名词性从句-2025-2026学年高中英语必修三语法知识点全解（北师大版）

高中必修3北师大版 【语法专版】 名词性从句全解 语法专项 名词性从句 北师大版·必修3Unit7 考频分析 北师大版必修3-U7中，名词性从句是重点语法模块，考频占句法总量的15%左右，贯穿试卷核心 题型：单项选择2-3题、完形填空1-2题、语法填空23题、书面表达核心考察，直接影响句子结 构完整性与逻辑表达。在语境理解类题目中，名词性从句的连接词选用及语序往往是解题关键。 考查内容 ·从句类型辨析：主语从句、宾语从句、表语从句、同位语从句的引导词选择(that,if/whether,,特殊 疑问词)与功能判断 。引导词用法：连接代词(what,who,which等)与连接副词(when,where,why,how)的语法功能及 指代意义 。时态与语序：从句中时态与主句的呼应规则，陈述语序的严格遵循（尤其特殊疑问词引导的从句） 知识点一：名词性从句的分类及基础用法 1.主语从句（在句中作主语） 1.引导词：hat(无意义，不充当成分)、whether(是否)、连接代词(what/who/.which)、连接副词 (when/where/why/how) 2.例句： 。That she will come is certain.(that引导，无意义，不作成分) ·What he said surprised us.(what引导，在从句中作宾语) 2.宾语从句（在句中作宾语，常位于及物动词、介词或形容词后） 1.l导词：that(可省略)、if/whether(是否)、连接代词(what/who/which)、连接副词(when/where/why/how) 2.例句： ●I think(hat)he is right.(that引导，可省略) 1 高中必修3北师大版 【语法专版】 名词性从句全解 。She asked me where I lived.(where引导，在从句中作地点状语) 3.表语从句（在句中作表语，位于系动词后） 1.引导词：that(无意义，不充当成分)、whether(是否)、连接代词(what/who/.which)、连接副词 (when/where/why/how)、as if/as though(好像) 2.例句： ·The fact is that he lied.(that引导，无意义，不作成分) ·This is where we met for the first time..(where引导，在从句中作地点状语) 4.同位语从句（在句中作同位语，解释说明名词的具体内容，常位于抽象名词 后如news/fact/idea/hope等) 1.引导词：that(无意义，不充当成分)、whether(是否) 2.例句： 。We heard the news that our team had won.(that引导，解释news的内容，不作成分) ●There is some doubt whether he will arrive on time.(whether引导，解释doubt的内容) 知识点二：名词性从句的分类与用法 1.主语从句（在复合句中作主语，通常位于句首或用t作形式主语） 1.连接词：that（无意义，不充当成分)、whether(是否)、what(什么，所…的事)、who(谁)、when (何时)、where(何地)、why(为什么)、how(如何) 2.基本结构： ·结构1：连接词+主语+谓语+其他（直接作主语） ·结构2：It+be+形容词/名词/过去分词+连接词+主语+谓语+其他(it作形式主语) 3.例句： ●What he said is true.(what在从句中作宾语，意为“他所说的话”) ·It is important that we learn English well.(that无意义，it为形式主语) 2.宾语从句（在复合句中作及物动词、介词或某些形容词的宾语) 1.连接词：that(可省略，无意义，不充当成分)、whether/if(是否)、what、who、whom、whose、when、 where、why、how 2.时态规则：主句为一般现在时，从句根据实际情况用任意时态：主句为一般过去时，从句用相应过 去时态（客观真理除外） 2 高中必修3北师大版 【语法专版】 名词性从句全解 3.例句： ●She said(hat)she would visit her grandma next week.(主句一般过去时，从句用过去将来时) 。Idon't know whether/if he will come..(whether/if意为“是否"”) 知识点三：名词性从句 1.主语从句 l.That+陈述句→例句：That she passed the exam surprised everyone. 2.What+陈述句→例句：What he said is very important.. 3.How+陈述句→例句：How we solve the problem remains unknown. 2.宾语从句 1.动词+that从句→例句：I think that English is useful. 2.动词+what/when/where从句→例句：She asked where the library is, 3.动词+whether/if从句→例句：He wonders if he can go with us. 考法精析 考法一：引导词hat与what的区分 核心：根据从句是否缺成分及语义需求，区分使用hat(无意义、不充当成分)和wht(充当成分， 含“…的事情/东西”之意) 真题1（语法填空)： -he failed the exam surprised all of us. 答案：That 解析：从句“he failed the exam”结构完整，不缺成分，且无“…的事情”之意，需用that引导主 语从句，hat无意义且不充当成分。 真题2（单项选择）： -matters most in learning English is enough practice. A.That B.What C.Which D.Who 答案：B 解析：从句“matters most in learning English”缺少主语，需用what引导主语从句，what在从句中 作主语，表“…的事情” 考法二：引导词与语序结合 3 高中必修3北师大版 【语法专版】 名词性从句全解 核心：根据从句类型及成分选择正确引导词，并确保从句使用陈述语序 真题1（语法填空）： Could you please tell me-the nearest post office is?I need to send a letter. 答案：where 解析：空格处引导宾语从句，从句中缺少地点状语，应用连接副词where:.且从句需用陈述语序 真题2（单项选择）： -he will come to the party or not depends on his parents'permission. A.If B.What C.That D.Whether 答案：D 解析：空格处引导主语从句，结合”or not'”可知应用whether:if不能引导主语从句 解题小妙招 that what区分妙招 从句成分先判断，不缺成分用hat: 缺主宾表语用what,“…的事/物”含义加。 引导词与语序妙招 名词性从句先辨清，引导词选看成分： 陈述语序要牢记，“引导词+主谓”是规律： whether常与or not连，if不用引导主从间。 引导词与时态语态综合妙招 名词性从句类型辨，that what whether分清楚： 主从时态要呼应，主句过去从也过： 被动语态be关键，done跟着be后面 真题演练 演练一：单项选择试题（共10题） 1.-he will attend the meeting or not is still unknown. A.If B.What C.That D.Whether 2.The teacher always tells us-we should do our best to help others. A.that B.what C.how D.which 3.-surprised me most was-he spoke English so fluently A.That;that B.What:what C.What:that D.That:what 4.There is no doubt_the project will be finished on time with our efforts. A.if B.whether C.that D.what 5.She asked meI had seen her keys,but I told her I didn't know. A.that B.if C.which D.what 高中必修3北师大版 【语法专版】 名词性从句全解 6.breaks the school rules will be punished,no matter who it is. A.Whoever B.Whatever C.Whichever D.Wherever 7.The facthe failed the exam again made his parents very angry. A.which B.why C.that D.what 8.It is necessary-we should learn to protect the environment. A.that B.what C.whether D.how 9.The problem is-we can get enough money to support this plan A.if B.that C.whether D.what 10.My parents suggested that Ia part-time job during the summer vacation. A.will take B.take C.took D.had taken 演练二：填空试题（共10题） 1.Idon't know_he will come tomorrow.(是否) 2.一you said just now made me very happy.(你说的话) 3.The news.一our team won the game spread quickly.(解释“消息”的内容) 4.Could you tell me_the nearest bank is?(哪里) 5.It is important-we should keep calm in danger.(that/what) 6.She has no idea_to solve this math problem. 7.There is some doubt_he will keep his promise.( 8._broke the window should apologize to the teacher.(任何…的人) 9.The question is_the meeting will be held next Monday.( 10.He asked me_I had finished my homework.( 演练三：语法填空试题（共10空) 阅读下面短文，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。 It is known to all-(1)learning English well is important for students.However,many students wonder _(2)they can improve their English quickly.Some believe_(3)the best way is to memorize as many words as possible,while others think-(4)matters most is practicing speaking every day. Last week,our teacher suggested that we_(5)(join)an English club.She said-(6)the club would provide us with more chances to communicate with foreigners.I'm not sure_(7)I can spare enough time for it,but I hope_(8)I can try my best. The fact(9)English is widely used in the world makes us realize its importance.No one doubts_(10) we will make progress if we keep working hard. 高中必修3北师大版 【语法专版】 名词性从句全解 答案区 演练-：1D2.A3.C4.C5B6.A7.C8.A9.C10B 1.if/whether 2.What 3.that 4.where 5.that 6.how 7.whether 8.Whoever 9.whether 10.if/whether 演练三：1.that2how3that4.what5.(should)join6.that7.whether8.that9.that10.that 6