來(lái)源:中考網(wǎng) 作者:紫涵 2013-02-05 14:02:56
由時(shí)間狀語(yǔ)來(lái)判定
一般說(shuō)來(lái),各種時(shí)態(tài)都有特定的時(shí)間狀語(yǔ)。與過(guò)去完成時(shí)連用的時(shí)間狀語(yǔ)有:
( 1 ) by + 過(guò)去的時(shí)間點(diǎn)。
如: I had finished reading the novel by nine o'clock last night.
。 2 ) by the end of + 過(guò)去的時(shí)間點(diǎn)。
如: We had learned over two thousand English words by the end of last term.
。 3 ) before + 過(guò)去的時(shí)間點(diǎn)。
如: They had planted six hundred trees before last Wednesday.
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