成人高考英語作文題目是：你（Li Yuan）的班級即將組織一次交友（picnin），請你給你的外籍老師（Steve）寫封信。

　　一、作文內容包括：

　　（1）邀請他參加此次活動；

　　（2）介紹活動的具體安排和內容（如時間，地點等）；

　　（3）告知需要做的準備（如著裝，自備午餐等）；

　　（4）希望他參加并盡快給予答復。

　　二、英語作文范文：

　　My name is Li Hua. I have the honor of being your guide. I'd like to give you a brief introduction to our field trip today.

　　First, we'll start at 8:30 from school get to the foot of the mountain at about 9:00.Then we'll the climb the mountain. It'll take about one hour to reach the top where stsome temples. We are free to look around the temples from 10:00 to 12:00. Besides, we'll have lunch there. After a short break, we'll go down the other side of the mountain at 2:00 pm. We plan to reach the riverside at about 3:00 pm. We'll go on to our trip down the river by boat enjoy the scenery. Finally we'll be back at school at about 5:00 pm.

　　That's all for today's arrangement. I wish you alla wonderful day. Thanks.

　　A picnic will be held in this Sunday at 7:00 a.m.in the BeiHai Park.

　　We will go to the park by bus at 6:00 a.m. , sodont be late.We will enjoy some shows provided by our students in the morning. in the afternoon, we will do some games to enjoy us.

　　Thank you for cooperation!

　　LiYuan