一般过去时精讲.ppt

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1、Unit4Whatdidyoudolastweekend?1.定义：(1)表示过去某个时间发生的动作或存在的状态----与表示过去的时间状语连用我昨天7点起床。Igotupat7:00yesterday.我爸爸昨天下午在工作。Myfatherwasatworkyesterdayafternoon.(2)也表示过去经常或反复发生的动作---与表示频度的时间状语和表示过去的时间状语连用。他去年总是坐公交去上班。Healwayswenttoworkbybuslastyear.1.表过去的时间状语：yesterday,lastnight,three

2、daysago,oneday,thatwinter,in1990等lasttimenightMondayweekmonthtermyesterdaymorningafternooneveningthedaybeforeyesterday与last连用与yesterday连用：用于一般过去时的时间状语与ago连用：amomenttwominutesthreehoursfivedaysoneweeksixmonthsfouryearsago与one连用：onemorningafternooneveningdayMondayafternoon5.与

3、in连用：in1980inthosedaysintheolddays(1)刚刚justnow；(2)前几天theotherday；(IsawhiminParistheotherday.)(3)从前onceuponatime(4)很久很久以前longlongago其他时间状语：一般过去时之谓语变化所有时态都是通过动词变化来表现的E.g.Youareright.一般现在时Iwanttogotoschool.be动词(was,were)助动词(did)主语+谓语情态动词(could,might)实义动词(worked,played)例如：Theyw

4、erehappy.Didyouplaybaseballyesterday?Icoulddoit.Heworkedhere.一般过去时的谓语1、一般词尾加-ed。stay→stayedhelp--helpedask--askedlook→looked2、e结尾的只加-d。hope→hopedlove--loveddance--dancedlive→lived规则动词过去式的构成3、最后三个字母辅元辅音，先双写，然后才能加-ed。stop→stoppedplan(计划)→planneddrop--droppedbeg--begged4、“辅音字母

5、+y”尾，y改为i,再加-ed。carry--carriedstudy--studied规则动词过去式-ed的发音1.在以清辅音结尾的规则动词后,-ed读作/t/work/w3:k/edt/2.在以浊辅音或元音结尾的规则动词后,-ed读作/d/play/pleI/live/lIv/edd/edd/3.在以/t/或/d/结尾的规则动词后,-ed读作/Id/visit/’vIzIt/edId/finishedenjoyedshoutedmovedhelpedwantedcalledneeded/t//d//Id//d//d//t//Id//Id/

6、Let’sreadthem1.肯定句：主语+行为动词过去式be动词过去式(was/were)e.g.Weplayedfootballyesterday.Iwasintheofficelastnight.Hecouldn’tswim10yearsago.2.否定句didnot/didn’t+行为动词原形wasnot/wasn’t+其他成分werenot/weren’t+其他成分e.g.Iwasnotintheofficelastnight.Ididn'tsingasongatKangkang'sparty.Ididn'tplayvideogam

7、es.3.一般疑问句did+主语+行为动词原形was/were+主语+其他成分eg.-Didyougoshoppingyesterday?-Yes,Idid./No,Ididn’t.-Wasshe15yearsoldlastyear?4.特殊疑问句特殊疑问词+did+主语+行为动词原形特殊疑问词+was/were+主语+其他成分eg.-Didyougoshoppingyesterday?Whenandwherewereyouborn?Exercises用括号里动词的适当形式填空。1.He__________(read)thatbooklast

8、week.2.Lastnighthe___________(arrive)justintimefortheshow.3.Mary___________(marry)