英语话题：感谢老师对于毕业论文的指导
说明：假如你是张伟，即将大学毕业，特写信感谢你的老师王教授在毕业前对于毕业论文的指导和帮助。包含以下要点：(1)表明写作目的;(2)简要介绍老师在哪些方面帮助到了你;(3)表达感谢。
注意：1.词数100左右;2.可适当增加细节，以使行文连贯。
参考作文地带整理范文
Dear Professor Wang,
I am Zhang Wei, one of your students in your class. I am writing to extend my sincere gratitude forhelping me modify my thesis.
When I didn’t know how to write my paper, you explained to me how to build the framework of my thesis and what kind of topic should be written. Without your timely assistance, I couldn’t have finished mythesis on time. What’s more, after finishing my thesis, thanks for modifying and correcting someinappropriate aspects.
I would like to show my sincere appreciation for your assistance again. Please let me know if there isanything I can do for you.
Yours sincerely,
Zhang Wei
重点词汇和短语：
gratitude n.感激之情
modify v.修改，改进
timely adj.及时的
assistance n.帮助，援助
on time 及时
inappropriate adj.不恰当的，不合适的
aspect n.方面
亮点句型：
①I am writing to extend /express my sincere gratitude for doing sth.(我写信是为了……而表达感激之情。)
②Without your timely assistance, I couldn’t have finished sth.on time.(如果没有您的及时帮助，我不可能按时完成某事。)
③I would like to show my sincere appreciation for your assistance again.(我想再次对您的帮助表示衷心的感谢。)
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