prove是系动词吗

prove既可作行为动词，又可作系动词。prove作＂证明是；结果是；事实说明＂解时，用作连系动词，可用于以下句型：prove+形容词，The handbook proved most useful。这本手册证明很有用。

用作动词(v.)

prove to(v.+prep.)

prove up(v.+adv.)

1.I have to prove myself as a respectable,balanced,person.

我必须证明自己是个正派、稳重的人。

2.If they prove ineffective they should be demoted or asked to retire.

如果事实证明他们已无力胜任，应该将他们降级或让他们退休。

3.There is the strong possibility that such cooperation will prove unworkable.

这种合作很有可能会行不通。

4.They must prove they own?250,000 of realisable assets.

他们必须证明拥有25万英镑的可变现财产。