Unit1FoodmattersGrammarandusage课件高中英语译林版(2020)选择性2

Unit1Foodmatters

GrammarandUsageBytheendofthislesson,studentswillbeableto:1.Identifytheuseofto-infinitivesassubjectsandpredicatives;2.Workouttherulesofto-infinitivesassubjectsandpredicatives;3.Usetherightformsofto-infinitivestofinishtasksofcompletingamagazinearticle;4.Applyto-infinitivesinnewsituations.LearningaimsWhichdoyouprefer,eatingoutoreatingathome?Lead-inBelowisablogentryabouteatingoutandeatingathome.Readtheblogentryonpage6andfillinthefollowingmindmap.Inthepast,theauthorlikedtoeatat

(1)____________.arestaurantTheauthorwaseagertotrynewrestaurants.Toeatoutwasalsoasocialactivity(2)___________________withfriends.toenhancetherelationshipInthelastfewweeks,theauthorhasbeenengagedinhomemaking.Cookinghomeis(5)________.Theauthorcancookexactlywhathewants.Cookingsthomeis(6)_________.cheaperhealthierreasonsbenefitsThentheauthorcameacrossacookingapplastmonth.App’sfunctionsItofferslotsof(3)__________.tochoosefrom.Userscanfollow(4)_______________________stepbystep.recipesdetailedinstructionsTo-infinitivesassubjectsTo-infinitivesasPredictivesTo-infinitivesassubjectsTo-infinitivesasPredictivesExploringtherulesWorkingouttherulesTo-infinitivesassubjectsWhentheto-infinitiveisusedasasubject,weusuallyusethepreparatorysubject(1)_________________atthebeginningofthesentence.To-infinitivesasPredictivesTheto-infinitivecanalsobeusedasapredicative.Itusuallycomesaftertheverb(2)_________________.itbeIdentifyfunctionsoftheto-infinitiveinthefollowingsentencesfromtheblogentryofPartA.(1)Toeatoutwasalsoasocialactivity,allowingmetoenhancetherelationshipwithmyfriends.(2)Thereareavarietyofrecipesintheapptochoosefrom.(3)Myplanistoinvitemyfriendsoverattheweekendtoshowthemmynew-foundskills.objectcomplementattributiveadverbialofpurpose动词不定式作主语动词不定式具有名词特征，可充当主语。（做主语时谓语动词用单数形式）Toseeistobelieve.

眼见为实。注：单个不定式作主语时，谓语动词用单数形式；两个及以上不定式作主语时，谓语动词用复数形式；但作为一个整体时，谓语动词用单数形式。到哪里去度假以及何时去度假还没有决定。Wheretogoonaholidayandwhentogofortheholiday___________________(decide).到哪里去，何时去度假还没有决定。Whereandwhentogoonaholiday____________________(decide).havenotbeendecidedhasnotbeendecided动词不定式句子的主语时可以用形式主语it代替，将不定式置于句末，平衡句子结构。动词不定式作主语Itisashametolitter.乱扔垃圾可耻Itisaprivilegetomeetyou.认识你很荣幸it作为形式主语时，常见句型。It+be+adj.+(forsb)todosth(adj修饰物）It+be+adj.+(ofsb)todosth(adj修饰人）It+be+n.+todosthIttakes/took/willtakesbsometimetodosth动词不定式句子的主语时,若其后面需要用动词作表语时，则作表语的动词也最好使用不定式形式，保持形式一致(todoistodo)动词不定式作主语Tosavemeistosaveyourself.救我也是救你自己。动词不定式做句子的主语时,会有语态的变化。Itisagreathonorforme______________heretoday.今天我很荣幸被邀请到这里。Herbirthdaypartyis________________nextFriday.她的生日将于下周五举行。tobeinvitedtobeheld动词不定式作表语1.动词不定式做表语直接用在系动词之后，起解释说明的作用，其主语通常是aim,ambition,dream,duty,goal,idea,intension,plan,purpose,task,way,wish等表示意向、打算、计划的词。Herwishistobeateacher.她的愿望是当一名教师。2.“疑问词+不定式”也可以用作表语Thequestionishowtocarryouttheplan.问题是如何实施这项计划。B1Rewritethefollowingsentencesusingto-infinitiveaccordingtotherequirementsintheblanket.Applyingtherules1.ThenextdishthatthecookwillprepareisKungPaoChicken.(attributive)ThenextdishtobepreparedbythecookisKungPaoChicken.2.Thepreparationofhome-cookedmealsiseasyandenjoyable.(subject)

Topreparehome-cookedmealsiseasyandenjoyable./Itiseasyandenjoyabletopreparehome-cookedmeals.3.Herdreamisthatshewillopenarestaurantsomeday.(predicative)

Herdreamistoopenarestaurantsomeday.4.Wewillputthepotatoesinthepotfirstinorderthattheywillbecookedquickly.(adverbialofpurpose)

Wewillputthepotatoesinthepotfirst(inorder)tocookthemquickly.5.IconsidertheSoupoftheDayasthebestoptiononthemenu.(objectcomplement)IconsidertheSoupoftheDaytobethebestoptiononthemenu.B2Completethearticlewiththe

correctformsoftheverbs

(V-ed/V-ing/to-V)Locatedtoturntositpaintedrangingto

invitetobetoseeImagineyourfriendhastakenyououttodinneratSkyBuffet.Writeathank-younotetoyourfriend,offeringtoreturnthefavourbyinvitinghimorhertoyourhomefordinnernextweekend.Remembertouse

to-infinitives.Usetheexpressionsbelowtohelpyou.ExpressionsIamwritingto…Ihavealwayswantedto…Itwassokindofyouto…Iwouldlike/loveto…Itwaswonderfulto… Myplanisto…DearTom,

Iamwriting______________________________________.Itwassokindofyou_______________________________________.Itwaswonderful_____________________________.

Ihavealwayswanted________________________.Myplanis________________________________________________.Theviewwon’tbeasgoodasatSkyBuffetbutIwouldlike____________________.__________________________________________________________.ThankyouagainandIamlookingforwardtoyourcoming!