how后引导定语从句,做方式状语。
how后引导名词性从句，做方式状语。
如：
I dont know how you did it. 宾语从句
How you did it is none of my business. 主语从句
This is how you make it. 表语从句
We have no idea how you did it. 同位语从句 扩展资料
how
adv.怎样;如何（后接形容词或副词）多少，多么，多大
Today we learnt how to use the new software.
今天我们学习了怎样使用这个新软件。
We need to evaluate how well the policy is working.
我们需要对这一政策产生的效果作出评价。
I'll show you how to load the software.
我给你演示一下如何装入这套软件。
Now let me see ─ how old is she now?
让我想一想，她现在多大了呢？
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