Unit 5 Discovering Useful Structures ppt课件 -（2022新）人教版（新教材）高中英语必修第二册.pptx

1、UNIT 5 MUSICDiscovering Useful StructuresCONTENTS421ExercisesP.P.as Predicative3P.P.as AdverbialDiscoverDiscover01Lead-inLead-inDiscussion:说出过去分词在句中充当的成分说出过去分词在句中充当的成分.1.This will result in a smaller number of fish left for us to eat in the future.2.We are meant to be.3.I tried to make myself unders

2、tood.4.I walk these streets famished.5.And dont be shocked when your history book mentions me.Do you still remember your debut?Your performances in Thunderstorm,TheInjusticetoDouEwere remarkable!Report 1Report 21The awesome performance was given last week and was a great relief to all of you.Given l

3、ast week,the awesome performance was a great relief to all of you.2Almost all of the classes of the 10th grade were attracted by the event and had practiced hard.Attracted by the event,almost all of the classes of the 10th grade had practiced hard.3When each performer was totally focused on the perf

4、ormance,he/she contributed a lot to the excellent and brilliant show.Totally focused on the performance,each performer contributed a lot to the excellent and brilliant show.4Because the audience were amused by the performance,they couldnt help cheering when each show finished.Amused by the performan

5、ce,the audience couldnt help cheering when each show finished.wasgivenGivenwere attractedAttractedwas totallyfocusedTotally focusedwere amused Amused Find out the rule of grammarUse only 4 symbols to show the sentence forms:S(主语);PP(过去分词);V(谓语动词);C(连词)Report 1Report 21The awesome performance was giv

6、en last week and was a great relief to all of you.Given last week,the awesome performance was a great relief to all of you.2Almost all of the classes of the 10th grade were attracted by the event and had practiced hard.Attracted by the event,almost all of the classes of the 10th grade had practiced

7、hard.SPPV1CV2SVSV1CV2PPSV3When each performer was totally focused on the performance,he/she contributed a lot to the excellent and brilliant show.Totally focused on the performance,each performer contributed a lot to the excellent and brilliant show.4Because the audience were amused by the performan

8、ce,they couldnt help cheering.Amused by the performance,the audience couldnt help cheering.PPSVPPSVSV1CV2SV1CV2SSRule:1.+;,+;2.+-+;,+。SV1CV2PPSVSV1CV2SPPSV过去分词作表语021.She was moved by the moving speech.2.She seems surprised at the news.3.They looked frightened to hear the frightening sound.4.The door

9、 is closed.过去分词可置于过去分词可置于 后作后作 语，用来表示主语的性质、语，用来表示主语的性质、特征或特征或 。其前的系动词包括。其前的系动词包括be动词、感官动词动词、感官动词get,feel,remain,seem,look,become等多种形式。等多种形式。系动词系动词表表状态状态观察下列句子并总结规律观察下列句子并总结规律过去分词过去分词作表语，强调主语的特点或状态，相当于形容词；作表语，强调主语的特点或状态，相当于形容词；被动语态被动语态中，句子主语是动作的承受者，后面常跟中，句子主语是动作的承受者，后面常跟by。例如：例如：This shop is closed(状

10、态状态)This shop is closed by the local government.(动作动作)过去分词作表语，构成的系表结构与被动语态的区别过去分词作表语，构成的系表结构与被动语态的区别时间时间句首句首时间状语时间状语逗号逗号1 1）表）表感受感受的过去分词常有：的过去分词常有：2 2）表）表状态类状态类的过去分词常有的过去分词常有:disappointed/excited/frightened/surprised/delightedisappointed/excited/frightened/surprised/delighted/encouraged/interested/p

11、uzzled/worried/pleasedd/encouraged/interested/puzzled/worried/pleaseddressed(dressed(打扮好的打扮好的)，lostlost（迷路的），（迷路的），drunkdrunk（喝醉的）（喝醉的）seatedseated（就坐的），（就坐的），absorbedabsorbed（全神贯注的），（全神贯注的），devoteddevoted（忠诚的）（忠诚的）过过去分词与现在分词作表语的区别：去分词与现在分词作表语的区别：We are _(interest)in the film.The film is _(interest)

12、to us.Michelle sounded _(excite)to hear the news.The news sounded _(excite).过去分词作表语一般形容人；过去分词作表语一般形容人；现在分词作表语一般形容物现在分词作表语一般形容物interestedinterestingexcitedexciting时间时间句首句首时间状语时间状语逗号逗号 I heard an I heard an excitedexcited conversation.conversation.puzzledpuzzled look look 迷惑的表情迷惑的表情 excited excited vo

13、ice voice 兴奋的声音兴奋的声音satisfiedsatisfied gesture gesture 满意的手势满意的手势 pleased pleased smile smile 满意的笑容满意的笑容1.The plants that they found there were (astonish)2.I was (astonish)to learn that his long lost child had been found.3.She had a (worry)look on her face because she failed the exam.4.He looked (in

14、terest)in the idea I put forward.5.The mother went to visit Einstein.(puzzle)Exercisesastonishingastonishedworriedinterestedpuzzled6.There is nothing_(leave)to do but wait for my parents to come here.7.All his fans are _(inspire)by Li Jians humor in Voice of China.8.Be brave.You look like a _ bird(f

15、righten)9.The fierce lion looks _ (frighten).Keep away from its cage or it will attack you.leftinspiredfrightenedfrightening过去分词作状语031.过去分词作时间状语过去分词作时间状语过去分词作时间状语时，相当于时间状语从句。可在过去分词前过去分词作时间状语时，相当于时间状语从句。可在过去分词前加上连词加上连词“when,while,until”等，使其时间意义更明确。等，使其时间意义更明确。Looked at from a distance,the painting se

16、ems much more beautifulWhen it is looked at from a distance,the painting seems much more beautiful当从远处看时，这幅画似乎更美了。当从远处看时，这幅画似乎更美了。When water is heated,water turns into steam.=heated,water turns into steam.When过去分词作时间状语过去分词作时间状语2.过去分词作原因状语过去分词作原因状语过去分词作原因状语时，可转换为由过去分词作原因状语时，可转换为由since,because或或as引导引导

17、的原因状语从句，这类状语多放在句子的前半部分。的原因状语从句，这类状语多放在句子的前半部分。Worried about the speech competition,I was unsettled these daysBecause I was worried about the speech competition,I was unsettled these days由于担心考试，我这几天感到不安。由于担心考试，我这几天感到不安。Because he was exhausted,he fell fast asleep.=exhausted,he fell fast asleep.Becaus

18、e Exhausted因为太疲惫了，他很快就睡着了。因为太疲惫了，他很快就睡着了。过去分词作原因状语过去分词作原因状语1.in deep thought,he didnt hear the sound.因为沉浸在思考之中因为沉浸在思考之中,所以他没听到那个声音。所以他没听到那个声音。2.in the mountain for a week,the two students were finally saved by the local police.在山中迷失一个月之后在山中迷失一个月之后,这两个学生最终被当地的警察救助。这两个学生最终被当地的警察救助。过去分词短语作原因状语过去分词短语作原因

19、状语过去分词短语作时间状语过去分词短语作时间状语有些过去分词短语作状语时，仅表完成的状态，不表被动有些过去分词短语作状语时，仅表完成的状态，不表被动意义：意义：lost(lost(迷路迷路);seated();seated(坐坐);absorbed in();absorbed in(全神贯注于全神贯注于););dressed in(dressed in(穿着穿着);tired of();tired of(厌烦厌烦)等。等。ConclusionConclusion3.过去分词作条件状语过去分词作条件状语过去分词作条件状语时，可转换为过去分词作条件状语时，可转换为if,once或或unless等引

20、导的等引导的条件状语从句。条件状语从句。Given a few minutes,Ill finish the taskIf I am given a few minutes,Ill finish the task再给我几分钟的时间，我就会完成这个再给我几分钟的时间，我就会完成这个任务任务。If I am given a time machine,I will pay a visit to the future.=given a time machine,I will pay a visit to the future.If过去分词作条件状语过去分词作条件状语4.过去分词作让步状语过去分词作让步

21、状语过去分词作让步状语时，相当于一个以过去分词作让步状语时，相当于一个以though/although引引导的让步状语从句。导的让步状语从句。Invited by him,I wont take part in the partyThough I was invited by him,I wont take part in the party即使被他邀请，我也不会参加聚会。即使被他邀请，我也不会参加聚会。Although he was laughed at by others,he still smiles at life.=laughed at by others,he still smil

22、es at life.Although过去分词作让步状语过去分词作让步状语5.过去分词作方式过去分词作方式/伴随状语伴随状语过去分词作方式或伴随状语时，通常不能转换为状语从过去分词作方式或伴随状语时，通常不能转换为状语从句，但可用并列分句代替。句，但可用并列分句代替。The patient got off the bed,supported by the nurseThe patient got off the bed,and he was supported by the nurse.那个病人在护士的搀扶下下了床。那个病人在护士的搀扶下下了床。The girl left,and she wa

23、s followed by a little dog.=The girl left,followed by a little dog.过去分词作方式或伴随状语过去分词作方式或伴随状语动词过去分词短语可在句中充当动词过去分词短语可在句中充当_,_,_，_,_和_等状语。等状语。时间时间原因原因让步让步条件条件伴随伴随方式方式2._2._from the hill,thefrom the hill,the citycity lookslookslikelike a a bigbig garden.garden.如果如果主句的主语主句的主语和和分词分词是是主动关系主动关系,用用_，主句的主语主句的主

24、语和和分词分词是是被动关系被动关系，用，用_。重难点辨析（一）：重难点辨析（一）：分词短语的逻辑主语必须跟分词短语的逻辑主语必须跟_的主语保持一致。的主语保持一致。1._ from the hill,you will find 1._ from the hill,you will find thethe citycity lookslooks likelike a a bigbig garden.garden.SeenSeenSeeingSeeing主句主句_finished,children went out.作业一做完，孩子们就出去了。作业一做完，孩子们就出去了。HomeworkHomew

25、ork独立主格结构独立主格结构主格代词主格代词/名词名词+过去分词过去分词=When _,children went out.the homework was finished_ 为为逻辑主语逻辑主语，_为为逻辑谓语逻辑谓语。主格代词或名词主格代词或名词过去分词过去分词 若分词主语与句中主语不一致若分词主语与句中主语不一致,则可以用其他方法来修正则可以用其他方法来修正:给分词添加自己的主语给分词添加自己的主语,构成独立主格结构。构成独立主格结构。用用withwith复复合结构。合结构。改为相应的状语从句来表达。改为相应的状语从句来表达。_finished,children went out._

26、finished,children went out.=When _,children=When _,children went out.went out.=With homework _,children went out.=With homework _,children went out.HomeworkHomeworkthe homework was finishedthe homework was finishedfinishedfinished含过去分词状语的句子的特点：作状语的过去分词短语常相当于状语从句。过去分词的逻辑主语和句子主语一致。过去分词与其逻辑主语之间是被动关系。过去

27、分词短语作状语所表达的状语类别，要根据整个句子的意思来推断。分词作状语答题记忆口诀：分词作状语，主语是问题。逗号前后两动作，共用一主语。主语找出后，再来判关系。主动-ing,被动用-ed.Having done 表先后，千万要牢记。Exercises041._(raise)in the poorest area of Glasgow,he had a long,hard road to becoming a football star.2.Children,when _(accompany)by their parents,are allowed to enter the stadium.3.

28、_(found)in the early 20th century,the school keeps on inspiring childrens love of art.4._(translate)into English,the sentence was found to have an entirely different word order.ExercisesRaisedaccompaniedTranslatedFounded5.(If)_(give)another chance,I will do a better job.6._(look)at from that point o

29、f view,his decision is easier to under-stand7._(view)from the road the wall liked too high to climb.8._(describe)as an enormous round plate,it spins slowly in space to imitate the pull of the earths gravity.ExercisesViewedGivenLookedDescribedHomeworkHomework1.1.Match the sentence halves and rewrite each sentence beginning with a past participle(Page54,Activity 3)2.Complete the passage with the words in brackets in their correct forms.(Page54,Activity 4)THE END