高中英语名词性从句教学课件PPT课件下载推荐.ppt
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连接词有:
thatwhether和和lf2.连接代词有:
连接代词有:
whowhomwhosewhichwhat等等3.连接副词有:
连接副词有:
whenwherewhyhow等等另外另外whateverwhoeverwhichever等等也可也可以引导以引导主语和宾语两种从句主语和宾语两种从句。
名词性从句可以表示:
事实和问题。
名词性从句中的名词性从句中的“that”没有词义,也不作任何成没有词义,也不作任何成分。
分。
1.主语从句:
从句在句中充当主语成分主语从句:
从句在句中充当主语成分1).Thathewillsucceediscertain.2)Whetherhewillgothereisnotknown.3)Whathesaidisnottrue.4)Wherehehidthemoneyistobefoundout.5)Whoevercomesiswelcome.6)Itscertainthathewillsucceed.7)Howwecanhelpthetwinswillbediscussedatthemeeting.8)Whentheyllstarttheprojecthasnotbeendecidedyet.It的用法:
的用法:
(形式主语)(形式主语)Itpossible/important/necessary/clearthat很可能很可能/重要的是重要的是/必要的是必要的是/很清楚很清楚Itsaid/reportedthat.据说据说/据报道据报道Itsbeenannounced/declaredthat.已经通知已经通知/宣布宣布Itseems/appears/happens.that显然、明显、显然、明显、碰巧碰巧.Itsnowonderthat并不奇怪并不奇怪/无疑无疑Itsapity/afact/acommonknowledge(众所周知)众所周知)/acommonsaying.(俗话说)俗话说)注注意:
意:
1.Whatyouleftareonlyseveraloldbooks.2.Whatyousaidisofgreatimportance.3.Whathesaysanddoesdoesntconcernme.4.Whathesaysanddoesdontagree.“if”不能引导主语从句,应有不能引导主语从句,应有“whether”引引导。
导。
主语从句的主语从句的“that”一般不能省。
一般不能省。
“what”引导主语从句时,谓语动词:
引导主语从句时,谓语动词:
1)常与其后的名词作表语一致)常与其后的名词作表语一致2)根据句子的语境而定。
)根据句子的语境而定。
1._hemadeanimportantspeechatthemeetingwastrue.2.A.ThatB.WhyC.WhatD.How2._wellgocampingtomorrowdependsontheweather.AIfBWhetherCThatDWhere3._isknowntousallisthatAmericaisadevelopedcountry_theFirstWorld.a.Which;
belongtob.As,belongedtob.c.What;
belongingtod.It;
belongingto4.Itsknowntousall_aformofenergy.A.waterisB.thatwaterisC.iswaterD.thatwaterto5.Itworriedherabit_herhairwasturninggray.A.whetherB.ThatC.whatD.when6.WhatIsayandthink_noneofyourbusiness.A.isB.areC.hasDhave2.宾语从句:
从句在句中充当宾语成分(宾语从句:
从句在句中充当宾语成分(可以作谓语可以作谓语动词、介词、不定式等非谓语动词的宾语)动词、介词、不定式等非谓语动词的宾语)连词:
连词:
that,whether,if(that常可省略)常可省略)who,what,which,whoever,whatever,whenwherewhyhow1).Theyknowthatthehabitwillkillthem.2).Italldependsonwhethertheywillsupportus.3)HeaskedhowmuchIpaidfortheviolin.4).Hemadeitcleartothepublicthathedidanimportantandnecessaryjob.5).Ifinditnecessarythatweshoulddothehomework.注注意:
1、当主句的谓语动词是一般现在时或一般将来时,宾当主句的谓语动词是一般现在时或一般将来时,宾语从句的谓语动词可以用所需要的任何一种时态。
语从句的谓语动词可以用所需要的任何一种时态。
2、当主句的谓语动词是一般过去时,宾语从句的谓语、当主句的谓语动词是一般过去时,宾语从句的谓语动词要用相应的过去时态,但当宾语从句叙述的内容动词要用相应的过去时态,但当宾语从句叙述的内容为客观真理时,仍然用一般现在时。
为客观真理时,仍然用一般现在时。
Theteachertoldhisclassthatlight_fasterthansound.travels1.Theradiosaysit_cloudytomorrow.(be)2.Theheadmasterhopeseverything_well.(go)3.Tomsaysthatthey_(play)basketballatsixoclockyesterdayevening.4.Ihearthey_(return)italready.5.Hesaidthatthey_membersofthePartysince1948.(be)willbegoeswereplayinghavereturnedhadbeen6.Ididntknowwhattimehe_theletter.(write)7.Couldyoutellmewho_awaythebookalready?
(take)8.LingFengtoldmehe_totheGreatWallseveraltimes.(be)wrotehastakenhadbeen3.表语从句:
从句在句中充当表语成分,一般放在连表语从句:
从句在句中充当表语成分,一般放在连系动词之后系动词之后.作用:
对主语进行解释说明。
作用:
连接词:
that/whether/asif/asthough(if不引导不引导表语从句表语从句)连接代词:
连接代词:
who/whom/whose/which/what连接副词:
连接副词:
when/where/why/how/becauseThequestioniswhetherwecanrelyonhim.Thatsbecausewewereinneedofmoneyatthattime.Helookedasifhewasgoingtocry.ThatswhyIwaslate.注注意:
1.在表语从句中,表在表语从句中,表“是否是否”时,只能用时,只能用“whether”不能用不能用“If”。
2.一般情况下,一般情况下,“that”不能省。
不能省。
3.Itis/wasbecause.4.Itis/waswhy.5.3.Thereason(why/for)is/wasthat.6.4Thereasonisbecause/whythat.1.Thats_thePartycalledonustodo.A.whyB.whatC.howD.that2.Thereasonis_heisunabletooperatethemachine.A.becauseB.whyC.thatD.Whether3.Thatis_theyseparated.A.thatB.whatC.whichD.where4.Janeisnolonger_shewasfouryearsago.A.whatB.whichC.thatD.when4同位语从句:
从句在句中充当同位语成分,其一般跟同位语从句:
从句在句中充当同位语成分,其一般跟在一些抽象名词(在一些抽象名词(idea;
belief;
fact;
truth;
problem;
news等)后面,对名词作进一步解释说明等)后面,对名词作进一步解释说明.同位语从句常用同位语从句常用that引导或用连接副词引导或用连接副词when/where/why/how/whether1)Theideathatcomputerscanrecognizehumanvoicessurprisesmanypeople.2)WordcamethatNapoleonhimselfwascomingtoinspectthem.3).SydneykepthispromisethathewouldalwaysdoanythinghecouldforLucietomakesureofherhappiness.Ihavenoideawhenhewillbeback.howhecangetthetreasure.wheretheconcertwillbehold.whocan