专题12 主语从句（专项训练）（北京专用）2027年高考英语一轮复习讲练测

**基本信息** 以“口诀+公式+避坑清单”构建主语从句方法体系，从基础连词到高阶写作层层递进，强化语言能力与思维品质 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |模拟·基础演练|10道连词填空+写作万能公式|核心解题口诀（连词选用规则）、写作公式（It+adj./n.+that等）|从连词概念（that/what/whether区别）到基础写作应用，构建“规则-示例”认知链| |重难·创新演练|填空/语法填空/写作升级|It作形式主语用法、写作避坑清单（句首不用if等）|通过语篇填空综合应用连词，结合写作升级训练实现从基础到高阶的能力迁移| |真题·实战演练|高考真题实例|高频考点（连词选择、写作应用）|对接高考命题趋势，强化真题情境下的知识运用与思维分析能力|

第12讲 主语从句 目 录 模拟·基础演练 1 重难·创新演练 3 真题·实战演练 7 模拟·基础演练 考查重点：主语从句的连词、主语从句的写作 考向01 主语从句的连词 填入一个合适的词 核心解题口诀： 从句做主是主从，句首不用if； 从句完整用that/whether，缺主宾用what； It作形式主语是高频考点。 1. ____ he will attend the meeting hasn’t been decided yet. 2. ____ is known to all is that the earth is round. 3. ____ we need most is more time for practice. 4. ____ it will rain tomorrow makes us worried. 5. It is obvious ____ reading benefits teenagers greatly. 6. ____ breaks the rule will be punished. 7. It remains unknown ____ the sports meeting will be held. 8. ____ you said just now is totally wrong. 9. It is a pity ____ you missed the wonderful lecture. 10. ____ we can finish the task on time depends on our efforts. 考向02 主语从句的写作 一、万能公式：It + adj./过去分词/名词 + that 从句 特点：句子平稳、地道、满分质感，适合开头观点、中间论证、结尾总结。 1. 观点评价类（议论文万能开头） It is obvious that … 显而易见…… It is obvious that reading plays an essential role in our personal growth. 显而易见，阅读对我们的个人成长至关重要。 It is clear that … 很明显…… It is clear that teamwork contributes to our success. It is true that …的确…… It is true that challenges can shape our character. 2. 情感态度类（书信/演讲稿） It is a pity that … 遗憾的是…… It is a pity that you missed the meaningful activity. It is amazing that … 令人惊喜的是…… It is amazing that we have made such great progress. 3. 客观事实类（论证加分） It is reported that … 据报道…… It is widely believed that …人们普遍认为…… It is no wonder that … 难怪…… 4. 建议类（书信高频+虚拟语气） It is suggested that sb. (should) do sth. It is suggested that we (should) balance our study and relaxation. 建议我们平衡学习与放松。 第二类：句首主语从句（高阶亮眼｜冲刺满分） 1. That 引导（陈述事实、升华观点） 公式：That + 完整句子 + 谓语 That we keep working hard matters greatly. 我们坚持努力这件事，至关重要。 That kindness can warm the world is always true. 善意温暖世间，这一点永远属实。 2. What 引导（最提分！表“……的东西/事情”） 公式：What + 从句（缺主/宾）+ 谓语 What matters most is persistence. 最重要的东西是坚持。（秒杀低级：I think persistence is important） What we learn from experience will benefit us lifelong. 我们从经历中学到的东西将使我们终身受益。 3. Whether 引导（不确定性观点） Whether we succeed depends on our efforts. 我们是否成功，取决于自身努力。 4. 特殊连接词（拔高句型） How we face difficulties shapes our future. 我们面对困难的方式，塑造我们的未来。 Whoever holds on to dreams will finally succeed. 任何坚守梦想的人终将成功。 重难·创新演练 It作形式主语 一、填入1个合适的词 1. It is no wonder ____ he has made great progress recently. 2. ____ we should solve the problem is worth discussing. 3. ____ makes me happy is to help others in need. 4. It is uncertain ____ he will accept our invitation. 5. ____ has knowledge can contribute to society. 6. ____ he refused the offer surprised all of us. 7. It is clear ____ teamwork plays a key role in success. 8. ____ we will go for a picnic this weekend is not fixed. 9. ____ you learn from mistakes matters a lot. 10. It is doubtful ____ the plan will work well. 二、单句语法填空 1. ____ he will choose to study abroad depends on his family’s decision. 2. It is suggested ____ we (should) take more exercise every day. 3. ____ we achieve our dreams requires constant efforts. 4. ____ is worth doing is worth doing well. 5. It remains to be seen ____ the new policy will bring benefits. 6. ____ helped me with my study is a kind stranger. 7. ____ he said nothing at the meeting made us confused. 8. It is amazing ____ he has mastered three foreign languages. 9. ____ way we take, we must stick to our original intention.（改错式主语从句考点） 10. ____ the accident happened is still under investigation. 三、语法填空 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Passage 1 1. ____ makes a person successful is not talent alone. It is widely believed 2. ____ persistence and hard work play a decisive role. 3. ____ we can keep working hard determines our future achievements. It remains unknown 4. ____ we will meet more difficulties on the way to success, but 5. ____ we should never give up is always true. Passage 2 1. ____ our school will hold an English festival excites all students. It is clear 2. ____ this activity can enrich our after-school life. 3. ____ will take part in the speech competition has not been announced. It is doubtful4. ____ we can finish the preparation in time. But5. ____ we gain experience from the activity is the most valuable. Passage 3 1. ____ environmental protection matters greatly is common sense. It is reported 2. ____ more young people are joining green activities. 3. ____ we can protect our planet well depends on everyone’s efforts. It is unknown 4. ____ new environmental policies will be carried out. But 5. ____ we should protect nature is never wrong. 四、主语从句的写作 1、升级对比（低分句→主语从句满分句） 普通句：I think practice is very important. 满分主语从句：__________________________________________________ is constant practice. 普通句：Hard work helps us succeed. 满分主语从句：__________________________________________________leads to our final success. 普通句：It is certain that teamwork is important. 满分主语从句：It is obvious__________________________________________________. 2.四大高考场景「直接背诵万能句」 1. 议论文开头（观点引入） 人们普遍认为积极的心态能带给我们无尽的力量。 It is widely believed __________________________________________________. 2. 中间论证（讲道理） 我们从困境中收获的不仅是经验，更是更强大的意志力。 __________________________________________________ is not experience alone, but stronger willpower. 3. 书信建议（高端得体） 建议我们充分利用课余时间。 It is suggested__________________________________________________. 4. 结尾升华（万能收尾） 所有努力皆有回报，这是亘古不变的真理。 __________________________________________________ is an unchangeable truth. 五、主语从句写作避坑清单（考场零失误） 1. 句首主语从句表“是否”，只用 whether，禁用 if 2. 句首 That 不可省略（宾语从句可省，主语从句不行） 3. What 必须在从句中充当主语/宾语，从句缺成分才用 4. It is suggested that 从句一定要用 (should) do 虚拟语气 5. 所有主语从句一律用陈述语序，无疑问语序 真题·实战演练 高频考点：主语从句的连词、主语从句的写作 考向01主语从句的连词 1.（2026·北京丰台·一模）____15____ this qualification offers are the tools and thinking styles ____16designed___ (design) to help you make sense of complex information. 考向02 主语从句的写作 1．（2022·全国乙卷）不难看出，选择听英文歌曲和看英文电影的学生占比分别为 65% 和 50%。(运用it作形式主语，that引导主语从句以及who引导的定语从句) It can easily be seen _______________________________________________________________ 20 / 20网（北京）股份有限公司 学科网（北京）股份有限公司zxxk.com 学科网（北京）股份有限公司zxxk.com 学科网（北京）股份有限公司 $ 第12讲 主语从句 目 录 模拟·基础演练 1 重难·创新演练 3 真题·实战演练 7 模拟·基础演练 考查重点：主语从句的连词、主语从句的写作 考向01 主语从句的连词 填入一个合适的词 核心解题口诀： 从句做主是主从，句首不用if； 从句完整用that/whether，缺主宾用what； It作形式主语是高频考点。 1. ____ he will attend the meeting hasn’t been decided yet. 2. ____ is known to all is that the earth is round. 3. ____ we need most is more time for practice. 4. ____ it will rain tomorrow makes us worried. 5. It is obvious ____ reading benefits teenagers greatly. 6. ____ breaks the rule will be punished. 7. It remains unknown ____ the sports meeting will be held. 8. ____ you said just now is totally wrong. 9. It is a pity ____ you missed the wonderful lecture. 10. ____ we can finish the task on time depends on our efforts. 答案+逐题解析 1. Whether 解析：主语从句位于句首，表“是否”，只能用whether，不可用if，从句完整不缺成分。 2. What 解析：主语从句缺主语，指代事物，表“……的事情”，用what。 3. What 解析：从句缺need的宾语，表“我们所需要的东西”，what引导主语从句。 4. Whether 解析：句首主语从句，表“是否下雨”，语义疑问，用whether。 5. that 解析：It作形式主语，真正主语从句完整无疑问，that只起连接作用、无实义。 6. Whoever 解析：主语从句缺主语，表“无论谁、任何人”，泛指所有人，用whoever。 7. when 解析：It作形式主语，从句完整，缺时间状语，表“何时举办运动会”。 8. What 解析：从句缺said的宾语，指代话语内容，用what引导主语从句。 9. that 解析：固定句型It is a pity that...（遗憾的是……），that引导主语从句。 10. Whether 解析：句首主语从句，表“是否能按时完成任务”，语义疑问，用whether。 考向02 主语从句的写作 一、万能公式：It + adj./过去分词/名词 + that 从句 特点：句子平稳、地道、满分质感，适合开头观点、中间论证、结尾总结。 1. 观点评价类（议论文万能开头） It is obvious that … 显而易见…… It is obvious that reading plays an essential role in our personal growth. 显而易见，阅读对我们的个人成长至关重要。 It is clear that … 很明显…… It is clear that teamwork contributes to our success. It is true that …的确…… It is true that challenges can shape our character. 2. 情感态度类（书信/演讲稿） It is a pity that … 遗憾的是…… It is a pity that you missed the meaningful activity. It is amazing that … 令人惊喜的是…… It is amazing that we have made such great progress. 3. 客观事实类（论证加分） It is reported that … 据报道…… It is widely believed that …人们普遍认为…… It is no wonder that … 难怪…… 4. 建议类（书信高频+虚拟语气） It is suggested that sb. (should) do sth. It is suggested that we (should) balance our study and relaxation. 建议我们平衡学习与放松。 第二类：句首主语从句（高阶亮眼｜冲刺满分） 1. That 引导（陈述事实、升华观点） 公式：That + 完整句子 + 谓语 That we keep working hard matters greatly. 我们坚持努力这件事，至关重要。 That kindness can warm the world is always true. 善意温暖世间，这一点永远属实。 2. What 引导（最提分！表“……的东西/事情”） 公式：What + 从句（缺主/宾）+ 谓语 What matters most is persistence. 最重要的东西是坚持。（秒杀低级：I think persistence is important） What we learn from experience will benefit us lifelong. 我们从经历中学到的东西将使我们终身受益。 3. Whether 引导（不确定性观点） Whether we succeed depends on our efforts. 我们是否成功，取决于自身努力。 4. 特殊连接词（拔高句型） How we face difficulties shapes our future. 我们面对困难的方式，塑造我们的未来。 Whoever holds on to dreams will finally succeed. 任何坚守梦想的人终将成功。 重难·创新演练 It作形式主语 一、填入1个合适的词 1. It is no wonder ____ he has made great progress recently. 2. ____ we should solve the problem is worth discussing. 3. ____ makes me happy is to help others in need. 4. It is uncertain ____ he will accept our invitation. 5. ____ has knowledge can contribute to society. 6. ____ he refused the offer surprised all of us. 7. It is clear ____ teamwork plays a key role in success. 8. ____ we will go for a picnic this weekend is not fixed. 9. ____ you learn from mistakes matters a lot. 10. It is doubtful ____ the plan will work well. 答案+逐题解析 1. that 解析：固定句型It is no wonder that...（难怪……），that引导主语从句。 2. How 解析：主语从句结构完整，缺方式状语，表“如何解决问题”。 3. What 解析：从句缺主语，指代事物，表“让我开心的事”，用what。 4. whether 解析：It作形式主语，句意不确定，表“是否接受邀请”，用whether。 5. Whoever 解析：从句缺主语，泛指“任何有知识的人”，用whoever。 6. That 解析：句首主语从句，句意完整、无疑问，that无实义，不可省略。 7. that 解析：It作形式主语，从句语义完整，that引导真正主语从句。 8. Whether 解析：句首主语从句，表“是否去野餐”，疑问语义用whether。 9. What 解析：从句缺learn的宾语，表“从错误中学到的东西”，用what。 10. whether 解析：It is doubtful whether...（怀疑是否……），固定主语从句句型。 二、单句语法填空 1. ____ he will choose to study abroad depends on his family’s decision. 2. It is suggested ____ we (should) take more exercise every day. 3. ____ we achieve our dreams requires constant efforts. 4. ____ is worth doing is worth doing well. 5. It remains to be seen ____ the new policy will bring benefits. 6. ____ helped me with my study is a kind stranger. 7. ____ he said nothing at the meeting made us confused. 8. It is amazing ____ he has mastered three foreign languages. 9. ____ way we take, we must stick to our original intention.（改错式主语从句考点） 10. ____ the accident happened is still under investigation. 答案+逐题解析 1. Whether 解析：句首主语从句，表“是否出国留学”，疑问语义，用whether。 2. that 解析：It is suggested that... 虚拟语气句型，that引导主语从句，从句用(should) do。 3. That解析：主语从句句意完整，表“我们实现梦想这件事”，that仅作连接词。 4. What 解析：从句缺主语，指代事物，固定谚语主语从句结构，用what。 5. whether 解析：It作形式主语，表“新政策是否有益”，不确定语义用whether。 6. Who 解析：主语从句缺人作主语，特指具体某人，用who。 7. That 解析：句首主语从句，句意完整，指代“他会议上沉默这件事”，that不可省。 8. that 解析：It作形式主语，真正主语从句完整，that引导从句。 9. Whichever 解析：修饰名词way，表“无论哪一种方式”，限定范围用whichever引导主语从句。 10. How 解析：从句完整，缺方式状语，表“事故如何发生”，用how。 三、语法填空 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Passage 1 1. ____ makes a person successful is not talent alone. It is widely believed 2. ____ persistence and hard work play a decisive role. 3. ____ we can keep working hard determines our future achievements. It remains unknown 4. ____ we will meet more difficulties on the way to success, but 5. ____ we should never give up is always true. 答案&解析 1. What 主语从句，从句缺主语，表“使人成功的事物”。 2. that It作形式主语，真正主语从句完整，that无实义。 3. Whether 句首主语从句，表“是否坚持努力”，疑问语义。 4. whether It作形式主语，表“是否会遇到更多困难”。 5. that 主语从句句意完整，指代“永不放弃这件事”。 Passage 2 1. ____ our school will hold an English festival excites all students. It is clear 2. ____ this activity can enrich our after-school life. 3. ____ will take part in the speech competition has not been announced. It is doubtful4. ____ we can finish the preparation in time. But5. ____ we gain experience from the activity is the most valuable. 答案&解析 1. That 句首主语从句，句意完整，指代学校举办英语节这件事。 2. that It作形式主语，固定句型It is clear that...。 3. Who 主语从句缺人作主语，表“谁会参加比赛”。 4. whether It作形式主语，表“是否能及时完成准备工作”。 5. What 主语从句缺gain的宾语，表“我们收获的东西”。 Passage 3 1. ____ environmental protection matters greatly is common sense. It is reported 2. ____ more young people are joining green activities. 3. ____ we can protect our planet well depends on everyone’s efforts. It is unknown 4. ____ new environmental policies will be carried out. But 5. ____ we should protect nature is never wrong. 答案&解析 1. That 句首主语从句，句意完整，指代环保至关重要这件事。 2. that It作形式主语，固定句型It is reported that...（据报道……）。 3. Whether 句首主语从句，表“是否能保护好地球”。 4. when It作形式主语，从句缺时间状语，表“新政策何时实施”。 5. that 主语从句结构完整，语义肯定，用that引导。 主语从句高考终极易错总结 1. 句首主语从句表“是否”，只能用whether，绝对不用if； 2. 从句缺主/宾用what/who/whoever，从句完整用that/whether/连接副词； 3. It作形式主语高频句型：It is clear/obvious/pity/suggested that...； 4. That引导句首主语从句，绝对不可省略。 四、主语从句的写作 1、升级对比（低分句→主语从句满分句） 普通句：I think practice is very important. 满分主语从句：What matters most is constant practice. 普通句：Hard work helps us succeed. 满分主语从句：That we stick to hard work leads to our final success. 普通句：It is certain that teamwork is important. 满分主语从句：It is obvious that teamwork plays a vital role in our life. 2.四大高考场景「直接背诵万能句」 1. 议论文开头（观点引入） 人们普遍认为积极的心态能带给我们无尽的力量。 It is widely believed that positive attitudes bring us endless power. 2. 中间论证（讲道理） 我们从困境中收获的不仅是经验，更是更强大的意志力。 What we gain from difficulties is not experience alone, but stronger willpower. 3. 书信建议（高端得体） 建议我们充分利用课余时间。 It is suggested that we (should) make full use of our spare time. 4. 结尾升华（万能收尾） 所有努力皆有回报，这是亘古不变的真理。 That every effort will pay off is an unchangeable truth. 五、主语从句写作避坑清单（考场零失误） 1. 句首主语从句表“是否”，只用 whether，禁用 if 2. 句首 That 不可省略（宾语从句可省，主语从句不行） 3. What 必须在从句中充当主语/宾语，从句缺成分才用 4. It is suggested that 从句一定要用 (should) do 虚拟语气 5. 所有主语从句一律用陈述语序，无疑问语序 真题·实战演练 高频考点：主语从句的连词、主语从句的写作 考向01主语从句的连词 1.（2026·北京丰台·一模）____15____ this qualification offers are the tools and thinking styles ____16designed___ (design) to help you make sense of complex information. 【答案】What 【解析】考查主语从句。句意：这一资格所提供的是旨在帮助你理解复杂信息的工具和思维方式。空处引导名词性从句作整个句子的主语，主语从句中offers缺少宾语，结合“the tools and thinking styles”可知，宾语指物，应用连接代词what作引导词，句首单词的首字母需大写。故填What。 考向02 主语从句的写作 1．（2022·全国乙卷）不难看出，选择听英文歌曲和看英文电影的学生占比分别为 65% 和 50%。(运用it作形式主语，that引导主语从句以及who引导的定语从句) It can easily be seen that the percentage of students who choose listening to English songs and watching English movies is respectively 65% and 50%. 【答案】It can easily be seen that the percentage of students who choose listening to English songs and watching English movies is respectively 65% and 50%. 【解析】完整语法解析 1. 整体结构：It 作形式主语，that 引导真正主语从句 句型：It can easily be seen that… It：形式主语，无实际含义，只是平衡句子，避免头重脚轻； 真正主语：后面一整段 that 从句； 固定句式翻译：不难看出 / 显而易见。 2. that 引导主语从句 that 从句完整内容： the percentage of students who choose listening to English songs and watching English movies is respectively 65% and 50% that 只起连接作用，不充当从句成分，不可省略。 3. who 引导定语从句 先行词：students 从句：who choose listening to English songs and watching English movies who 指代人（students），在从句中作主语； 修饰限定 “哪一类学生”：选择听英文歌、看英文电影的学生。 4. 主干（主语从句内部主谓） the percentage … is respectively 65% and 50% 主语：the percentage（百分比） 系动词：is 表语：65% and 50% respectively adv. 分别地（对应前文两项活动：听歌 65%，看电影 50%） 5. 重点短语 It can easily be seen that… 显而易见（图表作文万能开头句型） the percentage of …… 的百分比 choose doing sth. 选择做某事 respectively 分别 句子层级梳理 形式主语 It + 谓语 can easily be seen that 引导主语从句（整句真正主语） 2.1 主语从句主干：the percentage … is 65% and 50% 2.2 定语从句 who choose … 修饰 students 20 / 20网（北京）股份有限公司 学科网（北京）股份有限公司zxxk.com 学科网（北京）股份有限公司zxxk.com 学科网（北京）股份有限公司 $