信
dear mr./mr.s 文中给出
sir or madam（公共）/my friend (私人)
公共
i am a graduate majoring in computer science
私人
have you been enjoying your life lately
第二句话（目的 ）
i am writing the letter,to be honest,in order to 写作目的
第二段
to begin with,人?,frankly,is so __ that____ with _ in addition, it seems beyond dispute that _is to ** from.(therefore,meanwhile,because)_
every day. last but not least,__** although(when)___
第三段
文中有要求，写一句+期待回信
无要求
期待回信
i wash you good health and lots of happiner
i am looking forward to your early reply/invitation
第三段第一句分类
if you accept this invition,please tell us,so that we can make necessary arrangements
(邀请)
i believe you will take this matter into serious consideration
投诉
i hope you can send me the detail about ____
申请
i am very grateful to ____
感谢
please accept my sincere apology for
道歉
i am so pleased and happy to hear that ____
so delighted to receive your congratulations and thank you very much
恭喜
i would be highly appreciated if you could ____
万能
注意
单复数
冠词
时态
the(column/line/pie/table) chart above illustrates amount of 主题 in a certain __ from xx to xx
静态图表
as is revealed in the gragh,the _ spending on ** is highest among all the 几_ categories ,at approximately ____. In the meantime,the amount spend on _ ,_ and _ accounts for about _,__**and __,respectively.
动态图表
as is revealed in the gragh,the statistics of _**_ has been on a steady(rise/decrase),from 多少* to *多少_ . In the meantime/on the contrary,the number
of __ has increased considerably form _**多少 to 多少 , a rise of about ___
图画
what has been widely accepted is that in the simple cartoon ,_谁 ,插入语（状态） doing and doing . the message conveyed in the picture seems to be that ,____ is __ nowadays and it,s time to pour attention into it.
第二段
from my views,several factors could contribute to this phenomenon. to bengin with , __ makes/helps __ better in _ ,although _/_ not only __ but also _ .In addition，the more……the more……/（被动语态）the glass was broken by the boy in afternoon.Last but not least,_时间** _人
__adj as well as _** ，needless to say,_who are more willing to _ by _
第三段
as has been noted,the evidence that_ manifests that__.Therefore, ___ is a trend __ among 人 . which mean that we __,we_ and we__
when__.It is high time __ that ___,as a college student .