现在完成时的基本用法.ppt

1、现在完成时的基本用法： 1 过去发生的动作对现在产生的影响或结果。 常与(not ) yet,just, never , already, ever, never, before , lately, recently, once, twice,so far等词连用。,I have just opened the door. Have you ever ridden the horse? I have never been to that farm before. Have you finished your work yet? I have finished the factory twice

2、. I have already forgotten it .,2. 表示动作从过去某一时刻开始一直延续到现在，往往和表示一段时 间的状语连用。如since1996, for three days, these days. Since 后面跟的是一段时间的起点，它引导的时间状语从句，主句为现在完成时，从句用一般过去时。 for后面跟的是一段时间。,They have lived there since 1996. They have lived there since they worked there. Mr Smith has taught in our school for three

3、years/since three years ago.,ever, yet常用于疑问句和否定句。already多用于肯定句。,3. 现在完成时与一般过去时的区别:,现在完成时着重说明过去的某一动作对现在的影响和结果,强调的是与现在的联系,而一般过去时着重说明过去的动作和状态,和现在不发生联系.,He has bought a book. He bought a book yesterday. She has been ill. She was ill two days ago.,现在完成时与包括现在时间在内的时间状语连用，不与单纯表示过去的时间状语连用。而一般过去时与表示过去具体的时间状语连

4、用。 They have lived here for three years. They lived here three years ago. She has been in Fuzhou since 1996. She was in Fuzhou in 1996.,短暂性动词的现在完成时不能 和表示一段时间的状语连用。,I bought this book two weeks ago.,I have had this book for two weeks,How long have you had this book?,I have bought this book.,buyhave b

5、orrowkeep die be dead becomebe leavebe away breakbe broken openbe open joinbe in closebe closed beginbe on losebe lost comebe here get upbe up,been to /gone to / been in,1.- How long you Hangzhou, Li Hong? -For about four years. - What about your brother? - He Hangzhou for only one year. - Where is

6、he now? - He Beijing. - he ever Beijing before? - Yes, twice.,have,been,in,has,been,in,has,gone,to,Has,been,to,2. Li Jun, where you these days? - I Beijing, Didnt my sister tell you ? - Oh, yes. I forget. Are your parents with you now? - No, they Hebei, my hometown.,have,been,have,been,to,have,gone,

7、to,“How long _ you _ (be) here?” “ I _ (be ) here for only a year.” 2.Its seven. They _ (already , have ) supper. 3.She isnt here .She _ (go ) to the city. 4.We _ ( live) in the city since 1980. 5.He _ (be) to America twice.,have,been,have been,have already had,has gone,have lived,has been,Are you s

8、ure you _ (lose) the book? -Yes. I _(look) for it everywhere, but I still cant find it. 2. -_you _(take) the medicine yet? -Yes. I _( take)it half an hour ago. 3. I _(never, meet) her sister before. 4. He _(just, watch) a football game. He is so tired and hungry.,5. _ you ever _ (travel) on a train? 6. - _WeiFang _(come) yet? - Yes. She _ (come) already. - When _ she_(come)? - She _(come) just now. 7. How many times_you _ (read) this book? - I _(read) it several times.,8. I _(read) only two pages of this book. 9. how long _you