各种时态的区别.doc

各种时态的区别 动词的过去、现在和未来 动词时态一览表 下面，我们来看看各个时态的用法： 一般过去时 用法索引 1.在确定的过去时间里所发生的动作或存在的状态。 时间状语有：yesterday,last week,an hour ago,the other day,in 1982 等。 Where did you go just now? 2.表示在过去一段时间内，经常性或习惯性的动作。 When Iwas achild,I often played football in the street. 特殊句型(需重点掌握) 1.It is time for sb.to do sth.到…时间了、该…了 2.It is time sb.did sth.时间已迟了、早该…了 It is time for you to go to bed.你该睡觉了。 It is time you went to bed.早该睡觉了。 3.would(had)rather sb.did sth.表示宁愿某人做某事 Id rather you came tomorrow. 请你注意：一般过去时的时间状语应该是表示过去某个时间的词或词组，如：yesterday,last month,in 1999,two days ago等，绝对不可与recently,in the past 10 years,this month等连用，因为这样的时间状语都与现在有关系，应该用现在完成时或一般现在时。 过去进行时 用法索引 1.表示过去某个时刻或某一阶段正在进行的动作.构成：be(was,were)+现在分词，常用的时间状语：at 10：30 last night,this time yesterday evening Eg1.What were you doing at three oclock yesterday afternoon? 2.用于when,while引导的时间状语从句中。用过去进行时表示较长的动作.过去进行时可用于主句，也可用于从句。 Eg1.I was doing my homework when someone knocked at the door. Eg2 We were walking along the river when suddenly it rained. Eg3 While he was waiting at the bus stop,the traffic accident happened.(While后的分句必须用进行时) Eg4.While Iwas reading,my sister was sleeping.(表示对比,都用进行时) 3.用于表示过去将来的动作。常用在间接引语中。 Eg1.She was leaving early the next morning. Eg2.I asked him whether he was coming back for dinner. 过去将来时 用法索引 1.过去将来时表示从过去的某一时间来看将要发生的动作或存在的状态.它常用于宾语从句中. 有两种构成形式：用would表示的过去将来时和用be(was/were)going to表示的过去将来时。 Eg1.He told me he would go to Beijing. Eg2 He said the train was leaving at six the next morning Eg3.She said she was going to start at once. 过去完成时 用法索引 1表示过去某时开始，一直持续到另一时间和状态。即动作完成于某个过去时间之前。常用的时间状语：由by,before等词构成的表示时间的介词短语。过去的过去这种逻辑关系常通过上下文体现出来，而不一定受某个时间状语的限制。 We had not heard from him by the end of last year. 2.根据时态一致的原则，在从句中谓语动词要用过去完成时代替其他时态。 She said she had learned French for six years.构成 一般现在时 用法索引 1.经常性或习惯性的动作，常与表示频率的时间状语连用。 时间状语：every…,sometimes,at…,on Sunday Ileave home for school at 7every morning. 2.客观真理、客观存在、科学事实。 The earth moves around the sun. Shanghai lies in the east of China. 3表示格言或警句中。 Pride goes befor