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Unit 1 Past and present Grammar: present perfect tenseA现在完成时的一些标志词Already; yet; ever; never; just; recently; since; for; up to now; so far; in/over/during the past few years/days/weeks/months/seasonsB since+时间点；for +时间段C 规则的变化1 以不发音的e结尾的单词，直接加d2 以辅音字母加y的动词，变y为i, 再加ed3 以元音字母+辅音字母的重读闭音节，双写该辅音字母再加edD 不规则中的规律变化相似的变化1 Come came; come become; became; become2 take took; taken; mistake; mistook; mistaken; shake shook shaken;3 stand; stood; stood understand; understood; understood4 Sell sold sold tell told told5 Say said said lay laid laid pay paid paid6 Think thought thought bring brought brought Fight fought fought buy bought bought7 teach taught taught catch caught caught8 do did done go went gone Be was/were been see saw seen9 blow; blew; blown; grow; grew; grown; throw; threw; thrown; know; knew; known10 draw; drew; drawn ; Drive drove driven; write wrote written give gave given; drive drove driven ride rode ridden; rise; rose; risen fall fell fallen;11 wake woke woken speak spoke spoken break broke broken; choose chose chosen; steal stole stolen; forget forgot forgotten;12 lend lent lent; spend spent; spent send sent sent build built built burn burnt burnt ;13 keep; kept, kept; sleep slept slept;14 Ring rang rung; sing sang sung;15 smell smelt smelt spell spelt spelt16 dream dreamt dreamt; mean meant meant17 feel felt; felt leave left leftAAA: cost; cut; hit; hurt; let; put; set; shut;ABB: build; built; burn burnt; /burned dig; dug; dream dreamt;/dreamed; feed; fed; feel felt; find; found get; got; hang hung; get; got; have had; hear heard; hold held; lay laid; lead led; lend lent; light; lit;/ lightedLose lost; make made; meet met; ....一、根据句意，用括号中所给单词的正确形式填空1 ______ you ever______ (travel) to Hainan Island by ship?2 --Would you like some cakes?---No, thank you. I ______ just ______(have) my lunch.3 He____________ (not come) yet. What do you think has happened to him?4 Tom _________(be) here for half an hour since he _______() here.5 I _________already_________ (teach) him how _________ (drive) a car.6 A: _________you_________ (find) your watch?B: Yes, I_________.A: When _____ you ______ (find) it?B: Just now.7 My family___________ (live) here for five years.8 --Is the little baby in this photo me, Dad?--It is. And now you ____________ (grow) into a young man. Where does the time go, huh?9 They____________ (not wait) for me for a long time.10 --Where is my English book?--Lily_________ just_________ (take) it away.Keys: 1 Have, travelled; 2 have, had; 3 hasn’t come 4 has been, came 5 have, taught, to drive 6 Have, found, have, did, find; 7 have lived 8 have grown; 9 haven’t waited 10 has, taken二、句型转换1 My father was a teacher in the past.My father________ _______ _______ a teacher.2 He has been here for two weeks.He has been here ________ two weeks ________.3 Mark returned to his country after he finished university abroad.Mark ________ ________ to his country after he finished university abroad.4 He doesn’t live here any longer.He________ ________ ________here.5 I miss my old friends sometimes.I miss my old friends ________ ________ ________ ________.Keys: 1 used to be; 2 since, ago; 3 came back; 4 used to live 5 from time to time三、单选选择1 --Hi, Lily! Why don’t you go swimming with them?--Because I ______ my homework yet.A didn’t finishB won’t finishC haven’t finishedD don’t finish2 --______have you been away from your hometown, Janet?--Since 5 years ago.A How manyB How longC How muchD How often3 --Look at the blue sky! The train ______.--Let’s go out for a walk.A stopsB will stopC has stoppedD had stopped4 Something ____ in our hometown since 2014. Now it _____ very modern.A is changed; is lookedB has changed; looksC changed; looksD has changed; look5 --When ____ you _____ your breakfast this morning?--At 6:00.A have; hadB did; haveC are; haveD has; had6 They have never been to the Kowloon Walled City ______.A alreadyB overC beforeD just7 Prison Break 《越狱》is the best American TV play that I ________ these years.A watchB will watchC have watchedD was watching8 --Have you seen the film?--No, I have ______ seen it before.A justB everC neverD already9 Actually, I have already been _________ him for two years.A married withB marry withC married toD marry10 It’s nice to see you again. We _____ each other since 2014.A won’t seeB don’t seeC haven’t seenD didn’t see11 After dinner, he used to ____ computer games, but now he gets used to ____.A play; walkB playing; walkingC play; walkingD playing; walk12 --Would you like to see the movie Zootopia with us?--I’d love to! But I _____ it.A sawB seeC will seeD have seen13-- So you gave her your mobile phone?--_____. She said she’d return it to me after she had hers fixed.A My pleasureB Not exactlyC With pleasureD No problem14 In the past few years, great changes _____ in Lianyuanggang.A take placeB took placeC have taken placeD have been taken place Keys：1-5 CBCBB 6-10 CCCCC 11-13 CDBC。
