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 课件VIP专享VIP免费

Period3Grammar-------NounclausesasthesubjectTothespeaker:Confidence;Fluency;Accuracy!Totheaudience:Attention;InteractionEnglishspeech慧眼闪闪1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.3.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.4.whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.慧眼闪闪1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.3.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.4.whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.1.Tomasterthebasicusageofnounclausesassubject.2.TolearntousetheModuleverbsnounclausesassubjectintherealsituationthroughself-studyandpractice.3.BeabsorbedinEnglishstudyandenjoythebeautyofEnglish.content1.Learngrammarbyyourselfandtrytomakeasummaryoftheusageofthemaccordingtotheexamples2.Finishthelittlequiztoseeifyouhavemasteredthem.demands1.Studythesentencescarefullyandyoucanrefertothedictionaryorotherreferencebooks2.Makeamarkwhereyoucan’tunderstand3.Finishthistaskwithin15minutesSelf-directedstudyGroupdiscussion1.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Conjunctions(连接词)ofNounClausesasthesubject连接词连接代词连接副词what,whatever,who,whoever,whom,whose,which,whicheverthat,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）Specialattention1.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)PracticeandpromotioncontentFinishChallengeIandIIdemands1Putwhatwehavelearnedintouseandtrytoanalyzetheexercisecarefully2.Finishthistaskwithin10minutes挑战一1.that2.Whether3.Whoever4.When5.Whatyoutoldmejustnow6.Howwewillgothere7.Whyhecries挑战二1.B2.A3.C4.A5.B6.C7.D8.C9.B10.DChecktheanswer•ReviewwhatwehavelearnedConsolidationSummary&AdvicefromourEnglishmonitor:•Whatdidwehavelearnt?•Whattodoafterclasstobebetter?•Thebestgroupsandstudents.•1.Masterwhatwehavelearnedtoday.•2.Trytotidyyourmistakenexercisesonyourexercisebook.Homework