一般过去时讲解.ppt

一般过去时 时态介绍 一般过去时结构 谓语变化 一般过去时用法 练习 一般过去时介绍 1.定义： 一般过去时态表示过去某个时间发生的动作或存在的状态,常和表示过去的时间状语连用;也表示过去经常或反复发生的动作,常和表示频度的时间状语连用。 2.时间状语： yesterday last night in 1990 two days ago 等 3.频度副词： often always 等 例句:I got up at 7:00 yesterday. My father was at work yesterday afternoon. He always went to work by bus last year. 1.与ago 连用： a moment two minutes three hours five days one week six months four years last one just now in the old days in those days in 1980 the other day at that time once upon a time 一般过去时的构成 E.g. You are right. 一般现在时 I want to go to school. We are doing our housework now. 正在 The bus is leaving at 8:00. 进行 时 be动词(was,were) 助动词(did) 主语+谓语 情态动词(could,might) 实义动词(有确切含义的动词，可 以单独做谓语,如:played 等) 例如： They were happy. He played football. You did your homework. 谓语变化 3、 辅音字母结尾词，重读闭音节先双写，然后才能加-ed。 stop→stopped plan(计划) →planned drop -- dropped beg -- begged 4、“辅音字母+y”尾，y改为i, 再加 -ed。 carry -- carried study -- studied 巧记不规则动词过去式 1.中间去e，末尾加t??? 如： keep→kept， feel→felt， sleep→slept，sweep→swept　2.结尾d变t??? 如： build→built，lend→lent， send→sent，spend→spent　3.遇见i改为a ??如： ring→rang，sit→sat， drink→drank， sing→sang，swim→swam，begin→began， give→gave 4.“骑(马)”“开(车)”“写(字)”——把i变o如：ride→rode，drive→drove，write→wrote5.“想”“买”“带来”“打仗”——ought换上??? think→thought，buy→bought， bring→brought，fight→fought6.“教书”“抓住”——aught切莫忘 如：??? teach→taught，catch→caught7.ow/aw改为ew是新时尚 如：??? know→knew，grow→grew， throw→threw，draw→drew8.“放”“让”“读”过去式与原形一样 如：? put→put，let→let，read→read/red 一般过去