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,Unit1 Past and present,Grammar:Present,perfect tense,dodiddone,bewas/werebeen,comecamecome,choosechosechosen,Present perfect tense,现在完成时,1.结构:,+,。,2.含义,(1)表示过去已完成,但对现在有一定影响的动作,常与副词,before,already,recently,yet,ever,just,never,等连用。如:,have/has,动词的过去分词,Past,Now,John,has eaten,my food.,(John ate up the food,and now I have nothing to eat.),I have just had lunch.我刚刚吃过了午饭。,He has had a cup of tea.他已经喝过一杯茶了。,The boy has already read the book.那个男孩已经看过那本书了。,Subject,主语,has/have(not),助动词,Past participle,过去分词,I,have,washed,my hands.,You,have not,washed,your hands.,She,has,washed,her hands.,He,has not,washed,his hands,We,have,washed,our hands,They,have not,washed,their hands.,(2)表示从过去,并可能继续延续下去的动作。其谓语动词常常是,动词,且句中常有表示一段时间的时间状语,如 for two years,since last week,so far,(迄今为止),in the past two months。如:,He has lived in the small town for ten years.,他已经在这个小镇住了十年了。,Tom and Jerry have been good friends since they met at that party.,自从汤姆和杰瑞在那次聚会上相遇以来,他们就成了好朋友。,某一时间开始一直延续到现在,延续性,Past,Now,I,have studied,English for years.,(I,started,to learn English at the age of 6,and,now,I,m still learning it.),(3)表示一种经历;去过地方;做过事情;经历过事情。如:,I have never seen a film in the cinema.我从未在电影院看过电影。,She has never been to a cinema.她从未去过电影院。,(1)肯定式:主语+,+动词的过去分词+其他.如:,I have finished my homework.我已经完成我的家庭作业了。,(2)否定式:主语+,+not+动词的过去分词+其他.,如:,I have not finished my homework.,我还没有完成我的家庭作业。,3.句式:肯定式、否定式和疑问式,have/has,have/has,Subject,(,主语,),have/has+(not),（助动词）,past participle,(,过去分词,),I/You/We/They,have(not),moved.,He/She/It,has(not),moved.,have not=havent,has not=hasnt,(3)一般疑问句:,+主语+动词的过去分词+其他?,如:Have you finished your homework?,你完成你的家庭作业了吗?,Have/Has,Have,I/you/we/they,moved?,Has,he/she/it,Yes,，,I/you/we/they,have.,he/she/it,has.,No,，,I/you/we/they,have not/havent.,he/she/it,has not/hasnt.,-,Has,Max lived in this city all his life,？,2.,Max has lived in this city all his life,.,(,改为一般疑问句并作回答,),1.,Nick has forgotten Judys name,.(,改为否定句,),Nick has,not,forgotten Judys name.,Practice:,-Yes,he,has.,/No,he,hasnt.,3.Ive not seen a mammoth sleep like that.,(,改为肯定句,),Ive seen,a mammoth sleep like that.,(4)特殊疑问句:特殊疑问词+,+主语+动词的过去分词+其他?如:,How long have you taught English?你教英语多长时间了?,have/has,规则动词的过去分词的变化规则,4.,动词的过去分词,构词法,示例,a.,一般直接在词尾加,ed,workworked,openopened,b.,以不发音的字母,e,结尾的词直接加,d,livelived,skateskated,构词法,示例,c.,以,“,辅音字母,y”,结尾的词，变,y,为,i,，再加,studystudied,hurryhurried,d.,以,“,元音字母,y”,结尾的词，直接加,ed,playplayed,staystayed,e.,以,“,元音字母一个辅音字母”结尾的重读闭音节词，先双写这个辅音字母，再加,ed,stopstopped,planplanned,preferpreferred,be,wear,see,forget,know,eat,lose,was/were,wore,saw,forgot,knew,a,t,e,lost,Notes:Turn to pages 122 and 123 for more changes of irregular verbs.,写出下列动词的过去式和过去分词,been,wor,n,seen,forgotten,known,e,aten,lost,5,常用时间状语：,just,刚刚；,yet,用于疑问句，表示“已经”，用于否定句表“还”；,ever,曾经；,already,用于陈述句，表示“已经”，否定句中改为,yet,；,never,用在句中表示否定，从未，从不；,recently,近来，最近。,eg,：,Have you found your lost key yet?,你已经找到你丢失的钥匙了吗？,I have never heard of this singer before.,我以前从未听说过这个歌手。,1 borrow,2 hope,3 make,4 get,5 plan,6 cry,7 send,8 watch,9 say,10 grow,11 hit,12 enjoy,1 borrow,2 hope,3 make,4 get,5 plan,6 cry,borrow,ed,hope,d,made,got,plan,ned,cr,ied,sent,watch,ed,said,gr,o,w,n,hit,enjoy,ed,A,Mr Wu wants the students to practice using the presrnt,perfrct tense.Help them write the past participles of the verbs below.,A short test,1.They _ (finish)their homework already.,2.John _never _ (visit)China.,3.Mr.Li _(repair)over ten bicycles since,Monday,.,4.We_ (not see)each other for years.,5.My parents _ (not come)back yet.,6.Our teacher _(teach)us a lot about the,history,of China.,have finished,has visited,has repaired,havent seen,has taught,havent come,B,Mr Wu asks the students to complete the sentences below using the presrnt perfrct tense.Help them complete the sentences.,C,Millie and Sandy are talking about a film about the history,of Beijing.Complete their conversation with the correct forms of the verbs in brackets.,Chat time,M:_ you _(see)any,films recently,Sandy?,S:No,I havent.What about you?,M:Well,I _(see)one last Saturday.,S:What is it about?,M:Its about the changes in Beijing over the past,century,.,From,this film,I _,_,_ (learn)more about Beijings,past,and present.,S:Oh,I think I _,_,_ (hear)about the film.Do you,plan,to see it again?,M:Yes,Id like to.,Have,seen,saw,have heard,have learnt,词 汇 点 睛,1yet adv.还,仍,观察,My parents havent come back yet.,我父母还没回来。,辨析,already与yet,already,意为“,已经,”,一般用于,句;有时用于疑问句,表示惊奇,。,yet,意为“还,仍”,常用于,和,。,肯定,否定句,疑问句,拓展,yet 还可用作连词,意为,“,然而,但是,”,。,1.2019湘西改编,you ever,Hong Kong-Zhuhai-Macao Bridge?,Not yet.,A.Did;visit,B.Are;visit,C.Have;visited,D.Do;visit,C,活 学 活 用,2recently adv.近来,最近,观察,Have you seen any films recently,Sandy?,桑迪,你最近看过电影吗?,探究,recently常与现在完成时连用。,拓展,recently的形容词形式为,。,recent,词 汇 点 睛,2.,you,Luke recently?,Yes,I,to see him in the science museum yesterday afternoon.,A.Did;meet;happenedB.Have;met;happen,C.Did;meet;happenD.Have;met;happened,D,活 学 活 用,一、用所给词的适当形式填空,1.I _(study)in America for over three years.,2.The young man _(live)alone since he graduated from college.(,兰州,),3.This is the best f
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