由where引导定语从句,where在定语从句中作状语.
此句可以分解为Now we are in the position.In such a position,we have to accept that we are wrong.
现在我们处于这样的形势下.在这个形势下,我们必须承认我们错了.
本题要考查的知识点：
先行词可以表模糊化地点或表抽象化地点的名词,在这一类先行词后也可由where引导定语从句,在定语从句中作状语.这类模糊化的或表抽象的地点名词有：point,position,situation,condition,state,atmosphere,case,scene,business,stage等.例如：
3.I have reached a point in my life ___ I am supposed to make decisions of my own.（2009 浙江卷,14）
A.which B.where C.how D.why
此题选B.本题考查定语从句,where在定语从句中作状语,修饰先行词a point.整个句子可分解为：I have reached a point in my life；At the point I am supposed to make decisions of my own.
4.It’s helpful to put children in a situation ___ they can see themselves differently.（2009 福建卷,24）
A.that B.when C.which D.where
此题选D.本题考查定语从句,where在定语从句中作状语,修饰先行词a situation.整个句子可分解为：It’s helpful to put children in a situation; In this situation they can see themselves differently