英语各种时态的概念和句型结构一、一般现在时１、概念：表示经常性、习惯性的动作。２、句型结构（１）be(am,is,are)动词陈述肯定句：主语+be(am,is,are)+其它。陈述否定句：主语+be(am,is,are)+not+其它。一般疑问句：Be(am,is,are)+主语+其它？特殊疑问句：疑问词+一般疑问句？Whoarethey?反意疑问句：肯定陈述句+be(am,is,are)+not+主语（相应的代词）？Tomisadoctor,isn’the?否定陈述句，+be(am,is,are)+主语（相应的代词）？Tomisn’tadoctor,ishe?（２）实义动词陈述肯定句：其他人称：主语+v.原形+其它。WegotothebeacheverySunday.第三人称单数：主语+v.s+其它。Sallydoesherhomeworkeveryday.陈述否定句：其他人称：主语+don’t+v.原形+其它。Wedon’tgotothebeacheverySunday.第三人称单数：主语+doesn’t+v.原形+其它。Sallydoesn’tdoherhomeworkeveryday.一般疑问句：其他人称：Do+主语+v.原形+其它？DowegotothebeacheverySunday?第三人称单数：Does+主语+v.原形+其它？DoesSallydoherhomeworkeveryday?特殊疑问句：疑问词+一般疑问句？其他人称：WheredoyougoeverySunday?第三人称单数：WhatdoesSallydoeveryday?反意疑问句：肯定陈述句，+don’t/doesn’t+主语（相应的代词）？其他人称：WegotothebeacheverySunday,don’twe?第三人称单数：Sallydoesherhomeworkeveryday,doesn’tshe?否定陈述句，+do/does+主语（相应的代词）？其他人称：Wedon’tgotothebeacheverySunday,dowe?第三人称单数：Sallydoesn’tdoherhomeworkeveryday,doesshe?二、一般过去时１、概念：表示过去某个时间发生的动作或存在的状态。２、句型结构（１）be(was,were)动词陈述肯定句：主语+be(was,were)+其它。Iwasathomeyesterday.陈述否定句：主语+be(was,were)+not+其它．．Iwasn’tathomeyesterday.一般疑问句：Be(was,were)+主语+其它？Wereyouathomeyesterday?特殊疑问句：疑问词+一般疑问句？Wherewereyouyesterday?反意疑问句：肯定陈述句，+wasn’t/weren’t+主语（相应的代词）？Marywasatschoolyesterday,wasn’tshe?否定陈述句，+was/were+主语（相应的代词）？Marywasn’tatschoolyesterday,wasshe?（２）实义动词（实义动词的过去式没有人称和数的变化）陈述肯定句：主语+v.过去式+其它。TheyhadameetinglastMonday.陈述否定句：主语+didn’t+v.原形+其它。Theydidn’thaveameetinglastMonday.一般疑问句：Did+主语+v.原形+其它？DidtheyhaveameetinglastMonday?特殊疑问句：疑问词+一般疑问句？Whendidtheyhaveameeting?反意疑问句：肯定陈述句，+didn’t+主语（相应的代词）？TheyhadameetinglastMonday,didn’tthey?否定陈述句，+did+主语（相应的代词）？Theydidn’thaveameetinglastMonday,didthey?三、现在进行时１、概念：表示正在发生的动作，也可以用来表示按计划或安排将要进行的动作，有“意图”或“打算”等含义。２、构成：be(am,is,are)+v.ing３、句型结构陈述肯定句：主语+be(am,is,are)+v.ing+其它。Mikeislisteningtomusic.陈述否定句：主语+be(am,is,are)+not+v.ing+其它。Mikeisn’tlisteningtomusic.一般疑问句：Be(am,is,are)+主语+v.ing+其它？IsMikelisteningtomusic?特殊疑问句：疑问词+一般疑问句？Whoislisteningtomusic?反意疑问句：肯定陈述句，+be(am,is,are)+not+主语（相应的代词）？Mikeislisteningtomusic,isn’the?否定陈述句，+be(am,is,are)+主语（相应的代词）？Mikeisn’tlisteningtomusic,ishe?四、过去进行时１、概念：表示在过去某一特定的时刻或某一段时间正在发生的动作。２、构成：be(was,were)+v.ing３、句型结构陈述肯定句：主语+be(was,were)+v.ing+其它。Theywereworkingthistimeyesterday.陈述否定句：主语+be(was,were)+not+v.ing+其它。Theyweren’tworkingthistimeyesterday.一般疑问句：Be(was,were)+主语+v.ing+其它？Weretheyworkingthistimeyesterday?特殊疑问句：疑问词+一般疑问句？Whatweretheydoingthistimeyesterday?反意疑问句：肯定陈述句，+wasn’t/weren’t+主语（相应的代词）？Theywereworkingthistime...
