必修2 表语从句-备战2025-2026学年高中英语上学期期末语法全解（外研版）

ENGLISH-高中系列资料（外研版） Chapter1表语从句 考频分析 表语从句是高中英语句法的重要模块，考频占句法总量的15%左右，主要分布在核心题型：单项选择(1-2 题)、语法填空(1-2题)、阅读理解（长难句分析涉及）、书面表达（提升句式复杂度与表达准确性）。在 结构分析类题目中，表语从句的连接词选用及语序正确性往往是解题关键。 老查内容 高中英语对表语从句的考察聚焦三大维度，覆盖基础用法与语境应用： ·l导词选用：连接词that、whether,连接代词what、who、which、whose,连接副词when、where、 hy、how的辨析与功能； ·语序规则：表语从句用陈述语序，避免疑问句语序的误用； ·特殊句型：The reason why..is that..和It is because...等固定结构中表语从句的应用。 精讲精练 知识点一：表语从句的定义及构成 ·定义（在复合句中作表语，说明主语的性质、特征、状态等） 一功能：位于系动词后，对主语进行解释或描述 -例句：口My hope is that I can pass the exam.(that引导表语从句，说明主语hope的内容)口The question is whether we should go now.(whether引导表语从句，说明主语question的内容) ·连接词及用法 -that(无意义，仅起连接作用，□语中可省略)→例句：The fact is that she never lied to us. -whether(表“是否”，不可省略，不与if互换)→例句：The problem is whether we can get enough money. -连接代词(what/which/who/whom/whose,在从句中作主语、宾语、定语等)→例句：hat he wants is a new bike.(what在从句中作宾语) -连接副词(when/where/why/how,在从句中作状语)→例句：That's why he was late for school.(why 在从句中作原因状语) ·注意事项 -当主语为reason时，表语从句常用that引导，不用because(固定句型：The reason..is that..)→ 例句：The reason for his absence is that he is ill..(正)/The reason for his absence is because he isil.(误) -表语从句要用陈述语序→例句：The question is where we will meet.(正)/The question is where will we meet.(误) 高中丨英语|外研版|必修2 ENGLISH-高中系列资料（外研版） 知识点二：表语从句的高频连接词辨析与特殊句型 ·连接词that与whether的核心区别 1.功能差异 -that引导表语从句时无实际意义，仅起连接作用，不充当句子成分；whether表“是否”，在从句中 也不充当成分，但表达疑问概念。 2.句式限制 -that可用于所有表语从句（除需表达“是否”含义外）；whether不可与if互换，且常用于存在疑问 的语境。 一例句对比： *口The truth is that he didn't tell a lie.(that无意义，仅连接) *The doubt is whether she will accept the invitation.(whether表“是否”，不可用if替换) ·连接代词what与which的用法对比 1.指代范围 -what指代“内容”，无特定范围，如：What he said is important.(他说的话很重要，“话”的内容 不特定) -which指代“选择”，有特定范围，需搭配of短语或上下文暗示，如：The question is which book is the best.(问题是哪本书最好，有“书”的范围) 2.成分功能 一二者均在从句中作主语、宾语或表语，如： *What matters most is health.(what作主语，“最重要的事”) *Which team won the game is still unknown.(which作定语修饰team,整体which team作主语) ·连接副词how与why的语义侧重 1.how表“方式/程度”，在从句中作方式状语，如：The problem is how we can solve it quickly..(如何 快速解决，表方式) 2.why表“原因”，在从句中作原因状语，如：That's why she refused the offer..(那就是她拒绝提议的 原因) ·特殊句型：The reason..is that..的拓展应用 1.句式变形 -当reason后接定语从句时，表语从句仍用that引导，如：The reason why he was late is that his bike broke down.(why引导定语从句修饰reason,表语从句用that) 2.易混错误 -误：The reason for his success is because he worked hard.(because不可I导表语从句) -E:The reason for his success is that he worked hard. ·虚拟语气在表语从句中的使用 -当主句主语为suggestion,proposal,idea等表“建议/观点”的名词时，表语从句用“should-+动词原 形”(should可省略)，如： -My suggestion is that we(should)start early tomorrow.(suggestion后的表语从句用虚拟语气) 知识点三：表语从句的易混点辨析与高考真题链接 ·连接词f与whether的使用禁忌 -高考核心考点：表语从句中只能用whether,,不可用if。 -错误类型及修正： *☐误：The question is if we can arrive on time. *正：The question is whether we can arrive on time.(表语从句用whether表“是否") *口误：His doubt is if the plan will work. *正：His doubt is whether the plan will work. ·连接代词whose与which的定语功能差异 1.whose表“谁的”，后接名词作定语，无范围限制，如：The problem is whose dictionary this is.(这 是谁的字典) 2.which表“哪一个”，后接名词时需有选择范围，如：The choice is which book we should buy first. (选择是我们应该先买哪本书) ·高考真题改编练习（单选） 1.The reason why he failed the exam is-he was too careless. A.because B.that C.what D.why 2.(答案：B) 3.My suggestion is_we(should)hold a meeting to discuss the problem. A.if B.whether C.that D.what 4.(答案：C) 5.The problem is__we can get enough support from the government. A.that B.if C.whether D.how 6.(答案：C) 7.It remains unknown_the meeting will be held next week. A.that B.whether C.what D.where 8.(答案：B) 9.The fact is_he has never been to Beijing before. A.that B.what C.why D.how 10.(答案：A) 高中|英语|外研版|必修2 ENGLISH-高中系列资料（外研版） 考法一：连接词that与whether的辨析 ·核心：根据表语从句是否表达“是否”含义，选择使用that(无意义，仅连接)或whether(表“是否”， 不可用f替换)》 ·真题1（语法填空）： The truth is_he kept his promise to help us. -答案：that解析：从句“he kept his promise to help us'”为陈述事实，无“是否”含义，用that引导 表语从句，that无实际意义仅起连接作用。 ·真题2（单项选择）： The main problem iswe can finish the project before the deadline. A.that B.whether C.if D.what 一答案：B解析：从句表达“是否能在截止日期前完成项目”的疑问含义，表语从句中表“是否”需用 whether,,不可用if替换，故选B。 考法二：连接词whether与that的混合辨析 ·核心：根据表语从句是否表达疑问概念，区分使用whether(表“是否”)和that(无意义，仅连接) ·真题1（语法填空）： The biggest problem is_we can finish the project before the deadline -答案：whether解析：从句表达“是否能在截止日期前完成项目”的疑问概念，需用whether引导表 语从句，不可用f替换。 ·真题2（完形填空）： The truth is_he never broke his promise to us. A.whether B.that C.what D.why -答案：B解析：从句无疑问含义，仅起解释说明作用，用that引导表语从句，that无实际意义且不充 当成分。 考法三：表语从句连接词综合辨析与特殊句型应用 ·核心：结合连接词功能差异(that/whether)、指代范围(what/which)及特殊句型(The reason.is that.), 判断表语从句连接词的正确使用。 ·真题1（单项选择）： The reason why she cried was_she couldn't find her lost dog A.because B.that C.what D.whether -答案：B解析：主语为”The reason'”时，表语从句需用"that”引导，构成固定句型”The reason..is that.”, 此处"that”无实际意义仅起连接作用，不可用"because”。 ·真题2（语法填空）： The question is_(what/which)team will win the final match.We've watched all their previous games. -答案：whih解析：从句需表达在特定范围内的选择(”哪支队伍”)，且上下文暗示存在”所有参赛队 伍”这一范围，故用连接代词which”;”what”无特定范围，不符合语境。 高中丨英语|外研版|必修2 ENGLISH-高中系列资料（外研版） 解题小妙招 表语从句连接词妙招 表从连接看含义，陈述事实用that; 疑问“是否”选whether,,if不可替换它； The reason作主语，固定搭配hat接； 范围选择用which,无范围用what恰； that无义不充当，连接作用记心下。 真题演练 演练一：单项选择试题（共10题） 1.The main reason for his success is _he worked extremely hard. A.because B.that C.what D.why 2.My question iswe should start the project next Monday. A.if B.whether C.that D.what 3.The truth is_he never told a lie to his parents. A.whether B.what C.that D.why 4.The problem is_team will win the championship this year. A.what B.which C.that D.how 5.Her suggestion is_we (should)hold a meeting to discuss the issue. A.that B,if C.whether D.what 6.The doubt is_she will accept the job offer from the company. A.that B.why C.whether D.how 7.The fact is _he has already finished all the homework. A.what B.that C.whether D.when 8.The reason why she was late is_her bike broke down on the way. A.because B.what C.that D.how 9.The key is_we can solve the problem efficiently within two days. A.that B.whether C,if D.which 10.The question is-he managed to complete the task in such a short time. A.how B.what C.that D.which 演练二：填空试题（共10题） 1.The truth is _he didn't steal the money. 2.My biggest concern is_we can get enough support from the community. 3.The reason for his absence is-he is seriously ill. 4.The problem is __book we should choose for the class reading. 5.Her idea is_we (should)organize a charity event next month. 6.The doubt isthey will arrive on time for the meeting. 7.The fact is-she has lived in London for five years. 8.The question is_we will hold the party this weekend. 9.His explanation ishe forgot to bring the document. 10.The key is_we can improve our English speaking skills quickly. 演练三：语法填空试题（共10空） Many students wonder about the secret to learning English well.The most important thing is 1. (that/whether)they need to build a solid foundation.Some believe the key is 2.-(what/which)methods are most effective,but in reality,consistency matters more than specific techniques. The reason why some students make rapid progress is 3.-they practice every day.For example,reading English articles for 30 minutes daily helps improve vocabulary and comprehension.However,a common doubt is 4.-such practices are enough to master the language. Teachers often say the goal is 5._(that/whether)students can use English confidently in real-life situa- tions.This requires not only knowledge of grammar but also courage to speak.The problem many face is 6.-they are afraid of making mistakes. Another question is 7.-(how/why)to balance listening,speaking,reading,and writing.Experts suggest integrating all skills,such as watching English movies while taking notes.The truth is 8._there is no "one-size-fits-all"solution,but adaptability is crucial. Finally,the most valuable lesson is 9.-learning a language is a long journey.The answer to "when will I become fluent?"is 10.-(that/how)it depends on individual effort and persistence. 答案 演练一：单项选择 1.B2.B3.C4.B5.A6.C7.B8.C9.B10.A 演练二：填空试题 1.that 2.whether 3.that 4.which 5.that 6.whether 7.that 8.whether 9.that 10.how 演练三：语法填空 1.that 2.what 3.that 4.whether 5.that 6.that 7.how 8.that 9.that 10.that 高中|英语|外研版|必修2