2026年中考英语专题复习讲义——名词性从句

中考英语专题复习讲义———名词性从句 一、名词性从句基本概念 ●核心定义：在句中起名词作用的从句，包含主语从句、宾语从句、表语从句、同位语从句。 ●连接词分类： 陈述句：that（无实义） 一般疑问句：whether/if（是否） 特殊疑问句：what/when/where等（保留原意） ●语序原则：从句永远用陈述语序。 ●速记口诀：名从四类功能同，连接三系语序通 二、主语从句连接词选择 ●典型例题： _____ he passed the exam surprised us all. A. What B. That C. If D. When 答案：B（陈述事实用that） _____ will win is still unknown. A. Who B. Whom C. What D. That 答案：A（疑问代词作主语） ●举一反三： _____ she left early is a mystery. (Why) _____ the meeting starts matters little. (When) _____ he said confused everyone. (What) 三、宾语从句时态呼应 ●规则要点： 主句过去时，从句需用对应过去时态。 例外：客观真理/科学事实保持一般现在时。 ●典型例题： He believed that he _____ the task. A. finishes B. finished C. will finish D. has finished 答案：B（主句believed为过去时） We learned that water _____ at 100°C. A. boils B. boiled C. will boil D. is boiling 答案：A（客观真理） ●举一反三： She thought she _____ the key. (had lost) They knew the earth _____ around the sun. (revolves) He promised he _____ me soon. (would call) 四、whether与if的区别 ●使用场景： 介词后只用whether 与or not连用只用whether 主语从句首句只用whether ●典型例题： I wonder _____ we should go. A. whether B. if C. that D. what 答案：A（可与or not连用） _____ he agrees doesn’t matter. A. If B. Whether C. That D. What 答案：B（主语从句句首） ●举一反三： It depends on _____ it rains. (whether) Ask her _____ she needs help. (if) _____ to accept is your choice. (Whether) 五、that省略规则 ●可省略场景： 宾语从句中作动词宾语 宾语从句中作形容词宾语 ●不可省略场景： 主语从句 表语从句 同位语从句 ●典型例题： I think _____ you are right. A. / B. that C. whether D. if 答案：A（动词宾语可省） The fact _____ he succeeded inspired us. A. / B. that C. what D. which 答案：B（同位语从句不可省） ●举一反三： She said _____ she would come. (/) The idea _____ we cooperate is good. (that) It’s clear _____ he lied. (that) 六、表语从句位置 ●固定结构：系动词（be/seem等） + 连接词 + 从句 ●特殊注意：because不可引导表语从句 ●典型例题： The question is _____ we can finish. A. what B. that C. whether D. because 答案：C（系动词后接whether） His suggestion was _____ we hold a meeting. A. because B. what C. that D. if 答案：C（建议内容用that） ●举一反三： The trouble is _____ we lack time. (that) My doubt is _____ it is true. (whether) The reason is _____ he overslept. (that) 七、what的特殊用法 ●功能特点： 保留疑问含义（什么） 表示“所…的事物”（= the thing which） ●典型例题： _____ he needs is more practice. A. That B. If C. What D. Whether 答案：C（= the thing which） Do you know _____ happened yesterday A. that B. what C. which D. whether 答案：B（疑问含义） ●举一反三： _____ you said shocked me. (What) I remember _____ she wore. (what) _____ impressed us was his courage. (What) 八、同位语从句定位 ●识别标志： 紧跟抽象名词（fact/idea/news等 ... ...