對于人可以通用.it is convenient for/to sb.但是在下面句型中介詞只能用for.It is convenient (+for sb.) to do sth.(對某人來說做...方便)
記住兩個復合結(jié)構(gòu)的不定式:for/of sb.to do sth.(僅此兩種)
for本身無意義,其后的名詞或代詞是不定式的邏輯主語,這種結(jié)構(gòu)的不定式可在句子中作主語,賓語,表語,定語和狀語.(eg.)
It is very important for us to learn English well.
I don't think it impossible for him to be absent without leave.
This is for you to decide.
There are a lot of difficulties for them to overcome.
I stepped aside for her to pass.
后者這種復合結(jié)構(gòu)(of sb.)只在句中作狀語,句子的謂語一定是形容詞,而且這形容詞是表示不定式邏輯主語的性質(zhì)或特征.
It is very foolish of you to believehim.=
You are very foolish because you believe him.