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【含义解释】:
"Would"和"should"都是情态动词,用于表达建议、请求、推测或想象等情况。其中"would"表示愿意或习惯性的行为,而"should"表示应该或理应做的事情。
【语法、使用方法不同之处的对比】:
"Would"用于表示过去的习惯、反复发生的行为,或是在虚拟语气中表示假设的情况,如:I would always eat breakfast before school.(我过去总是在上学前吃早餐。)If I had more time, I would go on vacation.(如果我有更多时间,我会去度假。)
"Should"则表示责任、义务或建议等意思,常与“ought to”或“had better”连用,如:You should study hard for the exam.(你应该好好准备考试。)I think you ought to apologize to her.(我认为你应该向她道歉。)
【具体用法举例】:
Would:
When I was younger, I would always play outside with my friends after school.(当我还年轻的时候,放学后我总是和朋友们一起玩耍。)
If it rained, my dad would always drive me to school instead of making me walk.(如果下雨了,我爸爸总是开车送我上学而不是让我走路。)
If I won the lottery, I would buy a big house and a fancy car.(如果我中了彩票,我会买一栋大房子和一辆豪华轿车。)
Should:
You should stop smoking if you want to stay healthy.(如果你想保持健康,你应该戒烟。)
If you're feeling sick, you should go see a doctor.(如果你感觉不舒服,你应该去看医生。)
You should wear a seatbelt when you're driving.(开车时应该系上安全带。)
【表格】:
【全面的决策参考】:
如果你要表达过去的习惯或反复发生的行为,应该使用"would"。如果要表达责任、义务或建议等意思,应该使用"should"
在表达虚拟语气中的假设时,"would"可用于表示将来的假设,"should"则不适用于这种情况。例如:If I won the lottery, I would buy a big house.(如果我中了彩票,我会买一栋大房子。)
"Should"经常与"ought to"混用,但实际上两者含义相同。"Should"更常见一些,"ought to"更正式一些。例如:You should call your parents more often.(你应该经常给你的父母打电话。)You ought to apologize for what you said.(你应该为你所说的话道歉。)
"Should"和"would"都有否定和疑问形式。在否定形式中,"would not"缩写为"wouldn't","should not"缩写为"shouldn't"。在疑问形式中,"would"需要放在主语前,"should"可以用助动词+主语+动词原形或基本形式。例如:Would you like to go to the movies tonight?(今晚去看电影吗?)Should we tell her the truth?(我们应该告诉她实情吗?)
总之,选择使用"would"或"should"取决于句子的语境和所表达的意思。在使用时,应该根据具体情况来选择使用哪个情态动词,并注意其语法形式和用法。
should是shall的.过去式,用作第一人称;表示委婉的语气;would作为will的过去式,可用于第二、三人称,也可以用于第一人称;表示过去将来时,过去完成时,过去进行时;
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。
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?
Should后面有时可用完成形式。
You should have come byplane.
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。
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.
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。
6.可提出请求看法等,使语气显得更委婉。
Would you come over to havedinner with us?你愿不愿意过来和我们一起吃晚饭?