选择性必修 第二册Unit 3 Food and Culture教案配套课件ppt

这是一份选择性必修 第二册Unit 3 Food and Culture教案配套课件ppt，共13页。PPT课件主要包含了had，been，had bought，had had，had been，invited，spoken，had seen等内容，欢迎下载使用。

【情境探究】Dialgue 1: Dialgue 2:
观察对话中黑体部分的时态和语态并类比填空。(1)He ____ already _____(be) t Shanghai earlier this week. (2)I left the shp after I __________(buy) what I wanted.  (3)The task ________________(finish) befre 12: 00 yesterday.  
had been finished
【要义详析】一、过去完成时的概念过去完成时表示在过去某一时刻或某一动作之前发生的动作或状态, 句中常用by, befre, until, when等词引导时间状语。过去完成时除了强调动作发生在过去之外, 还常用于间接引语和虚拟语气的句子中。例如: *We had built five new buildings by the end f last year. 到去年年底, 我们已经建了五座新大楼。*The classrm hadn’t been cleaned befre the teacher came. 老师来之前教室还没有打扫过。
*The researchers said at least 4% f the ppulatin in thse cuntries had beeninfected. 研究人员表示, 那些国家至少有4%的人口被感染。*The letter was passed frm ne t anther until everyne had read it. 这封信从一个人传到另一个人, 直到每个人都看完。*Helen said(that)she had mved t anther flat. 海伦说她已经搬到另一套公寓去了。*If nly we had listened t their advice! 要是我们听了他们的建议就好了!
【名师点津】过去完成时的标志词和句型　　by+过去时间点, befre, until, hardly/scarcely. . . when. . . ; n sner. . . than; It was the first/secnd. . . time that. . . (从句用过去完成时)
二、过去完成时的构成1. 肯定句: 主语 + had + 过去分词+其他. 2. 否定句: 主语 + had + nt + 过去分词+其他. 3. 疑问句: Had + 主语 + 过去分词+其他? 疑问代词/疑问副词 + had + 主语 + 过去分词+其他? *The Unin sent letters t the embassy t cheer n the Chinese peple wh had fught against the epidemic. 工会致函大使馆, 为抗击疫情的中国人民加油。
*The cuntry had nt yet recvered frm the effects f the war. 这个国家还没有从战争的影响中恢复过来。*Hw many new wrds had yu learned befre the freign teacher came t yur schl? 在外教来你们学校之前, 你们学了多少新单词?
三、过去完成时的被动语态的形式1. 肯定句: 主语+ had been dne +其他成分. 2. 否定句: 主语+ had nt been dne +其他成分. 3. 疑问句: Had +主语+ been dne +其他成分? 疑问词+ had +主语+ been dne +其他成分? *By the time he gt t the schl, the first perid had been finished. 当他到达学校时, 第一节课已经结束了。
*The by was reminded that his hmewrk had nt been handed in. 那个男孩被提醒他的家庭作业还没有交。*Hw many buildings had been destryed when the hurricane ended? 当飓风结束时, 有多少建筑物被摧毁了?
【名师点津】(1)过去完成时指发生在过去之前, 也就是过去的过去的动作。用过去完成时必须有一个表过去的时间作对比。例如: After he had finished his hmewrk, he went t bed. 他写完作业以后才去睡觉。(2)如果两个动作紧接着发生, 则常常不用过去完成时, 特别是在包含befre和after的复合句中, 因为从句的动作和主句的动作发生的先后顺序已经非常明确, 可以用一般过去时代替过去完成时。例如: After he arrived in England, Marx wrked hard t imprve his English. 到达英国后, 马克思努力提高他的英语水平。
【即学活用】用正确的时态和语态填空(1)(2020·新高考全国Ⅰ卷)One mrning she tld her children abut a family she__________(visit) the day befre.  (2)It was suppsed that he _______(have)a sudden attack f faintness.  (3)All the fine ladies and gentlemen f the cuntryside ______________(invite)befre the party began.  (4)It was the first time she ____ ever _______ (speak) befre such a big audience. (5)Plice asked passers-by if they ________(see) the accident happen.  (6)Nthing culd have saved him even if he _______________(tend) withut delay.  
had visited
had been tended