精品文档精品文档PAGEPAGE3精品文档PAGE时态一般现在时初中英语八种时态概括意义时间状语构造及变化always,usually,often,sometimes,①be动词:②行为动词:经常、频频发生的everyweek肯定:主语+be(am/is/are)+其他肯定:主语+do(does)+其他动作或行为及现(day,year,month),否认:主语+am/is/are+not+其他否认:主语+don't/doesn’t+动原在的某种状况。Onceaweek,问:Be(am/isare)+主语+其他?问句:Do/Does+主语+动原?OnSundays答:Yesbe./No,benot.答:Yesdo/does./No,don’tdoesn’t.特殊:Wh+Be的疑问句?特殊:Wh+do/does的疑问句?一过去某个时间里发生的动作或状般态;过过去习惯性、经常去性的动作、行为。时ago,yesterday,longlongago,①be动词:②行为动词:theday肯定:主语+(was/were)+其他肯定:主语+动词过去式+其他beforeyesterday,否认:主语+wasn’t/werenot+其他否认:主语+did+动原lastweek问:Was/Were+主语+其他?问句:Did+主语+动原?(year,答:Yesbe./No,benot.答:Yesdid./No,didn’t.night,month),特殊:Wh+was/were的疑问句?特殊:Wh+did的疑问句?in1989,justnow,attheageof5,oneday,onceuponatime,一般表示将要发生的动作或存在的状将态及打算、
计划
项目进度计划表范例计划下载计划下载计划下载课程教学计划下载
或来准备做某事。时tomorrow,by,nextday(week,month,year),soon,inafewminutes,thedayaftertomorrow基本构造begoingto+动原will/shall+do.肯定:主语+am/is/are/goingto+do;肯定:主语+will/shall+动词原形否:主语+am/is/are+notgoingtodo否认:主语+willnot(won’t)+动词原形问:Be+主语+goingtodo?问句:Will/Shall主语+动词原形?答:Yesbe./No,benot答句:Yeswill./No,won’t.特殊:Wh+Be主语goingtodo的疑问句?特殊:Wh+will的疑问句?now,look,listen现在表示现阶段或说进行话时正在进行的时动作及行为。过去表示过去某段时进行间或某一时刻正时在发生或进行的行为或动作atthistime,thesedays,Atthistimeyesterday,atthattime,或when引导的一般过去时的时间状语基本构造:肯定:主语am/is/are+doing否认:主语am/is/are+not+doing.基本构造:肯定:主语was/were+doing否认:主语was/werenot+doing.问:am/is/are主语+doing?答:Yesbe./No,benot特殊:Wh+Be主语+疑问句?问:Was/Were主语+doing?答:Yeswas/were./No,was/werenot特殊:Wh+Be主语+疑问句?过去发生或已现在经达成的动作对recently,基本构造:lately,注意:当与一段时间连用时,动词要改为延续性动词。havebought=havebeenhad达成现在造成的影响时或结果,或从过去已经开始,持续到现在的动作或状态。以过去某个时间过去为
标准
excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载
,在此从前达成发生的动作或行时为,或在过去某动作从前达成的行为,即“过去的过去”since+时间点for+时间段。=(since+时间点inthepastfewyears,before,bytheendoflastyear(term,month);过去时态的从句肯定:主语+have/has+done(动词的过去分词)否认:主语have/has+not+done.(动词的过去分词)ago)问句:主语+have/has+done(动词的过去分词)?答:Yeshave/has./No,have/hasnot.特殊:Wh+have/has主语+疑问句?基本构造:肯定:主语+had+done(动词的过去分词)否认:主语hadnot+done.(动词的过去分词)问句:主语+had+done(动词的过去分词)?答:Yeshad./No,hadnot.特殊:Wh+had主语+疑问句?haveborrow=havekepthavedied=havebeendeadhavebeento:havegoneto:havebeenin:过去立足于过去某一将来时刻,从过去看将时来,常用于宾语从句中Thenextday基本构造:②would+do.(morning,year),the肯定:主语+was/weregoingto+do;肯定:主语+would+动词原形followingmonth否:主语+was/were+notgoingtodo否认:主语+wouldnot(wouldn’t)+动词原形问:Be+主语+goingtodo?问句:Would主语+动词原形?(week)答:Yesbe./No,benot答句:Yeswould./No,wouldn’t.特殊:Wh+Be主语goingtodo的疑问句?特殊:Wh+would的疑问句?