Unit 1 Discovering useful Structures 学案 - 高中英语人教版（2019）选择性必修第二册

高二英语导学案主备人：审核：高二英语组使用时间：第第页Unit1DiscoveringUsefulStructuresUnderstandtheusageofInfinitiveasaPredicative.Learningobjective:Bytheendoftheclass,studentswillknowtheusageofinfinitiveaspredicativePre-class：LeadinWhatdothesesentenceshaveincommon?1.PerhapsthebestwaytounderstandWesternartistolookatthedevelopmentofWesternpaintingoverthecenturies.2.DuringtheMiddleAges,thepurposeofWesternartwastoteachpeopleaboutChristianity.3.Inthiswork,Monet'saimwastoconveythelightandmovementinthescene.4.Whattheyattemptedtodowasnolongershowreality,butinsteadtoaskthequestion,“Whatisart?”5.Thesebooksareofgreatvalueandtheyarenottobesold.讨论归纳：_________________________________While-class:Step1:DefinitionandfunctionsofInfinitive动词不定式（短语）作表语动词不定式（短语）作表语相当于名词作表语。它和主语处在同等地位，所指的或是和主语一样的东西，或是主语产生的结果。常常可以将主、表交换位置，句子的意义不变。Step2:Functionsofinfinitive1.PerhapsthebestwaytounderstandWesternartistolookatthedevelopmentofWesternpaintingoverthecenturies.2.DuringtheMiddleAges,thepurposeofWesternartwastoteachpeopleaboutChristianity.3.Inthiswork,Monet'saimwastoconveythelightandmovementinthescene…讨论归纳一：主语是以_____________________,___________,________duty,suggestion,duty,hope,idea,intention,plan等为中心的名词词组时，或者以what引导的名词性分句表示，一般用动词不定式作表语说明主语的_______。1.Thenextstepistomakesurethatyouknowexactlywhatisrequired.讨论归纳二：动词不定式在表语中表示_______。1.Idon’tknowwhatistohappentousifwegoonlikethis?2.Thebestitemontheprogramisstilltocome.讨论归纳三：动词不定式在表语中表示_________和_________。1.Youhavedonesomuch.Youaretoberewarded.2.Thesebooksareofgreatvalueandtheyarenottobesold.讨论归纳四：动词不定式用于________语态,相当于______________________,具有情态意义。1.Whoistoblameforthefire.2.Somethingisstilltofindout.讨论归纳五：动词不定式作表语时，可用_____形式表示被动意。Step3:动词不定式作表语to的省略1.all作主句主语，其后的定语从句中含有实义动词do的某种形式时。例：Allweneedtodoisliveeachdaywithhope.我们要做的是带着希望过好每天。2.what引导的从句作主语，从句中含有实义动词do的某种形式时。例：WhatIwanttodoistakeaholidayrightaway.我想马上就去度假。3.（主句）主语被only，first，one，least或形容词最高级修饰，且其后作定语的从句或短语中含有实义动词do的某种形式时。例：Intheeveningtheonlythinghedidwasreadthenewspaper.晚上他唯一做的就是看报纸。Step4:动词不定式（短语）作表语和v-ing（短语）作表语的区别1.动词不定式（短语）和v-ing（短语）作表语时，要注意与句子的主语在形式上保持一致，即若句子的主语为v-ing（短语），则表语也应使用v-ing（短语），若主语为动词不定式（短语），则表语也应使用动词不定式（短语）。例：Toseeistobelieve.=Seeingisbelieving.眼见为实。2.动词不定式（短语）和v-ing（短语）作表语时可换用，但以下情况除外：（1）当动词所表达的是某一特定的行为，尤其是将来的行为或有待于实现的行为时，通常用动词不定式（短语）作表语。Herbestwishistoputhernewideasintopractice.她最大的愿望是将自己的新想法付诸实践。（2）若动词所表达的并不强调动作，而是表示主语的内容，则通常用v-ing（短语）作表语。Myfavoritesportisswimming.我最喜欢的运动是游泳。【当堂检测】Ⅰ.单句语法填空1.Themottoofthelittleboywhowassufferingfromamusclediseasewas_______(live)onedayatatime.2.Itisyou,includingyourcousin,that____________(blame)forthelossofthegoldenchance.3.Medicalexpertssaythemosteffectivewaytopreventthespreadofdiseaseisforpeople________(wash)theirhandswithsoapandwater.4.Thenextstepis________surethatyouknowexactlywhatisrequired.5.Thepurposeofeducationis___________(develop)afinepersonalityinchildren.1Theyoungsinger'sintentionofperformingthesongwas2Thebestwaytodobusinessis3Whatthesurvivorsattemptedtodowas4Themainpurposeofarteducationinschoolsis1Theyoungsinger'sintentionofperformingthesongwas2Thebestwaytodobusinessis3Whatthesurvivorsattemptedtodowas4Themainpurposeofarteducationinschoolsis5Theaimofthetwoleadersattheconferencewas6Forahumbleperson,oneofthehardestthingsmightbe7Whenyouarefacedwithaseriousdecision,mysuggestionis8Themotherbelievesherdutyis9AllhewantedafteratiringdaywasAtobuildtrustbetweenyouandyourclientAtobuildtrustbetweenyouandyourclientBtoachievepermanentpeacebetweentheirtwocountriesCtobuildamemorialtotheheroeswhosavedtheirlivesDtosharehislove