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英语单词should,would的用法及区别

xiawuyouke 趣味英语 2022-11-17 11:00:51 30 0

shouldwould既可用作助动词,又可用作情态动词。

作为助动词,它们是shall和will的过去时态,只表示单纯的将来,不附有任何词汇意义。should用于第一人称(但在美国、苏格兰和爱尔兰,人们常用would代替should),would用于第二和第三人称。

作为情态动词,should和would可用于所有的人称,这时候,它们表示的不是“单纯的将来”,而是含有其他的意思

下面按不同的人称,各举数例,以见一斑:should

1. 用于第一人称

We should work hard.(表示责任或义务)

We should help them.(表示道义)

What's happened to the money?How should I know?(表示不满的情感

I should like to see Mr.Clinton.(表示意愿,是用婉转及礼貌的语调)

2. 用于第二人称

You should pay what you owe.(表示责任或道义)

You should not speak so loud.(表示谴责或命令)

We're surprised that you should agree with him.(表示惊奇)

You should visit the exhibition;it is worth seeing.(表示建议或忠告)

3. 用于第三人称

He should be sent to hospital.(表示需要)

They should shoulder the responsibility.(表示责任)

It is strange that he should be absent.(表示惊奇)

Why should they poke their noses into our affairs?(表示愤怒)

We are sorry that things should have taken such a turn!(表示惋惜或遗憾)

He should be at home by now.(表示推测)

He ordered that Mr.Li should leave the room at once.(表示命令)would

1. 用于第一人称

They tried to persuade me,but I would not listen to their reasons.(表示意志)

We would help you as much as we could.(表示允诺或意图)Would that I were young again.(表示愿望)

I would be obeyed.(表示服从命令)

2. 用于第二人称Would you mind closing the window?(表示有礼貌的请求)

If you would lend me the book,I should be much obliged.(表示允诺或意图)

I wish you would go away.(表示愿望)

If the war broke out,you would be summoned to the front.(表示可能性)

3. 用于第三人称

He would never agree to that.(表示意志)

This kind of orange would not peel.(表示特性)

If only it would stop raining.(表示愿望)

They would rather go than stay.(表示选择)

请注意,有些人以为,情态动词can,could;may,might;shall,should;will,would等的现在式表示现在或将来,过去式表示过去时间,其实,这样的机械理解是不对的。情态动词的时态主要是通过所连用的不定式来表示,简单式(即一般式)表示现在或将来,完成式则表示过去。试看下面的例句:

It could not be true.(表示现在)

He cannot have done such a thing.(表示过去)

You should be more careful.(表示现在或将来)

You should have been more careful.(表示过去)

He would like to go tomorrow.(表示将来)

He would have liked to go last night.(表示过去)

You might come at nine in the evening.(表示现在)

People thought you might have seen him.(表示过去)

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