弱弱地问：为什么if引导的条件状语从句主句用的是一般过去式?
like father like son：有其父必有其子
agree：
1.During people's whole lives ,father may often be the first teacher who teaches them how to live in the world.
2.Father is a person who always be relied on.Fathers are considered to be an aim to achieve.
3.As both father and son are male ,they are alike.
disagree:
1.As the father isn't respect by others ,the son does not want to be a person just like him.
2.The son does not have a father to imitate.
3.The son doesn't agree with what the father did.The son is a person with private personality.