单元语法聚焦四2省公开课一等奖新名师优质课比赛一等奖课件.pptx

单元语法聚焦过去进行时&must使用方法Unit 4 Stories and Poems第1页教材典句教材典句1.One day the children were playing in the garden when a giant appeared.一天，孩子们正在花园里玩耍，这时一个巨人出现一天，孩子们正在花园里玩耍，这时一个巨人出现了。了。2.It was wearing a big yellow hat.它戴着一顶黄色大帽子。它戴着一顶黄色大帽子。单元语法聚焦第2页3.He thought it must be the kings musicians passing by.他想一定是国王乐师们正在经过。他想一定是国王乐师们正在经过。4.I think a good story must have great characters and an interesting plot.我认为一个好故事必须有主要人物和一个有趣情节。我认为一个好故事必须有主要人物和一个有趣情节。单元语法聚焦第3页语法探究语法探究 一、过去进行时一、过去进行时1.定义定义 过去进行时表示在过去进行时表示在_某一时刻或某一时间段内某一时刻或某一时间段内 _发生或进行动作。发生或进行动作。2.结构结构 主语主语_/_其它其它过去过去单元语法聚焦正在正在wasweredoing第4页3.时间状语时间状语 惯用时间状语有惯用时间状语有at five yesterday,the whole morning,when/while 引导时间状语从句。引导时间状语从句。单元语法聚焦第5页二、二、must 使用方法使用方法1.must 是是_动词，后面要接实义动词或动词，后面要接实义动词或be动词原形。动词原形。2.must 意为意为“必须必须”，mustnt 意为意为“不准；禁止不准；禁止”。3.must 还能够用来表示推测，意为还能够用来表示推测，意为“_”，用于必定句，用于必定句，表示较大可能推测。否定推测要用表示较大可能推测。否定推测要用cant,意为意为“_”。单元语法聚焦情态情态一定一定不可能不可能第6页4.注意：注意：(1)must组成普通疑问句回答：必定回答用组成普通疑问句回答：必定回答用must，否定回答，否定回答用用neednt或或dont have to。Must I leave now?Yes,you must./No,you needt./No,you dont have to.(2)must 强调主观上认为强调主观上认为“必须必须”做事；做事；have to 强调客观上强调客观上“不不得不得不”做事。做事。单元语法聚焦第7页实战演练实战演练.单项选择单项选择()1.Why did the car hit the boy?Because the driver _ on the phone at that time.AtalkBis talking Cwas talking Dhave talkedC单元语法聚焦第8页()2.Our classmates went to a concert yesterday afternoon.What a pity!I _my homework.Ahad done Bwas doing Cam doing Dwould do单元语法聚焦B第9页()3.Did you hear someone knock at the door just now?Sorry.I _ to my friend on the phone.Awas talking Btalked Cam talking Dtalk单元语法聚焦A第10页()4.白银白银 We _ TV from seven to nine last night.Awere watching Bwill watch Cwatched Dwatch单元语法聚焦A第11页()5.兰州兰州 When you_ me last night,I _ the piano.Awere calling;was playing Bwere calling;played Ccalled;played Dcalled;was playing单元语法聚焦D第12页()6.随州随州Did you watch the football match on TV last night?I wanted to,but my father_ his favourite TV program.Awatched Bwatches Cwas watching Dhad watched 单元语法聚焦C第13页()7.日照日照 If you want to be on the school football team,you_ train harder.Acan Bwill Cmay Dmust 单元语法聚焦D第14页()8.丹东丹东Hurry up,Mum!The bus is coming.Wait a minute,dear.You_ cross the road until the traffic lights turn green.Amust Bneed Cmustnt Dneednt单元语法聚焦C第15页()9.毕节毕节Must I finish the homework this morning?_.ANo,you mustnt BNo,you cant CNo,you may not DNo,you neednt单元语法聚焦D第16页()10.云南云南I saw Susan in thelibrary just now.No,it_ be her.She went to Shanghai this morning.Amust Bcant Cmay Dneednt单元语法聚焦B第17页.按要求完成以下各题按要求完成以下各题1.They were talking happily in the room when I saw them just now.(改为普通疑问句改为普通疑问句)_ they _happily in the room when you saw them just now?2.Was he watching TV at eight yesterday evening？(作否定回答作否定回答)_，_ _talking单元语法聚焦WereNohewasnt第18页3.I was writing a story the whole morning.(改为否定句改为否定句)I _ _ a story the whole morning.4.She said,“I am trying to reach him all the afternoon.”(改为间改为间接引语接引语)She said that _ _ _ to reach him all the afternoon.wasnt单元语法聚焦shewastryingwriting第19页5.They were resting in_the_living_room from ten to eleven this morning.(对画线部分提问对画线部分提问)_ _they _ from ten to eleven this morning?Where单元语法聚焦restingwere第20页