Unit4Astronomy:thescienceofthestars教案Unit4Astronomy:thescienceofthestars-VocabularyandUsefulExpressions学习目标：1.Trytorememberthekeywordsandexpressions.2.Trytomastertheusageofsomekeywordsandexpressions.学习重点：1.Theusagesofkeywords:①atmosphere②harmful③mass④climate⑤lay2.Theusagesofsomeexpressions:①intime/ontime/innotime②prevent…from③nowthat④breakout/in/up/down/awayfrom学习过程：Ⅰ.Reading1.Readthewordsandexpressionstocheckthepronunciationwithyourpartners.2.Readaftertheteacher.Ⅱ.Knowledgelink1.Knowthenewwordaccordingtothewordlearntbefore.religiousadj⑴宗教上的：______________(n.)_______________(意义)practicen.⑵实践；练习：______________(反义)_____________(意义)violencen.⑶暴力暴行：______________(adj.)_____________(意义)harmn./vt⑷损害危害：______________(adj.)____________(意义)biologyn.⑸生物学家：______________(…家)____________(意义)______________(科学家)___________(物理学家)______________(地质学家)gentlemann.⑹绅士：______________(adj.)____________(意义)extinctionn.⑺灭绝；消亡：______________(adj.)____________(意义)globen.⑻地球：______________(adj.)____________(意义)existencen.⑼存在；生存：______________(vi.)____________(意义)thereforeadv.⑽因此于是：______________(同义)2.Completeandrecitethephrasesbelow.⑴及时；终于______________⑵阻止制止______________⑶即然______________准时ontime阻止制止stop…(from)立刻马上innotime阻止制止keep…from⑷突发爆发______________打断，干扰breakin机器坏了，抛锚breakdown发生takeplace打碎，分解breakup脱离breakawayfrom偶然发生comeaboutCrazyEnglish:1.Nothingcanpreventus(from)reachingouraims.什么也阻止不了我们达到我们的目的。2.Iwillbeasuccessintime.我早晚会成功的。3.WeallcheeredupatthenewsofthesuccessfullaunchingofChang’eⅠ.听到嫦娥一号发射成功的消息，我们都欢呼起来。4.Nowthatwe’vejustbegun,keepon!既然我们已经开始了，那就坚持下去！Ⅲ.Wordcafé1.atmosphere:n.①大气；大气层②气氛；环境afriendlyatmosphere____________cleartheatmosphere:消除误会（或紧张猜疑气氛）2.harmful:adj.有害的（to）harm:n./vt损害doharmtosb___________;Harmset,harmget.害人反害己3.mass:n.质量；堆，团，块；大量themasses群众vi.集中聚集Darkcloudsaremassinginthewest.西方乌云密布。常用词组：amassof/massesof大量的；可用来修饰可数名词和不可数名词。该词组作主语时，谓语动词的单复数有所修饰的名词决定。Massesofstudents________interestedincomputergames.Amassofwork________tobedonetoday.4.climate:n.①气候（地区的长期来的气候状况）②一般（社会）趋势（社会）风气weather:n.天气（短期内的天气状况）5.lay(laid;laid)vt.①下蛋②放置layabookonthetable③布置安排laythetable(准备开饭时)摆好餐具④提出（问题、主张等）laythequestionbeforethecommittee.lie:(lied;lied)vi.说谎lie:(lay;lain)vi.躺；位于Ⅳ.Usethewordsandexpressions.1.Buddhismisoneoftheworld___________andoneofitsmostfamous________buildingsinChinaisthePotalaPalaceinTibet.(religions;religious)2.Somedinosaurswereverylargebutalsovery_________.Youngdinosaursweretreatedvery__________untilltheybecameadults.(gently;gentle)3.Smokingish__________toyourhealth.You’dbettergiveitup.4.Nobodyknowsiflifeusedtoe___________ontheMars(火星).5.Hisquestionreallyp__________me.Ihadtoasktheteacherforhelp.breakoutnowthatcheerupintimepreventfrom6.WheneverIamsad,healwaysthinksupagoodideatomakeme______________.7.Ifyouwon’tlistentoyourparents,you’llfeelsorry____________.8.Shouldanotherworldwar____________?Whatwouldbecomeofhumanbeings?9.___________you’vegotyourjob,youshouldn’tdependonyourparentsanymore.10.Weshouldtakesomemeasuresto_____________theriver_________beingpolluted.Ⅴ.学后反思：基本词汇知识掌握情况如何？Ⅵ.Post-classwork:1.PreviewHowLifeBeganonTheEarth2.Completethenextpaperforyourself.
