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现 在 完 成 时 1.表示 1) 2) 2.其构成是 3.过去分词的变化分 4.否定句是 ，变一般疑问句是 。 E.g. I have ridden a horse. 变否定句 变一般疑问句 5.时间状语通常为 用于肯定句 用于否定句 用于疑问句 用于否定、疑问句 用于肯定、否定、疑问句 ※现在完成时连用的一段时间表示法： 1)for + 2)since+ 3)It’s + 一段时间 + since +一般过去时句子 4)It has been+ 一段时间 + since +一般过去时句子 ※延续性动词与短暂性动词 buy borrow arrive leave join die come/go begin/start stop/finish open close get a letter catch a cold get up wake up fall ill get to know become interested in 1)She has left (离开) for 2 hours.(×) 2)Mary入团已三年了。 3)他爷爷去世多久了? 4)电影已经开始20分钟了。 5) 这台电脑你买了多久了? ※have been to spl. have gone to spl. have been in spl. 1) David Shanghai for more than three months. 2) Where’s your parents? They Shanghai. 3) How many times you Shanghai? Never. I.选择 1. ( )1. I have finished my homework ____. Have you finished your homework ____? A. yet, yet B. yet, already C. already, yet D. already, already 2. ( )He has ____ seen the film Harry Potter. So he knows nothing about it. A. already B. ever C. never D. yet 3. ( )The rain was heavy, so I get home until 9:00 pm. A. had to B.didn't have to C. have D. must 4. ( )- have you been here? -3 years. A. How often B.How long C.How far D. How 5. ( ) I who he was they told me. A./, until B. not, until C. don’t know, until D. didn't know, until 6.( ) -May I go to play tennis with you, Dad? - you your composition yet? A.Are, finishing B.Did, finish C.Will, finish D. Have, finished ★7. ( )They each other for at least two months. A.haven't seen B. have seen C. haven't been seen D. didn’t see 8. ( ) I to see my childhood friends last summer vacation. A.went back B. shall go back C. have gone back D. have been back 9. ( ) He a great deal since he joined the army. A.learn B. learned C. has learned D. is learning 10. ( ) Mr Huang to Kunming. He'll come back in two weeks. A.goes B. went C. has gone D. go (责任编辑：admin) |