英语人教版九年级全册Unit 12 Section A1a-2d.ppt

Unit12Lifeisfulloftheunexpected SectionA 1A 2D 学习目标 1 掌握重点词汇 bythetime gotten oversleep2 学习重点句型 1 Bythetimeshegotup herbrotherhadalreadygoneintothebathroom 2 Whenshegottoschool sherealizedshehadleftherbackpackathome 教学重点过去完成时态的构成及用法 教学难点过去完成时态与一般过去时的不同用法 Previewwork 一 英汉互译直到 2 洗澡3 睡过头4 getintheshower二 写出下列单词的过去和过去分词形式1 get2 leave3 ring4 start Whatdoyouusuallydointhemorning getupearly sleeplate takeashower washone sface brushone steeth havebreakfast gotoschool dosomeexercise Leadingin Tina sBadDay Tina smorning 1a HowdidTinalook Sheoverslept sleptalongtime Bythetimeshegotup herbrotherhadalreadygottenintheshower Bythetimeshegotoutside thebushadalreadyleft Shewasrunningquickly Whenshegottoschool sherealizedshehadleftherbackpackathome Pairwork Whathappened Ioverslept AndbythetimeIgotup mybrotherhadalreadygottenintheshower 1b BythetimeIgotup mybrotheralreadyintheshower 2 BythetimeIgotoutside thebusalready 3 WhenIgottoschool IrealizedImybackpackathome gotten had had had left left Task2 Fillintheblankwiththehelpofthepictures 2a Numberthepictures1 4inthecorrectorder 1 2 3 4 2b 1 WhenI gethome I realize I leave mykeysinthebackpack 2 BythetimeI get backtoschool thebell ring 3 BythetimeI walk intoclass theteacher start teachingalready gothome got hadrung walked hadstarted realized hadleft Fillintheblankswiththecorrectverbforms finish2b overslept tookashower gottothebusstop rantoschool leftherbackpack ranbacktoschool gotbacktoschool classstarted 1 2 3 4 5 6 7 8 ThePastPerfectTense过去完成时 过去完成时的构成助动词had 用于各种人称和数 过去分词 WhenIgottoschool thebellhadrung 2 过去完成时的用法 主要是表示在过去某个时间 或是动作之前已经发生或完成的动作 也就是过去的过去 ThePastPerfectTense过去完成时 3 常用的几种方式 用介词by before等构成的时间短语 用连词when before after或者短语bythetime引导的时间状语从句 Wehadlearnt20Englishsongsbytheendoflastmonth TheplanehadtakenoffwhenIreachedtheairport BythetimeIgotup mybrotherhadlefthome Igothome Mylittlebrotherwenttobed BythetimeIgothome mylittlebrotherhadgonetobed BythetimeIgotoutside thebushadalreadyleft BythetimeIgotoutside thebushadalreadyleft 我出去的时候 公共汽车已经开走了 bythetime意思是 到 的时候 相当于when 后接过去时的句子时 主语的谓语动词用过去完成时态 构成 助动词had 动词的过去分词 用法 1 过去完成时动词表示过去某一时间或某一动作之前完成的动作或状态 强调过去某一动作发生在另一动作之前时 1 他说他以前见过你 Hesaidthathe see youbefore hadseen 2 到六点钟为止他们已经工作八小时了 Bysixo clockthey work foreighthours hadworked 2 过去完成时词可以表示过去某一时刻之前发生的动作或呈现的状态 这一动作一直持续或将继续下去 Bysixo clockthey work foreighthours WhenIcametoGZ he be thereforalongtime 用法 1 到了六点钟为止 他们已经工作了八小时了 2 我到广州时 他在那里很长时间了 hadworked hadbeen 3 到上个月中旬我们在北京住了有五年时间了 Bythemiddleoflastmonthwe live inBeijingforfiveyears hadlived 1 到昨晚上 他已写完那封信 Byyesterdayeveninghe write thatletter 2 他说他以前见过你 Hesaidthathe see youbefore 3 当我进来时 他已做完了作业 WhenIcameinhe finish hishomework 过去完成时与bythen 截止到那时 by9o clock 直到九点钟 bytheendof 在 结束 末之前 bythetime 在 时之前 uptillthen 直到那时 upuntillastnight 直到昨晚 等连用 表示过去的过去 hadwritten hadseen hadfinished 3 过去完成时和already just ever yet等连用表示过去的过去 用法 例如 1 他告诉我说他们队已经赢了 Hetoldmethathisteam already win had won 2 她说她仍没去过长城 Shesaidthatshe notgoto theGreatWallyet hadn tbeento 用法 过去完成时与when before assoonas till until等引导时间状语的从句连用 强调动作发生的时间前后 例如 1 她到家之前她的孩子已经睡着了 Whenshegothomeherchildren sleep hadslept 2 在他们到达之前电影已经开始了 Beforetheyarrivedherethefilm already start had started Lastnight assoonasI finish myworkIwenttosleep 3 我完成作业了就去睡觉了 hadfinished 1 Afterhe finish hisworkhewentout hadfinished 2 Thechildrenranawayafterthey break thewindow hadbroken 3 IwenttoTom shousebuthe go out hadgone Exercises 4 Annietoldmethathisfather go toParisandhe come backinafewdays hadgone wouldcome 5 Myfriend buy thecartwoyearsago He buy itfortwoyears