PAGE\*MERGEFORMAT8Unit12Lifeisfulloftheunexpected.单元总览LanguageGoalNarratepasteventsKnowledgeGoalsKeyWordsunexpected，backpack，oversleep，block，worker，above，burn，alive，airport，till，west，cream，pie，bean，market，fool，discovery，lady，cancel，officer，believable，disappearKeyPhrasesbythetime，give…alift，inlinewith，showup，bytheendof，costumeparty，selloutKeySentences1.WhenIwokeupitwasalready8：00a．m.!2.BeforeIgottothebusstop，thebushadalreadyleft.3.AsIwaswaitinginlinewiththeotherofficeworkers，Iheardaloudsound.4.BythetimeIgottotheairport，myplanetoNewZealandhadalreadytakenoff.KeyGrammarUnderstandpastperfecttense.Learntouseadverbialclauseswithwhen，before，as，bythetimetonarratepastevents.AbilityGoals1.Developlistening，speaking，readingandwritingskillsbyusingthetargetlanguages.2.Learntonarratepasteventsusingadverbialclauseswith“when，before，as，bythetime”.MoralGoals1.Withthehelpofthisunit'sstudy，studentslearntopaymoreattentiontosafety.2.LearnsomethingaboutAprilFool'sDay.TeachingTimeFiveperiods单元教材分析本单元SectionA的中心话题是讲述发生过的意想不到的事情，学习的语言项目是了解过去完成时态描述过去某一时间或动作之前已经发生或完成了的动作，运用一般过去时态描述过去某个时间里发生的动作或存在的状态。这部分的重点是让学生能够用适当的时态叙述过去发生的事情，特别是意想不到的事件。教学难点是让学生明白一般过去时态和过去完成时态的区别，并能正确运用这两种时态叙述过去发生的事情。SectionB依旧围绕“让人出乎意料的事件”这一话题展开，内容从学生的生活琐事、意外事故过渡到生活中出其不意的玩笑，特别是愚人节发生的让人难以预料的事情。这部分的学习重点依旧是掌握一般过去时态和过去完成时态，学习难点是能够在写作中熟练运用这两种时态。Period1－SectionA(1a－2d)TeachingImportantPointsKeywords&phrases：unexpected，backpack，oversleepbythetime；give…aliftKeysentences：1.Whathappenedtothegirl?2.BythetimeIgotup，mybrotherhadalreadygottenintheshower.3.WhenIgottoschool，IrealizedIhadleftmybackpackathome.4.BeforeIgottothebusstop，thebushadalreadyleft.Keystructure：had＋donewhen/before/bythetime＋clausee．g.WhenIgothome，IrealizedIhadleftmykeysinthebackpack.TeachingDifficultPointsPracticethepastperfecttenseandtheadverbialclauseswithwhen，before，as，bythetimetonarratepastevents.TeachingAidsAtaperecorder，pictures，CAIormultimediacourseware.TeachingStepsStep1Leadingin1.Greeting2.Warming－upGetthestudentstoreviewsomev