《种时态标志词》PPT课件.ppt

1、时态,2,常见八种时态 - 标志词,1、一般现在时 表示：现阶段经常发生的动作或存在的状态,We _ ( go) to school at six forty every day. My brother _ ( read) a book once a week.,go,reads,一般现在时使用注意事项： 主语是第三人称时，动词词尾要加 “ s ”或 “es” 表示 “习惯性的动作” 经常与下列副词连用： 3. 表示位置移动的动词，如 come , go , start , leave , arrive 等经常用一般现在时代替将来时，特别在固定的时间表中。 4. 在表示时间或条件的状语从句中，

2、也经常用一般现在时代替一般将来时。此类状语从句经常由下列连词引导：,表示时间：when , while , before , after , as soon as ,till ,表示条件：if , unless , in case ( = if ),注意：表示时间或条件之连词所引导的状语从句, 一律用一般现在时代替一般将来时；但如果when 及if 所引导的是名词性从句的话，则不在此限。 If it _ (rain ) tomorrow , Ill stay at home . He will be happy when he _ ( hear ) the good news . Tell m

3、e when he _ (arrive ). I dont know if he _ (come).,.,rains,hears,will arrive,will come,.,_,2、一般将来时 表示：将要发生的动作或存在的状态,1. 一般将来时常和下列表示将来的时间副词连用: tomorrow , next year ( week , month ) 2. 表示即将发生的将来也可用 be going to ( 将要/ 打算) 或 be about to ( 即将/快要) 来代替 will . It is going to rain . The train is about to start

4、 . ( 不与具体时间状语连用) 3. Be to + V 表示 “ 一定 ” He is to arrive tomorrow . 4. 表示 “开始” , “ 来, 去” 等动词常常用现在进行时表将来. He is coming here tomorrow .,3、一般过去时 表示：过去发生的动作或存在的状态,一般过去时经常和下列表示过去时间的副词连用：,注意动词不规则变化,4、现在进行时 表示：现在正在进行的动作,标志：now、Look! Listen! ,注意事项： 现在进行时经常和时间副词 now , right now , at present , at this moment 等

5、连用。 go , come , leave , start , return 等动词若与未来时间( 如 ： tomorrow , next week )表示“不久的将发生的动作”，可用“现在进行时”代替“ 一般将来时”,3 . always 和 constantly 与现在进行时连用时，不指正在进行，而指“反复发生”，有时含有不满的情绪。如： I am always forgetting peoples names . I am constantly being asked to make speeches . You are always sleeping in class .,The ea

6、rth _ ( move) round the sun . The leaves _ (move) in the wind and rain .,moves,are moving,5、过去进行时 表示：过去某个时刻正在进行的动作 标志：at six yesterday morning、from 7 to 9 yesterday morning 、this time yesterday、也可用在when和while引导的从句 He was taking a shower at 11 last night . They were cooking when the bell rang.(= Whil

7、e they were cooking, the bell rang.),6、现在完成时,注意事项： 1. 表示“ 现在刚完成之动作” ， 经常和下列副词连用：,2. 表示“经验” ， 经常和下列副词连用：,3. 表示“ 过去继续到现在的动作或状态” 经常与 for , since , all day 等连用。句型如下：,注意：此用法如果强调现在仍在进行，可用现在完成进行时，如 I have been studying English for five years . It has been raining since last night .,注意：表示瞬间动作的动词不能用 for + 一段

8、时间 He has died for three years . ( X ) He died three years ago . ( ) He has been dead for three years . ( ) It is three years since he died ( ),注：过去的经验，若时间不确定，用现在完成时，但若时间确定，则用一般过去时。 I have met him before . I met him two days ago .,_,_,现在完成时指动现在已经完成，但后果或影响仍然存在。一般过去时只限于表示过去的动作本身，与现在的结果无关。而现在完成时把过去的动作和

9、现在的结果联系起来，这是它们之间的主要区别。 He has given up drinking . ( 现在已经不喝酒了） He gave up drinking last month . （只说明上个月戒了酒，现在喝不喝酒不知道。）,7. 现在完成进行时 动词形态：have / has been + doing,- 现在仍在学,注：本时态用来叙述“从过去某时开始，一直延续到目前的动作”。其特点在强调“动作的延续” 。 Hes very tired ; he has been working hard all day . Have you been waiting for a long tim

10、e .,8、过去完成时-过去某个时间为标准，在此以前发生的动作或行为，或在过去某动作之前完成的行为，即“过去的过去”。 标志：before, by the end of last year(term, month),etc.,The train _ before we reached the station . He said he _ me three years before . I _him twice by yesterday.,had gone,had met,had met,1. When the speaker entered the hall, all the listener

11、s _(seat) . 2. The Anti-Japanese War _ (break out) in 1937 and it lasted eight years. 3 Unless he _ (promise) to help us, we shall lose the game. 4. You dont need to describe her. I _(meet) her several times. 5. Dont you know its the first time he _(attend) this kind of meeting. ,were seated,broke o

12、ut,promises,have met,has attended,6. This dictionary mustnt _ (take) away from the library. 7. We cant use the bridge now, because it _ (repair). 8. No permission _ (give) for anybody to enter the building. 9. Many bridges _ (build) over the river since liberation. 10. Old people must be looked afte

13、r well and _ (speak) to politely.,be taken,is being repaired,has been given,have been built,spoken,11. Dinosaurs _ (disappear) about 65 million years ago. 12. They _ (ask) to help the farmers with the harvest last autumn. 13. Every possible means _ (try), but none proves successful. 14. When I got t

14、o the theatre, I found the tickets _(sell out) and I didnt get one. 15 .They _ (wait) for the famous film star for two hours and they would wait until he arrived.,disappeared,were asked,has been tried,had been sold out,had been waiting,16. By the end of last year we _ (learn) at least 3,000 English words. 17. There _ (be) great changes in China in the