would和should有什么区别？

should和would的用法：
should常译作“应该”,would常译作“愿意；会”.
1.should和would都可用于疑问句,表示征询意见或提建议.但它们比shall和will更委婉.如 Should we open the window?/ Would you mind asking you so many questions?
2.should和would都可用于肯定句或否定句.
(1)should译作“应该”,表示义务或推测.如 We should protect our environment.(义务) / You shouldn’t know him.(推测)
(2)would译作“愿意；会”,表示过去的意愿或意志.如 She said she would become a volunteer./ He promised that he wouldn’t fall behind others.
3.should和would都可作助动词,它们是shall和will的过去式,用于过去将来时,译作“将要”.should用于主语是第一人称,would用于主语是任意人称.如 He said we should / would move to the second floor.

would和should二个不同人称的过去将来时的助动词

零基础英语 would、could、should三个词语的用法

would和should 区别
1.should 作助动词主要用于过去将来时：
I thought I should never seeyou.我以为再也见不到你了。
He hoped that we should support him.
2.在更多的情况下，表示“应该”“应当”用于各种人称，作用接近情态动词。
When should we meet again?我们应当什么时候再见面？
You should be morecareful.更细心点
They shouldn’t leave sosoon.我们不应当走得这么早。
Should后面有时可用完成形式。
You should have come byplane.
They should have told me.他们应该事前告诉我的。
3.用在某些从句或句子中，使语气显得更委婉或表示某种揣测。
I suggest we should haveleave before eight. 八点以前动身。
It’s unfair that this shouldhappen to us.我们发生这样的事是不公平的。
They should be there by now.他们想必已经到达。
4.would主要用于过去将来时（可用于各种人称，可紧缩为’d）
I knew you would’t agree.
They thought we would bewaiting for them.
I thought you wouldn’tarrive so early.
5.表示过去习惯性动作或倾向。
Occationally he would comeand see us.他偶尔会来看我的。
After class we would playbasketball together.
6.可提出请求看法等，使语气显得更委婉。
I’d like a ticket toHoangchow.我想要一张到杭州的票。
Would you come over to havedinner with us?你愿不愿意过来和我们一起吃晚饭？