八年級_現(xiàn)在完成時復習(共26張)

1、現(xiàn)在完成時現(xiàn)在完成時 復習復習 課前延伸 自主復習現(xiàn)在完成時態(tài)語法內(nèi)容 課前小檢測 寫出下列各詞的過去分詞stop_buy_catch_ tell_bring_ live_drive_eat_ find_think_ study_forget_fly_ give_speak_ visit_swim_write_ make_leave_stopped caught boughtthought told brought lived driven eaten found studied forgot flown given spoken visited swum written made left

2、1. 規(guī)則動詞：與過去時變化相同。(1) 一般+-ed work-worked-worked(2) 以“ e ”結(jié)尾, + - d 。 live-lived -lived(3) “輔音字母 + y” 結(jié)尾，y 變 i, + -ed。 cry-cried-cried(4) 重讀閉音節(jié)結(jié)尾(輔元輔)，雙寫后+-ed 。 drop-dropped-dropped 2 、不規(guī)則動詞，見不規(guī)則表（p122）動詞動詞過去分詞過去分詞 變化規(guī)則變化規(guī)則 課堂探究 自主回憶、討論現(xiàn)在完成時態(tài)的用法： 現(xiàn)在完成時與一般過去時的區(qū)別 表示過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果。表示過去已經(jīng)開始,一直延續(xù)到

3、現(xiàn)在的動作或狀態(tài)。1）現(xiàn)在完成時現(xiàn)在完成時與現(xiàn)在有聯(lián)系，它表示過去的動作對現(xiàn)在所產(chǎn)生的結(jié)果、影響。一般過去時一般過去時通常表示在過去某一具體時間發(fā)生的動作，與現(xiàn)在沒什么聯(lián)系。2）現(xiàn)在完成時現(xiàn)在完成時表示過去延續(xù)到現(xiàn)在的行為；一般過一般過去時去時著重過去某一時刻的某一具體動作。I have bought a new computer. 我買了一臺新電腦。(著重點是我現(xiàn)在有了一臺新電腦) I bought a new computer yesterday. 我昨天買了一臺新電腦。(強調(diào)的是我買新電腦的時間是昨天)I have seen the film. 我看過這部電影。(現(xiàn)在我仍記得電影的內(nèi)容)

4、 I saw the film three days ago. 三天前我看了這部電影。(強調(diào)是三天前,而不是別的什么時候看的電影) 達標小檢測 1 He _ our school for 2 weeks A、left B、has left C、have left D、has been away 2 Harry Potter is a very nice film . I_ it twice . . will see . have seen .saw .see 3 His father _ the Party in 2008 . joined . has joined . was in . ha

5、s been inDBA 自主回憶、討論其構(gòu)成及句式特點： 否定式: 疑問式: 簡略答語:構(gòu)成: 肯定式：主語 +have/has + 過去分詞+ 其他。(當主語是第三人稱單數(shù)時用has。)主語 + havent/hasnt + 過去分詞 + 其他。Have /Has + 主語 + 過去分詞 + 其他?Yes, 主語 + have/has.(肯定)No, 主語 + havent/hasnt.(否定) 達標小檢測達標小檢測 Jim finished his homework (改為現(xiàn)在完成時) We have visited Beijing（改為否定句和疑問句并做肯定,否定回答） Jim has

6、 finished his homeworkWe havent visited Beijing.Have you visited Beijing?Yes, we haveNo,we havent. 小組內(nèi)交流“如何判定現(xiàn)在完成時態(tài)”，組長負責總結(jié)。 現(xiàn)在完成時的含義之一是過去完成的動作對現(xiàn)在仍有影響,用以下四大標志詞可以表達這種含義: 以already, just和yet為標志 以so far為標志 以ever和never為標志 以動作發(fā)生的次數(shù)為標志以以already, just和和yet為標志為標志 already, just和和yet 表示到現(xiàn)在為止動作或狀態(tài)表示到現(xiàn)在為止動作或狀態(tài)已經(jīng)

7、、剛剛或還沒有發(fā)生。已經(jīng)、剛剛或還沒有發(fā)生。 He has already got her help.他已得到她的幫助。他已得到她的幫助。He has just seen the film.他剛剛看過這場電影。他剛剛看過這場電影。He hasnt come back yet.他還沒有回來。他還沒有回來。以以so far為標志為標志so far往往表示到目前為止動作或狀態(tài)已經(jīng)發(fā)往往表示到目前為止動作或狀態(tài)已經(jīng)發(fā)生。生。He has got to Beijing so far.到目前為止他已到了北京。到目前為止他已到了北京。She has passed the exam so far.到目前為止到

8、目前為止她已經(jīng)通過了考試。她已經(jīng)通過了考試。 以ever和never為標志 ever和never 表示到現(xiàn)在為止動作或狀態(tài)曾經(jīng)或從來沒有發(fā)生過。 This is the best film I have ever seen.這是我曾經(jīng)看過的最好的一部電影。 He has never been to Beijing.他從沒有到過北京。以動作發(fā)生的次數(shù)為標志以動作發(fā)生的次數(shù)為標志若某一動作到現(xiàn)在為止已經(jīng)發(fā)生了若干次若某一動作到現(xiàn)在為止已經(jīng)發(fā)生了若干次,則要則要使用現(xiàn)在完成時。使用現(xiàn)在完成時。He says he has been to the USA three times. 他他說他已經(jīng)去過美國

9、三次了。說他已經(jīng)去過美國三次了。 達標小檢測 1 -We have finished it. -No,not_. . already ；already . yet; yet . already；yet . yet ; already 2 Have you_ been to the farm？ . already .never .ever . still 3 He has _ been to Shanghai , has he ? already .never .ever . still 精講點撥 have / has gone to 與have / has been to的區(qū)別 have go

10、ne to表示某人“已經(jīng)去某地了”，說話時此人可能在路上或已到那里，反正不在這里。 如：Where is Jim？ 吉姆在哪里？ He has gone to England. 他去英國了。（尚未回來） Mr. Wang isnt hereHe has gone to Qingdao. 王先生不在這里。他去青島了。 have been to 意為“曾經(jīng)去過某地”，現(xiàn)在已不在那里了，后可接次數(shù)，如once，twice，three times等，表示“去過某地幾次”，也可和 just，never，ever等連用。 如： My father has been to Beijing twice. 我父

11、親去過北京兩次。 I have never been to the Great Wall. 我從未去過長城。 達標小檢測 1 He _Beijing.He has been in Beijing for two days. A. has been to B. went to C. has gone to D. has gone 2 How many times _you _the Great Wall? A have , been to B have ,gone to C did,go D do ,wentC A 3 Toms mother has_ twice.A、been to abroa

12、d B、went abroad C、gone to abroad D、been abroad 4 My parents _ Shandong for ten years . . have been in . have been to . have gone to . have beenDA 時間“點”、“段”須分清 過去開始的動作可以延續(xù)到某一點結(jié)束,也可能繼續(xù)延續(xù),這時就要根據(jù)時間“點”、“段”選擇相應的介詞for或since。 for +一段時間 for a year for two weeks for three yearsSince 過去的某一時刻過去的某一時刻, since nine

13、 since last week 一般一般過去時態(tài)過去時態(tài)的時間狀語從句的時間狀語從句 since you came since you got home.He has been away since last week.He has been away for one week.對劃線部分提問都用對劃線部分提問都用How long 達標小檢測達標小檢測(for或或since) 1._two years 2._two years ago 3._last month 4._ 1999 5._yesterday 6._4 oclock 7. Ive known him _ we were chil

14、dren.forsincesincesincesincesincesince 8 Our teacher has studied Japanese _ three years. 9. She has been away from the city _ about ten years. 10 Its about ten years _ she left the city.sinceforfor “終止”、“延續(xù)”要轉(zhuǎn)換 英語中的動詞從詞義上可以分為延續(xù)性和非延續(xù)性兩種,在現(xiàn)在完成時態(tài)中一定要注意動詞這一特性,應將這類非延續(xù)性動詞轉(zhuǎn)換為延續(xù)性動詞。 關于瞬間動詞的記憶口訣 現(xiàn)在完成在瞬間；非延只連

15、時間點；終止需轉(zhuǎn)換；否定方可碰一段。 注：1.瞬間動詞又叫非延續(xù)性動詞，還叫終止性動詞。瞬間動詞可以有現(xiàn)在完成時態(tài)， 但不可以接一段時間，若要接一段時間，須要做一些相應的變換。 2.瞬間動詞在完成時態(tài)中的否定式可以接一段時間。 通常將短暫性動詞轉(zhuǎn)換成延續(xù)性動詞，如 reach/come/arrivebe here/be in, begin/startbe on, diebe dead, open/closebe open/closed , fall illbe ill, catch a coldhave a cold, buyhave, come backbe back, go outbe o

16、ut, borrowkeep, get upbe up, lose the jobbe out of the job, fall asleepbe asleep, stopbe over, leave/movebe away/be out of, joinbe in/be a member等 如: (誤) Li Ming has bought the book for three days. (正) Li Ming has had the book for three days. (誤) My father had joined the Party ten years ago. (正) My father has been in the Party for ten years. 達標小檢測達標小檢測 1 He has died for 20 years. 應改為: 2 The factory has opened since 2007. 應改