M2U3 grammar过去完成时(公开课)

Warming up
1. Tom来看我之前我已经做完作业了. I had finished my homework before Tom visited me. 2. 他说他已经住这三年了. He said he had lived here for three years.
过去完成时: had +p.p
①by“直到…为止” / by theБайду номын сангаасend of“直 到…末” / until /before / after/ since+ 过去时间点 ②for+时间段 . (1) By the end of last year, we had learned . (learn) seven hundred English words.
过去完成时的用法
returned Hong Kong ________ (return) to China
in 1997.
returned to China in 1999. Macao ________ had returned to China Hong Kong ____________ before Macao came back to China.
③after/ before/ since/ when / until /
as soon as/ by the time “直到…时
候”+ 时间状语从句 (一般过去时),
主句用过去完成时 .
.
(1)警察到达时，小偷们早跑了。
When the police arrived the thieves (arrive),
2. We can also use the past perfect tense
to refer to an action that had already happened at the time of speaking. 动作。常用于told, said, knew, heard, thought等后的宾语从句中 。 • (1) 她告诉我她从没去过巴黎. • She said (that) she had never been to Paris. 过 去完成时可指过去说话的时刻已经发生的
had run
(run) away.
(2) 自从我离开家乡，我们再也没有见 过面了。 We hadn’t seen (not see) each other since I left (leave) my hometown.
4. 表示意向的动词，如hope, wish, expect, think, intend, mean, suppose, plan等，用过去完成时 had meant/planned/hoped表示过 去未曾实现的愿望、打算、想法等。
直到去年年末,我们已经学了700个英语单词.
had planted (2) They (plant) 600 trees
last Tuesday. before
(3) By / Until ten yesterday evening, she had finished (finish) reading. had taught (4) She said she (teach) English for 13 years.
M2U3 Grammar
the Past Perfect Tense 过去完成时
Revision
翻译下列句子。 1. 我已经做完作业了。 I have finished my homework. 2. 他已经住在这三年了。 He has lived here for three years.
现在完成时: have / has +p.p
把句子变成否定句、一般疑问句、被 动句并就划线部分提问 . I had finished my homework before Tom visited me. I had not finished my homework before Tom visited me.
Had you finished your homework before Tom visited you?
(2) She said that she had ever seen the movie .
(她看过这部电影)
(3)I knew
you had been a teacher before
.
(你以前是一个老师)
3. We often use the past perfect tense
with time expressions such as when, after, before , as soon as , until, since, by , for and already. 过去完成时常与 when, after, before , as soon as , until, since, by , for 和already等连用。
My homework had been finished before Tom visited me.
What had you done before Tom visited you ?
Summary 过去完成时
肯定式：主语 + had + p.p+… 否定式：主语 + had + not + p.p +… 一般疑问句式： Had +主语 + p.p +… ？ 特殊疑问句式：特殊疑问词+ had +主+ p.p+…？ 被动语态：主语 + had +been+ p.p +…
1. We use the simple tense to talk about a past action. When we want to talk about something that happened at an even earlier time in the past, we use the past perfect tense. 一般过去时表示过 去的动作。过去完成时表示过去某一时间或 动作之前已经完成的动作或存在的状态, 即 动作或状态发生在“过去的过去”。