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1、welcome名词性从句复习及应用(1)从属连词whetherthat(2)连接代词WhatWhowhichWhomwhosewhateverwhoeverwhichever(3)连接副词whenwhywherehow，if/asif(只用于表语从句）＊只起连接作用，不充当从句中的任何成分。＊既起连接作用，本身又做从句的主语、宾语、表语或定语（whose）。＊既起连接作用，本身又做从句的状语。howmany，howmuch，*名词性从句的特点是从句都有关联词引导,从句的语序和陈述句的语序相同。名词性从句2.宾语从句3.表语从句4.同位语从句1.主语从句这是一本书。Thisisabook.陈述句
2、这是书吗？Isthisabook?疑问句注意：1.主语从句：主语从句+V主从1+主从2+V连词1+连词2+主从+V2.宾语从句：从句时态与主句的时态如从句中表示的是客观现象，则用主语+谓语+that+宾从主语+谓语+that宾从1+that宾从2+that宾从3…3.表语从句:asif只能引导表语从句4.同位语从句：常见词(fact,hope,desire,thought,suggestion,idea,news,problem,doubt,possibility,etc)(单)(复)(单)保持一致一般现在时（）（）thatthat要注意的连接词：1.That和what:That：只起连接作用
3、，不充当任何成分，不可以省略（宾从的特殊情况除外）What:充当主语、宾语、表语2.Whether和if:只用whether的情况：1）whether…ornot2）句首主从，介后宾从，同从，表从3.what,who,which引导的名从都含有疑问意义whatever（=anythingthat）无论什么whoever(=anyonewho）无论谁whichever无论哪个重要句型：1.Thereasonisthat…+(原因)Thatiswhy…+(结果)Thatisbecause+…(原因)【Hewasabsentbecausehewasill.】2.It+be+adj.+that从句(如
4、obvious,true,clear…)It+be+n词组that从句（如nowonder,anhonour…）It+be+P.Pthat从句(如said,reported,thought…)Itoccurs(occured)tosb.That从句Itstrikes(struck)sb.That从句Ithappens(happened)that从句3.主语+动词（think,consider…）+it+宾补（形容词）+that从句请找出以下复合句的名词性从句并分析其类型1.ThequestionwhywemustlearnEnglishhasbeenaskedmanytimes.2.Thati
5、swhereLuXunoncelived.3.Whetheryoucomeornotisuptoyou.4.WethoughtitstrangethatTomdidnotcomeyesterday.5.It’suncertainwhethertheexperimentisworthdoing.（）同位语从句（）表从（）主语从句（）宾语从句（）主语从句Pleasechoosethebestanswer.1.______wecan’tgetseemsbetterthan_____wehave.A.What;what B.What;thatC.That;that D.That;what2--
6、IdrovetoZhuhaifortheairshowlastweek. --Isthat______youhadafewdaysoff?A.whyB.when C.what D.where3--Doyouremember______hecame? --Yes,Ido.Hecamebycar. A.how B.when C.that D.if4.Thereason ___Ihavetogois___mymotherisillinbed．A.why;why B.why;becauseC.why;thatD.that;because5.Whatthedoctorsreal
7、lydoubtis______mymotherwillrecoverfromtheseriousdiseasesoon. A.when B.how C.whether D.why总结：名词性从句引导词的选择三步骤步骤一：如果从句中缺少主语，或者宾语，或者表语，则考虑用连接代词；What,who,which,whose,whatever…步骤二：如果从句中既不缺少主语，宾语，也不缺少表语，但是缺
