act as 與act for的用法

1.actas(臨時(shí))擔(dān)任，充當(dāng)，起……的作用。如：

A trained dog can act as a guide to a blind person. 經(jīng)過訓(xùn)練的狗可以擔(dān)任盲人的向?qū)А?o:p>

表示擔(dān)任獨(dú)一無二的職務(wù)，其前通常不用冠詞。如：

He acted as manager in my absence. 我不在時(shí)他擔(dān)任經(jīng)理。

I don’t understand their language; you’ll have to act as

interpreter. 我不懂他們的語言，你得當(dāng)翻譯了。

2.actfor代理(某人職務(wù))，代為(處理某事)。如：

Please act for me during my absence. 我不在時(shí)請代理我處理事務(wù)。

I acted for our captain while he was in hospital. 我們隊(duì)長住院時(shí)由我代理他。