结

构 Appositive clause - that 可引导同位语从句

重

点

句

子 1. The first thing I did was to see if there were any products that might help me, but there only seemed to be powders designed to kill snakes. P20

2. Between the outside and the inside walls of the bowl there is some jelly, which freezes when cooled. P20

3. The criteria are so strict that it is difficult to get new ideas accepted unless they are truly novel. P21

4. Nor will you receive a patent until a search has been made to find out that your product really is different from everybody else's. P21

5. He found that by pressing his lips against his mother's forehead, he could make his mother understand what he was saying. P25

6. He designed a machine that would separate different sound waves and allow different conversations to be held at the same time. P25

7. Although he is most often associated with the invention of the telephone, he was indeed a continuing searcher after practical solutions to improve the quality of everybody's life. P26

Ⅲ. 教材分析和教材重组

1. 教材分析

本单元以Inventors and inventions为话题，旨在通过单元教学，使学生了解发明和发现的区别，了解发明创造的过程和获得专利的条件，学习发明家的成功事例；能灵活运用基础句型描述中外古代和现代发明，谈论不同发明的优缺点及其现实意义；根据不同问题及条件设计、改进发明并阐述自己的观点；能写一封有创新的求职申请，阐述自己的特长和优势，能对别人的发明、创造或观点提出意见或建议；并能运用所学知识利用现实生活中有限材料进行发明创造。

1.1 Warming Up 提供了三幅不同发明或发现的图片，让学生运用已有的知识和经验，区分发明和发现的不同含义；并能与同伴合作描述现代发明在现实生活中的作用。

1.2 Pre-reading要求学生将课本所列关于进行科学研究或发明创造所必须经历的几个阶段（步骤或过程）进行正确的排序。了解每一项发明在得到社会承认前都必须经历一个过程。

1.3 Reading是一篇记叙性的文章。作者在文中详细介绍了从发现问题（snake trouble）、分析问题（products that might help）到解决问题（remove the snakes）的全过程，并介绍了专利申请方面的一些知识。

1.4 Comprehending第一个训练题要求学生根据课文内容回答问题；第三个训练题要求学生运用科学步骤设计一项发明解决课本所提供的三个问题，并与同学交流观点。

1.5 Learning about Language分两部分。第一部分要求学生利用填空、改写