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1、Unit 9,Yoyo NO.41 Middle School,现在完成时has/have done,定义,现在完成 时态,结构,标志词,例题,头脑风暴,present(now),future,past,用法一、从过去开始的某一动作持续到现在，还有可能继续持续下去。（常以for、since+时间为标志）,现在完成时的定义:,have/has+done动词过去分词,现在完成时的结构,规则动词的原形、过去式、过去分词,4、stop _ _ plan _ _,3、study _ _ carry _ _,2、live _ _ arrive _ _,1、talk _ _ finish_ _,talked
2、 talked finished finished,(1)直接+“ed”,lived lived arrived arrived,(2)直接+“d”,studied studied carried carried,(3)变“y”为i+“ed”,stopped stopped planned planned,(4)双写+“ed”,不规则动词的原形、过去式及过去分词1 do-_-_2 catch-_-_3 tell-_-_4 stand-_-_5 get-_-_6 hurt-_-_7 put-_-_8 come-_-_9 run-_-_10 begin-_-_11 swim-_-_12 draw-
3、_-_13 know-_-_14 do-_-_15 go-_-_,16 give-_-_17 see-_-_18 drive-_-_19 take-_-_20 be-_-_21 eat-_-_22 write-_-_23 speak-_-_24 steal-_-_25 tear撕开-_-_,did done,caught caught,told told,stood stood,got got,hurt hurt,put put,came come,ran run,began begun,swam swum,drew drawn,knew known,did done,went gone,ga
4、ve given,saw seen,drove driven,took taken,was,were been,ate eaten,wrote written,spoke spoken,stole stolen,tore torn,Please remember them.,不规则动词的过去式以及过去分词,teachtaughttaught ABB,巧记规律,becomebecamebecome ABA,put put put letlet let AAA,eat ateeaten ABC,AAA,cost-cost-cost read-read-readput-put-put cut-cut
5、-cutlet-let-let set-set-set设置 hit-hit-hit 击打 hurt-hurt-hurt,规律：结尾字母一般是t或d。特殊：read-read-read ri:d-red-red。,run-ran-runcome-came-come become-became-becomeovercome-overcame-overcome克服,ABA,规律：中间元音字母的变化,ABB(含规则动词),sit-sat-sat win-won-won shine-shone-shone hold-held-held find-found-found hang-hung-hung ov
6、ersleep-overslept-overslept睡过头,规律：改变单词中间元音字母,ABC,take-took-taken give-gave-givenfall-fell-fallen eat-ate-eatenwrite-wrote-written speak-spoke-spokenfreeze-froze-frozen结冰 ride-rode-ridden get-got-gotten forget-forgot-forgotten,规律：有的在原形词尾加n或en，变成以en结尾的单词。,特殊：am/is-was-been are-were-been,do(does)-did-d
7、one go-went-gonesee-saw-seen show-showed-shown(showed)lie-lay躺(lied撒谎)-lain(lied),Who has the best memory?比比谁的记性好,ABBbuild-built-builtbring-brought-broughtfind-found-foundhave-had-hadlose-lost-lostteach-taught-taught meet-met-met,ABCam/is-was-beenare-were-beeneat-ate-eatendo-did-done go-went-gonesee
8、-saw-seenknow-knew-known,AAAread-read-read ri:d-red-red,ABBbuild-_-_bring-_-_find-_-_have-_-_lose-_-_teach-_-_meet-_-_,Who has the best memory?比比谁的记性好,ABCam/is-_-_are-_-_eat-_-_do(does)-_-_ go-_-_see-_-_know-_-_,AAAread-_-_ ri:d-red-red,Who has the best memory?比比谁的记性好,ABBbuild-built-builtbring-broug
9、ht-broughtfind-found-foundhave-had-hadlose-lost-lostteach-taught-taughtmeet-met-met,ABCam/is-was-beenare-were-beeneat-ate-eatendo(does)-did-done go-went-gonesee-saw-seenknow-knew-known,AAAread-read-read ri:d-red-red,ABBlose-_-_teach-_-_find-_-_bring-_-_meet-_-_have-_-_build-_-_,Who has the best memo
10、ry?比比谁的记性好,ABCknow-_-_see-_-_go-_-_do-_-_ eat-_-_are-_-_am/is-_-_,AAAread-_-_ ri:d-red-red,写出下列动词的过去式及过去分词1 read_-_2 bring_-_3 find _-_4 have_-_5 lose _-_6 teach_-_7 meet_-_,8 am/is_-_9 are_-_10 eat_-_11 do_-_12 go_-_13 see_-_14 know_-_,read read,brought brought,found found,had had,lost lost,taught
11、taught,met met,was been,were been,ate eaten,did done,went gone,saw seen,knew known,for“经历(段时间)”since“自从以来”for段时间 since点时间 since段时间ago=for+时间段 since从句，过去时,1.Wehavestayedherefor2hours.since2hoursago.since10oclock.2.We havelearnedEnglishsincehecamehere.,现在完成时的标志词,I have taught for 13 years.=I have taug
12、ht since 2003.,用for和since填空。,_three hours_three oclock_two days_yesterday_I came here_last Sunday,_a week_a long time_1997 _two weeks_three years ago _ last month,for,since,for,since,since,since,for,for,since,for,since,since,小试牛刀,for段时间 since点时间 since段时间ago=for+时间段 since从句，过去时,小试身手,翻译下列句子：,1、我已经学了5年
13、的英语。2、我已经在新疆住了14年。3、我已经认识我的好朋友2年了.（用since造句）,I have lived in Xinjiang for 14 years.,I have known my best friend since 2 years ago.,present(now),future,past,Mum,I have already(已经)cleaned them.,John,clean your teeth please.,2、表示过去发生或已经完成的某一动作对现在造成的影响或结果。（常以already,yet为标志。）.,现在完成时用法二：,Have you watched
14、this movie?,Yes,I have already watched it.(已经看过了),No,I havent watched it yet.（还没看过）,Have you read Little Women小妇人?,Yes,I have already read it.,No,I havent read it yet.,clean your room(cleaned),finish your homework(finished),Have you?Yes,./No,.,Pairkwork,teach him English(taught),lose your key(lost),
15、talked on the phone for an hour,play soccer,Has he/she?Yes,has./No,hasnt,played football,eat(eaten)potato chips,see(seen)a tiger,现在完成时,构成,用法,常用状语,have+done动词过去分词has+done,1.从过去一直到现在，还有可能持续下去.2.强调完成，对现在有影响.,ever,already,yet,for，since,summary,1.I have learned English for 5 years.我已经学了5年英语。2.We have kno
16、wn each other since 2 years ago.我们彼此相识2年了。3.Winter has already come,will it still be far in spring?冬天已经来了，春天还远吗？,Learn it by heart背诵好句,学会了吗,考考你吧,小二，上习题,1.I _(wait)for him for two hours.I am very angry.2.He _(be)a doctor since he was twenty.3.The film _(be)on for fifteen minutes.4._ you ever _(read)t
17、hat book before?5._ you ever _(try)to change her?6.No one _(arrive)here yet.7._ the bus _(leave)yet?8.I _(not talk)to him yet.,Havent talked,Has left,has arrived,Have tried,Have read,has been,has been,have waited,用所给动词的适当形式填空,9.I_already_(see)thefilm.I_(see)itlastweek.11.Myfather_just_(come)backfrom
18、work.Heistirednow.12.Thestudents_(read)Englishwhentheteachercamein.13.I_(work)heresinceI_(move)herein1999.14.SofarI_(make)quiteafewfriendshere.15.Howlong_theWangs_(stay)here?Fortwoweeks.16.I_just_(finish)myhomework.17.He_(go)toschoolonfooteveryday.18._you_(find)yoursciencebookyet?,were reading,moved
19、,have worked,have made,goes,have stayed,have finished,Have found,saw,have seen,has come,He has gone to Shanghai.他(已经)去上海了。,He has been to Shanghai.他(曾经)去过上海。,比较 have/has been to have/has gone to,He went to Shanghai last week.,他(曾经)到/去过上海 在他人生中曾经有过这样的经历,但他人现在肯定不是在上海而是回来了,他已经去上海了 也许刚动身出发,也许已经到了,也许还在路上
20、,反正他人不在这里,上周他做了一件事:那就是去了上海,He has been to Shanghai.,He has gone to Shanghai.,He has been in Shanghai for 10 years.,他呆在上海迄今为止已经10年了 现在还在上海没有离开呢,辨析这些句子由时态导致的含义上的差别,My parents the Great Wall twice.-you ever Xiamen?3.How long Peter the park?4.My sister the shop.She will be back in two hours.5.She Shangh
21、ai.She isnt here.6.She Shanghai for two years.,has gone to,have been to,Have,been to,has,been in,has gone to,has been in,练一练：用have been to,have been in,have gone to填空。,四、正确运用have/has been to,have/has gone to,和have/has been in 三种结构。,.have/has been to表示“过去曾去过某地”，但现在已经回来了。,.have/has gone to表示“已去了某地”，现在还没有回来。,.have/has been in 表示“已在某地（呆了多久）”，如果是小地方用at代替in。,2023/1/6,34,
