Dear Sir,
尊敬的先生：
I have got the news that you need a tour guide in Zhuhai from the Internet. I want to apply for that position very much.
我从互联网上看到你需要一个珠海导游的消息。我很想申请那个职位。
My name is Liang Yu. I have graduated from Hunan 1st Normal College. My major is English, but I also have the tourist’s certificate.
我的名字叫梁宇，毕业于湖南第一师范学院的英语专业，不过我已经取得了导游证。
I like traveling very much. While traveling, I can find endless pleasure. In my opinion, Zhuhai is the best living place in the world. Now I'm very familiar with Zhuhai, because I have been to Zhuhai several times.
我很喜欢旅行。我可以在旅行中找到无穷的乐趣。在我看来，珠海是世界上最适合生活的地方。如今我对珠海很熟悉，因为我已经去过珠海很多次了。
Last winter, I traveled with my friend in Zhuhai. I was able to show him around the city at that time. He was rather pleased and said that I was a good guide. So we had a happy trip.
去年冬天，我和朋友去珠海旅行。那时候我可以带他到处转。他很高兴，说我是一个很好的导游。所以我们有一个愉快的旅途。
What's more, I can speak English freely and fluently. I’m sure I can be a good guide of foreigners.
而且，我能流利地说英语。我相信我可以做好外国人的导游。
Although I'm not so perfect, I'm still confident, because I can overcome all the difficulties with my willing heart. Please give me a chance, I will do my best.
虽然我不是完美，但我有信心，因为我可以用我的意志克服所有的困难。请给我一个机会，我会尽我最大的努力。
Thank you!
谢谢
Yours,
Liang Yu
梁宇