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.
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