10. an environmental expert 一位环境专家

9. act as 扮演 play a role of

ARE WE ENDANGERED?

8. take turns to do sth/ doing sth 轮流做某事 do sth in turn/by turns

7. lead to 导致

6. It follows that… 由此得出…； 可见…

People get sick because of air pollution. It follows that we must do something about it. 人们生病是因为空气污染。可见我们必须采取行动了。

5. die out 灭绝； 消失 　die away ； die off; die of; die from; die down 　　be dying for 渴望；很想

4. in danger 处于危险中 out of danger 脱离危险 in danger of 面临...的危险 endanger vt. 使...濒危；危害

endangered animals 濒危动物 become endangered

3. know of/about 对…了解

2. hunt animals for food 为得到…而捕猎… hunt for 搜寻 hunt animals 狩猎

1. There be… left 有…剩下