帮忙写个英语作文。赏高分!!!

假如你叫李华，北京欢乐谷主题公园请你为他们的主题区"失落的玛雅"写一个英语指南，内容包括以下几个要点: 1.背景知识:玛雅是一个古老的民族，他们曾经在中美州建立过灿烂的文明(civilization)。到公元六至八世纪，玛雅文明突然消失，原因至今未明。 2.主题活动:在"失落的玛雅"主题区，你将有机会与伟大的探险家诺曼博士(Dr Norman)一起，重新发现玛雅遗迹，探索玛雅文明失落的秘密。

一：Dear Sir:I am writing to you in the hope that l may get the position advertised in your school newspaper as a school broadcaster.I am very glad to know the school radio station that was built not long ago at school.As a student at jinghua Middle School,I think Ican do my best to do the job well.Firstly,I am excellent in character and learning,so I am sure everybody can hear me clearly.Then my mandarin is very fluent and my spoken English sounds very perfect.Besides,my rich knowledge is very beneficial to spread advanced culture.Above all,I will throw myself into the job enthusiastically.I hope my excellent conditions can make me qualified to the job.Your sincerelyLi Hua 二： My happy picnicIt was in the morning of sunday.it was such a lovely day I with my classmates decided to go for a picnic.We set off by bikes with two large food baskets.After we reached the place,we parked our bikes beside the grove.We were so happy that we could not help beginning to play and sing many songs.We did not play until it was the lunchtime.We sat under a big tree and took out much food such as bread,fruits,and sausages.There was no doubt that we had a big lunch.When we had to go,we packed the rubbish up and throw it into the rubbish bin.It was a perfect day!