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

unit4astronomy thescienceofthestarslearningaboutlanguage putthesewordsintothemoresuitableoneofthetwoboxes ex 3p28 energeticviolentgentlepatientangrycruelterriblecalmrelaxingshockedharmfulkindfriendlyjealous energetic violent angry cruel terrible shocked harmful jealous gentle patient calm relaxing kind friendly reviewthepassage howlifebeganontheearth andtranslatethefollowingsentences 谁也不知道地球会有别于其他行星 这就是地球独有特性的初次显现 nobodyknewthatitwasgoingtobedifferentfromotherplanets thisishowtheearthbegantoshowitsspecialqualities 3 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 manypeoplethinkthatthiswasimportantforthebeginningoflife nobodyunderstoodthattheseplantswerethestartsofmanychanges grammar whatpartdoestheunderlinedpartserveasineachsentence atreehasfallenacrosstheroad youareastudent tofindyourwaycanbeaproblem smokingisbadforyou howdoyoudo isagreeting whatshesaidisnotyetknown thatweshallbelateiscertain itiscertainthatweshallbelate wecanfromthesesentencesseethatasentenceservesassubject sowecallitsubjectclause subjectclauses主语从句 1 主语从句 从句在句中充当主语成分 1 thathewillsucceediscertain whetherhewillgothereisnotknown 3 howwecanhelpthetwinswillbediscussedatthemeeting 2 引导主语从句的连接词有三类 1 连词that whether whetherwegobytrainorbyboatmakesnodifference whetherhe llcomehereisn tclear thatpricewillgoupiscertain whatshedidisnotyetknown whowillwritethepoemhasnotbeendecidedyet whateverhedidisright 2 连接代词who whom whose what which whoever whatever whichever等 3 连接副词where when how why等 howthishappenedisnotcleartoanyone whenhewillbebackdependsontheweather howthepyramidswerebuiltisstillamystery 3 主语从句后置为了避免主语冗长 句子头重脚轻 经常用it作形式主语 主语从句放在后面作真正的主语 例 1 thatweshallbelateiscertain 2 thattheearthisroundisknowntoall 3 thatyoumissedthechanceisapity itisapitythatyoumissedthechance it sknowntoallthattheearthisround it scertainthatweshallbelate a it be 形容词 obvious true natural surprising good wonderful funny possible likely certain probable etc that从句 如 itiscertainthatshewilldowellinherexam b it be 名词词组 nowonder anhonour agoodthing apity nosurprise etc that从句 如 it sapitythatwecan tgo 4 用it作形式主语的结构 c it be 过去分词 said reported thought expected decided announced arranged etc that从句 如 itissaidthatmr greenhasarrivedinbeijing d it seems happens等不及物动词及短语 that从句 如 ithappenedthatiwasoutthatday e it doesn tmatter makesnodifference etc 连接代词或连接副词引起的主语从句 如 itdoesn tmatterwhethershewillcomeornot whatyouleftareonlyseveraloldbooks whatyousaidisofgreatimportance whetherhe llcomehereisnotclear 1 if 不能引导主语从句 应用 whether 引导 3 主语从句的 that 一般不能省 4 what 引导主语从句时 谓语动词 1 常与其后作表语的名词一致2 根据句子的语境而定 5 主语从句需注意的问题 2 主语从句中用陈述语序 1 whereshallwespendtheholidayisn tdecided 2 yourhavemadeamistakeisafact 3 thatiscertainthatwecanwin 4 nomatterwholeavestheroomlastoughttoturnoffthelights 5 itisimportantthatastudentlearnsaforeignlanguage weshall thatyouhave itis whoever shouldlearn 改错练习 达标训练 hemadeanimportantspeechatthemeetingwastrue a thatb whyc whatd how 2 we llgocampingtomorrowdependsontheweather a ifb whetherc thatd where 3 isknowntousallisthatamericaisadevelopedcountry thefirstworld a which belongtob as belongedtoc what belongingtod it belongingto 单项选择 a b c 4 it sknowntousall aformofenergy a waterisb thatwaterisc iswaterd thatwaterto5 itworriedherabit herhairwasturninggray a whetherb thatc whatd when6 whatisayandthink noneofyourbusiness a isb arec hasdhave b b a b c b 7 weneedmorepracticeisobvious a whatb thatc whend 8 theycansolvethequestionisstillunknown a ifb whichc whetherd what9 hesaidatthemeetingastonishedeverybody a whyb whatc thatd who d b 10 isafactthatenglishisacceptedasaninternationallanguage a thereb thisc thatd it11 madetheschoolproudwas morethan90 ofthestudentshadbeenadmittedtokeyuniversities a what becauseb what thatc that whatd that because b b 12 wewillgocampingtomorrowdependsontheweather a ifb whetherc thatd where13 thattheycanpassthewrittenexamthistime a thatishopedb itishopedc ithopesd thathopes c 14 itwasdoubtful maryrea