课件Unit4Discoverusefulstructures课件人教版高中英语选择性必修第二册

JourneyAcrossaVastLandDiscoverusefulstructuresUnit4

Grammar—Pastparticiplesvsthe-ingform过去分词和-ing形式Toanalysethedifferenceinusesandmeaningsofpastparticiplesand–ingformsTopracticeusingthepastparticiplesandthe–ingformstocreateadverbialclauses语态及用法主动被动用法动词-ing形式一般式完成式一般式完成式主语宾语表语定语状语补语doinghavingdonebeingdonehavingbeendone√√√√√√过去分词done

√√√√1.Thegirlswere________toseesuchanopencountry.Thefarmscoveredaverylargearea,whichwas_________.amazedamazing1.Fillineachblankwiththecorrectformofaverbfromthebox.2.Findthedifferencebetweeneachpairofsentences,payingattentiontothe-edand–ingforms.3.ThentranslatethesentencesintoChinese.seefrightenheadamaze感到……令人……姑娘们看到如此广袤的国家甚为惊讶。这些农场面积之大令人惊讶。2.Goingintothewildernessalonecanbe___________.Doyoufeel___________whengoingintothewildernessalone?frighteningfrightened3._______fromthetopofthemountain,thescenerywasreallyfascinating.________thesceneryfromthetopofthemountain,Iwasfascinatedbytheautumncolors.SeenSeeing感到……令人……被动主动4._________eastwards,youwillpasstheCanadianRockies.Finally,thecompany--________byitsnewmanager--startedtomakeaprofit.Headingheaded被动主动独自一人进入荒野令人恐惧。你一个人进入荒野感到恐惧吗？从山顶往下望，景色令人着迷。我在山顶看风景，被秋天绚烂的色彩深深吸引。往东，你会经过加拿大落基山脉。最终，在新经理的带领下，公司开始盈利。一、过去分词作表语与动词-ing形式的比较。1、过去分词作表语。【观察思考】

（1）Heseemedquitedelightedatthenews.（2）Thedoorremainedlocked.（3）Hismothergotveryannoyedbecausehecouldn’trecitetheidioms.【探究总结】过去分词可放在连系动词be,get,feel,remain,seem,look,become等之后作表语,表示主语所处的情绪或状态。2、过去分词作表语与动词-ing形式的比较。过去分词与动词-ing形式作表语的意义区别。【观察思考】

(1)Wewereamazedtofindthatnoonewashurt.Bytheway,themachineisamazing.(2)Doyoufeelfrightenedwhenwalkinghomealoneinthedark?Walkinghomealoneinthedarkcanbefrightening.【探究总结】过去分词表示人或物的心情或状态等,也可以理解为心情或状态受到外界影响,有“感到……”之意;动词-ing形式则表示人或物的自身特征,有“令人……”之意。这类词常见的表达有：

interesting

有趣的—interested

感兴趣的

delighting

令人高兴的—delighted感到高兴的

disappointing令人失望的—disappointed感到失望的

encouraging

令人鼓舞的—encouraged感到鼓舞的

pleasing令人愉快的—pleased

感到愉快的

puzzling令人费解的—puzzled感到费解的

satisfying令人满意的—satisfied

感到满意的

surprising令人惊异的—surprised

感到惊异的

worrying

令人担心的—worried

感到担心的

3.过去分词作表语与被动语态的区别:【观察思考】Thebookiswellwritten.这本书写得很好。(系表结构,强调主语所处的状态)Thebookwaswritten

byMoYan.这本书是莫言写的。(被动语态,强调主语所承受的动作)【探究总结】

“be+过去分词”表示状态时，是系表结构，此时的过去分词通常已形容词化;表示动作时,是被动语态,且绝大多数被动结构中的动作执行者由介词by引出。二、过去分词作状语与动词-ing形式的比较。

1.过去分词短语作状语的用法【观察思考】(1)Askedwhathadhappened,heloweredhishead.

=Whenitis

askedwhathadhappened,heloweredhishead.

(2)Scared

ofthetiger,thegirldidn’tdaretosleepalone.

=Because/Asshewasscaredofthetiger,thegirldidn’tdaretosleepalone.

(3)Givenmoretime,wecoulddoitmuchbetter.

=Ifweweregivenmoretime,wecoulddoitmuchbetter.

时间原因条件

(4)Leftathome,Johndidn’tfeelscaredatall.

=Althoughhewasleft

athome,Johndidn’tfeelscaredatall.

(5)Theteacherenteredtheclassroom,followedbyagroupofstudents.=

Theteacherenteredtheclassroom,andhewas

followedbyagroupofstudents.让步方式或伴随【探究总结】

过去分词作状语，可以表示_________、_________、_________、___________、___________和结果，相当于一个状语从句或and连接的并列结构。其逻辑主语为主句的主语，且与主句主语构成被动关系。时间原因条件让步方式或伴随【应用实践】(1)_______intheearly20thcentury,theschoolkeepsoninspiringchildren'sloveofart.A.FoundingB.FoundedC.FoundD.Itwasfounded(2)

When_____forhisviewsabouthisteachingjob,Philipsaidhefounditveryinterestingandrewarding.A.askingB.heaskingC.askedD.heasked(3)______withcare,onetinwilllastforsixweeks.A.UsedB.UsingC.ItisusedD.Itisusing2.过去分词短语作状语时在句中的位置【观察思考】(1)Toldthathismotherwasill,LiLeihurriedhome.

(2)Theoldmanwalkedintotheroom,supportedbyhisson.

【探究总结】过去分词短语作条件、原因及时间状语时,通常放在_______(句首/句末)；作伴随、结果状语时,通常放在________(句首/句末)；作方式状语时,一般放在句末,有时也放在句首;作让步状语时,一般放在句首,有时也放在句末。句首句末3.过去分词作状语与动词-ing形式的比较。【观察思考】

(1)Seenfromthehill,thecitylooksmagnificent.Seeing

thepolice,hemadearunfortheexit.(2)Influenced

byhisexample,theyperformedcountlessgooddeeds.

Hesatatthetable,readingamagazine.【探究总结】过去分词与其逻辑主语之间是被动关系,往往表示完成;动词-ing形式与其辑主语之间是主动关系,一般表示动作正在进行。【注意】1.过去分词作状语,它的逻辑主语必须和句子的主语相一致。e.g.Ifcaught,thepolicewillpunishthethief.[误]

Ifcaught,thethiefwillbepunishedbythepolice.

[正]

小偷如果被抓,会受到警方的惩罚。2.过去分词作状语时,其前面可以带有相应的连词,如when,though,although,asif,if,unless,until,once等,表时间、让步、条件方式等。e.g.If(Iam)invited,Iwillattendtheweddingofmyfriend.

如果受到邀请,我会参加我朋友的婚礼。v.-ed和v.-ing形式作表语时：v.-ed与其逻辑主语之间是被动关系。v.-ing与其逻辑主语之间是主动关系。v.-ed和v.-ing形式作状语时：如果句子的主语和分词是被动关系，时间已经完成用v.-ed形式。如果句子的主语和分词是主动关系，时间正在发生用v.-ing形式。1.…Andwhenhesawthemistsrisingfromtheriverandthesoftclouds____________(surround)themountaintops,hewasreducedtotears.

(2020新课标全国卷III)2.Oranges:Orangetreesaremorethandecoration;theyareasymbolofgoodfortuneandwealth.Theymakegreatgiftsandyouseethemmanytimes_________(decorate)withredenvelopesandmessagesofgoodfortune.

(2020新课标全国卷II)surroundingdecorated3.Allthefootballplayersontheplaygroundcheeredloudly,

________(say)thatIhadatalentforfootball.(2019全国卷I)4.EarthDay,_______(mark)on22April,isanannualeventaimingtoraisepublicawarenessaboutenvironmentalprotection.(2019北京)sayingmarked1.

Oneofthewindowsis_________(broke).2._______(look)outofthewindow,wesawacatwalkingalongthewall.3.Helooked________(puzzle)soIrepeatedthequestion.4.Shewas_________(surprise)tofindthefridgeempty;thechildrenhadeateneverything!5._________(build)thirtyyearsago,thehouselooksverybeautiful.6._______(born)inapoorfamily,hehadtoworkwhenhewasyoung.7.Hewalkedslowlyintheforest,________(follow)byadog.8.Thenationalparkhasalargecollectionofwildlife,________(range)frombutterfliestoelephants.9._______(see)fromthehill,youwillfindthecitylookslikeabiggarden.10.________(see)fromthehill,thecitylookslikeabiggarden.1.

Oneofthewindowsis_________(broke).2._______(look)outofthewindow,wesawacatwalkingalongthewall.3.Helooked________(puzzle)soIrepeatedthequestion.4.Shewas_________(surprise)tofindthefridgeempty;thechildrenhadeateneverything!5._________(build)thirtyyearsago,thehouselooksverybeautiful.brokenLookingpuzzledsurprisedBuilt6._______(born)inapoorfamily,hehadtoworkwhenhewasyoung.7.Hewalkedslowlyintheforest,________(follow)byadog.8.Thenationalparkhasalargecollectionofwildlife,________(range)frombutterfliestoelephants.9._______(see)fromthehill,youwillfindthecitylookslikeabiggarden.10.________(see)fromthehill,thecitylookslikeabiggarden.BornfollowedrangingSeeingSeenCompletethesentenceswiththecorrectformsofthewordsinthebox.ThentranslatethesentencesintoChinese,payingattentiontothedifferentmeaningsofthe-edand–ingforms.boreexcitetiresatisfy1.Webecame________whenthinkingaboutthosebeautifullocationsinFinland.Weexpectedtoexperiencealotof_________thingsthere.excitedexciting想到芬兰那些美丽的地方我们激动起来。我们期待在那里体验很多令人激动的事情。2.Wewenttobedassoonaswearrivedatthehotelbecausewewereso______.Theeight-hourtrainridewasquite________.3.Iwasnot_________withthehotel.ItwasnotascleanasIhadexpected.Butwehada__________mealatthehotel'srestaurant,soIfeltabitbetterlateron.4.Itwasraininghardthenextday,sowejuststayedinthehotelandwatchedTV.Sadly,theTVprogramesthatdaywerereally_______.Aswehadnothingelsetodo,wefeltpretty________.tiredtiringboreexcitetiresatisfysatisfiedsatisfyingboringbored由于疲乏，我们一到宾馆就上床休息了。长达八小时的火车行程令人疲惫不堪。我对这家宾馆不满意，它的卫生状况没有达到我的预期。不过我们在宾馆餐厅吃的那顿饭令人满意，因此后来我感觉好一些了。第二天下起了大雨，因此我们只是待在宾馆看电视。不幸的是，当天的电视节目索然无趣。我们无所事事，感觉百无聊赖。Rewritethesentences.Addinformationasnecessary.Whenpeopleaskedthemanwhatthetripmeanttohim,hesaiditwas“anexperienceofalifetime”.Whenaskedwhatthetripmeanttohim,themansaiditwas“anexperienceofalifetime.”1.ButchartGardenswastransformedfroma