英语人教版八年级下册Unit8SectionA(1a-1c).ppt

Unit8,SectionAPeriod1(1a-1c),教学目标：,1.初步感知现在完成时态的意义和基本用法；2.学会运用already，yet；3.能简单地询问或者谈论自己、别人已经做过的事情。,Letslearnthenewwords.,1.treasuren.珠宝，财富（不可数名词）；珍藏品（可数名词）e.g.Theywenttotheretolookfortreasure.他们去那儿寻宝。Thismuseumhasmanyarttreasures.这家博物馆收藏了许多艺术珍品。,2.islandn.岛（可数名词）e.g.anisland一个岛屿TreasureIsland宝岛,Presentation,Lookatthepicture.Haveyoureadthesebooks?,HaveyoureadOliverTwistyet?,Yes,Ihave./No,Ihavent.,HaveyoureadTomSawyeryet?,Yes,Ihave./No,Ihavent.,HaveyoureadTreasureIslandyet?,Yes,Ihave./No,Ihavent.,HaveyoureadAliceinWonderlandyet?,Yes,Ihave.Whatsitlike?Itsfantastic.,HaveyoureadLittleWomenyet?,Yes,Ihave.Whatsitlike?Itswonderful.,HaveyoureadRobinsonCrusoeyet?,Yes,Ihave.Whatsitlike?Itsexciting.,_AliceinWonderland_LittleWomen_TreasureIsland_OliverTwist_RobinsonCrusoe_TomSawyer,1aHaveyouheardofthesebooks?Check()theonesyouknow.,Whataboutyou?,pairwork,A:Haveyouheardofthebookyet?B:Yes,Ihave.Ihavealreadyheardofit./No,Ihavent.Ihaventheardofit.,AliceinWonderlandLittleWomenTreasureIslandOliverTwistRobinsonCrusoeTomSawyer,Hasyourpartnerheardofthebookyet?Yes,he/shehas.He/Shehasalreadyheardofit.No,he/shehasnt.He/Shehasntheardofityet.,AliceinWonderlandLittleWomenTreasureIslandOliverTwistRobinsonCrusoeTomSawyer,Listenandcompletethechart.,1b,NO,TreasureIsland,RobinsonCrusoe,LittleWomen,Yes,NO,Yes,Yes,No,Itsreallyexciting.,Itswonderful.,Itsfantastic.,1cPracticetheconversation.Thentalkabouttheotherbooksinla.,A:HaveyoureadLittleWomenyet?B:No,Ihavent.Haveyou?A:Yes,Ivealreadyreadit.B:Whatsitlike?A:Itsfantastic.,A:HaveyoureadAliceinWonderlandyet?B:No,Ihavent.Haveyou?A:Yes,Ivealreadyreadit.B:Howisit?A:Itswonderful.,PairWork,A:HaveyoureadOliverTwistyet?B:Oh,no.Ivenotreadityet.Whataboutyou?A:Well,Ivealreadyreadit.B:Whatdoyouthinkofit?A:Itsfantastic.,PairWork,现在完成时的构成:现在完成时是由“助动词have/has+动词的过去分词”构成。助动词要和主语的人称、数保持一致。,现在完成时,动词的过去分词的不规则变化P136-137,动词的过去分词的变化规则（一）规则变化：,1.一般在动词词尾直接加ed。,2.以不发音的e结尾的动词后面加d。,如：likelikedliked;phonephonedphoned,如：pickpickedpicked;wishwishedwished;,studystudiedstudied;hurryhurriedhurried;,3.以“辅音字母+y”结尾的动词，变y为i，再加-ed。如：,4.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-ed。如：,stopstoppedstopped;planplannedplanned,现在完成时的各种句式：,.陈述句：,.否定句：,3.一般疑问句：,4.特殊疑问句：,主语have/has+过去分词其他成分。,主语have/has+not+过去分词其他成分。,Have/Has+主语过去分词其他成分？Yes，主语have/has.No,主语havent/hasnt.,特殊疑问词have/has主语+过去分词+其他成分？,现在完成时的用法:表示过去某个时间发生的动作对现在造成的影响或结果。常使用just,already,yet等时间副词。Haveyouhadlunchyet?你吃了午饭吗？Yes,Ivejusthadit.是的,我刚刚吃过。(现在我不饿了),现在完成时的时间状语:(1)用副词already和yet。already一般用于肯定句中,yet一般用于否定句和疑问句中。Wehavealreadyfinishedourhomework.我们已完成家庭作业了。Theyhaventfinishedtheirhomeworkyet.他们还没有完成家庭作业。,(2)用ever和never。多用于否定或疑问句中,表示“曾经”或“从未”等。HaveyoueverbeentotheGreatWall?你曾经去过长城吗？No,IhaveneverbeentotheGreatWall.不,我从未去过长城。,Exercises,用所给词的适当形式填空1.She_(finish)herhomeworkalready.2._youever_(see)mypen?3.Jimsfather_(live)inLondonfor20years.4.-_you_(be)toFrance?-Yes,I_(go)therelastyear.5.They_(have)thebuildingsincethreeyeasago.6.-_MrGreen_(write)thenovel?-Notyet.,自主尝试,has,finished,Has,seen,haslived,Have,been,went,have,had,Has,written,用括号中所给的动词的适当形式完成下列句子。7.Mary_(lose)herpen._you_(see)ithereandthere?8._you_(find)yourwatchyet?9.-Areyouthirsty?-NO,I_just_(have)someorange.10.We_already_(return)thebook.11._they_(build)anewschoolinthevillage?12.-HasTomtaughtyouEnglish?-Yes,he_(teach)usEnglishfortwoyears.13.I_(notfinish)myhomeworkyet.Canyouhelpme?14.What_they_(do)withthenewspaper?Theyhavereadthem.,los