soido有关用法不解youseemtohaveknownallabouttheaccdentsoihave为什么这里要用IHAVE呢.不应该是实义动词seem,所以用do,有没有别的特殊例子,比如youlookedtired,用SOI该怎么用?

Question

so i do 有关用法不解
you seem to have known all about the accdent
so i have
为什么这里要用I HAVE呢.不应该是实义动词seem,所以用do,有没有别的特殊例子,比如you looked tired ,用SO I 该怎么用?

Answer 1

在对话中,回答句中一般要用so + 代替上句主语的代词+ 上句中的助动词.但是,上句中若有判断词、语气词,要看情况而定,也就是去掉判断词、语气词与否要看情况而定：
-You seem to have known all about the accdent.
-So I have.我已经了解了整个事故情况 (若用so I do,do 代替seem,意思就成了：我好像了解了整个事故情况.显然意思不通)
-It must have rained last night.
-So it must have(肯定下雨了)/So it did 就是下雨了.
-They ought to help each other.
-So they ought to他们是应该互相帮助/So they do他们就是互相帮助.