Unit+3+The+World+of+Science+Using+Language+语法+导学案 高中英语外研版（2019）必修第三册

主题语境科学发展与信息技术创新班级：__________姓名：___________Unit3UsinglanguagePresentperfectpassive导学单Learningobjectives:Toknowtheuseofpresentprefectpassive.Todosomeexercisesusingthepresentperfectpassive.问题导学Activity1Review&Leadin不同时态的被动语态：现在时过去时将来时过去将来一般时进行时完成时下面几种情况一般用被动语态:◆不知道或没有必要说明动作的执行者是谁;◆强调动作的承受者,而不强调动作的执行者;◆动作的执行者很模糊;◆有时为了礼貌的需要,避免说出动作的执行者。Activity2ObservationandDiscoveryTask1:Lookatthesentencesfromthereadingpassageandanswerthequestions.aIguessyouhavebeenaskedaboutthetitleofyourbookbefore.bNewinventionslike3DprintershavebeenusedtomakereplacementheartsandbonepartsWhathashappenedto“you”insentence(a)?_____________________________________________________________________Whohasusednewinventionstomakereplacementheartsandbonepartsinsentence(b)?_____________________________________________________________________cIguesssomeonehasaskedyouaboutthetitleofyourbookbefore.dPeoplehaveusednewinventionslike3Dprinterstomakereplacementheartsandboneparts.Whatisthedifferencebetweenthetwogroupsofsentences?_____________________________________________________________________4Whydoestheauthorchoosetousethepassiveforminsteadoftheactiveforminthereadingpassage?_____________________________________________________________________Task2:Nowlookformoresentenceswiththepresentperfectpassiveinthereadingpassage._______________________________________________________________________________________________________________________________________________________________________________________________________________重难引学Activity3Presentation一、现在完成时的被动语态含义:have/hasbeendone强调一个发生在过去的被动动作。2.表示动作已经完成，对现在造成的影响或结果；3.主语为动作的承受者，与谓语动词是被动关系。二、现在完成时的被动语态结构:肯定式：______________________________________________________________否定式：_____________________________________________________________一般疑问句：_________________________________________________________特殊疑问句：__________________________________________________________三、用法及注意事项:WhatisrulesNo.1inthefollowingphrases?①“Chinaspeed”hasbeengivennewmeaningsinthepastdecade.在过去的十年间，“中国速度”已经被赋予了新的含义。②Thenewhospitalhasbeencompletednow.新医院现已建成。RulesNo.1:表示一个被动动作发生在说话之前，强调对现在造成的影响或结果，常与already,yet,just,ever,never,recently,inthepast/lastfewdays等连用。2.WhatisrulesNo.2inthefollowingsentences?①Theroadhasbeenrepairedformorethanamonth.这条路修了一个多月了。②Ourclassroomhasbeencleaned,youneedn’tcleanitnow.我们的教室已经打扫过了，你现在不必打扫了。RulesNo.2:表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去。常连用的时间状语有：for+段时间，since+时间状语(从句)，thesedays（现今，目前）,sofar,uptonow,inthelast/pastfewyears等。注意事项1:副词的位置often,usually,always,never,hardly,seldom等副词置于have/has和been中间。注意事项2：不及物动词（词组）如happen,takeplace,die,appear没有被动语态，而不及物动词加介词或者副词构成的短语，相当于及物动词，可以用于被动语态。注意介词和副词不能丢掉。四、与一般过去时被动语态的区别:Themachinewasrepairedyesterday．Themachinehasbeenrepaired．语法形式意义关系一般过去时被动语态现在完成时被动语态①Thebridge___________(build)lastyear．这座桥是去年建成的。②Thebridge_______________(build)．这座桥已经建好了。小组研学+班内展学Activity4PracticeTask1:Rewritetheunderlinedpartsusingthepresentperfectpassive.___________________________________________________________________________________________________________________________________________________________________________4.__________________________________________________________5.__________________________________________________________Activity5ProductionTask2:ImagineyouareDrMoore.Lookatthepicturesandtellthepoliceaboutthedamageandlosstoyourlab.Usethepresentperfectpassivewhereappropriate.Inthemorning,whenIwentintomylab,Ifeltextremelysurprised.Whatamessitisnow!Mylab_____________(break)into.Theonlyrobotatthedoor_____________(push)downintopieces.Thedoorofthecupboardwasopen.Somechemicalapparatuses（器械）suchastestglasses（烧杯）andtubes_______________(knock)over.Inaddition,mypapersonthedesk________________(turn)indisorder.习题练学Homework:用被动语态改写下列句子。ActivevoicePassivevoicePeoplehavemadeimportantadvancesinmedicineandenvironmentalsciencethankstoincreasingcomputerpower.Importantadvances1.____________________inmedicineandenvironmentalsciencethankstoincreasingcomputerpower.Someonehastoldmethatyou'reaninventoryourself.I2.____________________thatyou'reaninventoryourself.Theyhaven'tpublishedTom'snovel.Tom'snovel3.____________________HastheInternetchangedyourlife?4.____________________bytheInternet?Howmuchmoneyhavetheyspentontheearthquakerecovery?____________________ontheearthquakeRecovery用所给词的正确形式填空。1.Thesamemistake_______________(make)manytimes.2.Themachinehasalready_________________(repair).3.Hiscup_____________(break)lastnight.4.Newinventionslike3D_______________(use)tomakereplacementheartsandboneparts.

5.Ourclassroom__________________(clean),youneedn’tcleanitnow.3.语篇填空。HaveyoueverheardofUluru(乌鲁鲁)?Actually,it1.______________(call)AyersRock(艾尔斯岩)bysomepeople,too.LocatedinAustralia,Uluruisalargesandstonerockformation,Uluruusedtobeopentothepublic.However,it2._______________(close)since26October2019.In1994，Uluru3._________________(list)UNESCOWorldHeritageSite.Besides,Uluru4.___________________(consider)amajorattractionfordecadesandtouristsfromallovertheworld5.__________________(attract)byit.It'ssaidthattheban(禁令)6._____________________(announce)in2007forthefirsttimeandmostvisitorsobservedit.Australia'sTouristassociationsaidthattheroc