说明：通过完成一个任务．让学生运用所学内容，既巩固了本课所学的语言目标，又开拓了学生的思维，使学生的思维跳出了课本，培养学生在实际生活中运用本课所学内容，来解决现实生活中的实际问题的能力，真正达到了新课标提出的培养学生综合运用语言的能力。

【巩固训练】

一、根据句意用本单元的词的适当形式填空

1．一Do you know when the computer was i__________?

一In 1976．

2．I don't know if shoes with a________ heels are comfortable to wear．

3．Food cooked in the m__________ oven is not crispy enough．

4．She tasted the soup and added more salt because it wasn't s_______ enough．

5．Did you know potato chips were invented by m__________?

6．Last Sunday．I met a friend whom I hadn't seen for years by a_________．

7．一Where was the bike p_________? 一In Tianjin．

8．The new tea produces a p__________ smell．Would you like to drink some?

9．Remember to pack a c_________ if you want to take pictures there．

【学习反思】本课主要话题是谈论薯条的发明历史。主要练习被动语态的句式用法。通过课前预习，可以增强课堂教学效果。