I can't see the words on the blackboard.Why,your eyes need to be examined.为什么不能直接说need to examined,而要加be?这里be的用法谁能帮我解释一下?
问题描述:
I can't see the words on the blackboard.
Why,your eyes need to be examined.
为什么不能直接说need to examined,而要加be?这里be的用法谁能帮我解释一下?
答
这里是被动语态
一定要用Be Done 的结构
如果按Need 的特殊用法也可以说
Why,your eyes need to be examining.
(Need to be done=need doing)
答
be+动词过去分词,被动语态,表示被...
...你的眼睛需要(被)检查一下.