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1、UnitOneⅠ. Teaching AimsThisunitaimstohelpstudentsimprovetheirnarratingskills.Theteachershouldencouragestudentstoexchangetheirviewsonnarratingonething(orperson)oraseriesofthings(orpersons).Bytheendofthisunit,studentsshouldgrasptheusefulwordsandexpressionsforcomprehension,befamili
2、arwithdifferentusesofthepresentcontinuoustenseandpastcontinuoustenseandbeabletoexpresstheiropinionsaboutnarrationinreasonablycorrectandappropriateEnglish.Ⅱ.TeachingPeriods教学时间安排（8课时）1.1---2课时：Vocabulary,TextA2.3---4课时：ExercisesI-V3.5---6课时：Dialogue,TextB4.7---8课时：Grammar,Exercis
3、esVocabularycheck:Checkstudents'understandingofjustafewkeywordsfromthetextbygivingtheirEnglishexplanationsandaskingthestudentstogivethewordsandtheirChinesemeanings.difficulttoexplain,orunderstand难以解释或理解的(strange)notforget(remember)becomecombinedintoonesubstance混合，搅和(mix)putinori
4、ntoaliquidforamoment蘸;浸，沾(dip)extremelybad;awful极差的;很糟的(terrible)whichmattersalot;havingorlikelytohavegreateffect,value,orinfluence重要的，重大的;很有作用(价值、影响)的(important)notanyofagroupofmorethantwo(在一组两个以上的人或物中)没有一个(none)Backgroundinformation:Providestudentswithsomeculturalbackgroundtof
5、amiliarizethemwiththesubject.Chemistryisthestudyofthecomposition,structure,properties,andinteractionsofmatter.ItarosefromattemptsbypeopletotransformmetalsintogoldbeginningaboutAD100,aneffortthatbecameknownasalchemy.Modernchemistrywasestablishedinthelate18thcentury,asscientistsbe
6、gan20identifyingandverifyingthroughscientificexperimentationtheelementalprocessesandinteractionsthatcreatethegases,liquidsandsolidsthatcomposeourphysicalworld.Asthefieldofchemistrydevelopedinthe19thand20thcenturies,chemistslearnedhowtocreatenewsubstancesthathavemanyimportantappl
7、icationsinourlives.Detailedstudy:Askstudentstoreadthetextcarefullyandprovidethemwithsomedetailedexplanationsofthefollowingdifficultlanguagepointsorstructures.LookcarefullyandlearnMyfriendPaulwillneverforgethisfirstchemistryteacher.Hewasalittlemanwiththickglasses,buthehadastrange
8、wayofmakinghisclasseslivelyandinteresting.Andhi
