Had 开头的疑问Had electronic computers not being invented,many pr

Had 开头的疑问
Had electronic computers not being invented,many problems of space flight would not have been solved now.
为什么Had 开头,在这里这句是什么句型?完整意思?
id1oo9 1年前 已收到1个回答 举报

陈莫言 幼苗

共回答了16个问题采纳率:100% 举报

这里是if引导的条件状语从句,用虚拟语气,但省略了if之后,从句必须用倒装句,完整的句型是
If the electronic computers had not been invented,many problems of space flight would not have been solved now.
假如电脑没有被发明的话,很多太空飞行的问题就不会被解决了.

1年前

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