一、重点词汇：
I.根据首字母及句意提示写出下列单词。
1. Before we can enjoy ourselves , here are some rules and s_____________（建议）
2. You should think about you personal s____________（ 安全）
3.We should h__________（挂）the food in the tree tonight .
4.Your shouldn’t l__________（留下）anything which bears might think is food .
5. He has had an a___________（事故），he has b___________（摔坏） his leg .
6. He has got a w___________（伤口 ）in his leg and he may have a fever .
7.Someone who is born today can e_________（期待）to live 25 years longer 。
8.Many doctors believe that happiness is important for our g_________（总体的） health .
9. Sometimes it is not easy to be a teenager because of the p________（压力） of school。
10. In the past , people’s jobs r__________（需要） more p__________ e_________（体力）。