以下词语均为以前学过的较难词语或者是题目说明文字里出现的词语，上课前注意掌握或认识。
1．hopefully有希望地；抱有希望地
2．motivate 激励；激发
3．intangible 无形的
4．relative pronouns 关系代词
5．relative adverbs 关系副词
6．nationality 民族
1．Have you ever taken part in any activities to protect our national heritage?
[参考答案] Yes, I have./No, I haven't.
2．What benefits can you get when you have taken part in the activities to protect our national heritage?
[参考答案] When we have taken part in the activities to protect our national heritage, we can learn about our country's history and culture directly through our experiences.
