Unit 1 Grammar and usage 教案-高中英语牛津译林版（2020）必修第三册

Book3Unit1NatureinthebalanceGrammarandusageEllipsisTeachingobjectives:Bytheendofthissection,studentswillbeableto:1.learnaboutthefunctionsofellipsis;2.summarizethegeneralrulesofellipsis;3.applytherulesofellipsisinthenewcontext.Teachingimportantanddifficultpoints:1.Tounderstandthefunctionsandstructuresofellipsis;2.Toapplytherulesofellipsisinthenewcontext.Step1LeadinStudentsenjoyavideofromthemovieTheKing’sSpeechthattheyhavewatchedbefore,andpayattentiontotheactors’lines.Q:1.Whatareleftoutinthedialogue?(此对话省略了哪些内容呢？)Q:2.WhatisEllipsis?Ellipsismeansleavingoutawordorwordsfromasentence.Wecanuseellipsiswhenthemeaningcanstillbeunderstoodwithoutusingawordorcertainwords.Inotherwords,ellipsisisusedwhenyoudonotwanttorepeatsomewordsorphraseswhosemeaningisobvious.Usingellipsisisanefficientwaytomakesentencesconcise（简洁）.为了使语言简洁或避免重复，省略句中的一个或几个句子成分，这种语法现象称为省略。运用省略手法，可以避免重复，使句子简练。Step2ExploringtherulesTodaywewillreadanotherdialogueaboutadocumentaryonenvironmentalprotectionmadebyJackandHenry.Studentsreadthedialogueinpairsandanswerthefollowingquestions：1.Whatisthedocumentaryabout?2.HowdidJackfeelwhenwatchingthedocumentary?3.Whatdotheleadingexpertssuggestdoingtosolvetheenvironmentalproblems?Studentswritedownthewordsthathavebeenleftoutinthebracketsbelow.No,Ididn’t(watchthedocumentaryaboutenvironmentalprotectiononTVyesterday).Youcanwatchitonlineifyouwantto().Ifeltworriedwhen()watchingthedocumentary.Somecallfortheapplicationofmoderntechnology,andothers()achangeoflifestyle.()Gotanyideas?()Soundsgreat!StudentsworkouttherulesinthetableonP6.Step3WorkingouttherulesWhencanweuseellipsis?What’sthefunctionofellipsis?常见的省略现象有以下几种情况：在非正式场合，如果语境清晰，常省略主语或主语和动词。如： (Areyou)Ready?Exercise:还原句子中省略的部分：(1).Begyourpardon.(2).Soundslikeagoodidea.(3).Anythingwrong?2.在简短对话中，答句常保留主语和助动词，省略其后主要动词以及上句出现过的其他内容。如： —Didyougotothemuseumyesterday? —No,Ididn’t(gotothemuseumyesterday).3.在并列句结构中，常省略与前面相同的主语、谓语或其他成分。如： Peterenteredtheclassroomand(Peter)satathisdesk. Ilikedancingbutmybrother(likes)singing. WhatIsaidmadeJackhappybut(whatIsaidmade)Janeangry.Exercise:用括号标出可省略的部分:(1)Istudyatcollegeandmysisterstudiesathighschool.(2)Whensummercomes,thedayisgettinglongerandlonger,andthenightisgettingshorterandshorter.4.从属连词when、where、if、than等后常用省略结构。如： Youshouldbecarefulwhen(youare)crossingtheroad. Youneedtomakeimprovementswhere(itis)necessary. Pleasecallmebackif(itis)possible. IloveEnglishmorethan(I)ever(lovedEnglish).Exercise:用括号标出可省略的部分:(1).Whenhewasstillaboyof10,hehadtoworkdayandnight.(2).IfitisnecessaryI’llexplaintoyouagain.5. 动词不定式作宾语或宾语补足语时，在后句的动词不定式结构中，常省略与前句重复的to后面的内容。如： Youdon’thavetodoitifyoudon’twantto(doit). You’dbetternottakemedicineunlessyourdoctortoldyouto(takemedicine).在tobe或tohavedone结构中，省略时往往保留be或have。如： IambusiernowthanIusedtobe(busy). —HasMikefinishedhisproject? —Heseemstohave(finishedhisproject).Exercise:用括号标出可省略的部分:(1).—Areyougoingthere?—Yes,I’dliketogothere.(2).Hedidn’tgivemethechance,thoughhehadpromisedtogivemethechance.Step4Applyingth