1、 The simple past tense1）在确定的过去时间里所发生的动作或存在的状态。时间状语有：yesterday, last week, an hour ago, the other day, in 1980 等。Eg. I saw Tom in the street yesterday. 2）表示在过去一段时间内，经常性或习惯性的动作。Eg. When I was a child, I often played football in the street.3）用过去时表示现在，表示语气委婉礼貌。( 1.)动词want, hope, wonder, think, intend 等。
2、Eg. Did you want anything else? ( 2. )情态动词 could, would，Eg. Could you lend me your bike?4）用在条件句中表示与现在或将来事实不符的虚拟语气。Eg. If I were a bird, I would fly to Beijing. 注意下列句型： It is time sb. did sth. “时间已迟了；早该了”，Eg. It is time you went to bed. would (had) rather sb. did sth.表示“宁愿某人做某事”，Eg. Id rather you cam
3、e tomorrow.The past continuous tense1) 过去进行时表示过去某一时刻或某一段时间正在进行的动作。常与at that time , the whole morning, all day yesterday, from nine to ten last evening等连用。Eg. What was he doing this time yesterday?2.）过去进行时的主要用法是描述一件事发生的背景；一个长动作发生的时候，另一个短动作发生。My brother fell while he was riding his bicycle and hurt hi
4、mself.The past perfect tense1）过去完成时表示过去某一时刻或者某一动作之前完成的动作或状态；句中常用by, before, until, when等词引导的时间状语。By the end of last year we had built five new houses.2）过去完成时的动词还可以表示过去某一时刻之前发生的动作或者状态持续到过去某个时间或者持续下去。Eg. Before he slept, he had worked for 12 hours.（3）在told, said, knew, heard, thought等动词后的宾语从句。 She sai
5、d (that) she had never been to Paris. （4）在过去不同时间发生的两个动作中，发生在先，用过去完成时；发生在后，用一般过去时。 When the police arrived, the thieves had run away.（5）表示意向的动词，如hope, wish, expect, think, intend, mean, suppose等，用过去完成时表示原本，未能 We had hoped that you would come, but you didnt.（6）过去完成时的时间状语before, by, until , when, after
6、, once, as soon as。 By the time he was twelve, Edison had began to make a living by himself.The simple future tense1) shall用于第一人称，常被will 所代替。will 在陈述句中用于各人称，在征求意见常用于第二人称。Eg. Which paragraph shall I read first？ Will you be at home at seven this evening?2) be going to +不定式，表示将来。 a. 主语的意图，即将做某事或打算做某事。W
7、hat are you going to do tomorrow? b. 计划，安排要发生的事。The play is going to be produced next month. c. 有迹象要发生的事Look at the dark clouds; there is going to be a storm.3) be +不定式表将来，按计划或正式安排将发生的事。We are to discuss the report next Saturday.4) be about to +不定式，意为马上做某事。 He is about to leave for Beijing.注意：be abo
8、ut to 不能与tomorrow, next week 等表示明确将来时的时间状语连用。The future continuous tense1.) 表示在将来某一时刻或某段时间正在进行的动作。如： Eg. This time tomorrow I shall be flying to Guangzhou.2) 表示将来被客观情况所决定的动作或者按照安排将要发生的动作。 Eg. Well be having tea after dinner as usual.The future in the past基本形式： wouldshould动词原形（其中 would 用于各种人称， should
9、 常用于第一人称）。They were sure they would win the final victoryHe didnt expect that we should（would）all be there过去将来时的一些其它表达形式： 1wasweregoing to动词原形 He said he was going to try2waswereto动词原形 They said the railway was to be opened to traffic on May Day3waswere about动词原形 We were about to go out when it bega
10、n to rain4过去进行时（一般多为动作概念较强的动词，如 go，come， leave，start， open，begin 等）也可用于表示将来。 I didnt know when they were coming againThe future perfect tense将来完成时用来表示在将来某一时间以前已经完成的动作。与before+将来时间或by+将来时间连用，也可与before或by the time引导的现在时的从句连用。例： By the end of this week, I shall have finished the book. The children will
11、 have gone to sleep by the time we get home.ExerciseI. 用所给动词的适当的过去时或将来时的形式填充1. Lets keep to the point or we _ never_ (reach) any decisions.2. My mind wasnt on what he was saying, so Im afraid I_ (miss) half of it.3. I dont think Jim saw me; he _ just _ (start) into space.4. I _ (ask) you not to move
12、 my dictionarynow I cant find it.5. Sales of CDs have greatly increased since the early 1990s, when people _ (begin) to enjoy the advantages of this new technology.6. -George and Lucy got married last week. Did you go to their wedding? -No, I _ _ _(invite). Did they have a big wedding? 7. Shirley _
13、(write) a book about China last year but I dont know whether she has finished it.8. John and I have been friends for eight years. We first got to know each other at a Christmas party. But we _ _(see) each other a couple of times before that.9. His wife _ _ (hope) to catch the first train but she was
14、 too late.10. I _ _ (catch) in the heavy rain on the way to the cinema.11. I found the sentence _ _ (not read) smoothly.12. What he had said at the meeting _ (prove) true.13. -Did you see Tom at the party? - No. He _ _ (leave) by the time I arrived.14. - How time flies! Its already 10 oclock. - Oh,
15、I _ _ (not realize) it at all.15. - Im sorry that I shouldnt have been so rude to you. - You did_ (lose) your temper but thats OK.II.用所给动词的适当的过去时或将来时的形式确翻译下列各句1. The thief tried to break away from the policeman who _ _(一直抓着) him but failed.2. -What were you doing when Tony phoned you? -I had just fi
16、nished my work and _ _(正准备开始)to take a shower. 3. -You were out when I dropped in at your house. -Oh, I_ _(在等候)for a friend from England at the airport. 4. - Why havent you asked her to come here? - She _(正在做工) an important experiment when I found her and she hasnt finished it. 5. - What were you up
17、 to when she dropped in? - I_ _(刚玩了一会儿)for a while and _ _ _ _(正打算看书) some reading.6.Turn on the television or open a magazine and you _often_(会看到) advertisement showing happy families.7. - What place is it?- Havent you seen that we are back where we _(回到了原地)?8. - Tomorrow is my birthday. Id like you and Jane to come.- Im not sure if she _ _ (将)free.
