一般過去時(shí)的特殊用法
a)在虛擬語氣中表示現(xiàn)在或?qū)頃r(shí)間的動(dòng)作或狀態(tài)。
  It's time we went.
  該是我們走的時(shí)候了。
  I wish I were twenty years younger.
  但愿我年輕20歲。
  I would rather you didn't do anything for the time being.
  我寧愿你暫時(shí)先不要采取什么措施。
b)在口語中,一般過去時(shí)往往顯示委婉客氣。
  I wondered if you could give me a hand.
  我想請(qǐng)你幫個(gè)忙。
  Might I come and see you tonight?
  我想今晚來看你,好嗎?