英语中常见的八种时态ppt课件.ppt
英 语 中 常 见 的 八 种 时 态 一、一般现在时用法: 现阶段经常性、习惯性动作;目前的状现阶段经常性、习惯性动作;目前的状态;客观真理态;客观真理结构:结构:主语主语+动词原形动词原形(注意注意:主语是主语是三人称单数三人称单数,谓语动词要加谓语动词要加s或或es)常用时间状语常用时间状语: always, sometimes,every day, usually, often, on Monday, in the morning, once a week.例句: We usually have sports after school in the afternoon.My father often goes to work by bike. 二、一般过去时用法用法:表示表示过去过去某个时间里发生的某个时间里发生的动作或状态动作或状态结构结构:主语主语+动词的过去式动词的过去式常用时间状语常用时间状语:yesterday,two days ago,just now,last week,used to.例句例句:Lin Tao was in the library a moment ago.We went to the park last Sunday.三、一般将来时用法用法:表示表示将来将来发生的发生的动作动作或或存在的状态存在的状态结构结构:1.助动词助动词will(shall)+动词原形动词原形2.be going to+动词原形动词原形常用时间状语:常用时间状语:tomorrow, next week, in two days,soon.例句They are going to have a meeting soon.We will go to the park if it doesnt rain tomorrow.注意:注意:1.短暂性动词如:come, go, leave,arrive等的现在进行时可以表将来现在进行时可以表将来e.g: Im coming to help you. when, until, as soon as, before,等引导的时间状语从句和If引导的条件状语从句中,从句要用一般现在时表将来e.g:As soon as it stops raining,I will go shopping.四、过去将来时用法用法:表示从过去某一时间从过去某一时间来看将要发生的动作将要发生的动作或存在的状态或存在的状态结构结构:1.would +动词原形2.was/were going to +动词原形常用时间状语常用时间状语:The next day ,the next year,that morning例句:例句: Lucy said that she would go to visit her grandparants next Sunday.五、现在进行时用法用法:表示说话时或现阶段正在进行的动作表示说话时或现阶段正在进行的动作结构结构:am/ is/ are +现在分词现在分词常用时间状语常用时间状语: now, at present ,look,listen 例句:例句:Listen!The birds are singing in the tree.六、过去进行时用法:用法:表示表示过去某一阶段过去某一阶段或或时刻正在进行的动作时刻正在进行的动作结构结构:was/were +现在分词现在分词常用时间状语常用时间状语:at five yesterday, last night, when., while., 例句:例句:I was doing my homework at eight last night.七、现在完成时用法:用法: 表示过去发生的动作对现在造成的影响表示过去发生的动作对现在造成的影响或结果;表示从过去开始延续到现在的或结果;表示从过去开始延续到现在的动作或状态动作或状态结构:结构:have/has+过去分词过去分词常用时间状语:常用时间状语: already, yet, ever, never, just, for ten years,in the past 5 years.例句:例句:I have kept the book for three weeks.Mr Brown has gone to China.Mr Brown has been to China twice.(注意注意:have been to 曾去某地曾去某地 have gone to已去某地已去某地)八、过去完成时用法:用法:表示过去的过去;表示从过去某一时间开始持续到另一时间为止的动作或状态;常用在主从复合句中结构结构:had+过去分词过去分词常用时间状语常用时间状语:by eight last night;by the end of last year例句:例句:The film had been on for ten minutes before they got to the cinema.