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1、8B Unit 1 GrammarPresent perfect tenseThink&Answer他父母结婚时，他住在苏州。MyparentshavelivedinSuzhousincetheygotmarried.HelivedinSuzhouwhenhisparentsgotmarried.自从我父母结婚以来，他们一直住在苏州。Whendoweneedtousethepresentperfecttense?Weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent.I
2、havelivedheresinceIwasborn.HehaslivedheresincehecametoNanjing.Weusethepresentperfecttensetotalkaboutanactionthathappenedinthepastandhasaconnectionwiththepresent.EddiehasjusteatenHobosfood.(Eddieatethefood,andnowHobohasnothingtoeat.)Ihavelostmymobilephone.(Ilostmymobilephone,andnowIhavenomobilephonet
3、ouse.)1.现在完成时的肯定句句型现在完成时的肯定句句型主语（主语（I/You/We/They）+has（He/She/It）+have+过去分词过去分词用用have/has填空填空They_seenthatfilmbefore.Greatchanges_takenplaceinChinaoverthepast10years.Myfamily_livedinthisareasince15yearsago.havehavehave2.现在完成时的否定句句型现在完成时的否定句句型主语主语+have/has+not+过去分词过去分词+Ihaveseenthemovie.(改为否定句改为否定句)I
4、haventseenthemovie.hasnt=hasnothavent=havenot3.现在完成时的一般疑问句句型现在完成时的一般疑问句句型Have/Has+主语主语+过去分词过去分词+Yes,主语主语+have/has.No,主语主语+have/hasnot.Shehasarrivedhere.(改为一般疑问句，并作肯定改为一般疑问句，并作肯定/否否定回答定回答)Hasshearrivedhere?Yes,shehas./No,shehasnt.LetspractiseA:Haveyou?B:Yes,Ihave.No,Ihavent.A:Hashe/she?B:Yes,he/sheha
5、s.No,he/shehasnt.brushyourteethbrushedyourteethreadthebookreadthebookhavepizzahadpizzaRegular verbsIrregular verbsBase form Past participle Base form Past participlevisithitmovemeettrysellstudygivestopwriteplanthinkvisitedmovedtriedstudiedstoppedplannedhitmetsoldgavewrotethought规则动词的过去分词规则动词的过去分词1.大
6、多数的动词的过去分词是规则的，只需在动词后加大多数的动词的过去分词是规则的，只需在动词后加-eded；如：；如：workworkedlistenlistenedjumpjumped visitvisited2.在以在以-e-e结尾的动词后只加结尾的动词后只加-d d；如：；如：closeclosedlikelikedagreeagreedmovemoved3.在以辅音字母加在以辅音字母加y y结尾的动词，应结尾的动词，应将将y y改为改为i i再加再加eded；例如：；例如：studystudiedcarrycarriedtrytriedworryworried4.以重读闭音节结尾的动词，要以
7、重读闭音节结尾的动词，要双写双写末尾辅音字母再加末尾辅音字母再加-eded；如：；如：stopstoppeddropdropped有些动词的过去分词是不有些动词的过去分词是不规则的，需要特殊记忆。规则的，需要特殊记忆。（课本（课本P122-123页）页）Write the past participles of the verbs below.Part A,Page 14 borrowplansayhopecrygrowmakesendhitgetwatchenjoyborrowedhopedmadegotplannedcriedsentwatchedsaidgrownhitenjoyedWe
8、alsousethepresentperfecttensetotalkabouthowmanytimesanactionhashappenedtillnow.Ihavealreadyreadthisbookmanytimes.Wecanusethesetimeexpressionswiththepresentperfecttense.alreadyyeteverneverjustrecentlysincefor+一段时间一段时间manytimes1.already已经，常用于肯定句中，不用于否定句。已经，常用于肯定句中，不用于否定句。Ihavealreadyseenthefilm.我我已经已经
9、看过这部电影了。看过这部电影了。2.yet1)已经，已经，常用在疑问句中常用在疑问句中。HasLindareadthebookyet?琳达琳达已已看过这本书了吗看过这本书了吗?2)还，仍然，常用于否定句。还，仍然，常用于否定句。Hehasnotbeguntoworkyet.他他还还未开始工作。未开始工作。注意：当在肯定陈述句中含有注意：当在肯定陈述句中含有alreadyalready时，在转换成否定句或时，在转换成否定句或疑问句时，要把句中的疑问句时，要把句中的already already 去掉，在句末加上去掉，在句末加上yet.yet.Ihaventseenthefilmyet.Ihave
10、alreadycleanedthehouse.(改为一般疑问句改为一般疑问句)Haveyoucleanedthehouseyet?Ihaveseenthefilmalready.(改为否定句改为否定句)-Haveyoudoneyourhomework?-Not_.(还没有还没有)yet3.ever曾经，主要用于疑问句曾经，主要用于疑问句Haveyoueverwantedtotravelaroundtheworld?你你曾经曾经想要周游世界吗？想要周游世界吗？4.never从来没有，表示否定从来没有，表示否定Hehasneverseensuchatallbuilding.他他从未从未见过这么高的
11、楼。见过这么高的楼。5.just刚刚，常用于肯定句中刚刚，常用于肯定句中Ihavejustfinishedlunch.我我刚刚吃过午饭。吃过午饭。6.recently近来，最近近来，最近Ihaventseenthemrecently.我我近来近来没见过他们。没见过他们。7.for+一段时间一段时间8.since+过去的时间点（过去的时间点（2000/5 years ago）+从句（一般过去时）从句（一般过去时）Kate has lived here for 3 years.凯特已经在这住了凯特已经在这住了3 3年了。年了。Katehaslivedheresince3yearsago.Kateh
12、aslivedheresinceshecametoChina.*当主句的谓语动词为当主句的谓语动词为be/seem时，主句用时，主句用现在完成时现在完成时/一般现在时一般现在时/，从句从句仍使用仍使用一般过一般过去时去时。e.g.Itsbeen5yearssincewemovedtoSuzhou.Itsalongtimesinceweleftschool.*主句用主句用现在完成时现在完成时，从句用，从句用一般过去式一般过去式。现在完成时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在的影响，与现在有关。现在完成时，强调这一动作产生的结果对现在的影响，与
13、现在有关。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。无关。他已学英语五年了。他已学英语五年了。HehasstudiedEnglishforfiveyears.他曾学过五年英语。他曾学过五年英语。HestudiedEnglishforfiveyears.一般过去时与现在完成时有一些明显的时间状语：一般过去时与现在完成时有一些明显的时间状语：遇到遇到yesterday,lastyear,inMay,in+过去某一年，过去某一年，twodaysago,justnow等就用一般过去时。等就用一般过去时。当有当有in/ove
14、r/duringthepast/lastfewyears(在过去在过去/最近最近的几年里的几年里),sofar,uptonow/tillnow（直到现在（直到现在),manytimes（几次）（几次）等常用现在完成时。等常用现在完成时。1.They_(finish)theirhomeworkalready.2.John_never_(visit)China.3.MrLi_(repair)overtenbicyclessinceMonday.4.We_(notsee)eachotherforyears.5.Myparents_(notcome)backyet.6.Ourteacher_(teac
15、h)usalotaboutthehistoryofChina.havefinishedhavenotcomehastaughthavenotseenhasrepairedhasvisitedPartB,P14M:_you_(see)anyfilmsrecently,Sandy?S:No,Ihavent.Whataboutyou?M:I_(see)onelastSaturday.S:Whatsitabout?M:ItsaboutthechangesinBeijingoverthepastcentury.Fromthisfilm,I_(learn)moreaboutBeijingspastandp
16、resent.S:Oh,IthinkI_(hear)aboutthefilm.Doyouplantoseeitagain?M:Yes,Idliketo.HaveseensawhavelearnthaveheardPartB,P141.YouworkinLuoyang,dontyou?Yes.I_inthiscityforthreeyears.A.workB.workedC.haveworkedD.willwork2.Thebookisverythin,butJackthinksitsthebestbookthathe_.A.readB.hasreadC.willreadD.reads3.I_i
17、nthisareaovertheyears.I_hereyearsago.A.lived;havemovedB.havelived;movedC.lived;movedD.havelived;havemovedI.Multiplechoice.4.Myauntisawriter.She_morethantenbookssince1980.A.writesB.wroteC.haswrittenD.willwrite5.Lucy,_you_yourticket?Notyet.A.did;findB.have;foundC.has;foundD.do;find6.There_greatchanges
18、inChinasincetwentyyearsago.A.areB.wereC.havebeenD.have7.Ifyou_alibrarybook,youmustpayforit.A.mayloseB.havelostC.arelosingD.willloseI.Multiplechoice.8.Idliketointroducemybestfriendtoyou,Peter.Thankyou,Lucy.Butwe_already.A.meetB.metC.willmeetD.havemet9.Lookatthesestamps.I_themforfiveyears.Wow,theyarew
19、onderful.A.keptB.havekeptC.boughtD.havebought10.IhaveseenthefashionshowonTVathome.When_you_it?A.will;seeB.have;seenC.did;seeD.do;seeI.Multiplechoice.1.I_(have)dinner.Iamfull.2.Bothofthem_(be)inHongKongsincetendaysago.3.Bothofthem_(come)toHongKongtendaysago.4.Fourhours_(pass)sincethetrain_(leave).5.T
20、hey_(see)themovietwice.6.She_(buy)somenicetoysrecently.7.Hurryup!Lunch_already_(begin).havehadhaveseenhasboughtII.Fillintheblanks.hasbegunhavebeencamehaspassedleft8._they_(build)anewschoolinthevillagelastyear?9.I_(notfinish)myhomework.Canyouhelpme?10.Dontmakenoise.Myfather_(sleep)intheroom.11.-Areyo
21、uthirsty?-No.I_just_(drink)someorangejuice.12.I_(buy)abookjustnow.13.Mynephew_(read)bookseveryevening.DidII.Fillintheblanks.buildhaventfinishedissleepinghavedrunkboughtreads1.Ivealreadyhaddinner.(否定句否定句+疑问句疑问句)2.Hehasjustfinishedhishomework.(否定句否定句)3.Ihaveknownhimsince30daysago.(划线提问划线提问)4.Theyhaveb
22、eenmarriedfor3years.(划线提问划线提问)5.IlivedinSuzhouin1990.(用用since改写改写)Ihaventhaddinneryet.III.将下列句子改为否定句或疑问句将下列句子改为否定句或疑问句。Hehasntfinishedhishomework.Howlonghaveyouknownhim?Howlonghavetheybeenmarried?IhavelivedinSuzhousince1990.Haveyouhaddinneryet?IV.TranslatethefollowingsentencesintoEnglish.1.你已经制作好生日贺
23、卡了吗？你已经制作好生日贺卡了吗？2.你这周日准备做什么？你这周日准备做什么？还没决定。还没决定。3.他已经在图书馆等了你一会了他已经在图书馆等了你一会了。4.你读过你读过哈利哈利波特波特这本书么？这本书么？是的，我已经读过好多遍了。是的，我已经读过好多遍了。5.自自1978年以来，他一直独居于此。年以来，他一直独居于此。Haveyoufinishedmakingthebirthdaycardyet？Hehaswaitedforyouforsometimeinthelibrary.-WhatareyougoingtodothisSunday?-Ihaventdecidedyet.-HaveyoureadthebookHarry Potter?-Yes,Ihavealreadyreaditmanytimes.Hehaslivedherealonesince1978.次数前不加次数前不加for一段时间前加一段时间前加for Homework1.复习现在完成时的构成与用法。复习现在完成时的构成与用法。2.背诵不规则动词的过去分词背诵不规则动词的过去分词 T hT hThank you!Thank you!ou!ou!