新概念英语第一册第120课经典课件(精心整理)-共30页.ppt

1、It had already happened.Lesson 120事情已经发生了。事情已经发生了。Revision:Lesson119 A true storyKey wordsexpressionsvstory n.故事故事vhappen v.发生发生vthief n.贼贼 venter v.进入进入vdark adj.黑暗的黑暗的vtorch n.手电筒手电筒vvoice n.(说话的说话的)声音声音vparrot n.鹦鹉鹦鹉vexercise book n.练习本练习本Revision:Lesson119 A true storyTextRevision:Lesson119 A tr

2、ue storyTextRevision:Lesson119 A true storyTextRevision:Lesson119 A true storyExercise(Text):Do you like stories?I want to tell you a true story.It happened to a friend of mine a year ago.While my friend,George,was reading in bed,two thieves climbed into his kitchen.After they had entered the house,

3、they went into the dining room.It was very dark,so they turned on a torch.Suddenly,they heard a voice behind them.Whats up?Whats up?someone called.The thieves dropped the torch and ran away as quickly as they could.Revision:Lesson119 A true storyExercise(Text):George heard the noise and came downsta

4、irs quickly.He turned on the light,but he couldnt see anyone.The thieves had already gone.But Georges parrot,Henry,was still there.Whats up,George?he called.Nothing,Henry,George said and smiled.Go back to sleep.Revision:Lesson119 A true storyGrammar:1.First,please find out the sentences of past perf

5、ect tense from the text.After they had entered the house,they went into the dining room.The thieves had already gone.2.Summary:意义：意义：结构结构:1）肯定式：）肯定式：2）否定式：）否定式：3）疑问式：）疑问式：Past perfect tense(过去完成时过去完成时)主语主语+had+动词的过去分词动词的过去分词.主语主语+had not+动词的过去分词动词的过去分词.Had+主语主语+动词的过去分词动词的过去分词?表示一个动作在过去某一个动作或过去某表示一个动

6、作在过去某一个动作或过去某一时间之前已经发生或完成。一时间之前已经发生或完成。（即动作发（即动作发生在生在过去的过去过去的过去）It had already happened.Lesson 120事情已经发生了。事情已经发生了。Now please open your books and turn to Lesson120.Lets look at the pictures.三、三、过去完成时过去完成时与与一般过去时一般过去时的比较的比较二、二、过去完成时过去完成时与与现在完成时现在完成时的比较的比较一、一、过去完成时过去完成时Grammar in use一、过去完成时一、过去完成时1.意义：

7、表示一个动作在过去某一个动作或过去意义：表示一个动作在过去某一个动作或过去某一时间之前已经发生或完成。某一时间之前已经发生或完成。（即动作发生即动作发生在在过去的过去过去的过去）2.结构结构:1）肯定式：）肯定式：2）否定式：）否定式：3）疑问式）疑问式：主语主语+had+动词的过去分词动词的过去分词主语主语+had not+动词的过去分动词的过去分词词Had+主语主语+动词的过去分词动词的过去分词3.3.当两个动作都发生在过去，当两个动作都发生在过去，先发生的用过去完成时，先发生的用过去完成时，后发生的用一般过去时后发生的用一般过去时。when、while、after、before等常与过去

8、完成时连等常与过去完成时连用，以强调事件发生的用，以强调事件发生的先后次序先后次序。过去完成时的例句：过去完成时的例句：1.The thieves had already gone when he came downstairs.2.The train had left when we arrived there.After she had cleaned the blackboard,she closed the window.1.cleaned the blackboard2.closed the window nowhad cleaned the blackboardclosed the

9、 windowShe had cleaned the blackboard before she closed the window.1.ate an apple2.slept nowhad eaten an applesleptShe had eaten an apple before she slept.After she had eaten an apple,she slept.2.played ping pong1.did his homework now played ping ponghad done his homeworkHe had done his homework bef

10、ore he played ping pong.After he had done his homework,he played ping pong.before+一般过去时一般过去时，主句用过去完成时主句用过去完成时 e.g.The film had already begun before I came back.after+过去完成时，过去完成时，主句用一般过去时主句用一般过去时 e.g.He left the room after he had turned off the light.RevisionRevision4.过去完成时常与already(已经),ever（曾经）,just

11、（刚刚）和 never（从未）,by(到),until(直到),since+过去时间点/过去时的句子，for+段时间等连用，以强调事件发生的先后次序。例如：By the end of last year,he had worked in the factory for 10 years.The film had already been on for half an hour when Lucy got to the cinema.Exercise一一.用动词的适当形式填空用动词的适当形式填空:1.We _(paint)the house before we _(move)in.【翻译】_ 2

12、.That rich old man _(make)a will before he _(die).【翻译】_ 3.After they _(study)the map of the country,they_(leave).【翻译】_ 4.When the chairman _(finish)speaking,he _(leave)the hall.【翻译】5.Tom_(have)lunch when I _(get)to their house.【翻译】_ had paintedmovedhad madediedhad studiedlefthad finishedlefthad hadg

13、ot二句型转换二句型转换:1.I had sold the ticket when she came.（改否定句）I had not sold the ticket when she came.2.She had sung a song to us before she danced.（改否定句）She had sung a song to us before she danced.3.By 10:00 a.m,I had been very hungry.（改一般疑问句并做肯定回答）Had you been very hungry by 10:00 a.m.?Yes,I had.4.Lucy

14、 had already completed the project when I arrived.（改一般疑问句并做否定回答）Had Lucy already completed the project when I arrived?No,she hadnt.Exercise二、过去完成时与现在完成时的比较二、过去完成时与现在完成时的比较概念现在完成时现在完成时1.表示过去发生的动作对现在有影响对现在有影响；I have seen the film many times.2.表示过去某一时间开始一直延续到现在延续到现在的动作。He has lived here since 1949.过去完成

15、时过去完成时 表示一个动作在过去某一个动作或过去某一时间之前已经发生或完成。（即动作发生在即动作发生在过去的过去过去的过去）By the end of last term，we had learned 1000 English words.形式现在完成时主语+have/has+动词的过去分词主语为三人称单数，则用“has+过去分词”She has waited here for an hour.主语为非单三，则用“have+过去分词”I have waited here for an hour.过去完成时 主语+had+过去分词 had 可用于各种人称和数 By the end of this

16、 term，we had learned 1000 English words.二、过去完成时与现在完成时的比较二、过去完成时与现在完成时的比较三、过去完成时与一般过去时的比较三、过去完成时与一般过去时的比较 一般过去时表示在一般过去时表示在发生的动作或发生的动作或存在的状态；而过去完成时表示在存在的状态；而过去完成时表示在完成的动作。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，但火车已开走了。我们八点到达车站，但火车已开走了。2.We got to the station at 8:00,but

17、the train left at 7:30.我们八点到达车站，但火车七点半就开走了。我们八点到达车站，但火车七点半就开走了。1._ you_ your homework yet?Yes,I _ it just now.A.Did;do;finished B.Have;done;finished C.Have;done;have finished D.Will;do;finish 2.Where is Li Lei?He _ Shanghai.A.has gone to B.has been to C.went to D.goes to3.Those foreign friends left

18、Guangzhou _.A.since last week B.a week ago C.for a week D.since a week ago4.By the end of last year he_ about 1500 English words.A.learns B.learned C.was learning D.had learned5.Zhao Lan _already _in this school for two years.was;studying .will;study .has;studied .are;studyingExerciseBABDC Open your

19、 books.Lets do the exercises.Lesson 120A1 He dropped the vase after he had taken it into the living room.2 He bought another car after he had sold his old one.3 He swept the floor after he had dusted everything.4 She drank the milk after she had boiled it.5 He turned off the television after he had

20、seen the programme.6 He went to bed after he had done his homework.B1 Yes,I have just seen it.I had never seen it before.2 Yes,I have just read it.I had never read it before.3 Yes,I have just tried it.I had never tried it before.4 Yes,I have just been there.I had never been there before.5 Yes,I have

21、 just written a letter in English.I had never written a letter in English before.6 Yes,I have just watched this programme.I had never watched this programme before.Lesson 120C1 It was too late.He had already painted it.2 It was too late.She had already dusted it.3 It was too late.You had already tel

22、ephoned him.4 It was too late.You had already corrected it.5 It was too late.They had already shut it.6 It was too late.She had already made it.D1 I went to the doctor after I had made an appointment.2 The boss left the office after he had finished work.3 My wife went out after she had finished the housework.4 My teacher gave me my exercise book after he had corrected it.5 My sister went on holiday after she had taken the examination.6 I bought a new car after I had sold my old one.