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1、welcome1.ThatiswhatIaminterestedin.2.Ithinkthatyouareverybrave.3.Whatweshoulddonextremainsunknown.4.IlikethenewsthatIpasstheexam.以上句子中,1劃線部分引導(dǎo)_____從句,2劃線部分引導(dǎo)_______從句,3劃線部分引導(dǎo)______從句,4劃線部分引導(dǎo)______從句。表語(yǔ)同位語(yǔ)主語(yǔ)賓語(yǔ)它們統(tǒng)稱為名詞性從句。看看想想塡一填Revision:定語(yǔ)從句的功用:相當(dāng)于一個(gè)形容詞,修飾一個(gè)名詞或代詞(即先行詞)。常緊跟在先行詞后,作定語(yǔ)
2、用。如:Idon’tlikethemanwhowearsabeard.賓語(yǔ)從句的功用:相當(dāng)于一個(gè)名詞,作賓語(yǔ)表語(yǔ)從句的功用:如:Idon’tknowwhereIcangotsomuchmoney.Itdependsonwhetherwehaveenoughmoney.Iamsurethathewillcomethisafternoon.相當(dāng)于一個(gè)名詞,作連系動(dòng)詞如:be,look,taste,seem等后的表語(yǔ)。一、表語(yǔ)從句的定義:表語(yǔ)從句在復(fù)合句中作主句的表語(yǔ)。表語(yǔ)從句和主語(yǔ)指同一內(nèi)容,它對(duì)主語(yǔ)進(jìn)行解釋、說明,使主語(yǔ)的內(nèi)容具體化。二、表語(yǔ)從句的表現(xiàn)形式
3、1.由從屬連詞引導(dǎo)。如:“that”,“whether”Thequestioniswhetherweshouldaskthemforhelp.Thetroubleisthathehasneverdonetheworkbefore.2.由連接代詞引導(dǎo)。如:“what”“who”“whom”“whose”“which”Guilinisnotwhatitusedtobe.Whatshewantstoknowiswhichdresssheshouldbuy.3.由連接副詞引導(dǎo)。如:“when”“why”“where”“how”“because”Thatiswhe
4、reLuXunusedtolive.Thatiswhyhedidn’tpasstheexam.4.另可由asif,asthough引導(dǎo)。如:Itlooksasifitweregoingtorain.一些引導(dǎo)詞的用法(一)that在表語(yǔ)從句中,又。Thefactisthathehasn’tyetrecoverfromillness.Thereasonwhyhehastogoisthathismotherisillinbed.既不充當(dāng)成分沒有意義比較that在定語(yǔ)從句中的用法。TherearesomefilmsthatI’dliketosee.Sheisth
5、eonlystudentthatknowsFrench.結(jié)論:that在引導(dǎo)定語(yǔ)從句時(shí),指事物,也可指人,在從句中作主語(yǔ)或賓語(yǔ),作賓語(yǔ)時(shí)常可省略。一些引導(dǎo)詞的用法(二)What在表語(yǔ)從句中充當(dāng)表示.1.Thequestioniswhatcausedtheaccident.2.Thatmountainisnotwhatitusedtobe.3.Whathetoldyouwaswhathadbeendiscussedatthemeeting.句子成分什么,什么樣子,什么樣子人或事另:what不引導(dǎo)定語(yǔ)從句一些引導(dǎo)詞的用法(三)whether在表語(yǔ)從句中表,但
6、不充當(dāng)句子的成分。if引導(dǎo)表語(yǔ)從句.如:Whatthedoctorreallydoubtsiswhethermymotherwillrecoverfromtheseriousdiseasesoon“是否”不能LiLeiisnowinanewjacket.HelooksasifhewereanAmericanboy.Thegirlisgivingusavividdescriptionofthemoon.Itseemsasifshehadbeentothemoonmanytimes.一些引導(dǎo)詞的用法(四)由asif引導(dǎo)表語(yǔ)從句時(shí)要注意語(yǔ)態(tài).若從句表示與現(xiàn)在事
7、實(shí)相反,謂動(dòng)用,與過去事實(shí)相反用一般過去式(be用were)had+p.p.Thankyou!