( 1 . 7B U3 同步复习 ) ( Presentation ) (3) 7B U3知识点整理 现在完成时(have done/has done) 现在完成时用来表示对目前状况仍有影响的、刚刚完成的动作（常与yet, already, just连用）， 或者过去某一时刻发生的、持续到现在的情况（常与for, since连用） 例如： I have just finished my homework. Mary has been ill for three years. 常与现在完成时连用的时间状语有：since, for等引导的短语；副词already, yet, just, ever, recently 等；状语词组so far, many times等。例如： So far, she hasn’t enjoyed the summer vacation. There have been a lot of changes since 1978. 在since后，我们使用“时间点”例如： since 1997 since two years ago 在for后，我们使用“时间段”。例如： for quite a few years for a long time 对存在since与for的现在完成时句子的时间状语提问的时候，我们使用“how long”，而且其中 的动词应该是持续性动词。 She has been a teacher since 2004. He has had the book for several weeks. 非延续性动词 延续性动词 非延续性动词 延续性动词 buy have died be dead borrow keep catch a cold have a cold open be open put on wear close be closed get up be up begin be on wake up be awake start be on fall asleep be asleep come be here lose not have go be away join be in finish be over leave be away from ( Practice ) I. Choose the best answer. ( ) 1. He’s saved one million dollars _____ ten years ago. / B) since C) for D) already ( ) 2. It _____ seven years since he began to teach English here. is B) have been C) has D) is for ( ) 3. My father has been a policeman _____ 2000. for B) at C) in D) since ( ) 4. Where’s your mother She _____ to Japan, she _____ there twice before. has gone, has gone B) has been, has gone C) has gone, has been D) has been, has been ( ) 5. The Harry Potter books _____ pretty popular since they were published. become B) will become C) have become D) are becoming ( ) 6. Rose came to Beijing in 2002. She _____ here for eight years. was living B) live C) will live D) has lived ( ) 7. How clean the bedroom is! Yes, I am sure that someone _____ it. cleans B) cleaned C) has cleaned D) had cleaned ( ) 8. My brother left school in 2009, and since then he _____ in Shanghai. A) lives B) lived C) will live D) has lived ( ) 9. In the past five years there _____ great changes in my hometown. have been B) were C) had been D) are ( ) 10. Have you _____ been to the Great Wall just B) ever C) never D) seldom ( ) 11. _____ has your brother been an engineer For about five years. How far B) How much C) How long D) How often ( ) 12. Both his parents look sad. Maybe they _____ what’s happened to him. A) knew B) have known C) must know D) will know ( ) 13. He has _____ been to Shanghai, has he already B) never C) ever D) still ( ) 14. Have you met Mr Li _____ A) just B) ago C) before D) a moment ago ( ) 15. The famous writer _____ one new book in the past two years. A) is writing B) was writing C) wrote D) has written ( ) 16. We went on a trip to Hangzhou last summer. We _____ there for a week. A) stays B) stayed C) have stayed D) staying ( ) 17. Your teacher isn’t in the office. She ... ...
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