过去完成时课件.ppt
过去完成时态过去完成时态1）过去完成时态的构成：）过去完成时态的构成： 肯定式：肯定式：had + 动词的过去分词动词的过去分词 否定式：否定式：hadnt + 动词的过去分词动词的过去分词 疑问式：疑问式：Had + 动词的过去分词动词的过去分词 简略回答简略回答: Yes, 主主 + had. No, 主主 + hadnt. 缩写形式：缩写形式：Id, hed, wed, theyd.过去完成时的用法：过去完成时的用法：1 1、表示在过去某一时间或动作之前已经发、表示在过去某一时间或动作之前已经发生或完成的动作。他表示的时间是过去生或完成的动作。他表示的时间是过去的过去的过去, , 常与常与by last year, by the by last year, by the time of yesterday, time of yesterday, 等连用。如：等连用。如： She said she had seen the film 4 times. When Mr Li got to the classroom, all the students had begun reading. By the time they arrived, the bus had left.2 2、表示从过去某一时间开始一直延续到、表示从过去某一时间开始一直延续到过去另一时间的动作或状态。常与过去另一时间的动作或状态。常与for for ( (后跟段时间后跟段时间) )或或since (since (后跟点时间后跟点时间) )等连用等连用, , 如如: : She had worked in this school since it opened 25 years ago.例题解析：举一反三，学的更轻松！例题解析：举一反三，学的更轻松！1. He _ in Shanghai University for four years before he _ Beijing. A. studied, had gone B. had studied, went C. has studied, goes D. had studied, had gone解析：解析：他去北京之前在上大学学习了他去北京之前在上大学学习了4 4年。年。在上海学习的动作发生在去北京之在上海学习的动作发生在去北京之前，因此第一个空应用过去完成时。前，因此第一个空应用过去完成时。此题选此题选B B。2. Mary said it was at least five years since he _ a good drink. A. enjoyed B. was enjoying C. had enjoyed D. would enjoy 解析：解析：It was + It was + 时间段时间段+since +since 引导的从句引导的从句 中用过去完成时。应选中用过去完成时。应选C C。3. Xiao Pei said she _ Hainan for 3 months. A. has been in B. had been in C. had been to D. had gone to 解析：解析：小培说她去了海南三个月。小培说她去了海南三个月。Have been Have been to to 和和have gone tohave gone to都是短暂性的动词短都是短暂性的动词短语。所以适应表示状态的语。所以适应表示状态的have beenin. have beenin. 应选应选B.B.过去完成时常用句型：过去完成时常用句型：一、主语一、主语+ +过去完成时过去完成时+when+when引导的从句引导的从句( (从句从句谓语动词为过去式谓语动词为过去式) )。例如。例如: :Tom was surprised that most of the guests _ when he _ at the party. A. left; had arrived B. left; arrived C. had left; had arrived D. had left; arrived正确答案为正确答案为D D。guestsguests先先 离开离开, Tom, Tom后后 到达到达 。二、主语二、主语+过去完成时过去完成时+by短语。例如短语。例如:We _ four thousand new words by the end of last year.A. had learned B. have learned C. learned D. will have learned 根据根据by短语中的短语中的last year得知得知, 正确正确选项为选项为A。三、主语三、主语+过去完成时过去完成时+by the time引导引导的从句的从句(从句谓语动词为过去式从句谓语动词为过去式)。例如例如:He had already built his own lab by the time he was ten. 到十岁时到十岁时, 他已经建起了自己的实他已经建起了自己的实验室。验室。四、主语四、主语+过去完成时过去完成时+before引导的从引导的从句句(从句谓语动词为过去式从句谓语动词为过去式)。例如。例如:He had studied English for five years before he came here. 来这儿之前来这儿之前, 他已经学过五年梦塔英他已经学过五年梦塔英语了。语了。课外练习：时态综合练习课外练习：时态综合练习用我们所学的时态完成下列句子。用我们所学的时态完成下列句子。1. Betty _ (be) not in. She_ (go) to the library. She _ (leave) two hours ago and she _ (be) back in half an hour.iswentleftwill be2. Flora _ (be) a good teacher. She _ (teach) us geography. Thirty years ago she _ (come) to our school and _ (begin) to teach. She _ (be) a teacher since then. isteachescamebeganhas been9. The sun _ (rise) in the east. 10. The moon _ (rise). Now it _ (hang) high up in the sky.11. Linda _ (get) two postcards from her uncle just now.12. It was already eleven oclock. Kate _ (still, work) on the maths problems.risesrisesis hanginggotwas still working 13. We _ (have) supper. Suddenly the light _ (go) out.14. Mary _ (not, go) over her lessons carefully and she _ (fail) the exam again.15. - _ the train _ (arrive)? - No. It _ (come) in four minutes.were having wenthadnt gone failedHas arrived will come
