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1、必修三Unit4Astronomy：thescienceofthestars肥城一中李大刚Words【学习目标】1、课前预习、记忆单词，能够会读、会写。2、通过查字典、小组合作探究，掌握单词、词组的用法。【重点难点】1、重点单词:system,theory,violent,unlike,fundamental,harmful,multiply,exist,puzzle,crash,pull,float2、重点短语：intime,layeggs,givebirthto,inone’sturn,prevent…from,blockout,cheerup,nowthat,watchoutf
2、or,breakout【自主学习】Theclassificationofpartsofspeechv.multiply,exist,puzzle,crash,pull,floatn.astronomy,system,religion,theory,atom,billion,globe,carbon,dioxide,atmosphere,acid,chain,oxygen,puzzle,biology,gravity,satellite,physicist,climate,spaceship,adj.violent,fundamental,harmful,gentle,unlikepr
3、ep.unlike【合作探究】1.astronomyn.天文学astronomer天文学家2.systemn.[c]系统；体系；制度；方法systematicadj.有系统的;有条理的1)Thesolarsystem(太阳系)includesthesunanditseightplanets.太阳系包括太阳和它的八颗行星。2)Theeducationsystem（教育系统）operatesverydifferentlyintheUSandChina.3)Heintroducedusawell-designedrailwaysystem(铁路系统).3.religionn.宗教，宗教信仰
4、religiousadj.believeinreligion信教1)Youshouldn’ttalkaboutpoliticsorreligion.你不应该谈论政治和宗教。4.theoryn.学说，理论intheory在理论上inpractice在实践上puttheoryintopractice把理论付诸实践Darwin’stheoryofevolution达尔文的进化论theoryofrelativity相对论combinetheorywithpractice把理论与实践相结合1)Intheory,Iagreewithyou,butIfeelthatyourideaswouldno
5、tworkinpractice.理论上，我同意你的意见，但实际上恐怕行不通。5.globen.球，球状物，地球仪globaladj.theglobe地球，世界1)Ifyoulookatthisglobe,youwillseewhereequatoris.如果看一下地球仪，你就会看到赤道在哪儿。6.atmospheren.c.n.&u.c.大气层，气氛，氛围1)Thewastegoesintotheatmosphere.废气进入大气层。2)Thetopleadersofthetwocountriesareholdingtalksinafriendlyatmosphere.两国领导人在友
6、好的气氛中进行谈判。7.violentadj.猛烈的，激烈的，强暴的violencen.answerviolencewithviolence以暴制暴violentbehavior暴力行为violentwinds猛烈的大风1)Thestudentsareinvolvedinviolentdashes.学生们被卷入了暴力冲突。8.intime及时；迟早，终有一天1）You’llsucceedintimebecauseyouarealwaysworkinghard．2）IhopeyoucanarrivehereintimetoseeMr.Greenbeforeheleavesthisaft
7、ernoon.3)Hewasintimetocatchthebus.=Hewasintimeforthebus.用法总结：intimetodo=intimeforsth.及时做…9.unlikeadj.&prep.不同；不像→反义词:like像； likevt.喜欢→反义词dislike不喜欢1)Theyaresounlikethatnobodywouldbelievetheyweresisters.2)Unlikeme,mysisterlikest
