名词性从句在复合句中起名词作用的从句叫名词性从句（NounClauses）。名词性从句相当于一个名词词组,它在复合句中能充当主语、宾语、表语、同位语等，因此根据它在句中不同的语法功能，名词性从句又可分为主语从句、宾语从句、表语从句和同位语从句。名词性从句在功能上相当于名词Idon’tlikehisjob.1.Atlunchtime,theradioweathermanreportedthatthemistwouldbecomeathickfogintheafternoon.2.Thetruthisthatthefogistoothickforthebustorunthatfar.3.Whatsurprisedmemostwasthattheoldmancouldn’tseeanything.4.ThefactthatPollydidn’taskfortheman’snameisapity.分析下列宾语从句中的连词找出下列句子中的错误，并总结出规律：7.Ifwewillhaveameetinghasn'tbeendecidedyet.8.Itdependsoniftheweatherissuitableforustodoit.9.Thequestionisifhehimselfwillbepresentatthemeeting.10.HeaskedmeifIcouldgowithhimornot.请你归纳(2)疑问词引导的名词性从句要求使用陈述句语序，不能用一般疑问句语序。二、名词性从句连接词的选用that/what其它连接代词和副词的连用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。Idon’tknow_________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.三、同位语从句的引导和辨别1.Ihavenoidea_________hecomesfrom.2.Hecan’tanswerthequestion________hegotthemoney.3.Hegaveusmanysuggestions________weshouldgetupearlierandtakemoreexercise.4.Ihavenodoubt________hewillwin.5.Ihavesomedoubt________hewillwin.同位语从句和定语从句的区别1.Weexpressedthehopethattheyhadexpressed.2.WeexpressedthehopethattheywouldcometoChinaagain.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可省略宾语从句的时态呼应2.如果主句谓语是过去时,从句谓语动词一般用过去的某种时态,但从句表达的是客观事实、真理、自然规律等时，从句谓语通常用一般现在时。他告诉我他正在为考试做准备。Hetoldme______________________.他说他已离开家乡十年了。Hetoldme______________________.老师告诉我们光是沿直线运行的。Theteachertellus______________________