6.主语从句引导词用法形式主语结构-2025-2026学年高中英语期末语法复习选择性必修1（重大版）

期末语法复习 选择性必修1·重庆大学出版社·主语从句（引导词用法、形式 主语结构) 一、主语从句核心考点概述 主语从句是高中英语重要语法，由引导词引导在句中充当主语，常使用t作形式主语 结构以平衡句子，核心考点围绕连接代词、连接副词及hat的用法展开。 二、核心考点详解 考点一：引导词that的用法 结构：hat引导主语从句时无意义，不作成分，仅起连接作用，通常置于句首；若用形 式主语it,则hat从句后置 That he will come to the party is certain./It is certain that he will come to the party 真题1：_the earth goes around the sun is a well-known fact.【2022·重庆九校高二期末】 A)What B)That C)Which D)Whether 答案：B 真题2：Itis important._we should learn English well.【2021·重庆大学出版社教材配套 练习】 A)that B)what C)if D)how 答案：A 考点二：引导词whether/if的用法 结构：whether/if引导主语从句时意为“是否”，不作成分；whether可置于句首或用形 式主语t结构，f不可置于句首 Whether he will attend the meeting is not decided yet./It is not decided yet whether/if he will attend the meeting. 真题1：we will go for a picnic tomorrow depends on the weather.【2023·重庆一中高 二月考】 A)If B)Whether C)That D)What 答案：B 真题2：It1 emains unknown the plan will be carried out next month.【2022·重庆八中期 末】 A)if B)that C)whether D)which 答案：C 考点三：连接代词what/which/who/whose的用法 结构：连接代词在主语从句中作主语、宾语、表语或定语，分别表示“什么”“哪一 个”“谁”“谁的” 例句：What he said at the meeting surprised everyone.(what作宾语)/Which team will win the game is still unclear..(which作定语) 真题1：_won the first prize in the competition will be announced tomorrow.【2023·重庆 育才中学模拟】 A)Who B)Whom C)Which D)Whose 答案：A 真题2：he needs most now is a good rest. 【2022·重庆外国语学校高二质检】 A)That B)What C)Which D)Whether 答案：B 考点四：连接副词when/where/why/how的用法 结构：连接副词在主语从句中作状语，分别表示“何时”“何地”“为何”“如何” When the plane will take off hasn't been announced./How we can solve the problem is under discussion. 真题1： the meeting will be held hasn't been decided yet.【2021·重庆大学出版社同步 练习】 A)What B)Where C)That D)If 答案：B 真题2：he succeeded in the exam is still a mystery to us.【2023·重庆南开中学期末】 A)Why B)That C)Which D)Whom 答案：A 考点五：形式主语t结构 结构：当主语从句较长时，常用t作形式主语，将真正的主语从句后置，结构为“It+ be+形容词/名词/过去分词+that/whether/连接代词/连接副词引导的主语从句” It is necessary that we should study hard./It is a pity that you missed the concert./It is reported that the accident happened yesterday. 真题1：It is important_we protect the environment..【2022·重庆铜梁中学高二期末】 A)that B)what C)if D)how 答案：A 真题2：It is said he has already finished his homework.【2023·重庆万州中学月考】 A)if B)that C)whether D)what 答案：B 三、考点综合训练 (一)单项选择 1.the Smiths will move to London is still unknown. A)If B)Whether C)That D)What 2.It is reported three people were injured in the accident. A)that B)what C)which D)if 3.won the Nobel Prize in Literature last year has become a hot topic. A)Whom B)Who C)Which D)Whose 4.we can solve the environmental problem worries many scientists. A)How B)What C)That D)Where 5.It is necessary students should learn to manage their time properly. A)if B)whether C)that D)what 6.team will represent our school in the competition hasn't been decided. A)Which B)What C)That D)Whether 7.the meeting will be held next Monday is certain. A)When B)Where C)That D)Why 8.It remains a questionthe new policy will be carried out A)that B)which C)if D)whether (二)完成句子 1.他是否会接受这份工作还不确定。 the job is not certain. 2.我们什么时候出发取决于天气情况。 depends on the weather. 3.据说这位作家正在写一本新书。 the writer is working on a new book. 4.谁能参加这次会议还没有宣布。 the meeting hasn't been announced. 5.我们如何提高英语水平是一个重要问题。 English is an important question. 6.她为什么拒绝这个邀请仍然是个谜。 the invitation is still a mystery. (三)短文改错 下面短文中共有5处与主语从句相关的错误，请找出并改正 1.If she will come to the party tomorrow is not decided yet. 2.It is important what we should master basic grammar rules 3.That he said at the meeting made everyone excited. 4.Which team will win the game are still unknown. 5.It is reported which the price of houses will fall next month. (四)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 -1-we will have a picnic this weekend depends on the weather.Our monitor said,"2 is necessary that we prepare some food and drinks in advance."Some classmates suggested -3we should bring kites and frisbees._4will be in charge of transportation hasn't been discussed yet.I think5we can go by bike is a good idea,but others prefer taking a bus. _6 the picnic will end is also unclear.Maybe we can decide it when we meet tomorrow. (五)参考答案与解析 1.单项选择答案：1.B2.A3.B4.A5.C6.A7.C8.D 2.完成句子答案： 1.Whether he will accept 2.When we will start 3.It is said that 4.Who can attend 5.How we can improve 6.Why she refused 3.短文改错答案： l.If→Whether2.what→that3.That→What 4.a1re→is5.which→that 4.语法填空答案： 1.Whether 2.It 3.that 4.Who 5.that 6.When 英语语法复习手册·选择性必修1·重庆大学出版社·主语从句