背景： 这篇课文改编自威廉·坎宽巴的真实故事，讲述了一个男孩如何利用废料场的东西建造风车，这与学生对科学、技术和个人成长的兴趣点完美契合。

核心语言重点： 过去进行时和一般过去时。

课文：

One day, a young boy named William was looking for a way to help his family. They were living in a small village, and it was a very difficult time because of a drought. People were struggling to find food and clean water. William was walking near his home when he found a science book in the local library. He was not able to understand most of the words because he did not know much English, but the book was full of pictures. As he was looking at the diagrams of a windmill, he had a big idea. He thought he could build a machine to generate electricity and bring up water. A lot of people were laughing at him, but he was confident. He went to a junkyard and found old bicycle parts and a tractor fan. He used these old things to build his machine. When he finished, his new windmill powered a single lightbulb. Soon, his invention was helping his entire village.

词汇亮点：

drought 干旱

struggling 挣扎

junkyard 废料场

windmill 风车

confident 自信的

语法解析：

本课文有效地结合了过去进行时和一般过去时来描述一个完整的故事。句子“They were living in a small village, and it was a very difficult time”使用了过去进行时来描绘一个持续的背景情境。而“He went to a junkyard and found old bicycle parts...”则使用了简单过去时来描述一系列连续的、已完成的动作 11。这种结合方式帮助学生理解如何用英语讲述一个连贯的过去发生的故事。