英语中大作文的要求是内容切题、表达清楚、文字连贯、句式多变和语言规范。小作文考察点在信息点的覆盖、语言的准确性、文章组织的连贯性上。
其中小作文占10分，分为求职信、祝贺信、道歉信、询问信、推荐信、感谢信、邀请信、辞职信等等二十多种应用文。每个类别都有相对固定的语言模式，都有固定词语要求。
感谢信是为了答谢对方的邀请、问候、关心、帮助和支持而写的公关礼仪书信。感谢信的写作主要分以下三个部分。首先开头要明确的对对方提供的帮助或赠送的礼品表示谢意。主体部分则需列举对方提供的帮助，说明该帮助所起的作用，或表达对所受礼品的喜爱以及以后如何使用及收藏等。结尾部分需再次表达诚挚的谢意并问候对方。
写作“三步曲”：
表达感谢之情及原因→提及曾受过什么帮助或者说明喜爱礼品的原因→再次表达诚挚的谢意。
注意：
表达感谢时要情真意切，不能过于夸张；结尾处最好表达希望回报对方的愿望，更显真诚。
Directions： You have just celebrated your birthday and your university classmate Jack has sent you an MP3 as the gift for your birthday. Write a letter to express your thanks to him.
Write the letter with no less than 100 words. Do not sign your own name at the end of the letter. Use “Wang Hua” instead. Do not write the address.
Dear Jack，
I am writing to express my sincere thanks for the MP3 you sent to me as my birthday gift last Sunday.
How considerate and wonderful of you to remember my birthday. It‘s one of the most wonderful gifts I’ve ever got and I like it very much. You have a positive genius for selecting the right gift！
The four years I spent with you at university has always been the most pleasant period in my life. I will cherish this memory forever. How nice it would be to see you again.
I am looking forward to getting lots of use out of your thoughtful and practical birthday gift.
Sincerely yours，
Wang Hua
◆常用句式：
1、I am writing to express my thanks for…
我写这封信是为了表达我对……的谢意。
2、I would like to convey in this letter my heartfelt thanks to you for…
在信中我要为……向您表达我诚挚的谢意。
3、Many thanks for all the good things you have done in helping us to…
非常感谢您为帮助我们……所做的一切。
4、I would like to take this opportunity to express my great appreciation for your timely help and assistance.
借此机会感谢您给予我们的及时帮助和支持。
5、Nothing will be able to erase our wonderful memories， and we will nurture/cherish them forever.
没有什么能抹掉我们美好的记忆，我们会永远铭刻在心。
6、Thanks again for you kind help.
对您的帮助再次表示感谢。
7、My true gratitude is beyond any words/description.
感激之情溢于言表。
8、Please accept my thanks.
请接受我的谢意。
10、Your help is very much appreciated by each one of us.