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1、写出下列不规则动词的过去式和过去分词写出下列不规则动词的过去式和过去分词 leadlearnleavelendletlielosemakemeanmeetThePresentPerfectTenseGrammar 现在完成时We use the simple past tense to talk about what happened at a definite time in the past.Past present Eddie was born four years ago.We use the present perfect tense to talk about things tha
2、t started in the past and still have some connection with the present.Eddie has lived with Millie since he was born.Eddie has lived with Millie for four years.presentPastPastpresent4 years现在完成时用法一：现在完成时用法一：A.现在完成时态表示动作开始于过去某一时刻，现在完成时态表示动作开始于过去某一时刻，一直延续到现在，或可能还要继续下去。一直延续到现在，或可能还要继续下去。e.g.1.He has liv
3、ed here since 1978.自从自从1978年以来，他一直住在这儿。年以来，他一直住在这儿。(动作起始于动作起始于1978年，一直住到现在年，一直住到现在,可能还可能还 要继续住下去。要继续住下去。)2.I have been in the army for more than 5 years.我在部队已经呆了五年多了。我在部队已经呆了五年多了。(动作开始于动作开始于5年前，一直延续至今，有可能还年前，一直延续至今，有可能还 要继续下去。要继续下去。)B.现在完成时态表示动作发生在过去某一时现在完成时态表示动作发生在过去某一时刻并已结束，但该动作对现在产生了影响，刻并已结束，但该动作
4、对现在产生了影响，与现在情况具有因果关系。与现在情况具有因果关系。e.g.1.He has turned off the light.他已把灯关了。他已把灯关了。(动作结束于过去，但说明的是现在的情动作结束于过去，但说明的是现在的情 况况-灯现在不亮了。灯现在不亮了。)2.She has cleaned the house.她已经打扫了屋子。她已经打扫了屋子。(动作是过去发生的，而对现在所造成的动作是过去发生的，而对现在所造成的 结果是屋子干净了。结果是屋子干净了。)现在完成时用法二：现在完成时用法二：1.Would you like to eat more chicken?No,thanks
5、.I have already eaten too much.2.Are you hungry?Yes.I haven t had lunch yet.3.Will you go to see the film tonight?No.I have seen it three times.4.Would you like to read this story?Yes.I have never read it before.5.Is Millie in Beijing?No.Its impossible.I have just seen her in the street.现在完成时的构成现在完成
6、时的构成1现在完成时的肯定句现在完成时的肯定句 主语主语主语主语(I/We/You/They)+(I/We/You/They)+have+过去分词过去分词过去分词过去分词 主语（主语（主语（主语（He/She/ItHe/She/It）+has+过去分词过去分词过去分词过去分词 We have lived in Beijing since 1998.He has lived in Beijing since 1998.2现在完成时的否定句现在完成时的否定句句型句型 主语主语+have/has+not+过去分词过去分词 I havent seen the movie yet.He hasnt vi
7、sited Beijing since then.过去分词的构成过去分词的构成一、规则变化一、规则变化1、直接加、直接加 ed looked watched2、以不发音的、以不发音的e结尾的，加结尾的，加 d changed moved3、以辅音字母加、以辅音字母加y结尾的，变结尾的，变y为为i，加，加-ed studied carried4、双写末字母，加、双写末字母，加-ed planned dropped stopped二、不规则变化二、不规则变化见课本第见课本第121页。页。The table below shows how we form the past particles of
8、some verbs.most verbs Irregular verbsInfinitive Past particle Infinitive Past particlevisitcomeliveseerepairbefinishgivemovewritewatchmaketravelput3现在完成时的一般疑问句现在完成时的一般疑问句句型句型 Have/Has+Have/Has+主语主语+过去分词过去分词+.+.Have you finished the Have you finished the work?work?Has she arrived here?Has she arrived
9、 here?4 4现在完成时的特殊疑问句现在完成时的特殊疑问句句型句型 特殊疑问词特殊疑问词+have/has+have/has+主语主语+过去分词过去分词+.+.He has been here He has been here since he was since he was 2 years old2 years old.Making sentencesMr.Wu asks the students to complete the.Wu asks the students to complete the sentences below using the present perfect
10、sentences below using the present perfect tense.Help them complete the sentences.tense.Help them complete the sentences.1.1.They_(finish)They_(finish)their homework.their homework.2.2.Mr.And Mrs.Li _(not Mr.And Mrs.Li _(not come)back come)back yetyet.3.3.John_ John_(play)this computer games(play)thi
11、s computer games a few timesa few times.4.4.We _(not see)that film We _(not see)that film yetyet5.5.I _ I _(repair)over ten(repair)over ten bicyclesbicycles since last since last MondayMonday.6.6.You _(not visit)me You _(not visit)me for a for a long timelong time.have finishedhave not comehas playe
12、dhave not seenhave repairedhave not visited写出下列不规则动词的过去式和写出下列不规则动词的过去式和过去分词过去分词1.pay2.put3.read4.ride5.ring6.rise7.run8.say9.see10.sell常用标志：since he came heresince 2 years ago/since 2009;for 2 yearsin/over/during the past(last)10 yearsso far/by nowin the recent years;recently常用标志：already;yetjustever
13、never;beforeA few times;twice;how many times实力测验实力测验用括号中动词的适当形式填空用括号中动词的适当形式填空1.He _ (wait)for an hour.2.I (not finish)the work yet.3.you (know)him since then?4.I _ (hear)from my father recently.5.We _ (be)there many times in the past 3 years.6.The man _(travel)to many countries since 3 years ago.7.
14、They _ (finish)the work so far.8.How long you _ (stay)at home?9.I _ (not read)the book before.10.He just (do)it.11.My sister _ (walk)to school every day last year.12.We _ (have)an exam again sometime next week.13.By now,we _ (plant)2000 trees.14.Lucy _ _ (go)to Shanghai.She _ (leave)this morning.has
15、 waitedhavent finishedHaveknownhave heardhave beenhas travelledhave finishedhavestayedhavent readhasdonewalkedwill havehave plantedhas goneleftlI _(do)my homework already.lHe _(not finished)his homework yet.l_you ever _(be)to Beijing?lWe _ never _(see)such an exciting match before.lMother _ just _(c
16、lean)the house.Please dont come in.lThey _(read)many books recently.have donehas not finishedHavebeenhaveseenhascleanedhave read用用since,for,already,yet,ever,never,just填空填空1.I dont know anything about Qingdao.I have _ been there before.2.Has you mum _ seen Jacky Chan?No,this is her first time.3.He ha
17、snt finished his homework _.4.How long have you lived here?_ I was born.5.I have _ had a bowl of noodles.I am very full now.6.Have you kept the book _ a long time?Yes.Ill return it soon.7.She has passed the games _.How clever she is!nevereveryetSincejustforalready注意：当在肯定陈述句中含有注意：当在肯定陈述句中含有alreadyalr
18、eady或或just just 时，在转换成否定句或疑问句时，要把句中的时，在转换成否定句或疑问句时，要把句中的already already 或或just just 去掉，在句末加上去掉，在句末加上yet.yet.I havent seen the film yet.I have done my homework already.I havent done my homework yet.Mother has just cleaned the house.Mother hasnt cleaned the house yet.I have seen the film already.现在完成时
19、和一般过去时的区别：现在完成时和一般过去时的区别：现在完成时，强调这一动作产生的结果对现现在完成时，强调这一动作产生的结果对现在的影响，与现在有关。在的影响，与现在有关。一般过去时，仅仅表示在过去某一时刻曾发一般过去时，仅仅表示在过去某一时刻曾发生过这一动作，与现在无关。生过这一动作，与现在无关。他已学英语五年了。他已学英语五年了。He has studied English for five years.他曾学过五年英语。他曾学过五年英语。He studied English for five years.（说明他还继续学下去）（说明他还继续学下去）（只说明他过去学过五年英语，但现在不学了。
20、）（只说明他过去学过五年英语，但现在不学了。）一般过去时与现在完成时有一些明一般过去时与现在完成时有一些明显的时间状语。显的时间状语。遇到遇到yesterday,last year,in May,in+过过去某一年，去某一年，two days ago,in the past,just now等就用一般过去时等就用一般过去时.当有当有 so far,in the past/last few days，since two days ago,for two days 等常用等常用现在完成时现在完成时.看看以下句子，有什么区别？看看以下句子，有什么区别？(A)Have you seen the fil
21、m?(B)Yes.I saw it at the Bright Cinema.说明说明(A)句强调的是被问者对剧情是否了句强调的是被问者对剧情是否了解；解；(B)句强调的是看电影的地点，与现在无关。句强调的是看电影的地点，与现在无关。(A)Have you had lunch?(B)Yes.I had it at 12.00.1.My brother_to Hainan last week.He thought taking the train takes too much time.2.Some visitors _our school sometime in a week3.I know
22、something about Qingdao because I _there before4.I _ a book when the light in my room went out last night.5.Can you lend me your dictionary now?-Sorry,I _ it.You may borrow it later.6.-OK.I will write to you as soon as I _ there.be read fly get visit use用动词的适当形式填空用动词的适当形式填空rise agree be prepare do1.
23、At the beginning of the twentieth century,the worlds population _ 1.7 billion.2.Have you finished your homework,Lucy?Not yet,Mum.I _ it right now.3.Hi,Lily.I didnt see you at the party.Oh.I _ for the history exam.4.Whats the news in the newspaper?Look at the report.I am surprised to find that the pr
24、ice of bread _ by 15%in the last three months.5.The manager as well as the workers _ to take a bus to work every day at the meeting.stay make take sweep affect影响影响1.None of us _ part in the sports meeting because we had a class trip.2.We all know that smoking _ our health.3.Has Zhou Bichang finished
25、 her new CD?No.She _ it the whole afternoon yesterday.4.I _ at home and sleep all day if there is no school tomorrow.5.What a clean floor!Who _ the floor?()1.A:_you_thefootballmatchyesterday?B:Yes,Idid.Itwasgreat.A.Did;seeB.Have;seenC.Will;seeD.Were;seen()2.A:Whynotgotoseethedolphinshowwithme?B:No,l
26、etsgohome.BecauseI_ittwice.A.sawB.willseeC.seeD.haveseen()3.A:_youathomeyesterdayevening?B:Yes,I_withmymother.A.Were;wereB.Was;wasC.Were;wasD.Was;wereADC()4.EveryoneexceptTomandJane_therewhenthemeetingbegan.A.areB.isC.wasD.were()5.Mymother_thewindowsalready,sotheroomlooksmuchbrighter.A.hascleanedB.hadcleanedC.iscleaningD.willclean()6.A:_you_yourhomeworkyet?B:Yes.I_itamomentago.A.Did;do;finishedB.Have;done;havefinishedC.Have;done;finishedD.will;do;finishCACThank youGoodbye