现在完成时与一般过去时区别.ppt

ThePresentTense ;一.表示从过去某一时刻开始并一直延续到现在的动作或事情,但动作或事情现在已经结束。;eg：1. I want to see how much the place changed since I saw it last.;四.现在完成时还常与句型 This is the first time…，It’s the first time …连用。;?现在完成时与一般过去时的区别;第一单元已讲解了现在完成时，在第一册中也已讲解了一般过去时的主要用法。现将这两种时态的用法加以区别，以便使学生更好地掌握，区别两者的不同用法。;一.现在完成时和一般过去时都是说过去的事情，但现在完成时注意的不是事情本身，而是强调事情与现在保持的某种密切联系（如现在的结果，影响,一直延续到现在等）;而一般过去时，则只表示发生在过去的动作和事情与现在没有关系。 ;eg：1. He has bought an English-Chinese dictionary. 他已经买了一本英汉字典。;二．当有一个表示过去某一特定时间的状语时，不用现在完成时，而用一般过去时: ;三．常与一般过去时连用的典型的表示过去时间的状语;四．常与现在完成时连用的表示到现在为止这段时间的词．短语或从句: ;五．可与现在完成时连用，也可与一般过去时连用 的时间状语： ;eg: 1.　I have learnt English for three years. ;?现在完成进行时的主要用法;表示一个持续了一段时间，刚刚结束或仍在继续进行的动作。与现在完成时有所有同的是现在完成进行时强调动作本身或动作的持续性、持久性。;PART B:EXERCISES; 一.Find the choice : 1.When I was at school,I_______to the library every day. A.go B.was going C.have goneD.went 2.The new books_______yet. A.haven’t arrived B.has’t arrived C.didn’t arrive D.don’t arrive 3.____you ever_______to shanghai. A.Haven’t arrived B.Hasn’t arrived C.Didn’t arrived D.Have…been;4.He_______his lunch. A.had B.have had C.has had D.ate 5.For years,doctors________millions of patients lives with the help of microscopes. A.saved B.have saved C.has saved D.were saving;6.I was so happy to see John again last Sunday ,We ______each other for more than two years. A.haven’t seen B.hadn’t seen C.didn’t see D.hasn’t seen 7.We ______three lessons this month. A.have learned B.learned C.has learned D.were having ;8.I______to Paris several times. A.went B.have gone C.have been D.was going 9.Alice _______ in china for ten years. A. has lived B.have lived C.lived D.has live ;10.My uncle ____in this city since 1980. A.lives B.have lived C.has lived D.lived 11.By now old Wang ____in that factory for twenty ye