Unit 1 Food matters Grammar and usage 課件-高中英語牛津譯林版(2020)選擇性必修第一冊

Grammar&Usage

Grammar&Usage

-ToinfinitivesassubjectsandpredicativesB4U1Class108ChristinaChuStep1ReadandfillStep1ReadandfillInthepast,theauthorlikedtoeat___________.The

authorwas______totrynewrestaurants.Toeatoutwasalso_____________toenhancetherelationshipwithfriends.Thentheauthorcameacross___________.Therearealotof________tochoosefrom.Itoffers__________________foruserstofollowstepbystep.Inthelastfewweek,theauthorengagedinhomecooking.Cookingathomeis_____.Theauthorcancookexactly_____hewants.Cookingathomeis______.atarestaurantacookingappeagerasocialactivityrecipesdetailedinstructionscheaperwhathealthierreasonsfunctionsbenefitsStep1ReadandfillStep1ReadandfillInthepast,theauthorlikedtoeat___________.The

authorwas______totrynewrestaurants.Toeatoutwasalso_____________toenhancetherelationshipwithfriends.Thentheauthorcameacross___________.Therearealotof________tochoosefrom.Itoffers__________________foruserstofollowstepbystep.Inthelastfewweek,theauthorengagedinhomecooking.Cookingathomeis_____.Theauthorcancookexactly_____hewants.Cookingathomeis______.atarestaurantacookingappeagerasocialactivityrecipesdetailedinstructionscheaperwhathealthierreasonsfunctionsbenefitsQ1：Inwhatorderisthetextorganized?A:Itisorganizedintheorderoftime.Q2:Canyoufindmorebenefitsaboutcookingathome？A:InthecontextofCOVID-19pandemic,cookingathomecanbeausefulskill,especiallyforyoungpeoplelivingalone.Q3:Doyouknowotherwaystoaccessrecipesonline?A:Cookingchannelsonvideowebsites.Step2ReadandlearnStep2ReadandlearnToinfinitivesassubjectsToinfinitivesaspredicativeitbeStep2ReadandlearnStep2Readandlearn①②③Q：Whatarethefunctionsofthethreeto-infinitives?A:①objectcomplement②attributives③adverbialsofpurposeStep3ConclusionStep3ConclusionStep3ConclusionStep3ConclusionHelpingkidsto

surftheInternetwithoutbeingcheatedbyevilfraudsonlineismyduty.Itisnogood/usedoingsth.Itis(agreat)fundoingsth.Itisawasteoftimedoingsth.Step3ConclusionStep3Conclusion如果主語用了不定式,表/賓語也要用不定式;主語用了動名詞,表/賓語也要用動名詞，如:Toseeistobelieve.=Seeingisbelieving.Itisbettertostayhomethan___（go）out.不定式做主語常表示具體的某一動作;表示泛指或一般的抽象的概念時，多用動名詞，如:_____(read)isanidealwaytoacquireknowledgeandbroadenourhorizons._____(read)thebookagainisnecessary.不定式可以和when,where,how,what,whether等連用,在句子中做主語、賓語和表語，而動名詞則不能，如:Howtosolvetheproblemisahotpotato.Wheretoputtheboxseemshardtodecide.Whethertodoithasn’tbeendecided.Whattodonextisuptoyou.it作形式主語時，還常用于Ittakessb.sometime/moneytodosth.這一句型中，如：Ittookmemorethananhourtodomyhomeworkyesterdayevening.昨天晚上我做作業(yè)用了一個多小時。togoReadingToreadStep3ConclusionStep3ConclusionStep3ConclusionStep3Conclusion（2）動詞不定式作表語時，可表示目的。Thenextstepistomakesurethatyouknowexactlywhatisrequired.Thepurposeofeducationis________________afinepersonalityinchildren.教育的目的是發(fā)展兒童良好的個性。（3）動詞不定式作表語時，可表示事態(tài)發(fā)展的結(jié)果、預(yù)期的結(jié)果或不幸的命運。Hewastoperishinashipwreckandtoleaveawifeandtwochildren.Youmustspeakout,ifweare________________friends.如果我們還想繼續(xù)做朋友的話，你就必須痛痛快快地把話都說出來。Step3ConclusionStep3Conclusion（4）動詞不定式作表語且用于第一人稱的疑問句時，可表示征求意見。WhatamItosayiftheyaskmethequestion?WhatamI________________ifIhavenomoney?如果沒有錢，我該怎么辦呢？（5）作表語的動詞不定式用于被動語態(tài)時，相當于can/could,should,oughtto,must，具有情態(tài)意義。Youaretoberewarded.你應(yīng)該受到獎勵。(相當于shouldbe)It'snowheretobefound.哪兒也找不到它。(相當于can'tbe)Thesebooks________________________________________.這些書不應(yīng)該賣掉。（7）動詞不定式作表語時，可用于表示“同意、安排、命令、決定、勸告、意愿、禁止”等。Theyaretomarrynextweek.他們將在下周結(jié)婚。(表示“安排”)Childrenarenottosmoke.兒童不準吸煙。(表示“禁止”)Youmustbepatientandpersistentifyouare________________.想要成功，你就必須有耐心，有毅力。（8）動詞不定式作表語時，可用主動形式表示被動意義。Sheistoblame.她應(yīng)該受到責(zé)備。還有許多事要做。Agreatdealisyet________________.Step3ConclusionStep3ConclusionStep3ConclusionStep3ConclusionStep3ConclusionStep3ConclusionStep4UtilizationStep4UtilizationLocatedtoseetoturntositpaintedrangingtobetoinvitewin/loseabet;have/putabetonsthOne’sbetisthat……