To nature is to help ourselves or we will be punished.A. protectB. preventC. provideD.

问题补充：

To nature is to help ourselves , or we will be punished.

A. protect

B. prevent

C. provide

D. pollute

答案：

(答案→)A. protect

B. prevent

C. provide

D. pollute

解析：本题的含义是保护大自然就是帮助我们自己。Protect表示保护的意思，故本题选A。