八年级英语下册Unit8HaveyoureadTreasureIslandyet第三课时Sectio

第三课时SectionA(GrammarFocus～4c)1．意义：表示过去发生或已经完成的动作对现在造成的影响或结果。eg：－Haveyouhadyourlunchyet？你已经吃过午饭了吗？－Yes，Ihave.I'vejusthadit.是的，我刚吃过。(现在我不饿了)Ihavealreadypostedthosephotos.我已经邮寄了那些照片。(那些照片已不在我这里了)单元语法精讲精练现在完成时（一）2．构成：肯定句：主语＋have/has＋过去分词＋其他．否定句：主语＋have/has＋not＋过去分词＋其他．疑问句：Have/Has＋主语＋过去分词＋其他？肯定回答形式：Yes，主语＋have/has.否定回答形式：No，主语＋have/hasnot.3．already，yet与现在完成时already常用于肯定句中，指动作已经发生，或比期望发生的要早，一般用在句子中间或句末。yet用于疑问句和否定句中，谈论尚未发生但可能发生的事，通常位于句末。eg：－Haveyouhadyourlunchyet？你吃过午饭了吗？－Yes，I'vealreadyhadit.是的，我已经吃过了。一、根据句意选用already或yet填空。1．—Haveyoufinishedyourmathhomework_______?—Yes.Ifinisheditafewminutesago.2．Ihave__________hadbreakfast，butmysisterhasn't______．3．—Haveyoufedthecat?—No，Ihaven'tfedit______．4．Theboyhas____________boughtanEnglishChinesedictionary.yetalreadyyetalreadyyet二、单项选择。5．Motheroftentellsme，“Ihopeyou____whatI________youtodoatschool！”(2015，武威)A．won'tforget，havetoldB．don'tforget，willtellC．didn'tforget，tellD．haven'tforgotten，amtelling6．MissBrown，we____cleaningourclassroom.Canwegohomenow?A．finishB．finishingC．havefinishedD．arefinishedAC7．TheSmiths____tomanyplacesofinterestinBeijinginthepasttwentydays.A．travelB．havetraveledC．willtravel8．—HasJackreadthebookyet?—____．A．Yes，hehasB．Yes，hedoesC．Yes，hedid9．Iwon'tgotowatchthemoviewithyoubecauseIhave____seenit.A．yetB．alreadyC．neverBAB10．Iheardanewsongontheradio.I____highandlowinthemusicstore，butIcan'tfindthesong.(2015，河南)A．searchB．havesearchedC．amsearchingD．willsearchB三、按要求完成句子，每空一词，缩写算一词。11．Ihavealreadyseenournewteacher.(改为否定句)I____________ournewteacher________．12．IhavealreadyfinishedreadingJourney_to_the_West.(对画线部分提问)________________________readingyet?13．JanehasalreadyreadLittleWomen.(改为一般疑问句并作否定回答)—______________LittleWomenyet?—_______，she__________．haven'tseenyetWhathaveyoufinishedNoHasJanereadhasn't14．—Havetheyfinishedtheirwork？(作否定回答)—______，___________．15．Didyouvisitthezoo？(用现在完成时改写句子)____________________thezoo________?Notheyhaven'tHaveyouvisitedyet