Teaching aims：
1、知识目标：
(1) 词汇：rule; suggestion; clear; keep to; lead the way; enjoy oneself; go off; go rock climbing; go down; come on; have experience in doing sth.
(2) 句型:①You mustn’t walk along the edge because you might fall and hurt yourself.
②Can we have something to eat now?
2、能力目标：能听懂户外活动中注意事项的句子；能准确运用must, mustn’t, should, shouldn’t, might, can, have to, can’t等情态动词表达户外活动中的规则和建议。
3. 情感目标：学会户外规则，提出合理建议，体验安全教育。
Teaching keys；
(1)句型 ① You mustn’t walk along the edge because you might fall and hurt yourself.
② Can we have something to eat now?
