The curve(主语）of hillsides(curve的定语）"in the foundations of houses(地点状语）" all(the curve的同位语,也是主语）is connected(被动语态谓语).
It would be easy to live in a climate where there are no freezing temperatures snow,but I would still define the shape of the year by winter as I knew it from my childhood.
其中"to live in a climate where there are no freezing temperatures snow"是原因状语从句,解释为什么说是easy.
"where there are no freezing temperatures snow"是修饰climate的地点状语从句.
"but I would still define the shape of the year by winter as I knew it from my childhood"是"It would be easy to live in a climate where there are no freezing temperatures snow"的转折并列句,"as I knew it from my childhood"是"I would still define the shape of the year by winters "的原因状语从句.