Unit4Astronomy:thescienceofthestarsTeachinggoals教学目标1Targetlanguage目标语言a重点词汇和短语suffer,settle,realize,worryabout,havegotto,tieupb重点句子：Hewasverydisappointed.Whatitwastobecomewasamystery.Tosavemoney,youmustuseasfewwordsaspossible.c.PractisetalkingaboutproblemsinstudyorlifeMyproblemis…Thedifficultyis…Mytroubleis…Thequestionis…Myadviceis…WhatIthinkaboutitis…Thefactis…Mysuggestionis…2Abilitygoals能力目标LearntouseNounClausesasthesubject..3Learningabilitygoals学能目标LetSslearnhowtouseNounClausesasthesubjectTeachingimportantpoints教学重点theuseofNounClausesasthesubjectTeachingdifficultpoints教学难点HowtoteachtheSstolearntouseNounClausesasthesubjectTeachingmethods教学方法LearngrammarthroughpracticeTeachingaids教具准备AprojectorAblackboardTeachingprocedures&ways教学过程与方式StepIRevision1.Checkretellingofthepassage.用心爱心专心Theexplosionoftheearthproducedwatervapor,whichturnedintowaterwhentheearthcooleddown.Waterallowedtheearthtodissolveharmfulgasesintotheoceansandseas.Thatmadeitpossibleforlifetobegintodevelop.Thearrivalofsmallplantsencouragedthedevelopmentofearlyshellfishandallsortsoffish.Manymillionsofyearslaterthefirstgreenplantsbegantoappearonland.Laterlandanimalsappeared.Somewereinsects.Others,calledamphibians,wereabletoliveonlandaswellasinthesea.Whentheplantsgrewintoforests,reptilesappearedforthefirsttime.Later,dinosaursdeveloped.Theybecamethemostimportantanimalsontheearthformillionsofyears.Aftertheydisappeared,mammalsbecamemoreimportant.Theywerethelastgroupofanimalsandtheyweredifferentbecausetheyproducedtheiryoungfromwithintheirbodies.Smallcleveranimals,withhandsandfeet,appearedandspreadallovertheearth.Astimewentby,theycoveredtheearthandhavebecomethemostimportantanimalsontheplanet.2.Translatethefollowingsentences.1.你迟早会成功的。2.我的车与你的不一样。3.站在门旁边的那个人是谁？4.他总是第一个来，最后一个离开。5.既然你已经长大了，你自己决定吧。Suggestedanswers:1.You’llsucceedintime.2.Mycarisdifferentfromyours.3.Whoisthepersonstandingbythedoor?4.He’salwaysthefirsttocomeandthelasttoleave.5.Nowthatyouhavegrownupyoucandecideityourself.StepIIWordstudyThispartisaconsolidationofthewordslearntinthisunit.AsktheSstodotheexerciseindependently.1.Page27.FirstletSsfinishPart1and2.(3minutes)T:NowpleaseopenyourbooksandturntoPage27.Firstlet’slearnaboutlanguage.Usethewordsyou’velearntinthisunittofillintheblanksandcompletetheformwithsuitablewords.用心爱心专心2.Checktheanswerswiththewholeclass.3.GivetheSsthreeminutestofinishPart3.T:Dividethewordsintotwogroups.Doyouknowwhatdofierceandpeacefulmean?“Fierce”meansviolentandangryorstrong.“Peaceful”meansquietandcalm.4.LetSsreadPart4forawhileandfinishit.5.TurntoPage63Part1and2.FirstletSsfinishthemandchecktheanswer.Keytotheexercises:Part1Across:2.float5.mass6.presence8.carbon9.mobileDown:1.planet2.force3.astronomy4.explore7.circlePart21.energetic2.surface3.dependson4.gradually5.exists6.prevent…from7.spread8.aremultiplying9.Nowthat6.Part3canbehomeworkiftimeislimited.StepIIIPreparationShowsomeexamplesentencesonthescreen.1Atreehasfallenacrosstheroad.2Youareastudent.3Tofindyourwaycanbeaproblem.4Smokingisbadforyou.5“Howdoyoudo?”isagreeting.6Whatshesaidisnotyetknown.7Thatweshallbelateiscertain.8It’scertainthatweshallbelate.T:Lookatthescreen.Whatpartdoestheunderlinedpartserveasineachsentence?Orfinditssubjectineachse...
