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1、单项填空单项填空 第第15课时课时 名词性从名词性从句句二二 Have you finished the book? No, Ive read up to _ the children discover the secret cave. (2010全国大纲卷) A. which B. what C. hat D. where D考查宾语从句。up to为介词结构， 后接宾语从句；而句意是 “读到孩子们发现秘密洞穴的地方”， 故用where引导这个宾语从句最合适。思路点拨思路点拨【考点1】名词性从句的种类及连接词 I want to be liked and loved for_ I am in
2、side. A. who B. where C. what D. how Cwhat 引导的宾语从句作for 的宾语， what在从句中作am的表语。 名词性从句具有名词的功能，分为主语从句、宾语从句、表语从句和同位语从句四种。它由以下三种连接词引导： 1. 连词： that, whether, if。2. 连接代词： who, whom, whose, which, what等。3. 连接副词： when, where, why, how等。【考点2】连词that的用法 Keep in mind _ you want others to respect you, you must respe
3、ct others first. A. that when B. that if C. if when D. when if Bthat引导一个宾语从句，宾语从句中又有一个由if引导的条件状语从句。 1. that引导名词性从句时既无词义也不在从句中作任何成分。 2. that引导主语从句、表语从句、同位语从句时一般不可省，引导宾语从句时常可省。但是， and连接两个由that引导的宾语从句时，第一个that可省，第二个that不可省。 3. that从句一般不作介词的宾语。但： in that “因为”， except / but that“除了”例外。【考点3】 whether, if的用
4、法 Its reported that Pakistan is considering _ to continue its information cooperation with the US because the US didnt inform them in advance before they took action to kill Bin Laden. (2011成都七中高三模拟卷) A. what B. how C. whether D. if C在 whether后只能用不定式或接or not，不能接if，即whether to do 或whether or not。 whe
5、ther, if引导名词性从句时，表示“是否”， 不在从句中作任何成分，二者常可通用，但在下面几种情况下一般只用whether: (1)引导主语从句。(2)引导表语从句。(3)引导同位语从句。(4)在动词discuss之后。(5)在介词之后。(6)后面紧跟or not。(7)动词不定式前。【考点4】名词性从句的语序 I really wonder _ will stop Japan from its annual whale hunt in the Antarctic. (2011山西太原五中月考) A. that it is what B. what it is that C. what i
6、s it that D. that is it what B空白处为一宾语从句作动词wonder的宾语。而宾语从句是一个强调句，强调what。由于宾语从句要采用陈述语序，故选B。 名词性从句用陈述语序，为：连词(被修饰语)主语谓语。即主谓不倒装。 【考点5】what与that引导名词性从句的区别 It is not always easy for the public to see _ use a new invention can be of to human life. (2011重庆卷) A. whose B. what C. which D. that B空白处作动词 see 的宾语。
7、宾语从句按顺序为：a new invention can be of what use to human life，疑问词what置前。引导词what在句中既作了引导词，又在句中有实义。 Modern science has given clear evidence _ smoking can lead to many diseases. (2011天津卷) A. what B. which C. that D. where Cthat引导词作前名词evidence的同位语从句引导词。该词只起引导作用，无实义，不可省略。 1. 在名词性从句中，that只起连接主句和从句的作用，在从句中不充当任
8、何成分，本身也没有词义，即从句中不缺少任何成分时用连词that。 2. that在从句中作主语时通常用it作形式主语，而将that从句置于句末作真正的主语。但what不能用it作形式主语。 3. that可引导同位语从句，但what不能。【考点6】由reason作主语时，表语从句的连接词 The reason why he cant go to school is _ he is ill. A. because B. why C. that D. which Creason作主语时，其后的表语从句一般用连词that。 reason作主语时，表语从句所用连词为that, 一般不用because或
9、why等。 【考点7】that引导同位语从句和定语从句的区别_ was known to all that William had broken his promise _ he would never play computer games again. (2011湖南雅礼中学高三月考卷) A. As; which B. As; that C. It; that D. What; that Cit作形式主语，第一个that后引导从句作真正主语。名词promise后接that引导的同位语从句，对前一名词内容进一步补充说明。 Helping others is a habit, one _ you can learn even at an early age. A. it B. that C. what D. who Bone是a habit的同位语。作为定语从句的先行词，后用which或 that作定语从句动词learn的宾语。关系代词作宾语也可省略。 that引导同位语从句时， that在从句中不作成分(一般不省), 且不可用which来取代；that引导定语从句时， that须作主语、宾语或表语(作宾语时常可省), 且常可用which来取代。
