第119页 - 通城学典课时作业本八年级英语译林版南通专版

From nature./From the Earth.

Refined oil.

Two/2.

Because they will run out.

Natural resources(开放性题目，答案不唯一，符合情理即可)

Our class is made up of forty students, and our teacher opens up a whole

new world for all of us.