过去完成时现在完成时一般过去式的区别.ppt

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1、Grammar in Unit 10一、过去完成时一、过去完成时二、过去完成时与现二、过去完成时与现 在完成时的比较在完成时的比较三、过去完成时与三、过去完成时与一般过去时的比较一般过去时的比较一、过去完成时一、过去完成时1.意义：表示一个动作在过去某一个意义：表示一个动作在过去某一个动作或动作或过去某一时间之前过去某一时间之前已经发生已经发生或完成。或完成。2.形式：形式：1）肯定式：）肯定式： 2）否定式：）否定式： 3）疑问式：）疑问式：had+ Vedhad not +VedHad +主语主语+Ved给出下列动词过去完成时的肯定给出下列动词过去完成时的肯定式和否定式式和否定式(注意注意

2、Ved的变化规则的变化规则)1.apologize2.promise3.blame4.manage5.forgivehad apologized; had not apologizedhad promised; had not promisedhad managed;had not managedhad blamed; had not blamedhad forgiven; had not forgiven6.satisfy7.camp8.hunt9.attract10.damage11.injure12.rushhad satisfied; had not satisfiedhad camp

3、ed; had not campedhad hunted; had not huntedhad attracted; had not attractedhad damaged; had not damagedhad injured; had not damagedhad rushed; had not rushed过去完成时的例句过去完成时的例句：1.He had told them the story of the broken bike on Monday when he was 20 minutes later for class.星期一他迟到星期一他迟到20分钟就借故说是分钟就借故说是

4、自行车坏了。自行车坏了。2.He had nearly forgotten about the shoe problem.3.We had not finished it when he came back.4.Had you finished the work when he came back?他差不多把鞋的事忘了。他差不多把鞋的事忘了。他回来时我们还没有完成他回来时我们还没有完成。他回来时你们工作完成了吗？他回来时你们工作完成了吗？二、过去完成时与现在完成时的二、过去完成时与现在完成时的比比 较较 过去完成时与现在完成时的时过去完成时与现在完成时的时间出发点不同。过去完成时以间出发点不同

5、。过去完成时以过去某个时间过去某个时间为基点，而现在为基点，而现在完成时以完成时以现在现在作为时间的基点。作为时间的基点。因此，因此，过去完成时是现在完成过去完成时是现在完成时的过去时。时的过去时。Tom is not hungry. He has just had breakfast.Tom was not hungry, He had just had breakfast.例句比较：例句比较：(现在完成时现在完成时)(过去完成时过去完成时)三、过去完成时与一般过去时三、过去完成时与一般过去时的比较的比较一般过去时表示在一般过去时表示在过去某个时过去某个时间间发生的动作或存在的状态；发生的动

6、作或存在的状态；而过去完成时表示在而过去完成时表示在过去某一过去某一时间之前时间之前完成的动作。完成的动作。1.We got to the station at 8:00, but the train had left.我们八点到达车站，但火车已开走我们八点到达车站，但火车已开走了。了。2. We got to the station at 8:00, but the train left at 7:30.我们八点到达车站，但火车七点半我们八点到达车站，但火车七点半就开走了。就开走了。3. When I arrived home, My parents had had dinner.我到家时，

7、我父母已吃过饭了。我到家时，我父母已吃过饭了。4. When I arrived home, we had dinner together.我一到家，我们就一起吃饭。我一到家，我们就一起吃饭。Exercises:1.Choose the correct tense1).The office was empty when the police arrived. The thieves had left/left.2). We had just started lunch when the telephone had rung/rang.had leftrang.3). Andrew was la

8、te for school yesterday. When he got to the classroom, the lessons hadstarted/started.4).They waited until everyone was ready and then they had started / started the meeting.had startedstarted5).I didnt know the way to Johns house because I hadnt been/wasnt there before. 6). “Was Tom there when you

9、arrived?” “Yes, but he had gone/ went home soon afterwards.”hadnt beenwent2、Fill in the blanks with correct tenses.1）.Film maker David Morris_ (be) interested in the cinema since he _ (be) a small child.2）.The students _ (catch) the thief before the policemen came.has beenwashad caught3). Jane loves

10、 travelling, Her work _ (take) her all over the world. She _(be) to Africa, India, Australia, China and South America.4).The house was very quiet when I got home. Everybody _(go) to bed.has takenhas beenhas gone5.They _(buy) a house on the island in 1987 and they _ (live) there since then.6. Andrew

11、_ (do) the test before,so he found it very easy.7.There was a car by the side of the road, It _ (break) down. So we _ (stop) to see if we could help.boughthave livedhad donehad brokenstopped3.Complete the following sentences:1).I didnt go to the film last week, because_ (我已经看过两次了我已经看过两次了)2).How many words _ (已经学了已经学了)by the end of last term?4). She had started to play the piano_ (在她五在她五岁时岁时)I had already seen it twicehad you learnedat the age of five4).She _ (给我们看裙子给我们看裙子)she had just bought.5). He had learned English _ (三年三年) before he came here.for three yearsshowed us the skirt