Question

there的前面为什么不可以加介词

Answer 1

有时there前面可以加介词in, out, under, from等。例如 (例句均来自英语词典):
It was only a three-mile walk to Kabul from there . 从那里到喀布尔只需走上3英里。
'From there, pulling a line to here,' he said, making invisible drawings in the air. “从那里拉一根绳到这里，”他一边说，一边在空中比划着。
The conditions in there are awful, you know .你要知道，那里的条件很艰苦。
Every aircraft in there has sustained some damage. 那里的每架飞机都受到了一些损坏。
I know there is a mouse under there somewhere. 我知道在那下面的某个地方有一只老鼠。
How can we walk? It's a furnace out there. 我们怎么能走路呢？外面跟火炉似的。