英语人教版九年级全册Unit12 Section A Grammar Focus.ppt

Unit12Lifeisfulloftheunexpected SectionAGrammarFocus Review Lookatthefollowingpicturesandtalkaboutwhatyouusuallydointhemorning Iamwokenupbytheclock Then Istaysleepyforawhile Finally Idecidetogetup Then Ibrushmyteeth stillfeelingsleepy Next Ihavebreakfast feelingbetter Itakemyschoolbagandleavehome Icometothebusstationandwaitfortheschoolbus Intheend Iarriveatschoolandstartthewholeday sclasses GrammarFocus got had left got had rung got had left was about decided was waiting heard 一 概念过去完成时表示一个动作或状态在过去某一时间或动作之前已经完成或结束 也可能是早已完成或结束 时间即 过去的过去 也可指过去的动作延续到过去的某个时刻 二 结构 had 动词的过去分词 过去完成时 三 用法 表示过去某一时间或动作之前已经发生或完成的动作或存在的状态 句中常用by before when until等词引导时间状语 它是以过去某一时间为起点 所以过去完成时是一个相对的时态 表示的是 过去的过去 只有和过去某时间或某动作相比较时才能用到它 例 Mostoftheguestshadleftwhenhearrivedattheparty 当他到达晚会时 他发现大多数客人已经离开了 2 过去完成时还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或持续下去 常与for since等词连用 例 WhenJackarrived Maryhadbeenawayforalmostanhour 当杰克到时 玛丽已经离开快一个小时了 实战演练 用所给词的适当形式填空 1 WhenIgottherethebus go 2 BythetimeIgottoclass theteacher start teaching 3 We learn over1 000wordsbytheendoflastterm 4 I clean theroombeforehearrivedhere hadgone hadstarted hadlearnt hadcleaned bythetime的用法 bythetime意为 到 时候 为止 是一个介词短语 在句中常起到连词的作用 引导时间状语从句 如果从句中的谓语动词是一般过去式 那么主句的谓语动词通常用过去完成时 表示 截止到从句动作发生时 主句动作已经完成 即过去的过去 例 Bythetimeyoucameback Ihadfinishedthisbook 你回来时我已经把这本书看完了 从句谓语动词cameback为一般过去时 所以主句动作用过去完成时hadfinished 表示过去的过去 2 如果从句中的谓语动词为一般现在时或现在完成时 那么从句中的谓语动词常用将来完成时 表示 截止到将来的某一时刻为止 主句动作将已完成 例 BythetimeIgethome theywillhaveleft 我到家时他们将已经离开 BythetimeIgraduatenextyear Iwillhavelivedhereforfiveyears 到明年毕业时 我将已经在这待了五年了 1 bytheendof 时间点意为 到 结束时 过去的时间点 主句用过去完成时 例 Bytheendoflastyear IhadstayedinXi anforsevenyears 到去年结束时 我已经在西安待了7年了 将来的时间点 主句用将来完成时 拓展 例 Bytheendofnextmonth Iwillhavefinishedmynewbook 到下个月结束时我将要完成我的新书 2 by 时间点意为 到 为止 截止 时 现在的时间点 主句用现在完成时 例 Bynow Ihavefinishedallmyhomework 截止现在 我已经完成了所有的作业 过去的时间点 主句用过去完成时 例 Byyesterday thebuildinghadbeencompleted 截止昨天 这个建筑就已经完成了 将来的时间点 主句用将来完成时 例 Bytomorrow allthestudentswillhavebeenoutoftheschool 到明天所有的学生都将离校 1 Timwentintothebathroom Marygotup 2 Thecoffeebecamecold Iputcreaminthecoffee 4aMakesentencesusingbythetimeorbefore BythetimeMarygotup Timhadalreadygoneintothebathroom BeforeIputcreaminthecoffee thecoffeehadbecomecold Theteachercollectedthemathhomework Igottoschool Icompletedtheworkformyboss Theworkdayended BythetimeIgottoschool theteacherhadcollectedthemathhomework Bythetimetheworkdayended Ihadcompletedtheworkformyboss Themoviestarted Iarrivedatthecinema Mymotherfinishedmakingtheapplepie Igothomefrommylanguagecourse BythetimeIarrivedatthecinema themoviehadstarted BythetimeIgothomefrommylanguagecourse mymotherhadfinishedmakingtheapplepie BythetimeIarrivedattheparty everyoneelse already 2 Whenheputthenoodlesintoabowl herealizedhe toaddthegreenbeans 4bFillintheblankswiththecorrectformsofthewordsinthebox rushoutforgetarriveatgointoshowupfindout had shownup hadforgotten Bythetimemymothercamebackfromthemarket Ialready thedoortogoformypianolesson 4 Beforeshegottotheairport she abouttheearthquake 5 Whenshe themovietheater sherememberedshehadforgottentofeedherdog 6 Beforeshegotachancetosaygoodbye he thebuilding hadrushedout hadfoundout arrivedat hadgoneinto BythetimeIleftforschoolinthemorning Bytheendoftheschoolday 3 Bydinnertime I 4cWritetwotruestatementsandonefalsestatementaboutyourdayyesterday Thenaskyourclassmatestoguessthefalsestatement Exercises I 根据汉语提示写出下面句中所缺的单词 1 IgotupearlythismorningbecauseIdidn twantto 错过 theearlybus 2 Thedropinpriceswasquite 出乎意料的 3 The 工人 felldownandgothurt 4 Theplanewasflying 在上面 theclouds 5 Therivergoesthroughthecityfrom 西 toeast miss unexpected worker above west II 写出下面短语的意思 1 showup 2 befullof 3 arriveat 4 beaboutto 5 takeoff 6 turninto 7 findout 出现 露面 充满 到达 将要做某事 飞机 起飞 变成 发现 找出 marketburnabovemissunexpectedpie 1 Igotuplateand theearlybusthismorning 2 Themountainis1 000meters thesealevel 用方框中词的适当形式完成下面的句子 missed above 3 Mydaughterwentwithmetothe andboughtclothes 4 Hiswifemadesomeapple forsupper 5 Hebecameworriedwhenheheardthe news marketburnabovemissunexpectedpie market pies unexpected 按要求完成下面的句子 1 ShehasgonetoShanghai Iarrivedthere 用bythetime改写句子 2 BythetimeIarrived Tomhadfinishedthework 对画线部分提问 ShehadgonetoShanghaibythetimeIarrivedthere WhathadTomdonebythetimeyouarrived 3 JennyhadalreadycleanedtheroomwhenIcalledher 改为否定句 Jennyhadn tcleanedtheroomwh