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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(dāng)于名詞詞組,它在復(fù)合句中能擔(dān)任主語、賓語、表語、同位語等因此根據(jù)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.Whathesaidisinteres
2、ting.Iheardhisstory.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/whome
3、ver/whichever，連接副詞:where/when/why/how/wherever/whenever引導(dǎo)詞句型轉(zhuǎn)換1.Theyaregooddoctors.Hetoldus.→2.Hehadn’tsaidanythingatthemeeting.Thefactsurprisedus.→Hetoldusthattheyweregooddoctors.Thefactthathehadn’tsaidanythingatthemeetingsurprisedus.總結(jié)：當(dāng)從句原來是陳述句時(shí)，變成名詞
4、性從句用that引導(dǎo)。3.Doesyoursistergetupearly?Doyouknow?→4.Doanimalshavethesamesensesashumans?Ioftenwonder.→Doyouknowif/whetheryoursistergetsupearly?Ioftenwonderif/whetheranimalshavethesamesensesashumans.總結(jié)：當(dāng)從句原來是一般疑問句時(shí)，變成名詞性從句用if或whether引導(dǎo)。5.Whendidhebuythisne
5、wbike?Couldyoutellme?→6.Myquestionisthis:wherewillthelecturebegiven?→Couldyoutellmewhenheboughtthisnewbike?Myquestioniswherethelecturewillbegiven.總結(jié)：當(dāng)從句原來是特殊疑問句時(shí)，變成名詞性從句還用原來的特殊疑問詞來引導(dǎo)。總結(jié)：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(gè)引導(dǎo)詞，除賓語從句的that外其他均不能省略。其結(jié)構(gòu)為引導(dǎo)詞+陳述語序Pred
6、icativeClauses表語從句表語從句的定義：表語從句在復(fù)合句中作主句的表語。表語從句和主語指同一內(nèi)容，它對(duì)主語進(jìn)行解釋、說明，使主語的內(nèi)容具體化。結(jié)構(gòu)是“主語+系動(dòng)詞+表語從句”。可以接表語從句的系動(dòng)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.Thequestioniswhetherwecanrelyonhi
7、m.2.That’sbecausewewereinneedofmoneyatthattime.3.Helookedasifhewasgoingtocry.4.That’swhyIwaslate.引導(dǎo)詞的用法（一）that在表語從句中,又。Thefactisthathehasn’tyetrecoverfromillness.Thereasonwhyhehastogoisthathismotherisillinbed.既不充當(dāng)成分沒有意義whether在表語從句中表,但不充當(dāng)句子的成分。if引導(dǎo)表語從句.
8、如:1.Whatthedoctorreallydoubtsiswhethermymotherwillrecoverfromtheseriousdiseasesoon.2.Thequestioniswhetheritisworthdoing.“是否”不能引導(dǎo)詞的用法（二）what在表語從句中充當(dāng)______________表示____________________________.1.Thequestioniswhatcausedtheaccident.
