同位语从句、主语从句、定语从句、状语从句、宾语从句、强调句区别

题目

同位语从句、主语从句、定语从句、状语从句、宾语从句、强调句区别
还有就是主语从句 、 强调句 、 定语从句、同位语从句怎么区分呢?
It is one of the most unpleasant discoveries which we all make that we must decline in this way,that if we escape wars,accidents and diseases we shall eventually "die of old age",and that this happens at a rate which differs little from person to person,so that there are heavy odds in favor of our dying between the ages of sixty-five and eighty.
which we all make应该是定语修饰前面的one of the most unpleasant discoveries,后面的that可以是当做定语从句吗?同位语?强调句?

答案

that we must decline in this way是真正的主语,
that if ...是way的同位语