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从句的分类六大从句类型六大从句的概念主语从句用作主语.Thattheearthisroundistrue.宾语从句用作宾语。Doyouknowwherehelives?表语从句用作表语.Myopinionisthatyoushouldnotgoalone.同位语从句用于解释说明前面的名词,与先行词同位或等同的从句叫作同位语从句。其关联词多为that。Thefactthattheearthisroundistrue.（that从句用于解释说明thefact）从句名词性从句形容词词性从句定语从句副词词性从句状语从句时间状语从句地点状语从句方式状语从句原因状语从句结果状语从句目的状语从句条件状语从句让步状语从句主语从句宾语从句表语从句同位语从句定语从句相当于一个形容词，用于修饰前面的名词。定语从句一般皆放在被它所修饰的名（代）词之后，这种名（代）词就叫作先行词（Antecedent）。引导定语从句的关联词为关系代词和关系副词。关系代词在定语从句中可用作主语、宾语、定语等；关系副词在定语从句中用作状语。ThestudentwhoansweredthequestionwasJohn.状语从句相当于一个副词，修饰主句中的动词,形容词和副词,通常有从属连词引导,按其意义和作用可分为时间,地点,条件,原因,让步,目的,结果,方式,比较.等Whenitrains,Iusuallygotoschoolbybus.Ifhecomestomorrow,youwillseehim.Hereturnedhometolearnhisdaughterhadjustbeenengaged.Youmustspeakloudersothat/inorderthatyoucanbeheardbyall.Since/Astheweatherissobad,wehavetodelayourjourney.从句划分技巧主句和从句的划分方法是相同的。句子的成分从谓语动词处来划分比较容易。谓语动词前面的部分是主语，后面常接宾语，修饰谓语动词的是状语，修饰主语、宾语的是定语，若谓语是系动词，则系动词后的部分是表语。定语从句VS同位语从句定语从句是先行词的修饰语，它不涉及先行词的实质内容，在定规从句中“that”往往充当某一成分且作宾语时可以省略。同位语从句是对中心词的内容作进一步的解释和说明，表明中心词语的具体、实际内容。“that”在同位语从句中不充当任何成分且不可以省略。从句划分练习1.Itisquiteclearthatthecrimewasdowndeliberately.2.Shesuggestedthathedoitatonce.3.Thattheearthisroundistrue．4.Theproblemisnotwhowillgobutwhowillstay.5.ThestudentwhoansweredthequestionwasJohn．6.Haveyouanyideahowsoonthey’recoming.7.Myoriginalquestion,whyhediditatall,hasnotbeenanswered.8.Whenitrains，Iusuallygotoschoolbybus．9.Whatyouneedismorepractice.10.Itisstillaquestionwhenweshallhaveoursportsmeet.11.Ithinkitbestthatyoushouldstayhere.12.Thequestioniswhetheritisworthdoing.14.Wemustfindoutwhodidallthese.15.JackisnomorefrightenedthanMikeis.16.WeexpressedthehopethathewouldcometoChinaagain.17.Thefactthattheearthisroundistrue．18.Therearemanyorganizationswhosepurposeistohelpthehomeless.19.Doyouknowwherehelives?20.Thisisthereasonwhyherefusedtohelpus.21.Suchpeopleasyoudescribearerarenowadays.22.Heissohumorousthatwe’llneverforgethim.23.Myopinionisthatyoushouldnotgoalone．24.IwillstandwhereIcanseetheparadeclearly.25.I’lltakewhoeverwantstogowithmetothetheatre.26.ThenewsthathetoldmewasthatTomwouldgoabroad.27.Ifhecomestomorrow，youwillseehim．28.ThenewsthatTomwouldgoabroadwastoldbyhim.