名词性从句连接词对比使用.ppt

名词性从句连接词的使用,(一)that和what的选用：that和what都可引导所有的名词从句。但是，what除起连接作用外，还在名词性从句中充当成分，可做从句的主语、宾语、或表语。而that在名词性从句中不充当任何成分，只起连接作用。,that/what1._hewantsisabook.2._hewantstogothereisobvious.3.Theresultis_wewonthegame.4.Thisis_wewanttoknow.5.Is_hetoldustrue?6.Weshouldpayattentionto_theteacherissaying.7.Ihavenodoubt_hewillcome.8.Ihavenoidea_hedidthatafternoon.,What,That,that,what,what,what,that,that,(二）if和whether的选用不能使用if的情况：a.主语从句b.表语从句c.同位语从句d.介词后的宾语从句e.whethertodo做动词宾语不能用iftodo.f.whetherornot连在一起引导宾语从句时不用if.,1.Iaskedher_shehadabike.2._wewillholdapartyintheopenairtomorrowdependsontheweather.3.Wereworriedabout_heissafe.4.Idontknow_heiswellornot.5.Idontknow_ornotheiswell.6.Thequestionis_heshoulddoit.7.Thedoctorcanhardlyanswerthequestion_theoldmanwillrecoversoon.8.Idontknow_togo.,whether/if,Whether,whether,whether/or,whether,whether,whether,whether,（三）其它连接代词和副词的连用主要根据名词性从句中的具体意义,正确的选择who、which、when、where、why、how等连接词，这些连接词既具有疑问含义，又起连接作用，同时在从句中充当各种成分。我们何时举行运动会还没有决定。,我们何时举行运动会还没有决定。_weshallholdoursportsmeetingisnotdecided.我不知道昨天谁打破了玻璃。Idontknow_broketheglassyesterday.我不知道他长的什么样子。Ihavenoidea_helookslike.这就是我忘记眼镜的地方。Thisis_Ileftmyglasses.,When,who,what,where,（四）引导词that的省略that可省略的情况：单个宾语从句中的that可省略that不可省略的情况：a.主语从句b.表语从句c.同位语从句d.用it做形式宾语的宾语从句e.并列的宾语从句中的后几个从句的,引导词that不能省略,1.Idontthink_sheiscoming.2.Itisapity_hehasmadesuchamistake.3.Thereasonis_heiscareless.4.Thenews_ourteamwonthematchinspiredus.5.Idontthinkitnecessary_youshouldreadEnglishaloud.6.Hetoldme_hisfatherhaddiedand_hehadtomakealivingalone.,/,that,that,that,that,/,that,五、同位语从句的引导和辨别1.同位语从句的格式：n.+连接词+从句2.能接同位语从句的名词有：fact、idea,news,information,order,belief,suggestion,advice等.3.连接词通常是that,也可根据含义选用whether,what,when,where等来引导同位语从句.,1.Ihavenoidea_hecomesfrom.2.Hecantanswerthequestion_hegotthemoney.3.Hegaveusmanysuggestions_weshouldgetupearlierandtakemoreexercise.4.Ihavenodoubt_hewillwin.5.Ihavesomedoubt_hewillwin.,where,how,that,that,whether,（六）同位语从句和定语从句的区别1.定语从句是先行词的修饰语，它不涉及先行词的具体内容。定语从句中that不但起连接作用，而且在定语从句中充当一个句子成分，充当从句的宾语成分时可省略。2.同位语从句对中心词的内容作进一步的解释和说明，表明中心词的具体内容。引导同位语从句的that在同位语从句中不做任何成分,只起连接作用,无具体含义,且不可省略.,1.Weexpressedthehopethattheyhadexpressed.2.WeexpressedthehopethattheywouldcometoChinaagain.1.Theinformationhasbeenannouncedthatmoremiddleschoolgraduateswillbeadmittedintouniversity.2.Theinformationthatherevealedatthemeetingisofgreatvalue.,（七）名词demand,suggestion,proposal,advice等词后的同位语从句的语气要用虚拟语气,结构为should+do,should可省略HegavemeasuggestionthatI(should)becalmnow.,(八）宾语从句的时态呼应1.如果主句时态是现在时或将来时,从句谓语可根据句意需要而选用任一种时态.a.他相信他的梦想总有一天会实现的.Hebelieves_.b.请告诉我你昨天这个时候在干什么.Pleasetellme_.,hisdreamwillcometrueoneday,Whatwereyoudoingthistimeyesterday,Practice:1.Itnowappears_theyareinneedofhelp.A.thatB.whichC.whatD.how2.Itisgoodnews_theywillarriveinafewdays.A.whichB.whatC.thatD.how3.Thisis_shewasborn.A.whereB.whichC.thatD.what4.Thequestionis_wecantgotheretoday.A.thatB.whatC.whichD.when,5.Thequestionis_itisworthdoing.A.ifB.whetherC.whichD.what6.Thereasonhehasmadesuchgreatprogressis_hehasneverwastedhistime.A.becauseB.whyC.thatD.what7.Mysuggestionis_weshouldturnthelandintoricefields.A.whatB.thatC.whichD.where,8.Hisproposalisthatthedam_atthefootofthemountain.A.buildB.willbuildC.bebuiltD.willbebuilt9.Weallknowthetruth_theearthgoesroundthesun.A.thatB.whichC.whatD.whether10.Weheardthenews_ourteamhadwon