2017年高二英语人教版选修8教案：Unit3InventorsandinventionsPeriod3 Word版含解析

Unit3InventorsandinventionsPeriod3Grammar—RevisethePastParticipleastheAttribute，PredicativeandObjectComplement整体设计教学内容分析Thisteachingperiodmainlydealswiththegrammaritem：thepastparticiple.IntheEnglishlanguage，thepastparticipleoftheverbhastwoforms，regularformandirregularform.Inthisperiodwewillmainlytalkaboutthepastparticipleusedastheattribute，predicativeandobjectcomplement.三维目标设计Knowledgeandskills1．Togetthestudentstorevisethedifferentformsandusagesofthepastparticiple.2．Toenablethestudentstousethepastparticipleastheattribute，predicativeandobjectcomplementcorrectlyandproperly.Processandmethods1．Toaskthestudentstopickoutthesentencesincludingthepastparticiple（astheattribute，predicativeandobjectcomplement）fromthereadingpassageandtranslatethemintoChinese.2．Toaskthestudentstodiscovertheusagesofthepastparticiple（astheattribute，predicativeandobjectcomplement）bycomparingalotofexamplesentences.3．ToaskthestudentstodotheexercisesinDiscoveringusefulstructuresonPage24forthemtomasterthepastparticipleform.4．ToaskthestudentstodotheexercisesinUsingStructuresonPage65andsomeotheradditionalexercisesforconsolidation.Emotion，attitudeandvalue1．Togetthestudentstobecomeinterestedingrammarlearning.2．Todevelopthestudents'abilityofcomparingandsummarizing.教学重点、难点1．Togetthestudentstomasterthestructureandusagesofthepastparticipleform.2．Toenablethestudentstolearnhowtousethepastparticipleformcorrectly.教学过程Step1Revision1．Checkthehomeworkexercises.2．Dictatesomenewwordsandexpressions.3．TranslatethefollowingsentencesintoEnglish：（1）但是，看来只有毒杀蛇的药粉。________________________________________________________________________（2）第二天早晨我的手里拿了一个捕鱼的小网。________________________________________________________________________Suggestedanswers：（1）Butthereonlyseemedtobepowdersdesignedtokillsnakes.（2）ThenextmorningIcarriedinmyhandasmallnetusedforcatchingfish.Step2WarmingupAskthestudentstogobacktoPage19andstudythefollowingtwosentencesinPre­readingandtranslatethemintoChinesepayingspecialattentiontotheirverbforms：1．Doyouknowthestageseveryinventormustgothroughbeforetheycanhavetheirinventionapproved?________________________________________________________________________2．Inventingisascientificactivityandsofollowssimilarstagestothoseusedinscientificresearch.________________________________________________________________________Tellthestudentsthatthetwosentencesaboveincludethepastparticipleformanddiscussitwiththem.Thenaskthestudentstothinkoverthequestion“Whatisthepastparticipleform？”Suggestedanswers：1．你了解每个发明家在使发明获得认可之前必须经历的阶段吗？（过去分词作宾补）2．发明是一种科学活动，因此必须遵循与科学研究所经历的相似的阶段。（过去分词短语作后置定语）Step3Grammarlearning1．Askthestudentstostudythefollowingsentencesandtrytosummarizethestructuresandthemeaningsofthepastparticipleforms.（1）ThefirstthingIdidwastoseeiftherewereanyproductsthatmighthelpme，butthereonlyseemedtobepowdersdesigned_to_kill_snakes.（作后置定语）（2）Thecriteriaaresostrictthatitisdifficulttogetnewideasacceptedunlesstheyaretrulynovel.（作宾语补足语）（3）．..soAlexanderbecameinterestedinhelpingdeafpeoplecommunicateandindeafeducation.（作表语）（4）Onedayashewasexperimentingwithoneendofastrawjoinedtoadeafman'seardrumandtheothertoapieceofsmokedglass...（作宾语补足语）2．Askthestudentstostudythefollowingsentencespayingattentiontothedifferencebetweenthepastparticipleformsandothernon­predicateformswhenusedastheattribute.Studytherule（1）ChinaisstilladevelopingcountrywhiletheUnitedStatesisadevelopedone.（2）Therisingsunismorebeautifulthantherisensun.（3）Weallgotfrightenedatthefrighteningcreature.（4）Iwillbuythebeautifulhousebuiltbythelargecompanylastyear.（5）Iwillbuythebeautifulhousebeing_builtbythelargecompanynow.（6）Iwillbuythebeautifulhouseto_be_builtbythelargecompanynextyear.Findtherule（1）不及物动词的现在分词往往表示正在进行，过去分词表示完成；及物动词的现在分词往往表示主动，过去分词表示被动。（2）常见的及物动词interest，surprise，astonish，encourage，tire，move，puzzle，satisfy，inspire等常用其过去分词描述人的心情感受，用其现在分词描述某物或某事。（3）句（4）中的过去分词表示被动和完成；句（5）中的现在分词的被动结构表示正在进行；句（6）中的不定式的被动结构表示将来。3．Askthestudentstostudythefollowingsentencespayingattentiontothedifferencebetweenthestructureof“be＋pastparticipleforms”andthepassivevoice.Studytherule（1）Iwas_pleased_byhiswords.他的话让我很高兴。（被动结构，表示动作）（2）Iam_pleased_withhiswords.我对他的话感到满意。（系表结构，表示状态）（3）Thegroundwas_covered_bythicksnow.地面被厚厚的积雪所覆盖。（被动结构，表示动作）（4）Thegroundis_covered_withthicksnow.地面覆盖着厚厚的积雪。（系表结构，表示状态）（5）Thevillagewas_surrounded_bytheenemy.那个村庄被敌人包围了。（被动结构，表示动作）（6）Thevillageis_surrounded_withtalltrees.那个村庄被大树包围着。（系表结构，表示状态）Findtherule一般而言，please，cover，surround等动词的过去分词后用介词by构成被动结构，表示被动动作；用其他介词如with，at等，则构成系表结构，表状态。4．Askthestudentstostudythefollowingsentencespayingattentiontothedifferencebetweenthepastparticipleandthepresentparticiplewhenusedasthepredictive.Studytherule（1）Howthepooryoungboymanagedtogotothekeyuniversityissurprising.（2）Almosteveryoneissurprisedthatthepooryoungboymanagedtogotothekeyuniversity.（3）Whentheprofessorcamein，heremainedseated.（4）NosoonerhadIstoodupthanhewavedmetoremainsitting.Findtherule（1）常见的及物动词interest，surprise，astonish，encourage，tire，move，puzzle，satisfy，inspire，disappoint，amaze等，常用其过去分词描述人的心情感受，用其现在分词描述某物或某事。（2）remainseated＝remainseatingoneself＝remainsitting。4．Askthestudentstostudythefollowingsentencespayingattentiontothedifferencebetweenthepastparticipleandthepresentparticiplewhenusedastheobjectcomplement.Studytherule（1）Ifoundtheboycoming_into_the_library.（2）Ifoundthethieftied_to_the_tree.（3）Whentheoldmancamebacktohishometown，hefoundthevillagechanging_every_day.（4）Whentheoldmancamebacktohishometown，hefoundthevillagechanged_completely.（5）Withtheboyleading_the_way，wehadnodifficultyinfindingthefactory.（6）Withallthehomeworkdone，theywenttoplayfootballontheplayground.Findtherule1．现在分词作宾语补足语时，宾语往往与宾补是逻辑上的主动关系，如句（1）中的theboy和come，句（5）中的theboy和lead；或者表示正在进行，如句（1）和句（3）。2．过去分词作宾补则宾语往往与宾补构成逻辑上的被动关系，同时表示该动作已经完成，如句（2）中的thethief和tie，如句（4）中的thevillage和change，句（6）中的homework与done。Step4SummingupTrytohelpthestudentsdrawtheconclusion：Thepastparticipleformisoftenusedastheattribute，predicativeandobjectcomplement.Step5GrammarpracticeAskstudentstodothefollowingexercises.1．Puttheverbsintothecorrectform.（1）JohnSnowtoldthestoryaboutthe______（astonish）peopleinBroadStreet.（2）Thereisacar______（park）outsidethehouse.（3）Theexperience______（gain）willbeofgreatvaluetous.（4）Theseseatsare______（reserve）foryou.（5）Don'tdrinkthe______（pollute）water.（6）The______（worry）motherlookedather______（worry）son，looking______（worry）．（7）Stayawayfromthe______（burn）coal.（8）Theyoftensawthenaughtyboy______（beat）byhisstepmother.（9）BecauseofmypoorEnglishI'mafraidIcan'tmakemyself______（understand）．（10）Hejumpedoutofthewayofthe______（approach）train.Suggestedanswers：（1）astonished（2）parked（3）gained（4）reserved（5）polluted（6）worried；worrying；worried（7）burning（8）beaten（9）understood（10）approaching2．DoExercise2inDiscoveringusefulstructuresonPage24.3．DotheexercisesinUsingStructuresonPage64.Firstaskstudentstodotheexercisesindividuallyandthenletthemdiscussandchecktheiranswerswiththeirpartners，andfinallygivethemthecorrectanswersanddealwithanyproblemstheymightmeet.Step6LearningmoreaboutthegrammarAskstudentstogobacktoPages20­21andreadthroughthereadingpassageTheProblemoftheSnakestopickoutthesentenceswiththepastparticipleformandthentranslatethemintoChinese.Step7ClosingdownbyaquizShowstudentsthefollowingonthescreenorgiveouttestpaperstothem.1．Ifelldownandbrokethreeofmyteeth.IwonderhowmanytimesIhavetocomehereandgetmyfalseteeth______.A．fixB．fixingC．fixedD．tofix2．Helookedaroundandcaughtaman______hishandintothepocketofapassenger.A．putB．tobeputtingC．toputD．putting3．Itisbelievedthatifabookis______itwillsurely______thereader.A．interested；interestB．interesting；beinterestedC．interested；beinterestingD．interesting；interest4．Throughouthistory，thelanguage______byapowerfulgroupspreadsacrossacivilization.A．speakingB．spokenC．tospeakD．tobespoken5．—Canthose______atthebackoftheclassroomhearme?—Noproblem.A．seatB．sitC．seatedD．seating6．—Howdoyoudealwiththedisagreementbetweenthecompanyandthecustomers?—Thekey______theproblemistomeetthedemand______bythecustomers.A．tosolving；makingB．tosolving；madeC．tosolve；makingD．tosolve；made7．Theboytriedhisbesttomakehimself______inhis______English.A．understood；breakingB．understand；brokenC．understand；breakingD．understood；broken8．Thetrafficproblem，whichweareexpecting______，shouldhaveattractedthelocalgovernment'sattention.A．seeingtosolveB．toseetosolveC．toseesolvedD．seeingsolvingSuggestedanswers：1­5CDDBC6­8BDCStep8Homework1．FinishofftheWorkbookexercises.2．ReviewthepassageonPage20andpickoutthesentenceswiththepastparticiple.Step9Reflectionafterteaching________________________________________________________________________________________________________________________________________________________________________________________________________________________教学参考过去分词的用法一、过去分词作表语1．及物动词的过去分词作表语，与句子主语是被动关系，表示主语的状态，既表示被动，又表示完成。如：Thecupisbroken.茶杯破了。2．不及物动词的过去分词作表语，表示主语的状态，只表示动作的完成。如：Heisretired.他已退休。3．有些过去分词作表语时，构成的谓语很接近被动结构。如：Thecityis_surroundedonthreesidesbymountains.这座城市三面环山。【注意1】过去分词作表语与被动语态的区别：过去分词作表语，主要是表示主语的状态，而被动语态则表示动作。如：Thecupwas_brokenbymylittlesisteryesterday.茶杯是昨天我小妹打碎的。（被动语态，表示动作）Thelibraryisnowclosed.图书馆关门了。（过去分词作表语，表示主语的状态）【注意2】过去分词表示被动或完成；­ing形式表示主动或进行。有些动词如interest，bore，worry，surprise，frighten等通常用其过去分词形式来修饰人，用­ing形式来修饰物。如：ThebookisinterestingandI'minterestedinit.这本书很有趣，我对它很感兴趣。二、过去分词作定语作定语用的过去分词相当于形容词，其逻辑主语就是它所修饰的名词。及物动词的过去分词作定语，既表被动又表完成；不及物动词的过去分词作定语，只表完成。1．单个的过去分词用作定语，常置于其所修饰的名词之前。如：Wemustadaptourthinkingtothechangedconditions.我们必须使我们的思想适应改变了的情况。2．过去分词短语用作定语时，一般置于其所修饰的名词之后，其意义相当于一个定语从句，但较从句简洁，多用于书面语中。如：Theconcertgiven_by_their_friendswasasuccess.他们朋友举行的音乐会大为成功。3．过去分词短语有时也可用作非限制性定语，前后常有逗号。如：Themeeting，at