A、 构成形式: ? １）、肯定形式： ? Ｓ＋was /were+表语 Ｓ＋Ved +…. ? ２）、否定形式： ? Ｓ＋was/were not+ 表语 Ｓ＋didn’t+V…. ? wasn’t= was not weren’t= were not didn’t= did not ? ３）、疑问形式： ? Was/ were+
S+表语…? Did +S+V…?
表示过去某一时间发生的动作或存在的状态。 ? 表示过去某一段时间内经常或习惯性发生的动作。 ? 表示过去发生的一连串动作，最后两动词之间用 and连接。 ? 1、表示过去习惯性动作时，可以用used to或 would，但used to侧重于过去与现在的比较，指 现在已不那样了；would注重过去习惯性发生的 动作。 ? 2、长与表示过去时间的状语或状语从句连用。
He was in Beijing some years ago. ? She traveled in Europe last year. ? When I was at collage, I wrote home once a week. ? He wet to town ,bought some books and visited his daughter last Sunday. ? He said he would go for a holiday when he finished his work. ? She used to take her dog out for a walk along the river. ? At night she would haer a long low voice.
表示过去某一时间或某一段时间内正在S+ was /were+ Ving…. ? 过去正在进行的动作。 ? 描述故事发生的背景。 ? come, go, leave等动词的过去进行时表示过去将来。 ? 与 when 连用表示“ 正.....突然....” ? I was doing my homework when he came in. He said that the train was leaving the station.
has /have+ done…. ? 表示过去发生的动作（短暂性动词）对现在 造成的影响和结果，常于already, ever, never, just, yet, still等词连用。 ? 表示过去某一时间开始，一直延续到现在的 动作或状态（常与延续性动词连用）。且常 与for和since等表示一段时间的状语连用。即： for+一段时间或since+过去时间或从句。 ? 在时间或条件状语从句中表示将来。
far, in the past /last…year, week, day, month等连用。 ? 常在It /This /That is+序数词 time that 从句 应用。（表示某人第几次做某事） ? 不与表过去的时间状语连用。 ? S has /have been+地点 ，表示到过或去过 某处（有过经历）。 ? S has /have gone+地点,表示去了某处（即 不在这里、已离开）。
He hasn’t yet turned off the light. ? I have lost my favourite book. ? I have not found it yet. ? He has lived here since last summer. ? We have been here for 3 years. ? He has worked in the factory since last year/he came here. ? China has changed greatly in the past ten years . ? This is the first time that they have come here. ? Have you ever been to America. ? He has gone to Australia.
1.-I’m sorry to keep you waiting. -Oh,not at all. I______ here only a few minutes. A.have been B.had been C.was D.will be 2.-_____ the sports meet might be put off. -Yes,it all depends on the weather. A.I’ve been told B.I’ve told C.I’m told D.I told 3.You don’t need to describe her.I_____ her several times. A.had met B.have met C.met D.meet 4.-Who is Jerry Gooper? -____ ?I saw you shaking hands with him at the meeting. A.Don’t you meet him yet B.Hadn’t you met him yet C.Didn’t you meet him yet D.Haven’t you met him yet
5-Hi Tracy,you look tired. -I am tired.I_____ the living room all day. A.painted B.had painted C.have been painting D.have painted
6.I ______ cooked a meal when you _____ me. A. cooked, were ringing B. was cooking, rang C. was cooking, were ringing D. cooked, rang 7.He said he _____ to draw a plane on the blackboard at that time. A tries B. tried C. was trying D will try 8. While she ______ TV, she ______ a sound outside the room. A. was watching, was hearing B. watched, was hearing C. watched, heard D. was watching, heard 9.They _____ a football game from 7 to 9 last night. A. were watching B. watch C. watched D. are watching 10.What book ____ you ______ when I ____ you at four yesterday ？ A. did, read, was seeing B. did, read, saw C. were, reading, saw D. were, reading, was seeing
11.It was Friday evening. Mr and Mrs. Green _____ ready to fly to England. A. are getting B. get C. were getting D. got
12. Lei Feng _____ always _____ of others when he ______ in the arm A. is, thinking, was B. was, thinking, is C. did, think, is D. was, thinking, was 13.A girl ______ my pen fall off the table when she _____ me. A. saw, passed B. was seeing, passed C was seeing, passed D was seeing, was passing 14. We ____ for tom at ten last Sunday. He often kept us ______. A. were waiting, waiting B. were waiting, wait C. waited, waiting D. waited, wait
15. He ____ his father on the farm the whole afternoon last Saturday. A. helps B. would help C. was helping D. is helping
16.While mother _______ some washing, I _____ a kite for Kate A. did, made B. was doing, made C. was doing, was making D. did, was making
17.“_______ you angry then?” “they ______ too much noise A. are, were making B. were, were making C. are, made D were, made 18.He ____ some cooking at that time, so he _____ me A. did, heard B did, didn’t hear C. was doing, heard D. was doing, didn’t hear 19.His parents wanted to know how he _____ on with his new classmates. A. was getting B. gets C. is getting D will get
20.The price_____, but I doubt whether it will remain so. A.went down B.will go down C.has gone down D.was going down
21. By the time my parents reached home yesterday, I _____ the dinner already. A had cooked B. cooked C. have cooked D. was cooked
22.If their marketing plans succeed, they ____ their sales by 20 perce A. will increase B. have been increasing C. have increased D. would be increasing
23.Although he has lived with us for years,he_____ us much impressi A.hadn’t left B.didn’t leave C.doesn’t leave D.hasn’t left
24.When you are home,give a call to let me know you _____ safely. A.are arriving B.have arrived C.had arrived D.will arrive