练习材料：
Lesson27 A wet night
Late in the afternoon, the boys put up their tent in the middle of a field. As soon as this was done, they cooked a meal over an open fire. They were all hungry and the food smelt good. After a wonderful meal, they told stories and sang songs by the camp fire. But some time later it began to rain. The boys felt tired so they put out the fire and crep tinto their tent. Their sleeping-bags were warm and comfortable, so they all slept soundly. In the middle of the night, two boys woke up and began shouting. The tent was full of water! They all leapt out of their sleeping-bags and hurried outside. It was raining heavily and they found that a stream had formed in the field. The stream wound its way across the field and then flowed right under their tent!
任务配置：L0+L4
知识笔记：camp fire营火，篝火
crept into their tent爬进帐篷
sleep soundly睡得很香
creep爬行，弥漫
put out熄灭
练习感悟：室友在一旁打电话，说话都不带喘气的那种，我都有点愣了，好几次不知道读哪了
