作业帮非谓语动词 什么时候用过去分词done 什么时候用having been done?
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/11/07 20:35:58
非谓语动词 什么时候用过去分词done 什么时候用having been done?
比如 the computer centre,(opened)last year is very popular among the students in this school
明明有last year这个时间提示了 为什么不用 having been done呢
以后再遇到这种题怎么做呢?
比如 the computer centre,(opened)last year is very popular among the students in this school
明明有last year这个时间提示了 为什么不用 having been done呢
以后再遇到这种题怎么做呢?
要想表示被动,要用done的相关形式：
已经被-----done/having been done
正在被-----being done
将来被-----to be done
但是having been done有一个语法特点：不能作定语,只能作状语,表示分词动作发生在谓语动作之前.
the computer centre,(opened)last year,is very popular 这句中opened是定语,不能换成having been done;比较：
Having been criticized many times,the boy made the same mistake again.
Not having received a reply,I decided to write again.
已经被-----done/having been done
正在被-----being done
将来被-----to be done
但是having been done有一个语法特点：不能作定语,只能作状语,表示分词动作发生在谓语动作之前.
the computer centre,(opened)last year,is very popular 这句中opened是定语,不能换成having been done;比较：
Having been criticized many times,the boy made the same mistake again.
Not having received a reply,I decided to write again.
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