人教版（2019）选择性必修第二册 课件 unit 3 Food and Culture Grammar课件

Unit3FoodandCulture

Grammar过去完成时的魅力Bythetimehewasfourteen,hehadread

hundredsofbooksaboutfoodandculture.Thiswasthetenthtimethathehaddelivered

aspeechaboutfoodandculture.Lookatthetwopairsofsentences,payingattentiontothemeaninganduseofthepastperfecttenseandthepastperfectpassivevoice.1.Thechefhadsetupanewfarm-to-tablerestaurantbeforehisnewcookbookwaspublished.在他的新烹饪书出版之前，这位大厨已经开了一家从农场到餐桌的新餐厅。Anewfarm-to-tablerestauranthadbeensetupbythechefbeforehisnewcookbookwaspublished.2.TheyhadfinishedtheirdinnerbythetimeSamjoinedthem.Sam来的时候，他们已经吃完晚饭了。TheirdinnerhadbeenfinishedbythetimeSamjoinedthem.Findmoresentencesusingthepastperfecttenseorthepastperfectpassivevoicefromthisunit.WhenmyfamilyandIhadjustarrived

inChina,wewentlookingfora

goodplacetoeatinBeijing.ASichuanrestauranthadbeenrecommendedtousbyafriend,andfinally,wefoundit.Completethetwoconversationswiththecorrectformsofthewordsintheboxusingthepastperfecttenseorthepastperfectpassivevoice.arrivecanceleatfinishgettastetell1.Carol:____

youever

______

anyScottishfoodbeforeyourtriptoStAndrewslastyear?Paul:No,notreally.ButI_____________abouthaggismanytimesbeforewewentthere.Carol:Oh…Didyoutryit?Paul:Oh,yes!Youknowwhat?We______lateforsupperthatday,andsowejustatewhateverwasleftintheuniversitycanteen.We___________ourmealbeforewelearntwe________just_______haggis!Carol:Mygoodness!Paul:Well,itwasnotbad,Ihavetosay…tastedHadhadbeentoldarrivedhadfinishedhadeaten2.Carol:WhenIgottotheteahouseyesterday,Ifoundnobodythere._____it_______________?Paul:Oh,I’msosorrythatIforgottotellyou!Theget-togetherwascancelledyesterday

morningbecauseSally,thehostess,_______intoacaraccident.Carol:Oh,I’msosorrytohearthat.HopeSallyrecoverssoon!arrivecanceleatfinishgettastetellHadhadgotbeencancelled过去完成时及其被动语态1.概念：过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作，即“过去的过去”。2.基本结构：(1)肯定结构：主语＋had(been)done＋其他成分(2)否定结构：主语＋hadnot(been)done＋其他成分(3)疑问句结构：Had＋主语＋(been)done＋其他成分？疑问词＋had＋主语＋(been)done＋其他成分？Wehadnotcleanedtheclassroombeforetheteachercame.Theclassroomhadnotbeencleanedbyusbeforetheteachercame.3.基本用法(1)过去完成时还可用在hardly...when...，nosooner...than...，Itwasthefirst(second，etc.)time(that)...等固定句型中。Hardlyhadhebeguntospeakwhenhewasinterruptedbytheaudience.他刚开始演讲，听众就打断了他。Itwasthethirdtimethathehadbeenoutofworkthatyear.这是他那一年第三次失业了。(2)表示由过去的某一时刻开始，一直延续到过去另一时间的动作或状态，常和for，since引导的时间状语连用。Ihadbeenatthebusstopfor20minuteswhenabusfinallycame.当车来的时候，我在车站已经等了20分钟。ItwasatleastthreemonthssinceIhadleftBeijing.我离开北京至少有三个月了。(3)过去完成时常常用在told，said，knew，heard，thought等动词后的宾语从句(或间接引语)中，这时从句中的动作发生在主句表示的过去的动作之前。Theysaidthattheyhadplantedthetreesonthehillside.他们说他们把树种在山坡上了。(4)动词think，want，hope，mean，plan，intend等用过去完成时来表示过去未曾实现的想法、希望、打算或意图等。Theyhadwantedtohelpbutcouldnotgetthereintime.他们本来打算去帮忙，但没有及时赶到那里。(5)表示在过去某一时间或动作以前完成了的动作，即“过去的过去”。可以用by，before等介词短语或一个时间状语从句来表示，也可以用一个表示过去的动作来表示，还可以通过上下文来表示。①by＋过去的时间点Ihadfinishedreadingthenovelbynineo’clocklastnight.到昨天晚上九点，我已经读完了那本小说。②bytheendof＋过去的时间点MorethanthreethousandEnglishwordshadbeenlearnedbytheendoflastterm.到上学期末已经学习了三千多个英语单词了。③bythetime+一般过去时的句子Bythetimetheyarrived,wehadgoteverythingready.在他们到这之前，我们已经一切就绪。④before＋过去的时间点MorethansixhundredtreeshadbeenplantedbeforelastWednesday.在上周三前已经种了600多棵树了。完成句子1.Thecompanysaidtheproductioncosts_________________(reduce).2.Themediareportedthatmorethan1,000people_______________(kill)intheearthquakebeforetherescueteamcame.3.Astheassignment_______________(do),hewentontosearchtheInternet.4.Bythetimehego