is mary going out for a walk with you -yes,LOOK,(there she is )

问题描述:

is mary going out for a walk with you -yes,LOOK,(there she is )
为什么是陈述句式,there位于句首时不是要倒装的吗?

不用倒装,因为主语是代词she.如果是名词,则用倒装.
请参考:
Here comes the bus. (公车来了.)
Here it comes. (它来了.)