8. Will you join a rock climbing club? Why or why not?

A. 1. Places 2. special walls 3. Outdoors 4. smaller 5. freely 6. lessons 7. leave B. Possible versions: Yes. It's fun and exciting. / No. I think it is dangerous.

Ⅳ. Think and say. Use because, so or as a result to answer the questions according to the conversation in the textbook.
口语表达。根据课文中的对话,用because、so、as a result回答问题。
Why can’t the bird take off from the ground? Why do the students ask Wang Chen for help? ...
...

Possible versions: 1. The bird has long wings but weak legs, so it couldn't take off from the ground. / The bird couldn't take off from the ground, because it has long wings but weak legs. 2. The students knew little about the bird. As a result, they couldn't do anything. / The students knew little about the bird, so they couldn't do anything.