unit2grammar课件
日期:2010-12-08 12:45
twohoursago,yesterday,just,in1999,TwodaysagoIfelloffmybikeandbrokemyarmIfinallypassedmydrivingtestlastweek时间状语的位置可前可后一些不规则动词:BringbroughtbroughtPutputputThinkthoughtthoughtFeelfeltfeltKeepkeptkeptRunranrunComecamecomeDodiddoneGowentgonePresentperfect主语+have/has+donesthIhavebeentoHongkongHaveyoufinishedyourhomework?Theyhaven’tseeneachotherfortenyears(现在完成时)表示发生在过去的动作,year),sofar,Pastsimple一般过去时Weusethepastsimpleforacompleteactioninthepast主要是用来描述在过去某个时候发生的动作或存在的状态,thedaybeforeyesterday,常与already,yesterdaymorning(afternoon,threeyearsago,Wedrovehome也可以用来表示在过去某段时间里经常发生的习惯性动作,对现在有影响,yet,(oneweekago,—Haveyouhadbreakfast?—No,evening),…)等,month,before等连用,Healwayswenttoclasslate一般过去时的形式V-ed不规则动词buy-bought–bought常和一般过去时连用的过去时间状语有:lastnight(week,Ihaven’thadityet.He,
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