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1、什么叫名詞性從句？在句子中起名詞作用的句子叫名詞從句(NounClauses）名詞從句的功能相當于名詞詞組,它在復合句中能擔任主語、賓語、表語、同位語等因此根據它在句中不同的語法功能，名詞從句又可分別稱為主語從句、賓語從句、表語從句和同位語從句名詞性從句nounclause主語從句subjectclause賓語從句objectclause表語從句predicativeclause同位語從句appositiveclauseHisstoryisinteresting.Whathesaidisinteresting.Ihea
2、rdhisstory.Iheardwhathesaid.Ilistentohisstory.Ilistentowhathesaid.Thisishisstory.Thisiswhathesaid.Theideaofgoingthereisgood.Theideathatweshouldgothereisgood.名詞性從句中的連接詞連詞:that/whether/asif(though);連接代詞:what/who/which/whose/whatever/whoever/whomever/whichever，連接副詞
3、:where/when/why/how/wherever/whenever引導詞句型轉換1.Theyaregooddoctors.Hetoldus.→2.Hehadn’tsaidanythingatthemeeting.Thefactsurprisedus.→Hetoldusthattheyweregooddoctors.Thefactthathehadn’tsaidanythingatthemeetingsurprisedus.總結：當從句原來是陳述句時，變成名詞性從句用that引導。3.Doesyoursister
4、getupearly?Doyouknow?→4.Doanimalshavethesamesensesashumans?Ioftenwonder.→Doyouknowif/whetheryoursistergetsupearly?Ioftenwonderif/whetheranimalshavethesamesensesashumans.總結：當從句原來是一般疑問句時，變成名詞性從句用if或whether引導。5.Whendidhebuythisnewbike?Couldyoutellme?→6.Myquestionis
5、this:wherewillthelecturebegiven?→Couldyoutellmewhenheboughtthisnewbike?Myquestioniswherethelecturewillbegiven.總結：當從句原來是特殊疑問句時，變成名詞性從句還用原來的特殊疑問詞來引導?？偨Y：名詞性從句必須用陳述句語序。所有名詞性從句要有且僅有一個引導詞，除賓語從句的that外其他均不能省略。其結構為引導詞+陳述語序PredicativeClauses表語從句表語從句的定義：表語從句在復合句中作主句的表語。表語從
6、句和主語指同一內容，它對主語進行解釋、說明，使主語的內容具體化。結構是“主語+系動詞+表語從句”?？梢越颖碚Z從句的系動詞有be,look,remain,seem等。連接詞：that/whether/asif/asthough連接代詞：who/whom/whose/which/what連接副詞：when/where/why/how/because1.Thequestioniswhetherwecanrelyonhim.2.That’sbecausewewereinneedofmoneyatthattime.3.Heloo
7、kedasifhewasgoingtocry.4.That’swhyIwaslate.引導詞的用法（一）that在表語從句中,又。Thefactisthathehasn’tyetrecoverfromillness.Thereasonwhyhehastogoisthathismotherisillinbed.既不充當成分沒有意義whether在表語從句中表,但不充當句子的成分。if引導表語從句.如:1.Whatthedoctorreallydoubtsiswhethermymotherwillrecoverfromth
8、eseriousdiseasesoon.2.Thequestioniswhetheritisworthdoing.“是否”不能引導詞的用法（二）what在表語從句中充當______________表示____________________________.1.Thequestioniswhatcausedtheaccident.
