2013年英语四级作文真题如下：
作文：
Suppose you have found a wallet on the street. Write an email to your friend, telling him or her about it. You should write about 100 words on the ANSWER SHEET 2.
Do not sign your own name at the end of the letter. Use "Zhang Wei" instead.
Do not write the address. (10 points)
解题思路：
1. 确定作文类型：这是一篇应用文写作，要求考生写一封电子邮件。
2. 分析作文要求：邮件内容应包括找到钱包的情况、钱包里的物品以及希望朋友帮忙寻找失主。
3. 写作步骤：首先，说明找到钱包的情景；其次，描述钱包里的物品；最后，表达希望朋友帮忙寻找失主的意愿。
作文答案：
Dear Li Ming,
I am writing to you to share with you an interesting experience I had yesterday.
Yesterday, while I was on my way to the library, I found a wallet on the ground. It contained a lot of cash, some credit cards, and a driver's license. I immediately realized that it must belong to someone who is in a hurry and forgot it.
I decided to keep the wallet and try to find the owner. I checked the driver's license and found that the person's name is Zhang Hua. I hope you can help me find Zhang Hua. If you know him, please pass this message to him. Otherwise, I will try to find him through other means.
Thank you for your help.
Sincerely,
Zhang Wei
答案解析：
1. 作文结构完整，包括引言、主体和结尾。
2. 引言部分简洁明了，直接说明了写信的目的。
3. 主体部分详细描述了找到钱包的情况，包括钱包里的物品。
4. 结尾部分表达了希望朋友帮忙寻找失主的意愿，并表示感谢。
5. 词汇和句型运用恰当，符合英语四级作文的要求。
总结：
通过以上解析，考生可以了解到2013年英语四级作文的解题思路和写作技巧。在备考过程中，考生应多练习应用文写作，提高自己的写作能力。同时，注意积累词汇和句型，以便在考试中灵活运用。
