Unit1FoodmattersGrammarandusage課件高中英語譯林版(2020)選擇性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動詞不定式作主語動詞不定式具有名詞特征，可充當主語。（做主語時謂語動詞用單數(shù)形式）Toseeistobelieve.

眼見為實。注：單個不定式作主語時，謂語動詞用單數(shù)形式；兩個及以上不定式作主語時，謂語動詞用復數(shù)形式；但作為一個整體時，謂語動詞用單數(shù)形式。到哪里去度假以及何時去度假還沒有決定。Wheretogoonaholidayandwhentogofortheholiday___________________(decide).到哪里去，何時去度假還沒有決定。Whereandwhentogoonaholiday____________________(decide).havenotbeendecidedhasnotbeendecided動詞不定式句子的主語時可以用形式主語it代替，將不定式置于句末，平衡句子結構。動詞不定式作主語Itisashametolitter.亂扔垃圾可恥Itisaprivilegetomeetyou.認識你很榮幸it作為形式主語時，常見句型。It+be+adj.+(forsb)todosth(adj修飾物）It+be+adj.+(ofsb)todosth(adj修飾人）It+be+n.+todosthIttakes/took/willtakesbsometimetodosth動詞不定式句子的主語時,若其后面需要用動詞作表語時，則作表語的動詞也最好使用不定式形式，保持形式一致(todoistodo)動詞不定式作主語Tosavemeistosaveyourself.救我也是救你自己。動詞不定式做句子的主語時,會有語態(tài)的變化。Itisagreathonorforme______________heretoday.今天我很榮幸被邀請到這里。Herbirthdaypartyis________________nextFriday.她的生日將于下周五舉行。tobeinvitedtobeheld動詞不定式作表語1.動詞不定式做表語直接用在系動詞之后，起解釋說明的作用，其主語通常是aim,ambition,dream,duty,goal,idea,intension,plan,purpose,task,way,wish等表示意向、打算、計劃的詞。Herwishistobeateacher.她的愿望是當一名教師。2.“疑問詞+不定式”也可以用作表語Thequestionishowtocarryouttheplan.問題是如何實施這項計劃。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!