410　It is（not）good to do

◎ 这个句型意为“做……是（不）好的”，it作形式主语，good为形容词。可用于本句型的形容词还有strange，useful，amusing，harmful等。

It is not good to tell lies. 说谎是不好的。

It is good of you to have helped us. 你帮助了我们真好。

It is not useful to cry over spilt milk. 牛奶洒了，哭也没用。

It is amusing to listen to him talk. 听他讲话真是件乐事。

It is harmful to drink too much wine. 过度饮酒是有害的。

It was quite beyond me to translate the book. 翻译这本书是我力所不及的。