unit 3 Sea ExplorationPeriod 3 Review useful structures-教案课件-高中英语选择性必修四

Period3ReviewusefulstructuresUnit3SeaExploration选择性必修四 人教版（2019）Lead inLookatthepicturesandrecallsomethingaboutZhengHeandZac.Atage16ZacSunderlandsetoffintothePacificOceanonaquest,notonlytoseetheworldandhavetheadventureof a lifetime,but to become theyoungest person to sail around theworldalone.Between1405and1433,ZhengHewithsevenfleetssailedwestnotonlytoexploreandtrade,buttoshowoffthegloryoftheYongleemperor.Lead inBetween1405and1433,ZhengHewithsevenfleetssailedwestnotonly to explore and trade,butto show off thegloryoftheYongleemperor.infinitiveusedasadverbialinfinitiveusedasadverbialReadthesentenceandpayattentiontoinfinitives.Lead inAtage16ZacSunderlandsetoffintothePacificOceanonaquest,not only to see the world and have the adventure of alifetime,butto becometheyoungestpersonto sail around theworldalone.infinitiveusedasadverbialinfinitiveusedasadverbialinfinitiveusedasattributiveReadthesentenceandpayattentiontoinfinitives.Activity 1Thefunctionsofinfinitive1Asthesubject(S)4Astheobjectcomplement(OC)2Asthepredicative(P)5Astheattributive(Attr)3Astheobject(O)6Astheadverbial(Ad)Reviewthefunctionsinfinitive.Activity 1 Findallthesentencescontaininginfinitivesinthereadingpassage.Thenmarktheirfunctions.To complete the great map of the worldwasastrongpassionfor.MarcoPolostalesinspiredEuropeanexplorersto search for sea routes fromwesttoeast.Here,merchantsfromChinaandmanyotherplacesmetto negotiate trade deals.whichwillhelpto greatly develop the whole areaforthebenefitoffuturetradeandculturalexchange.(S)(OC)(Ad)(O)Avtivity 1Thesefleetswereasightto beholdandwereinaleagueoftheirownatthattime.To reach out across the searemainsastrongdesiretoday.Theaimofthisinitiativeisto encourage cooperationand.Tradinghasgrowngreatly.,andwillcontinue to do soinyearsto come.(P)(Attr)(S)(O)(Attr)Avtivity 1.therearestillmanyotherplacesleftto explore.Chinahasjoinedothernationsonseveralexpeditionsto explore the Arctic.thereisanurgentneedto study theArcticinorderto understand climatechangeanditseffects.theneedto tradeandthedesireto enhance relationshipswilldriveChinato reach out acrosstheseafarintothefuture.(Attr)(Attr)(Attr)(Ad)(Attr)(Attr)(OC)动词不定式动词不定式主动主动被动被动用法用法一般式todotobedone表示在谓语动词所表示的动作之后或同时发生的动作完成式tohavedonetohavebeendone表示在谓语动词所表示的动作之前发生的动作进行式tobedoing/表示正在进行的动作，与谓语动词所表示的动作同时发生完成进行式tohavebeendoing/表示在谓语动词所表示的动作之前一直进行的动作不定式的构成与形式不定式的构成与形式Summary 不定式作主语不定式作主语当主语较长、谓语较短时，常用当主语较长、谓语较短时，常用it作形式主语，而将不定式放到谓作形式主语，而将不定式放到谓语的后面。语的后面。e.g.Itwaswiseofyoutorefusehisinvitation.Itisnecessaryforyongmantomastertwoforeignlanguages.Todothatsortofthingisfoolish。主语主语Summary 不定式作宾语不定式作宾语常跟不定式作宾语的动词：常跟不定式作宾语的动词：agree,aim,arrange,choose,decide,demand,desire,determine,expect,fail,intend,learn,plan,manage,prepare,pretend,promise,refuse,threaten,wish,offer,Iwanttoseeyouthisevening.宾语宾语Summary e.g.Theyintendtoclosetheschoolattheearliestopportunity.被被only,last,next以及序数词或形容词最高级修饰的名词常用不定式以及序数词或形容词最高级修饰的名词常用不定式作定语。作定语。e.g.Mikewasoftenthefirststudenttoarriveatschool.Hewastheonlymantopasstheexamination.有些名词后面常接不定式作定语，如有些名词后面常接不定式作定语，如ability,chance,desire,decision,effort,intention,need,opportunity,plan,promise,pressure,right,time,way等。等。e.g.Aftermonthsofunemployment,allheaskedforwasachancetoearnhisbread.不定式作定语不定式作定语Wefoundahousetolivein.定语定语Summary 不定式作状语不定式作状语不定式作状语，常表示不定式作状语，常表示目的、原因、结果目的、原因、结果等。等。e.g.Theyweregladtoseetheirsontakengoodcareofinthekindergarten.Tocatchthebus,IgotupatsixthismorningIjumpedwithjoytohearit.不定式作结果状语时，常用于不定式作结果状语时，常用于“only+不定式不定式”结构，表示未曾预料结构，表示未曾预料到的或令人不快的结果。到的或令人不快的结果。e.g.Afriendofminecametoseemetonight.Alanliftedarockonlytodropitonhisownfeet.ShecameheretostudyEnglish.状语状语Summary 不定式作补语不定式作补语advise,allow,ask,beg,cause,encourage,expect,forbid,force,get,intend,invite,like,love,order,persuade,prefer,remind,require,teach,tell,want,warn,wish,waitfor,callon,dependon跟不定式作补语的动词及动词词组：跟不定式作补语的动词及动词词组：e.g.Iwasinterestedinastronomyandheaskedmetogiveapresentationtotheclass.Weretryingtopersuademanufacturerstosellthemhere.Iwarnedthepatientnottoeatcoldwateraftertheoperation.宾补宾补Summary Allyouhavetodoistofinishitquickly.表语表语不定式作表语不定式作表语不定式作表语，可以表示目的、事态发展的结果、预不定式作表语，可以表示目的、事态发展的结果、预期的结果或不幸的结局，如期的结果或不幸的结局，如e.g.Thepurposeoftheprojectwastoimprovethetrafficconditioninthiscity.Theyaretocomebeforenoon.如果主语部分含有实义动词如果主语部分含有实义动词do，那么作表语的不定式，那么作表语的不定式可以带可以带to，也可以不带，也可以不带to。这时，表语是对主语的一种。这时，表语是对主语的一种说明。说明。e.g.AllIcandois(to)leavehimalone.TheleastIcandois(to)writetoyoutosaythanks.Summary Jointhewordstomakesentencesusinginfinitives.Thendecidethefunctionofeachinfinitive.1.He/encouragedme/participateinthesurfingcompetition2.Thestorm/seems/begettingcloser3.Magellan/wasthefirstperson/sailaroundtheworldHeencouragedmetoparticipateinthesurfingcompetition.(OC)Thestormseemstobegettingcloser.(P)Magellanwasthefirstpersontosailaroundtheworld.(Attr)Activity24.TheUNpeacekeepingforce/aims/maintainpeaceandpreventarmedconflicts5.Thecrowd/stood/applaud/scientists/fortheirimportantoceanresearchworkTheUNpeacekeepingforceaimstomaintainpeaceandpreventarmedconflicts.(O)Thecrowdstoodtoapplaudscienti