Unit4Astronomy:thescienceofthestarsPeriod3Learningaboutlanguage:rammar整体设计教材分析Thisisthethirdteachingperiodofthisunit.Totestwhetherstudentshavegraspedtheimportantanddifficultlanguagepointstheylearnedinthelastperiod,theteachershouldfirstofferthemsomerevisionexercises.Thenleadinthenewlesson.Thisteachingperiodmainlydealswiththefollowing:1.Reviewingnounclausesastheobjectandasthepredicative;2.Learningthenewgrammaritems:nounclausesasthesubject.Studentsoftenfeelnounclausesabstractanddifficulttolearn,soitisnecessarytomakethelessoninterestingandlively,andconnectitwiththeirdailylifeinordertoletiteasytoacceptandunderstand.Firstly,theteachercanaskstudentstoreadthepassageHOWLIFEBEGANONTHEEARTHagain,tickoutallthesentencesfromthepassagewherenounclausesareusedasthesubject,andthentranslatethemintoChinese.Secondly,compareanddiscovertheusesofeachnounclausebygivingalotofexamplesentences.Thirdly,dotheexercisesinDiscoveringusefulstructuresonPage29andmoreexercisesforstudentstomastertherelatednounclauses.Finally,summarizetheuseofnounclausesasthesubjectandletstudentsmakeitclearhoweachnounclauseisbeingusedinthesituations.Attheendoftheclass,askstudentstodotheexercisesinUsingstructuresonPage64andmoreadditionalexercisesforconsolidation.教学重点Getstudentstounderstandandusenounclausesasthesubject.教学难点Enablestudentstolearnhowtousenounclausesasthesubjectcorrectly.三维目标知识目标1.Getstudentstoknowmoreaboutnounclauses.2.Letstudentslearnnounclausesasthesubject.Whatitwastobecomewasamystery......itwasnotclearwhetherthesolidshapewastolastornot.能力目标Enablestudentstousenounclausesasthesubjectcorrectlyandproperlyaccordingtothecontext.情感目标1.Getstudentstobecomeinterestedingrammarlearning.2.Developstudents’senseofgroupcooperation.教学过程设计方案（一）→Step1Revision1.Checkthehomeworkexercises.2.Dictatesomenewwordsandexpressions.3.Translatethefollowingsentences.1)你早晚会来的。2)我的车与你的不一样。3)他总是第一个来,最后一个走。4)他来不来还不清楚。5)我们的成败取决于是否每个人都努力工作。6)我们必须采取措施防止这种疾病的蔓延。Suggestedanswers:1)Youwillcomehereintime.2)Mycarisdifferentfromyours.3)Heisalwaysthefirsttocomeandthelasttogo.4)Itisnotclearwhetherhecomesornot.5)Oursuccessdependsonwhethereveryoneworkshardornot.6)Wemusttakeactionstopreventthisdisease(from)spreading.→Step2PreparationShowsomesentencesonthescreen.Askstudentstoreadeachofthemandthenfindoutitssubject.Atreehasfallenacrosstheroad.Youareastudent.Tofindyourwaycanbeaproblem.Smokingisbadforyou.“Howdoyoudo?”isagreeting.Whatshesaidisnotyetknown.Thatweshallbelateiscertain.It’scertainthatweshallbelate.→Step3Grammarlearning1.ReadinganddiscoveringAskstudentstoturnbacktoPage25toreadthroughthereadingpassageandfindallthesentenceswherenounclausesareusedasthesubjectandunderlinethem.ThentranslatethemintoChinese.Suggestedanswers:1)Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.地球会变成什么（样子）,直到45亿至38亿年前这个云团变成一个固体的球状物,才确定下来。2)Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.地球变得激烈动荡,不知道这个固体形状是否会继续存在下去。3)Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.更重要的是,随着地球的冷却,地球的表面就开始出现了水。4)Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife....
