英语非谓语中,done和have been done有什么区别啊?

两者最基本的区别就在done不强调时间先后，而having been done则强调时间先后
having been done首先是表被动，另外它指的是此动作发生在谓语动词的动作之前。如：Having been used for many years, the bike needs repairing.(使用的动作发生在修理之前，所以用到了having been done的形式）
而done只是表示被动和完成，如：Used as a means of trafficin China,the bike is very useful (此句中自行车与使用之间存在被动关系，所以直接使用了done的形式）又如：Told several times, he couldn't understand what I meant.(此句中的他与告诉之间的关系是被动，而且是已经被告诉过了，动作已经完成，所以直接使用done的形式了。）

done 是主动做 Easier said than done

have been done是事情被完成 Most of all, it could not have been done without teamwork.

done--主动 如：I　have finished my homework.
have been done--被动 如：My homework have been finished.

非谓语动词作定语修饰前面的名词，done过去分词，表示完成或被动
它可以恢复成一个定语成句，that
+主语+have
been
done
如果是having
been
done，那是现在分词被动形式，修饰前面的名词，表示进行和被动