助动词should,would的用法总结

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助动词should,would的用法总结

  should和would的用法:

should常译作“应该”,would常译作“愿意;会”.

ld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?

ld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.

ld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”ld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.

1) would无词义,是will的过去形式,与动词原形构成过去将来时,用于第二、第三人称,例如:

He said he would come.  他说他要来。

  比较:

"I will go," he said. 他说:"我要去那儿。"

变成间接引语,就成了:

He said he would come.

原来的will变成would,go变成了come.。

2)should也无词义,只是shall的过去形式,与动词原形构成过去将来时,只用于第一人称,例如:

I telephoned him yesterday to ask what I should do next week.

我昨天给他打电话,问他我下周干什么。

  比较:

"What shall I do next week?" I asked.

"我下周干什么?"我问道。(可以说,shall变成间接引语时,变成了should。)

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