Unit 4 Discover Useful Structures（ppt课件）-2023新人教版（2019）《高中英语》选择性必修第二册.pptx

1、U4语法课件情景导入皇上（句子）皇后（谓语）妃子（非谓语）情景导入后宫佳丽三千皇后只有一个（非谓语）一个简单句只能有一个谓语，其他动词形式只能做非谓语（皇后）（皇上）（妃子）Brainstorming am/is/are donewas/were done didwill dowill be done am/is/are doing was/were doing will be doing am/is/are being done was/were being donewill be being donehave/has been donehave/has donehad donewill h

2、ave donewill have been done had been donehave/has been doingdoingdone找妃子（非谓语）现在过去将来一般态do/does/didwill doam/is/are donewas/were donewill be done进行态am/is/are doingwas/were doingwill be doingam/is/are being donewas/were being donewill be being done完成态have/has donehad donewill have donehave/has been don

3、ehad been donewill have been done完成进行时态have/has been doinghad been doingwill have been doinghave/has been being donehad been being donewill have been being done现在过去将来一般态do/does/didwill doam/is/are donewas/were donewill be done进行态am/is/are doingwas/were doingwill be doingam/is/are being donewas/were

4、being donewill be being done完成态have/has donehad donewill have donehave/has been donehad been donewill have been donehavinghavinghavinghavingtotototototodonedoingto doconclusion非谓语动词的三种基本形式及功能作用V-ing 主动 正在进行V-ed 被动 完成to+V-原 目的 将来（讨好）（受宠）（等上位）讨论两个非谓语动词（妃子）V-ing 主动 正在进行V-ed 被动 完成（讨好）（受宠）Have a tryHave

5、a try1.They spent a couple of days in Vancouver,seeing the sights.2.They visit an island that had wonderful shops selling crafts and antiques.3.They were pleased to see the beautiful mountains looking out over the city.过去分词和动词-ing形式的用法4.Looking at the beautiful scenery,they both agreed that it was t

6、he most awesome journey they had ever taken.5.Seen from the train window,the mountains and forests of Canada looked massive.1.句句1和句和句3中，加颜色词都是形容词化的过去分词，在句中中，加颜色词都是形容词化的过去分词，在句中作作 ，表示主语的性质或所处的状态。表示主语的性质或所处的状态。2.句句2中的过去分词短语在句中中的过去分词短语在句中作作 。作状语用的过去分词作状语用的过去分词(短语短语)Activity 2Activity 2一、过去分词和动词一、过去分词和动

7、词-ing-ing形式作形式作表语表语He seemed delighted at the news.He seemed delighted at the news.When we heard of itWhen we heard of it，we were deeply moved.we were deeply moved.We were surprised at what he said at the meeting.We were surprised at what he said at the meeting.His words were discouragingHis words w

8、ere discouraging，which made many people which made many people discouraged.discouraged.The frightened look on her face suggested that The frightened look on her face suggested that she was frightened by the frightening scene.she was frightened by the frightening scene.总结：过去分词作表语表示人或物的心情或状态等，也可理解为心总结

9、：过去分词作表语表示人或物的心情或状态等，也可理解为心情或状态受到外界影响，有情或状态受到外界影响，有“感到感到”之意；之意；动词动词-ing-ing形式作表语表示人或物的自身特征，有形式作表语表示人或物的自身特征，有“令人令人”之意。之意。系动词系动词1.be;1.be;2.2.感官：感官：feelfeel，seemseem，look;look;3 3：保持：保持/变化变化keep,become,getkeep,become,get，remain.remain.二、过去分词和动词-ing形式作状语Used for a long time，the book looks old.Using th

10、e book，I find it very useful.Seen from the top of the mountain，the scenery was really fascinating.Seeing the scenery from the top of the mountain，I was fascinated by the autumn colours.Following the students，the headteacher entered the classroom.Followed by the students，the headteacher entered the c

11、lassroom.总结：总结：1.1.过去分词和动词过去分词和动词-ing-ing形式作状语时其逻辑主语必须是主句的形式作状语时其逻辑主语必须是主句的主语主语。过去分词过去分词与其逻辑主语之间是与其逻辑主语之间是被动被动关系，往往表示关系，往往表示完成完成；动词动词-ing-ing形式与其逻辑主语之间是形式与其逻辑主语之间是主动主动关系，一般表示动作关系，一般表示动作正在进行正在进行。Though they had been warned of the storm，the farmers were still working in the fields.Though warned of the

12、 storm，the farmers were still working in the fields.When you cross the street，you must be careful.When crossing the street，you must be careful.总结：总结：2.2.过去分词和动词过去分词和动词-ing-ing形式通常形式通常在句中作时间、原因、条件、让在句中作时间、原因、条件、让步、方式和伴随状语等，为表意步、方式和伴随状语等，为表意更明确可以在其前面加上相应的更明确可以在其前面加上相应的连词，如连词，如ifif，unlessunless，althoug

13、halthough等。等。拓展：部分过去分词已经形容词化，作状语时不表示拓展：部分过去分词已经形容词化，作状语时不表示“被动关被动关系系”，其前不用，其前不用beingbeing。这样的过去分词及短语常见的有：。这样的过去分词及短语常见的有：lost in(lost in(陷入某种状态陷入某种状态)、seated(seated(坐着的坐着的)、hidden(hidden(躲着躲着)、lost/absorbed(lost/absorbed(沉溺于沉溺于)、dressed in(dressed in(穿着穿着)、tired of/bored with(tired of/bored with(厌烦了

14、厌烦了)、used/accustomed to(used/accustomed to(习惯于习惯于)Lost/Absorbed in deep thought，she didnt hear the sound.Dressed in a new dress，she looks very beautiful and elegant.三、过去分词和动词三、过去分词和动词-ing-ing形式作形式作定语定语Many used computers will be sold in this market.Many used computers will be sold in this market.Tho

15、se are the problems left over by history.Those are the problems left over by history.He is in the waiting room.He is in the waiting room.The girl standing there is my classmate.The girl standing there is my classmate.总结：总结：单个分词作定语位于被修饰词之前，分词短语位于被修饰词后；单个分词作定语位于被修饰词之前，分词短语位于被修饰词后；过去分词表被动关系、动作完成，动词过去分词

16、表被动关系、动作完成，动词-ing-ing表主动关系、正在进行。表主动关系、正在进行。1._(hear)the news,she burst into tears.2._(write)in a hurry,this article was not so good 3._(see)from the hill,the city is beautiful.4.Tsinghua University,_(found)in 1911,is home to a great number of outstanding figures.5._(complete)the project in time,the

17、staff were working at weekends.6.He hurried to the station only _(find)the train had gone.基础练习Hearingto findSeenfoundedTo completeWritten1._(lose)in thought,he almost ran into a post.2._(absorb)in this book,Lily forgot to eat.3._(face)with the tough situation,he was at a loss.4._(face)the tough situ

18、ation,he was panic.be filled withbe devoted to be located in/atbe addicted tobe exposed tobe born inbe equipped withbe obsorbed inbe faced with.进阶练习-易混点1LostAbsorbedFacedFacing1._(give)that he has worked for a whole day,he deserves to have a rest.2._(consider)the situation,he decided to tell the tru

19、th.3.Frankly _(speak),I do love him.进阶练习-易混点2GivenConsideringspeaking有些分词或不定式短语作状语，其形式的选择不受上下文的影有些分词或不定式短语作状语，其形式的选择不受上下文的影响，称作独立成分。常见的有响，称作独立成分。常见的有：.语法填空阅读下列短文，并用括号内所给词的适当形式填空。6.(absorb)in Scared Step by Step(步步惊心)，the most 7._ (move)serial(连续剧)recently，many people，including some elderly people，wa

20、tched it late into the night.In the serial，a maiden(少女)named Ruoxi went back to the Qing Dynasty,8.(involve)in a fierce fight of Kangxis nine princes(九个皇子)for the throne(皇位).Ruoxi 9._ (move)by he eighth princes warmth and concern and fell in love with him.Absorbedmovinginvolvedwas movedHowever，after

21、 10.(experience)many things，Ruoxi found that her true love was the fourth prince(later was Emperor Yongzheng).11.(punish)for refusing the Emperors order to marry the 13th prince，Ruoxi was sent to do hard work in the palace for ten years,12.(wash)thousands of clothes every day.13._ (realize)Ruoxis lo

22、ve for him，Emperor Yongzheng swore that he would love Ruoxi forever.However，Ruoxi died several years later,14.(make)Yongzheng very sad.experiencingPunishedwashingRealizingmakingIn the end of the serial，Ruoxi came back to the modern times.15.(enter)a museum，she found herself painted in a picture.EnteringThank you for listening!