关于英语虚拟语气问题

Question

关于对将来的虚拟我一直没懂：不是老师教的时候都说If sb were to do, ......为什么我看有的地方出现了if everyone is to.....之类的，还有关于对于现在的虚拟，是不是说if her were a girl 而不是if he was a girl?

Answer 1

IF sb were to do .....是虚拟 if everyone is to ....不是虚拟
eg :If Tom were to marry hertomorrow ,she would be more than happy( .but in fact ,Tom will marry sb else )
If Tom is to suceed ,he must work harder (这是一个真实的条件句）
be 动词在虚拟语气中一般用were .
不可能有if her were a girl .her 是宾格 要用 he

Answer 2

were to do 表示对将来虚拟
If she were to be a teacher， she would be more independent. 表示“如果她（以后）想做个老师的话，那她现在就要独立点。”（例子不恰当敬请见谅）

is、am、are to do 表示现在计划去做某事（并且不知道动作是否会被实施）
If you are to be stronger，you should do more exercise.如果你（现在）想变得更强壮，那你就要多锻炼。（这也是可以的。）

if sb were sth 如果某人是某物，是虚拟语气，表示假设
因为“某人”不可能会是“某物”，因为始终是人，只能假设一下说成是“某物”。
If I were a bird， I could fly. "如果我（现在）是只鸟的话，我就可以飞了”

不足之处，敬请指出
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Answer 3

希望各位高人动动手指解答一下拉，感谢~~~ 问题补充： 3 Let’s say you 1. 答案正确，楼主理解有误。 if引导的条件状语从句的虚拟语气存在着一种

Answer 4

上英语语法网查“虚拟语气”专题，所需内容应有尽有。