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?Itisoneofthemostunpleasantdiscoverieswhichweallmakethat

　　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?

　　Itisoneofthemostunpleasantdiscoverieswhichweallmakethatwemustdeclineinthisway,thatifweescapewars,accidentsanddiseasesweshalleventually"dieofoldage",andthatthishappensataratewhichdifferslittlefrompersontoperson,sothatthereareheavyoddsinfavorofourdyingbetweentheagesofsixty-fiveandeighty.

　　whichweallmake应该是定语修饰前面的oneofthemostunpleasantdiscoveries,后面的that可以是当做定语从句吗?同位语?强调句?