should和had better的区别?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/24 18:10:05

should和had better的区别?
我明天就用了.请尽快给予我答案.

had better 与 should 后面都是跟动词原形
had better do sth.最好做某事
You had better see a doctor.你最好找个医生看看.
should ：
1.（shall 的过去式）“将”→为求时态一致,而被用于shall成为过去式时.
如：I said,"I shall succeed." → I said that I should succeed.我说我将成功.
2.应该（用于各种人称,表示一种责任或义务.）
You should brush your teeth before you go to bed.
你在睡前应该刷牙.
3.（用should have ＋过去分词的句型）表示“（当时）应该...（但没那样做）”
I should have gone there alone.
我（当时）应该一个人去那里的（但没一个人去）.
4.（用于虚拟语气）（如...）就会...
If a ghost should appear,I would speak to it.
如果鬼出现,我就同它说话.
I should be glad to go,if I could.
如果我能去,我就会高兴地去了.
If I had had the money,I should have bought it.
如果我当时有钱.我就会把它买下了.

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