题目

he is there为什么不是he is at there
he is there如果是对的,那“我在家”可以说是“i am home"吗?好像又不可以,前面要加at

提问时间：2020-09-28

答案

here 和 there之前不加介词at的
直接说I'm here,she is there.
口语里,别人问你在哪里,随口答道I'm home是没问题的.但是受义务教育说I'm at home更舒服些.
我看到雅虎answer有人提问,我把这段发给你,转转引用的：
问题：I am at home ,i am in office ..are these sentences correct?
答案：yes..they are correct,i will make explanation why.
I am AT home.
The preposition indicates that the noun that follows them is treated as a point in relation to which another object is positioned.
some examples of using AT in:
*location
Tom is waiting for his sister at the bank.
Sue spent the whole afternoon at the fair.
*destination
We arrived at the house.
The waiter was at our table immediately.
*direction
The policeman leaped at the assailant.
The dog jumped at my face and really scared me.