1.what we need is time 2.what we need are good doctors 这两句话为

1.what we need is time 2.what we need are good doctors 这两句话为什么用what,what做什么成分
为什么不用that.

heavenlord 1年前已收到2个回答举报

共回答了16个问题采纳率：87.5% 举报

在你的句子裏面,what是time和doctors的表语.
1.what we need is time
== Time is what we need.
what == something
2 what we need are good doctors .
Good doctors are what we need.
what== people whom / the people that
3 用what,不用that是因为表语部分没有名词可以指代.

1年前

i8iul4l 幼苗

共回答了229个问题举报

首先两个句子中what 引导的都是主语从句，做need 的宾语。
而that 没有这种用法。

1年前

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