过去完成时课件

1、Perfect Tense现在完成时现在完成时过去完成时课件1.现在完成时态表示过去发生的动作对现在造成的影响或现在完成时态表示过去发生的动作对现在造成的影响或结果结果 Our teacher has left. We have studied English. I have already finished the homework. He has had his lunch. He has become a doctor.have/has+过去分词过去分词过去完成时课件2.某个动作从过去已经开始某个动作从过去已经开始,一直持续到现在一直持续到现在,还还有可能持续到将来有可能持续到将来.动作

2、的持续性要通过一段时动作的持续性要通过一段时间来表示间来表示.(1) recently, in recent years(2) For/in/during/over the last/past 30 years, great changes have taken place in my hometown.(3)Since + 过去的某一时刻过去的某一时刻, since nine yesterday since last week since you came since you got home.We havent seen each other since last year.We have

3、nt seen each other since we graduated from our university.过去完成时课件Perfect TensesNew过去完成时过去完成时课件助动词助动词 + 过去分词过去分词助动词助动词 + 过去分词过去分词 构成？构成？过去完成时课件过去完成时课件过去完成时课件 过去完成时课件过去完成时课件过去完成时课件过去完成时与现在完成时二者用法基本相同，但现在完成时以现在时间为基点，过去完成时则以过去的时间为基点，与现在无关，即过去的过去。过去完成时常用于宾语从句中; Summary过去完成时课件by, before 过去完成时课件Before I me

4、t her,I had heard a lot about her.过去完成时课件 过去完成时课件过去完成时课件 过去完成时课件 过去完成时课件过去完成时课件过去完成时课件过去完成时课件过去完成时课件过去完成时课件1.（2011天津卷）In the last few years thousands of films all over the wordAhave produced Bhave been producedCare producing Dare being produced2.（2011北京卷）Experiments of this kind in both the USand Eu

5、rope well before the Second World WarAhave conducted Bhave been conductedChad conducted Dhad been conductedBD过去完成时课件3（2011四川卷）19What a mistake!YesI his doing it another way, but without successAwas suggesting Bwill suggest Cwould suggest Dhad suggested4.（2011辽宁卷）By the time Jack returned home from E

6、ngland, his son_from collegeAgraduated Bhas graduatedChad been Dhad graduated5.（2011湖南卷）It is the most inspiring lecture that I _since I came to this schoolAattended Bhad attendedCam attending Dhave attendedDDD过去完成时课件6.（2011山东卷）She was surprised to find the fridge empty; the child _ everything! Ahad

7、 been eating Bhad eatenChave eaten Dhave been eating7.（2011福建卷）Last month, the Japanese government expressed their thanks for the aid they_ from ChinaAreceive Bare receiving Chave received Dhad received8. She _her keys in the office so she had to wait until her husband _home.A .has left; comes B .had left; would come C .