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最常用于以when, while及as引导的时间状语从句
延续性动词:指动词可以延续一段时间而不是瞬间结束 。 如:work study drink eat
非延续性动词:指动作极为短暂,瞬间结束。 如:start begin jump knock 1.当从句的谓语动词是持续性动词时,用when, while或as引
表示一个动作在过去某一时间或动作之前已完成 )(坐标轴)
结构: had done(过去分词) 标志语:by the time, 或主句为
一般过去时的宾语从句中
宾语从句:I heard that they had passed the exam.
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第三十二页,共44页。
过去完成时及after, before, as soon as, till/until 等引导
2. Since从句常用一般过去时
It is ten years since I came here.
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第十一页,共44页。
1.The twins ___w__a_s_h_e_d__(wash) the
clothes yesterday. 2.The day before yesterday he ________
plan
第九页,共44页。
wanted
answered
moved died carried cried
stopped planned
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get got take took
go went swim swam
eat ate drink drank
are were have had
do did come came
-- I went to….