标题: 请教一道08笔记里的题，关于虚拟语气的 [打印本页] 作者: cyrann 时间: 2016-6-4 17:22 标题: 请教一道08笔记里的题，关于虚拟语气的 239. (GWD-12-Q3)
Were it not for the fusion-powered heat and radiation that rush from its core, instead its own weight would cause a star to collapse.
A. instead its own weight would cause a star to collapse
B. instead a star would have collapsed under its own weight
C. a star would have to be collapsing under its own weight
D. a star would collapse under its own weight
E. its own weight would have caused a star’s collapse
答案我没有问题。但解释里说从句里的it指代的是主句里的主语，这里不太明白。因为我看到很多句子主语是人、是复数等等，从句里也都是it啊。所以这个it到底应该怎么解释呢？谢谢~ 作者: rustraff 时间: 2016-6-6 14:55
it是哪个it?从句里没有it作者: cyrann 时间: 2016-6-6 15:47