高中英语 Unit4《Astronomy：the science of the stars》Learning about Language多媒体教学课件 新人教必修3.ppt

《高中英语 Unit4《Astronomy：the science of the stars》Learning about Language多媒体教学课件 新人教必修3.ppt》由会员分享，可在线阅读，更多相关《高中英语 Unit4《Astronomy：the science of the stars》Learning about Language多媒体教学课件 新人教必修3.ppt（26页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、Unit4Astronomy：thescienceofthestarsLearningaboutLanguage2021/8/11星期三1Putthesewordsintothemoresuitableoneofthetwoboxes.Ex.3P28energeticviolentgentlepatientangrycruelterriblecalmrelaxingshockedharmfulkindfriendlyjealous2021/8/11星期三2fiercewordspeacefulwordsenergeticviolentangrycruelterribleshockedharmf

2、uljealousgentlepatientcalmrelaxingkindfriendly2021/8/11星期三3Review the passage“How life began on the earth”andtranslatethefollowingsentences.1.谁也不知道地球会有别于其他行星。谁也不知道地球会有别于其他行星。2.这就是地球独有特性的初次显现。这就是地球独有特性的初次显现。Nobodyknewthatitwasgoingtobedifferentfromotherplanets.Thisishowtheearthbegantoshowitsspecialqu

3、alities.2021/8/11星期三43.许多人认为这对生命的起源特别重要。许多人认为这对生命的起源特别重要。4.没有人懂得这些植物就是许多变化的开始。没有人懂得这些植物就是许多变化的开始。Manypeoplethinkthatthiswasimportantforthebeginningoflife.Nobodyunderstoodthattheseplantswerethestartsofmanychanges.2021/8/11星期三5GrammarWhat part does the underlined part serve as in eachsentence?Atreehas

4、fallenacrosstheroad.Youareastudent.Tofindyourwaycanbeaproblem.Smokingisbadforyou.2021/8/11星期三6“Howdoyoudo”isagreeting.Whatshesaidisnotyetknown.Thatweshallbelateiscertain.Itiscertainthatweshallbelate.Wecanfromthesesentencesseethatasentenceservesassubject,sowecallitSubjectClause.2021/8/11星期三7SubjectCl

5、auses主语从句主语从句2021/8/11星期三81.主语从句：从句在句中充当主语成分主语从句：从句在句中充当主语成分1)That he will succeed is certain.2)Whether he will go there is not known.3)How we can help the twins will be discussed at the meeting.2021/8/11星期三92引导主语从句的连接词有三类：引导主语从句的连接词有三类：(1)连词连词that、whether：Whetherwegobytrainorbyboatmakesnodifference

6、.Whetherhellcomehereisntclear.Thatpricewillgoupiscertain.2021/8/11星期三10Whatshedidisnotyetknown.Whowillwritethepoemhasnotbeendecidedyet.Whateverhedidisright.(2)连接代词连接代词who,whom,whose,what,which,whoever,whatever,whichever等。等。2021/8/11星期三113)连接副词连接副词where,when,how,why等。等。Howthishappenedisnotcleartoanyo

7、ne.Whenhewillbebackdependsontheweather.Howthepyramidswerebuiltisstillamystery.2021/8/11星期三123.主语从句后置主语从句后置为为了了避避免免主主语语冗冗长长,句句子子头头重重脚脚轻轻,经经常常用用it作作形形式式主主语语,主语从句放在后面作真正的主语。主语从句放在后面作真正的主语。例例:1.Thatweshallbelateiscertain.2.Thattheearthisroundisknowntoall.3.Thatyoumissedthechanceisapity.Itisapitythatyoum

8、issedthechance.Itsknowntoallthattheearthisround.Itscertainthatweshallbelate.2021/8/11星期三13A.It+be+形容词形容词(obvious,true,natural,surprising,good,wonderful,funny,possible,likely,certain,probable,etc.)+that从句。如：从句。如：Itiscertainthatshewilldowellinherexam.B.It+be+名词词组名词词组(nowonder,anhonour,agoodthing,apity

9、,nosurprise,etc.)+that从句。如：从句。如：Itsapitythatwecantgo.4.用用it作形式主语的结构作形式主语的结构2021/8/11星期三14C.It+be+过去分词过去分词(said,reported,thought,expected,decided,announced,arranged,etc.)+that从句。如：从句。如：ItissaidthatMr.GreenhasarrivedinBeijing.D.It+seems,happens等不及物动词及短语等不及物动词及短语+that从句。如：从句。如：IthappenedthatIwasoutthat

10、day.E.It+doesntmatter(makesnodifference,etc.)+连接代词连接代词或连接副词引起的主语从句。如：或连接副词引起的主语从句。如：Itdoesntmatterwhethershewillcomeornot.2021/8/11星期三151.What you left are only several old books.2.What you said is of great importance.3.Whetherhellcomehereisnotclear.1.“if”不能引导主语从句，应用不能引导主语从句，应用“whether”引导。引导。3.主语从句的

11、主语从句的“that”一般不能省。一般不能省。4.“what”引导主语从句时，谓语动词：引导主语从句时，谓语动词：1）常与其后作表语的名词一致）常与其后作表语的名词一致 2）根据句子的语境而定。）根据句子的语境而定。5.主语从句需注意的问题主语从句需注意的问题2.主语从句中用陈述语序。主语从句中用陈述语序。2021/8/11星期三161.Whereshallwespendtheholidayisntdecided.2.Yourhavemadeamistakeisafact.3.Thatiscertainthatwecanwin.4.Nomatterwholeavestheroomlastoug

12、httoturnoffthelights.5.Itisimportantthatastudentlearnsaforeignlanguage.weshallThatyouhaveItisWhoevershouldlearn改错练习改错练习【达标训练】2021/8/11星期三171._ he made an important speech at the meeting was true.A.That B.Why C.What D.How 2._well go camping tomorrow depends on the weather.A.If B.Whether C.That D.Wher

13、e 3._ is known to us all is that America is a developed country _ the First World.A.Which;belong to B.As,belonged to C.What;belonging to D.It;belonging to单项选择单项选择ABC2021/8/11星期三184.Its known to us all _ a form of energy.A.water is B.that water is C.is water D.that water to 5.It worried her a bit _ h

14、er hair was turning gray.A.whether B.that C.what D.when6.What I say and think _ none of your business.A.is B.are C.has D haveBBA2021/8/11星期三19BCB7._weneedmorepracticeisobvious.A.WhatB.ThatC.WhenD./8._theycansolvethequestionisstillunknown.A.IfB.WhichC.WhetherD.What9._hesaidatthemeetingastonishedevery

15、body.A.WhyB.WhatC.ThatD.Who2021/8/11星期三20DB10._ is a fact that English is accepted as aninternationallanguage.A.ThereB.ThisC.ThatD.It11._madetheschoolproudwas_morethan90ofthestudentshadbeenadmittedtokeyuniversities.A.What;becauseB.What;thatC.That;whatD.That;because2021/8/11星期三21BB12._wewillgocamping

16、tomorrowdependsontheweather.A.IfB.WhetherC.ThatD.Where13._thattheycanpassthewrittenexamthistime.A.ThatishopedB.ItishopedC.IthopesD.Thathopes2021/8/11星期三22C14.Itwasdoubtful_Maryreallyheardhim.A.thatB.ifC.whetherD.what2021/8/11星期三23Homework1.FinishEx.(2.4.5);Ex.onP27.28(exercisebookA).2.Finishtheexercisesonthepaper.3.Preview“Avisittothemoon”onP304.听写听写“planet”to“disappointed”.2021/8/11星期三24Lightcome,lightgo.来得容易，去得快。2021/8/11星期三252021/8/11星期三26