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高考英语
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专题十一 名词性从句
01
基本用法
名词性从句相当于名词，可作主句的主语、表语、宾语和同位语。因此，名词性
从句可分为主语从句、表语从句、宾语从句和同位语从句。
引导词类别 常见引导词 作用
连接代词 what, which, who, whose, whom, whatever, whichever, whoever, whomever 有词义，在从句中作主语、表
语、宾语或定语
连接副词 how, when, where, why, however, whenever, wherever 有词义，在从句中作状语
引导词类别 常见引导词 作用
连接词 that, whether, if, because, as if/though 除that外均有词义，在从句中不作
成分，只起连接作用
02
1.引导词
在复合句中充当主语的从句叫作主语从句。主语从句的常见引导词有：
（1）连接词： that, whether, if
（2）连接代词： what, which, who, whose, whom, whatever, whichever, whoever, whomever
（3）连接副词： how, when, where, why, however, whenever, wherever
2.it作形式主语
在通常情况下，that引导主语从句时，常用it作形式主语，而将that引导的主语从句置于句尾。用it作形式主语通常有以下四种句型：
（1）It+be+形容词（necessary/important/obvious等）+从句
（2）It+be+过去分词（believed/known/decided等）+从句
（3）It+be+名词（短语）（a surprise/a fact/common knowledge等）+从句
（4）It+不及物动词/动词短语（happens/occurs to sb.等）+从句
主语从句
03
1.引导词
在复合句中充当宾语的从句叫作宾语从句。宾语从句的常见引导词有：
（1）连接词： that, whether, if
（2）连接代词： what, which, who, whose, whom, whatever, whichever, whoever, whomever
（3）连接副词： how, when, where, why, however, whenever, wherever
2.it作形式宾语
（1）动词（think/consider/find/make等）+it+adj./n.+that ...（2）take it for granted that ... 认为……理所当然（3）depend/rely on it that ... 指望/相信……（4）see to it that ... 务必/保证……
3.宾语从句的语序
宾语从句的语序是陈述句语序，即“引导词 +主语+谓语+其他”。 但若动词think,
believe, suppose, expect等后接宾语从句，从句中的否定词经常前移。
宾语从句
04
1.引导词
在复合句中充当表语的从句叫作表语从句。可接表语从句的连系动词有be, seem, look, sound, taste, feel, remain, appear等。表语从句的常见引导词有：
（1）连接词： that, whether, because, as if/though
（2）连接代词： what, which, who, whose, whom, whatever, whichever, whoever, whomever
（3） 连接副词： how, when, where, why
2.几种特殊的表语从句
（1）as if/though 引导的表语从句
常出现在seem, look, sound, taste, feel, appear等连系动词后，从句可用陈述语气，也可虚拟语气。
（2）because和why引导的表语从句
This/That is why ... 这/那是……的原因 This/That is because ... 这/那是因为……
注意：主句主语是reason时，表语从句一般由that引导，而不用because或why。
表语从句
05
同位语从句在复合句中作同位语，一般跟在名词后，进一步说明该名词的具体内容。同位语从句的引导词有that, whether, who, what, where, when, why, how等。
1.that引导的同位语从句
that在从句中只起连接作用，不充当任何成分，一般不能省略。
2.whether引导的同位语从句
whether意为“是否”，在句中不作成分，不可省略，也不能用if替换。
3.其他连接代词和连接副词引导的同位语从句
who, what, where, when, why, how引导同位语从句，在从句中充当句子成分。
4.后跟同位语从句的常见名词
这类名词包括：fact, idea, news, message, information, promise, belief, condition, doubt, fear, hope, evidence, request, demand, chance, opinion, proof, question, possibility, report, impression, suggestion, thought, truth, warning, word等。
同位语从句
06
（1）主语从句和宾语从句置于句首
（2）引导表语从句和同位语从句
（3）引导介词后的宾语从句
（4）引导词直接与or not连用
（5）有些动词如discuss等后的宾语从句
（6）避免用if引导产生歧义
用whether而不用if的情况
Whether we will go camping depends on the weather.
He must answer the question whether he will attend the meeting.
Everything depends on whether we have free time.
He doesn't know whether or not he is going to stay.
We discussed whether we should hold a meeting.
Let me know whether you are coming to our party.
1.【2025北京卷】The truth, though, is ________ could be guessed — there’s never anyone else here. Just me, Nick, and the quiet forest.
2.【2024年全国甲卷】On a cool, starry night in mid - September 1870, four men relaxed before a campfire along the Firehole River in 43__________ is now northwestern Wyoming.
3.【2024年全国Ⅰ卷】While they are rare north of 88°, there is evidence__________they range all the way across the Arctic, and as far south as James Bay in Canada.
07
高考真题
what
what
that
4.【2024年全国Ⅲ卷】I am not sure___________is more frightened, me or the female gorilla that suddenly appears out of nowhere.
5.【2024年江苏卷】It is not a problem___________we can win the battle; it’s just a matter of time.
6.【2024年天津卷】The student completed this experiment to make come true______Professor Joseph had said.
7.【2023年新高考II卷】This is 62__________ they need an English trainer.
07
高考真题
who
whether
what
why
8.【2023年北京卷】The best moment for the football star was________he scored the winning goal.
9.【2023年北京卷】Some people believe________has happened before or is happening now will repeat itself in the future.
10.【2023年浙江3月卷】Recently, scientists have started a debate on _______the computers will “think” like human in half a century.
07
高考真题
when
whatever
whether
1.【2025·沧州市普通高中高三复习质量监测】The traditional view ________ flower and plant buyers are mainly those with plenty of free time has changed in recent years. Busy urban consumers have found joy in tending to flowers and house plants in their leisure time.
2.【2025·四川省四川师范大学附属中学月考】It is quite important for us to apply ____________we have learned to practice.
3.【2025·黑龙江省哈尔滨市德强高级中学高三月考】The power of AI lies exactly in ____________is often considered as its weakness.
08
最新试题
that
what
what
4.【2025·江苏省泰州市兴化市月考】Talk to her and decide ______________this friendship is still important to you.
5.【2025·四川省成都外国语学校月考】Leaves contain certain temperature sensitive chemicals. That’s ___________the leaves change color in the fall.
6.【2025·吉林省东北师范大学附属中学高三第一次摸底】The decision was made _____we should have some school trips this term.
08
最新试题
whether/if
why
that
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