It is silly of sb to do sth 中的of为什么不能用成for,
It is good for sb 中为什么用for不用of
若形容词是描述不定式行为者的性格、品质的,如kind,good,nice,right,wrong,clever,careless,polite,foolish等,用of sb.。
It’s very kind of you to help me. 你能帮我,真好。
It’s clever of you to work out the maths problem.
你真聪明,解出了这道数学题。
若形容词仅仅是描述事物,不是对不定式行为者的品格进行评价,用for sb.,这类形容词有difficult,easy,hard,important,dangerous,(im)possible等。
It’s very dangerous for children to cross the busy street.
对孩子们来说,穿过繁忙的街道很危险。
It’s difficult for us to finish the work. 对我们来说,完成这项工作很困难。
注 意 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
of sb. 的句型通常都可转换为不定式作状语的句子,但for sb. 句型不可以。
It’s very nice of you to offer me a seat.
= You are nice to offer me a seat. 十分感谢你给我让座。
It is careless of him to lose so many things.
= He is careless to lose so many things. 他丢了这么多东西,真是太粗心了。
It’s very important for you to practise your oral English in daily life.
在日常生活中练习你的英语口语非常重要的。
这句话不能说成:It is very important of you to practise…
.
It’s very kind of you to help me. 你能帮我,真好。
It’s clever of you to work out the maths problem.
你真聪明,解出了这道数学题。
若形容词仅仅是描述事物,不是对不定式行为者的品格进行评价,用for sb.,这类形容词有difficult,easy,hard,important,dangerous,(im)possible等。
It’s very dangerous for children to cross the busy street.
对孩子们来说,穿过繁忙的街道很危险。
It’s difficult for us to finish the work. 对我们来说,完成这项工作很困难。
注 意 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
of sb. 的句型通常都可转换为不定式作状语的句子,但for sb. 句型不可以。
It’s very nice of you to offer me a seat.
= You are nice to offer me a seat. 十分感谢你给我让座。
It is careless of him to lose so many things.
= He is careless to lose so many things. 他丢了这么多东西,真是太粗心了。
It’s very important for you to practise your oral English in daily life.
在日常生活中练习你的英语口语非常重要的。
这句话不能说成:It is very important of you to practise…
.
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第1个回答 2007-09-18
It is good for sb是个固定搭配