初三英语题疑惑 大家看下~

问题描述:

初三英语题疑惑 大家看下~
they found impossible to finish so much work in such a short time.
为什么不能用it is
they found(that) it is impossible to finish so much work in such a short time.
不能看做省略that 的从句吗?

they found impossible to finish so much work in such a short time.为什么不能用it is they found(that) it is impossible to finish so much work in such a short time.不能看做省略that 的从句吗?以上是考察...好乱~我想知道 可以用it is吗?还有用it和用 it is的区别IT IS 主系结构,后面需要接表语IT 是代词而已;代指就是说可以用it is?(不管时态)it 是代词,可以代替很多内容 (1)It 可以代替动词不定式做形式主语 (2)It 可以代替主语从句作形式主语 (3)IT 可以代替 不定式,句子作形式宾语, (4)IT 还可以代替原文提到过的人和事物 IT IS 后面需要接表语成分, 有时态的和语态的区别