't应写为do not, cannot, will not等。2）用更加正式的否定形式。如not… any应写为no，not… much 写为 little，not many 写做few等。 例如：He did not say any words. → He said no words There are not many chances available. → There are few chances available。3）尽量少用"etc."、"and so on"等表达方式。