Dear sir or madam,
I am ______. I feel bad to trouble you but I am afraid that I have to make a complaint about_______.(埋怨的工作、货色) so I write you this letter to show my concern.
(单赞扬)段二1：The reasons for my dissatisfaction are the following aspects. In the first place, ______（埋怨的第一个方面）In addition, ______（埋怨的第二个方面. Under these circumstances, I think it will be better to arouse your attention.
（提议）段二2：To improve this situation, it is advisable for you to take the following measures. On the one hand,________.(提议一) on the other hand，_________.(提议二)
末段：If you can take my complaint/suggestions into serious consideration, I will show my great appreciation. And I hope to get your reply at your early convenience.
Dear Sir or Madam,
求职段一：I am________, I am writing this letter to apply for the position that you have advertised in ______（报纸名称）because I am so interested in this position and I am confident of qualifying for it.
请求段一：I am________, I am writing this letter to apply for _______请求事项___________because I am so interested in it and I am confident of qualifying for it.
For one thing, not only do I have the qualifications, but I also have the right personality for this post. The virtues will make me the right person for this job. For another thing, I am good at team work which can facilitate the achievement of the goal. What’s more, I am really interested in it, so I will cherish the chance and inspire all enthusiasm to do it well. Therefore,
If you need to know more about me, please feel free to contact me at any time at 123456. If you can take my application into serious consideration, I will show my great appreciation. And I hope to get your reply and an interview at your early convenience.
It affords me much pleasure to recommend ______（要保举的人）to you.②During his/her graduate years he/she was my ______ . ③As his/her ______ ,I found him/her ______（介绍与这人的关连）.④His/Her performance in the school years was outstanding. ⑤First, he/she had been and showed great talents in ______ . ⑥In addition, he/she has a very pleasant personality. ⑦He has developed a strong sense of ______, and working with him is always. ⑧I can state that he/she has all the qualities of being ______.（介绍这人的威力）
Therefore, I here recommend him/her to you with all my heart. Should you favor him/her with a position in your company(工作)/Should you accept him/her in your university？（入学）I am sure that his/her future conduct/academic work will prove worthy of your confidence. I look forward to hearing from you at the earliest possible moment.
①I am truly sorry that ______（报歉的缘由）.
②The reason is that ______（介绍缘由）. ③Once again, I am sorry for any inconvenience caused. ④Hope you can accept my appologies and understand my situation.
Dear ______ ,
①I am writing to extend my sincere gratitude for ______（感谢的缘由）. ②If it had not been for your assistance in ______（对方给以的详细帮忙）, I fear that I would have been ______（不对方帮忙时的后果）.③Every one agrees that it was you who ______（给出细节）.
④Again, I would like to express my warm thanks to you! Please accept my gratitude.
Dear sir or madam,
I am ______. I am writing the letter to see if it is possible for you to provide me with some information regarding ____.③First of all, what are ______（第一个问题）? ④Secondly, when will ______（第二个问题）? ⑤Thirdly, is ______（第三个问题）?
⑥I would also like to inquire ______（将最重要的问题单独成段）. ⑦Could you be so kind as to send me some relevant booklets on the above mentioned aspects?
⑧Thank you for you kindness, and your prompt attention to this letter will be highly appreciated.
Dear ______ ,
①I have learned with delight that you ______（祝贺事由）. ②I would like to extend to you my utmost congratulations on ______. ③You must be ______. ④And I feel very happy for you.⑤ ______（所取得的成绩）is quite exciting news! ⑥I know this is surely owing to ______（被祝贺人过去的努力）.⑦It is a reward you richly deserve for your ______（被祝贺人的利益）.
⑧Kindly let me know when you ______（咨询对方什么时候有空）.⑨I hope ______（表白自己的希望）. ⑩My best wishes for your further success.
转折关连：but, however, yet, on the contrary, contrary to, in contrast to, whereas, rather than, instead of, conversely
关连：although, even, despite, nevertheless, as, still, much as, anyhow, in any case, whatever
总分关连：for example(分), such as(分), including(分), in sum(总), in general(总), on the whole(总)
因果关连：because, due to, in that, owing to, since, now that, lead to, contribute to, result in, in view of, so, hence, therefore, consequently
递进关连：still, indeed, furthermore, besides, in addition, what is more
条件关连：if, in the event of, so long as, unless, only if ,in case, provided that,
并列关连：and, as well as, likewise, not…only…but also…
时光关连：when, while, as, after, before, since, until, as soon as, once, simultaneously, at the same time, whenever
倾向关连：so that, in order that, lest, for fear that,