(点击进入) 一般现在时      用法：经常性的和习惯性的动作        常用时间状语 ： usually,sometimes,in spring,                          every day,in the morning          动词构成 ：动词原型.           work                          动词+S.（主语是第三人称单数）works        否定构成  ： don’t+动原        doesn’t+动原         一般疑问构成及简答：Do+主语+动原+其它？Yes,I do.                      Does+主语+动原+其它？No,he doesn’t.         特殊疑问举例 ：What do you often do on Sundays?                           Where does he live?               注意： start,leave,go,come等的一般现在时可表示按  规定要发生的未来动作，如列车将离开。客观真理在从句中也用一般现在时                                                                                                                                                                                             现在进行时                用法：说话时正在进行的动作或当                        前一段时间正在进行的动作        常用时间状语 ：now,these days         动词构成 ：   am/is/are+现在分词(--ing)        am/is/are working        否定构成 ： am/is/are+not+现在分词         一般疑问构成及简答：Am/Is/Are+主语+现在分词                           + 其它？Yes,I am(he is.) No,they aren’t     特殊疑问举例：What are you doing now?                                     Who is flying a kite there?        注意：go,come,leave.arrive,return,die等的进 行时                      有时表示即将发生的动作。                                                                               * *    用法：将来会出现或发生的动作 常用时间状语：this evening,tomorrow,next   month, in a few  minutes,at the end of this term动词构成: 1,will/shall+动原    2,am/is/are going to+动词原型                   3,sm/is/are(about)+动词不定式                  4,am/is/are+coming等现在分词以work为例:will/shall work          am/is/are going to work     am/is/are(about) to work      am/is/are coming/leaving… 否定构成：will/shall not…                am/is/are not…特殊疑问句举例:What will you do tomorrow?                              When are we going to have a class meeting? 备注：在if条件或as soon as等时间状语从句中用一般现在时代替一般将来时。        用法：过去时间发生的或过去经常性的动作常用时间状语：yesterday,last night,two days ago,                        in 2000,at that time,before liberation，when                         等引导的含  过去时的句子。动词构成：动词过去时（--ed）   worked/used to work 否定构成：didn’t+动原    didn’t work    used not(didn’t use) to work一般疑问构成及简答举例：Did+主语+动原+其它？     特殊疑问句举例：What did he do yesterday?                                     When  did he get up this morning?  备注：He has opened the door.（表示过去“开门”的动作对现在的影响是门还开着）He opened the door.(不能确定门现在是否开着)                                              用法: 1、发生在过去的动作且对现在仍有影响的动作，          强调对现在的影响.2、从过去一直延续到现在的动作常用时间状语：already,just,never,before,recently,in                    the past few years,ever,so far,since+过去的点时                  间,for+段时间动词构成：have/has+过去分词(--ed)       have/has worked 否定构成：have/has not+过去分词 一般疑问构成：  Have/Has+主语+过去分词…? 特殊疑问句举例：What have you  done recently?                                How long has he lived in Beijing? 备注：暂时性动词不能与for…, since…,How long…等                         表示段时间 的短语同时使用。                                用法：过去某一时刻或某一段时间内正在发生 的动作常用时间状语：at this time yesterday,at that time,                         at ten o’clock yesterday或when引导的从句动词构成： was/were+现在分词(--ing) 以work为例：was/were working 否定构成： was/were not+现在分词一般疑问构成及简答举例:        Was/Were+主语+现在分词+其它？                Yes,I  was         No,I wasn’t特殊疑问句举例：         What were you dong this time yesterday?            Where was he standing when the teacher came in?   用法：从过去某时间来看将要发生的动作或状态，             常用于宾从常用时间状语：the next week等动词构成： 1、would/should+动原                     2、 was/were going to+动原