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1、Read the following sentences we have seen.Have you read Little Women yet?Yes,I have./No,I havent.Has Tina read Treasure Island yet?Yes,she has.She thinks its fantastic.Have you decided which book to write about yet?Yes,I have.Ive already finished reading it.It was really good.用法用法1.表示过去发生或已经完成的某一动作表
2、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。对现在造成的影响或结果。e.g.Haveyouhadyourlunchyet?Yes,Ihave.Ivejusthadit.(现在现在我不饿了。我不饿了。)2.表示动作或状态从过去某一时刻开始，表示动作或状态从过去某一时刻开始，一直延续到现在，而且可能还要继续一直延续到现在，而且可能还要继续下去。下去。e.g.Ihaventseenherthesedays.IveknownBobforthreeyears.Ivebeenatthisschoolforovertwoyears.时间状语时间状语already,yet,just,ever,nev
3、er,before构成构成现在完成时是由现在完成时是由“助动词助动词have/has+动词动词的过去分词的过去分词”构成的，规则动词的过去分构成的，规则动词的过去分词构成与过去式相同，不规则动词的过去词构成与过去式相同，不规则动词的过去分词则需逐个记忆。分词则需逐个记忆。动词的过去式的变化和过去分词的动词的过去式的变化和过去分词的变化并不完全相同。我们对它们作了一变化并不完全相同。我们对它们作了一个大致的分类。个大致的分类。(注：例子中单词的变注：例子中单词的变化顺序为：动词原形化顺序为：动词原形动词的过去式动词的过去式动词的过去分词动词的过去分词)一、过去式和过去分词的变化相同一、过去式和过
4、去分词的变化相同规则变化规则变化：1.一般在动词词尾直接加一般在动词词尾直接加ed。如：。如：pickpickedpicked;wishwishedwished;staystayedstayed2.以不发音的以不发音的e结尾的动词后面加结尾的动词后面加d。如：。如：likelikedliked;hopehopedhoped;phonephonedphoned3.以以“辅音字母辅音字母+y”结尾的动词，变结尾的动词，变y为为i，再加再加-ed。如：。如：studystudiedstudied;hurryhurriedhurried;replyrepliedreplied4.词尾只有一个辅音字母的
5、重读闭音节动词尾只有一个辅音字母的重读闭音节动词，要双写辅音字母，再加词，要双写辅音字母，再加-ed。如：。如：stopstoppedstopped;clapclappedclapped不规则变化：不规则变化：5.以不变应万变以不变应万变。如：。如：letletlet;putputput;readreadread6.若中间有双写若中间有双写e，则去掉一个，则去掉一个e，单词，单词末尾再加末尾再加t。如：。如：feelfeltfelt;keepkeptkept;sleepsleptslept7.结尾的字母结尾的字母d变变t。如：。如：lendlentlent;buildbuiltbuilt;se
6、ndsentsent8.变为以变为以-ought或或-aught结尾结尾。如：。如：buyboughtbought;bringbroughtbrought;catchcaughtcaught;teachtaughttaught句式句式1.肯定句：主语肯定句：主语+have/has+过去分词过去分词(+其他其他)2.否定句：主语否定句：主语+have/has+not+过去过去分词分词(+其他其他)3.一般疑问句：一般疑问句：have/has+主语主语+过去过去分词分词(+其他其他)4.特殊疑问句特殊疑问句：1)特殊疑问词特殊疑问词(不是句子主语不是句子主语)+have/has+主语主语+过去分词
7、过去分词(+其他其他)2)特殊疑问词特殊疑问词(是句子主语是句子主语)+have/has+过去分词过去分词(+其他其他)already和和yet都可以作为现在完成时的标都可以作为现在完成时的标志词，但它们的用法不同。志词，但它们的用法不同。already一般用于肯定句中一般用于肯定句中。如：。如：Wehavealreadycleanedupourclassroom.注意：注意：already用于疑问句中时通常表用于疑问句中时通常表示惊奇示惊奇。如：。如：Haveyoufinishedyourhomeworkalready?Icantbelieveit.yet一般用于疑问句和否定句中一般用于疑问
8、句和否定句中。如：。如：Haveyouseenheryet?Thebushasntcomeyet.活学活用活学活用1.Writetheformsofthepasttenseandpastparticiple:drink_see_find_leave_tell_drankdrunksawseenfoundfoundleftlefttoldtoldWhyisMr.Yangstillintheteachersoffice?Maybehe_hisworkyet.A.doesntfinishB.hasntfinishedC.haventfinishedB Exercises 4a Use the wor
9、ds in brackets to complete the conversations.1.A:Wouldyoulikesomethingtodrink?B:No,thanks._.(just/drinksometea)2.A:Iheardyoulostyourkey._?(find)B:No,notyet.IhavejustdrunksometeaHaveyoufoundit3.A:DoyouknowwhenTomisleaving?B:_.(already/leave)A:When_?(leave)B:Thismorning.4.A:Isyoursistergoingtothemovie
10、swithustonight?B:No._.(already/seethefilm)HehasalreadyleftdidheleaveShehasalreadyseenthefilm5.A:Whatdoyourparentsthinkaboutourplan?B:I_.(not/tellthem/yet)haventtoldthemyet4b Fill in the blanks with the correct forms of the words in the brackets.Sally_(love)reading.Inthemorningshereadsthenewspaperand
11、intheeveningshereadsbooks.She_already_(read)morethan100differentbooks.Herfavoritekindofbooksissciencefiction.Sheisinterestedinscienceandtechnologyandlovestoimaginewhattheworld_(be)likein50years.loveshasreadwillbeShe_(finish)readingabookaboutrobotslastweekand_(write)abookreportaboutitnextweekforherFr
12、enchclass.Everytimesheisinthelibrary,Sallylooksatthemanybooksshe_(notread)yetandshecantwaittoreadthem.finishedwillwritehasntreadGroupwork 4c Complete the chart with information about you and your friend.A:Whatbookshaveyoualreadyread?B:IhavealreadyreadTomSawyerandHarryPotter.A:Whatdoyouthinkofthem?B:
13、Well,IthinkHarryPotterwasexciting,butTomSawyerwasabitboring.YouYour friend CommentsBooks I have already readMovies I have already seenSongs I have already heard()【2013广西贵港】广西贵港】DoyouknowthemovieLost in Thailand?Yes.I_ittwice.Itsfunny.A.sawB.seeC.haveseenD.willseeC()【2013黑龙江牡丹江】黑龙江牡丹江】Lunch?No,thanks
14、.I_.A.willeatB.ameatingC.haveeaten()【2013湖北黄冈】湖北黄冈】WhereisTom?Wecantfindhimanywhere.Perhapshe_home.A.hascomeB.isgoingC.wentD.wasgoingCARetellwhatyoudidyesterdayandwhatyouhavedonenow.1、了解面对逆境，远比如何接受顺境重要得多2023/3/62023/3/612:44:02 AM。2023/3/62023/3/6Monday,March 6,20232、一般的伟人总是让身边的人感到渺小Monday,March 6,2
15、02312:44:02 AM3/6/2023 12:44:02 AM00:44Mar-23。2023/3/62023/3/62023/3/63/6/2023 12:44:02 AM3、2023/3/6Mar-2306-Mar-234、昨天是张退票的支票06-Mar-2312:44:02 AM00:442023/3/62023/3/62023/3/6Monday,March 6,20235、积极人格的完善是本，财富的确立是末06-3月-23。2023/3/62023/3/62023/3/62023/3/63/6/20236、昨晚多几分钟的准备3/6/2023 12:44:02 AM06 三月 2
16、0232023/3/62023/3/62023/3/67、每一发奋努力的背，必有加倍的赏赐2023/3/6三月 232023/3/62023/3/62023/3/63/6/20238、业余生活要有意义，不要越轨。2023/3/62023/3/606 March 20239、要及时把握梦想，因为梦想一死3/6/2023 12:44:02 AM。2023/3/62023/3/62023/3/62023/3/610、一个人的梦想也许不值钱，但一个人的努力很值钱。3/6/2023 12:44:02 AM2023/3/606-3月-2311、在真实的生命里，每桩伟业都由信心开始，并由信心跨出第一步。3/
17、6/2023 12:44 AM3/6/2023 12:44 AM2023/3/62023/3/6谢谢大家谢谢大家1、每一个成功者都有一个开始。勇于开始，才能找到成功的路2023/3/600:442、成功源于不懈的努力，人生最大的敌人是自己怯懦。2023/3/62023/3/62023/3/63/6/2023 12:44:02 AM3、每天只看目标，别老想障碍Monday,March 6,2023。2023/3/62023/3/62023/3/6Monday,July 19,202106-Mar-234、宁愿辛苦一阵子，不要辛苦一辈子2023/3/6。2023/3/62023/3/62023/3
18、/6Monday,March 6,20235、积极向上的心态，是成功者的最基本要素2023/3/6。2023/3/62023/3/62023/3/62023/3/63/6/20236、生活总会给你另一个机会，2023/3/612:44:02 AM2023/3/62023/3/62023/3/67、人生就像骑单车，想保持平衡就得往前走21:19:482023/3/62023/3/63/6/20238、业余生活要有意义，不要越轨。2023/3/62023/3/606 March 20239、我们必须在失败中寻找胜利Monday,March 6,20232023/3/610、一个人的梦想也许不值钱，但一个人的努力很值钱。3/6/2023 12:44:02 AM2023/3/606-3月-2311、在真实的生命里，每桩伟业都由信心开始，并由信心跨出第一步。3/6/2023 12:44 AM3/6/2023 12:44 AM2023/3/62023/3/6谢谢大家谢谢大家