高中英语 Unit 4　Astronomy the science of the stars Period 4语法课件 新人教版必修3.ppt

Period3Grammar-Nounclausesasthesubject,Tothespeaker:Confidence;Fluency;Accuracy!,Totheaudience:Attention;Interaction,Englishspeech,慧眼闪闪,1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.3.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.4.whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.,Whatdothesentenceshaveincommon?,ModuleVerbs,慧眼闪闪,1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.3.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.4.whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.,Whatdothesentenceshaveincommon?,ModuleVerbs,1.Tomasterthebasicusageofnounclausesassubject.2.TolearntousetheModuleverbsnounclausesassubjectintherealsituationthroughself-studyandpractice.3.BeabsorbedinEnglishstudyandenjoythebeautyofEnglish.,Learningaims,Self-directedstudy,Groupdiscussion,1.主语从句的语序2.that1）作成分吗？有意义吗？2）何时省略？3）that与what的区别3.it作形式主语的情况;4.if与whether何时可互换？5.主语从句的主谓一致问题6.如何选择主语从句的引导词,质疑体现了一个人的水平和思维的深度,Question&answeraboutGrammar,Conjunctions(连接词)ofNounClausesasthesubject,what,whatever,who,whoever,whom,whose,which,whichever,that,whether,if,because，asif(asthough),when,where,how（-）,why,（充当从句的状语）,(充当从句的主语、宾语、表语、定语）,（不充当从句的任何成分）,Specialattention,1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.(what引导主语从句，在从句中作表语，意思是“什么”)2.Whowillgomakesnodifference.(who引导主语从句，在从句中作主语，意思是“谁”)3.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.(it作形式主语，真正的主语是that引导的主语从句，that在从句中不作句子成分，没有任何实际意思，只起引导词的作用。)4.Whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.(whether引导主语从句，在从句中不作任何句子成分，意思是“是否”)5.WheretheEnglisheveningwillbeheldhasnotyetbeendecided.(where引导主语从句，在句中作地点状语，意思是“哪里”),Canyoutellmenow?,Practiceandpromotion,挑战一1.that2.Whether3.Whoever4.When5.Whatyoutoldmejustnow6.Howwewillgothere7.Whyhecries挑战二1.B2.A3.C4.A5.B6.C7.D8.C9.B10.D,Checktheanswer,Reviewwhatwehavelearned,Consolidation,Summary&AdvicefromourEnglishmonitor:,Whatdidwehavelearnt?Whattodoafterclasstobebetter?T