英语必修三第四单元省公共课一等奖全国赛课获奖课件.pptx

Unit 4Astronomy:the science of the stars1共 116 页第1页第一课时Warming up&Reading2共 116 页第2页vEach religion and culture has its own ideas about how life began on earth.What do you know about them?3共 116 页第3页4共 116 页第4页5共 116 页第5页6共 116 页第6页7共 116 页第7页重点重点单词单词1astronomy n天文学天文学astronomer n天文学家天文学家2system n系系统统；体系；制度；体系；制度3theory n学学说说；理；理论论4.religion(n.)宗教，宗教信仰宗教，宗教信仰religious(adj.)宗教上宗教上5globe n球体；地球球体；地球仪仪；地球；地球global adj.全球性；全世全球性；全世界界6.violent adj.猛烈；激烈；猛烈；激烈；强强暴暴violence n暴力暴力violently adv.猛烈地猛烈地 8共 116 页第8页7.fundamental(adj.)基本；基基本；基础础8.atmosphere n大气大气层层；气氛；气氛9.unlike prep.不一不一样样；不像；不像dislike vt.不喜不喜欢欢10.presence n出席；到出席；到场场；存在；存在present adj.&n.&v在在场场；当前，；当前，现现在；出席；在；出席；颁发颁发，授予，授予11.harmful adj.有害；有害；伤伤害害harm n危害，坏危害，坏处处harmless adj.无害无害12chain(n.)链链子；子；连锁连锁；锁链锁链9共 116 页第9页vexactly 准确地，准确地，确切地 exact adj.eg.Your answer is exactly right.vhappen take place Great changes have taken place in my hometown in the last thirty years.10共 116 页第10页uaccording to 依据，按照，据.所说 翻译：Everything went accoring to plan.u theory a formal set of ideas that explain why sth.happens n.学说，理论u throw-threw-thrown throw away 扔掉11共 116 页第11页v direction 方向v matter 物质 事情，问题 拓展：as a matter of fact in fact actually12共 116 页第12页vcombine.with.把.与.结合起来 翻译：They live happily because they combine their work with pleasure.vcreate creative creativity v.adj.n.创造 有创造力 创造力 13共 116 页第13页vbody 身体，躯干 天体vuncertain 不确定 certain 确定 certainly adv.vsettle into 安定下来，稳定下来 settle down 定居，安定下来14共 116 页第14页vsolid 坚固，坚固vglobe n球体；地球球体；地球仪仪；地球；地球global adj.全球性；全球性；全世界全世界15共 116 页第15页u violent adj.猛烈；激烈；猛烈；激烈；强强暴暴violence n暴暴力力violently adv.猛烈地猛烈地uso.that.如此如此.以至于以至于.造句：他是如此有趣以至于每个人都很喜欢他。16共 116 页第16页vHe is so funny that everyone likes him very much.vit is not clear whether.or not.还不确定,还不清楚 句子仿写：他要不要来还不确定17共 116 页第17页vIt is not clear whether he will come or not.18共 116 页第18页 来得及；及时 If you catch the early bus,youll get there in time.假如你赶上早班车，你会及时抵达那儿。Will we be in time for the six oclock train?我们来得及赶上六点钟那趟火车吗？vin time19共 116 页第19页vatmosphere(n.)(1)(围绕地球)大气；大气层；大气圈(2)C(房间、封闭空间或某处)空气 These plants love warm,humid atmosphere.这些植物喜欢温暖潮湿空气。(3)C&U 气氛；气氛The atmosphere changed as soon as she walked in.她一进来气氛就变了。20共 116 页第20页vappear 出现v.appearance n.vdisappear 消失v.disappearance n 知识点回顾：The fact is that I earned my passage by working as an unpaid hand,which accounts for my appearance.(unit 3,page 18)21共 116 页第21页vunlike prep.不一样；不像vWater had also appeared on other planets like Mars but,unlike the earth,it had disappeared later.v在火星等其它行星上也出现了水，但不像在地球上一样，这些水以后消失了。vIts unlike him to be late;hes usually on time.v他不是会迟到那种人；他通常很按时。22共 116 页第22页易易 错错 点点 拨拨自我完善自我完善误误区区备备考考1.unlike/dislike/alike/likely(1)unlike prep.不一不一样样；不像；不像(2)dislike vt.不喜不喜欢欢(3)alike adj.相同，一相同，一样样(4)likely adj.很可能很可能发发生，有希望生，有希望It is likely/unlikely that.有/没有可能.23共 116 页第23页vfundamental 基础，基本v Hard work is fundamental to success.v勤奋工作是成功基础。vdevelopment n.发展 develop v.developed（社会，国家）发达 deloping 发展中v造句：中国是一个发展中国家24共 116 页第24页vpresence n出席；到出席；到场场；存在；存在present adj.&n.&v在在场场；当前，；当前，现现在；出席；在；出席；颁发颁发，授予授予 at present 现现在，当前在，当前25共 116 页第25页26共 116 页第26页vchain n链子，连锁；锁链vThis produced a chain reaction，which made it possible for life to develop.v这就产生了一个连锁反应，使生命发展成为可能。vHe is in a poor taste with a thick gold chain round his neck.v他戴着一条粗粗金链子，显得俗气。27共 116 页第27页重点短重点短语语1in time及及时时；终终于于2according to 据据.所所说说；依据，按照；依据，按照bine.with.把把.与与.结结合起来合起来4.settle into 稳稳定下来定下来5.allow(permit)sb.to do sth.允允许许某人做某事某人做某事28共 116 页第28页.完成句子1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。The earth became_ it was not clear whether the shape would last or not.(so.that.如此以至于)29共 116 页第29页2喷出烈火与岩石及时产生了碳、氮气、水蒸气和其它气体，从而形成了地球大气层。They_ carbon,nitrogen,water vapour and other gases,which _ the earths atmosphere.(be in time to do sth.及时做某事；be to do sth.惯用来表示不可防止将要发生事情)30共 116 页第30页3水对于生命发展起关键作用，这一点在当初并不显著。_water was to be fundamental to the development of life.(It is obvious that.很显著)31共 116 页第31页4很多科学家相信，因为地球上长久有水存在，使地球得以把有害气体和酸性物质溶解在海洋里。_the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.32共 116 页第32页v5.This produced a chain reaction,which _.这就产生了一系列反应，使得生命发展成为可能。33共 116 页第33页答案：1.so violent that2.were in time to produce;were to make3.It was not immediately obvious that4.What many scientists believe is that5.Which made it possible for life to develop.34共 116 页第34页HomeworkvRecite the wordsvRead the passage and analyze the four sentences 35共 116 页第35页 Thank you for listening!36共 116 页第36页