2016-2017学年 译林版 必修5 Unit3 Science and nature Grammar 课件 (15)
2016-2017学年 译林版 必修5   Unit3 Science and nature  Grammar 课件 (15)第2页

Language points Scientists usually do thousands of experiments in order to prove something. (L3 A P49)

vt.证明,证实

1) This letter proves his kindness.

2) This proves that I’m right.

2) He proved himself (to be) right.