Unit1ArtPeriod2DiscoverUsefulStructures課件高二英語人教版選擇性

人教選擇性必修第三冊(cè)Unit1DiscoverUsefulStructures12Tounderstandthefunctionandmeaningofinfinitivesusedaspredicative

Tolearntouseinfinitivescorrectly

目標(biāo)一：TounderstandthefunctionandmeaningofinfinitivesusedaspredicativeActivity1:Readthesesentencesandfillintheblanksusingthecorrectwordsfromthetextonpages2and3.1.Perhapsthebest____tounderstandWesternartistolook

atthedevelopmentofWesternpaintingoverthecenturies.2.DuringtheMiddleAges,the_________ofWesternartwastoteach

peopleaboutChristianity.3.Inhiswork,Monet’s___wastoconvey

thelightandmovementinthescene…4._______________________wasnolongershowreality,butinsteadtoaskthequestion,“Whatisart?”waypurposeaimWhattheyattemptedtodo主系表…thebestwaytounderstandWesternartistolook……,thepurposeofWesternartwastoteach……,Monet’saimwastoconvey…Whattheyattemptedtodowas…(to)show…Theyareallpredicativeinthesentence.Theyallconsistofinfinitivepattern.

動(dòng)詞不定式（短語）作表語相當(dāng)于名詞作表語。它和主語處在同等地位，所指的或是和主語一樣的東西，或是主語產(chǎn)生的結(jié)果。常常可以將主、表交換位置，句子的意義不變。DefinitionofInfinitive動(dòng)詞不定式（短語）作表語Activity3:Matchthesentencehalvesandunderlinethenounsorclausesusedasthesubjectineachsentence.1.Theyoungsinger’sintentionof

performingthesongwas2.Thebestwaytodobusinessis3.Whatthesurvivorsattemptedtodowas4.Themainpurposeofarteducationinschoolsis5.Theaimofthetwoleadersattheconferencewas6.Forahumbleperpon,oneofthehardestthingsmightbe7.Whenyouarefacedwithaseriousdecision,mysuggestionis8.Themotherbelievesherdutyis9.AllhewantedafteratiringdaywasSummary1.主語是以intention,way,aim,things,duty,suggestion,duty,hope,

idea,plan等為中心的名詞詞組時(shí)，或者以what引導(dǎo)的名詞性分句表

示，一般用動(dòng)詞不定式作表語說明主語的內(nèi)容。e.g.Theiraimistoreducepeople'sdependencyonthewelfarestate.Hisambitionistoflytothemoononeday.Functionsofinfinitive動(dòng)詞不定式（短語）作表語2.表示目的。

e.g.Thenextstepistomakesurethatyouknowexactlywhatisrequired.thepurposeofthenextstep3.動(dòng)詞不定式在表語中表示將來和預(yù)計(jì)。=whatwillhappen=willcomelater4.用于被動(dòng)語態(tài)，相當(dāng)于can/could,should,oughtto,must，具有情態(tài)意義。e.g.Youhavedonesomuch.Youaretoberewarded.

Youshouldberewarded.5.動(dòng)詞不定式作表語時(shí)，可用主動(dòng)形式表示被動(dòng)意義。e.g.Whois

toblameforthefire.

Somethingisstilltofindout.動(dòng)詞不定式作表語to的省略1.all作主句主語，其后的定語從句中含有實(shí)義動(dòng)詞do的某種形式時(shí)。e.g.Allweneedtodoisliveeachdaywithhope.2.what引導(dǎo)的從句作主語，從句中含有實(shí)義動(dòng)詞do的某種形式時(shí)。e.g.WhatIwanttodoistakeaholidayrightaway.3.（主句）主語被only，first，one，least或形容詞最高級(jí)修飾，且其后作定語的從句或短語中含有實(shí)義動(dòng)詞do的某種形式時(shí)。e.g.Intheeveningtheonlythinghedidwasreadthenewspaper.Exercisetoconstructtolosetopunishtoclean目標(biāo)二：TolearntouseinfinitivescorrectlyActivity1:Writethesentencesbyreferringtoactivity3.Thencheckwitheachother.Thesentencepatterns:…’sintentionof(doingsth.)…wasto…Thebestwayto…isto…What…attemptedtodowas(to)…Themainpurposeof…isto…Theaimof…isto…Oneofthe…thingsmightbeto…Allthat…was/isto…Activity2:Workinpairs.Makeconversationsusingthefollowingquestionsandsentencepatterns.Mybiggestdream/ambitioninlifeisto…IthinkallIhavetodois…Myplanisto…Ithinkoneofthehardestthingsmightbe

…

Iguessthebestwayto

…is

…Youcanbeginlikethis:T:Hi,Alice.What’syourbiggestdreaminlife?S:We