题目内容：
教学设计根据提供的信息和语素材设计教学方案,用英文作答设计任务:根据下列学生信息和语言素材,设计20分钟英语读写课的教学方案。教案没有固定格式，但须包含下列要点:
(1) teaching objectives
(2) teaching contents
(3) key and difficult points
(4) major steps and time allocation
(5) activities and justifications
教学时间: 20分钟
学生概况:某城镇普通高中-年级学生,班级人数40人;多数学生的英语水平达到了课标的相应要求，课堂参与积极性一般。
语言素材:
In the summer when | want to relax, | go down to the river at the edge of our village.There is a deep pond there and all the village children meet in hot weather to swim The tall trees along the river bank give us shade when we just want to sit and talk and
the sandy river bank is perfect for the little children to play on. On the opposite river bank are some large rocks to which we older children swim when we want to sunbathe. The river flows slowly and water is crysta I clear. The air smells of trees and damp earth and my worries begin to disappear as soon asI arrive Sometimes on warm evenings we take food and drink down to the river. It’s very pleasant to sit with friends and watch the night fall.I can' t think of anywhere I' d rather be on a summer evening.
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