Unit 3 语法专项课件 宾语从句（that if whether）2026-2027学年人教版九年级英语上册

该初中英语课件系统梳理了九年级上册Unit3宾语从句的核心知识，涵盖定义、引导词（that/if/whether）用法、陈述语序、时态匹配及否定转移等内容，通过引导词总览表、规则分点解析和核心知识点总结，帮助学生构建逻辑清晰的知识网络。 其亮点在于采用“全解精讲+分层练习”模式，通过易混对比判断、句型转换（含否定转移改写）、间接引语转换等针对性练习，培养学生的语言能力和思维品质，分层设计满足不同水平学生需求，助力教师精准把握学情，提升复习效率。

教学课件 新人教版九年级上册 Unit3 语法专项 —— 宾语从句（that/if/whether） 全解精讲+分层练习 1 1.掌握宾语从句基础定义 2.分清 that、if、whether 三种引导词用法 3.牢记从句陈述语序与时态变化规则 4.掌握否定转移、or not 等高频易错点 学习目标 什么是宾语从句 1.宾语：跟在动词 / 介词后，动作的对象，名词、代词作宾语 例：I like English.（English 名词作宾语） 2. 宾语从句：用完整句子充当宾语 例：I know that English is useful. 3.结构拆分：主句 + 引导词 + 宾语从句 4.主句：主谓主干；从句：完整小句子 三大引导词总览表 引导词 含义 使用场景 that 无实义 陈述事实、观点 if 是否 表疑问，无 or not whether 是否 可搭配 or not、介词后 that 仅起连接作用，口语常省略 if/whether 表不确定，二者多数情况互换 特殊场景只能用 whether，不能用 if （一）that 引导宾语从句 用法 1.适用场景：陈述肯定事实、想法、感受 2.常用主句动词：think, believe, know, hope, say 3.规则：that 无词义，非正式语境可省略 例句 1：I think (that) reading improves grammar. 例句 2：She hopes (that) she can pass the test. 拓展：肯定陈述句变从句首选 that that 引导从句 补充拓展 1.多个 that 从句并列时，第二个 that 不可省 例：I know (that) you study hard and that you never give up. 2.主句动词为 find/feel 时，that 常省略 3.不能用 that 的情况：主句表疑问、不确定 4.错误示范：I wonder that he will come. 5.修正：I wonder if he will come. （二）if /whether 用法 1.翻译统一为：是否，用于表达疑问、不确定 2.通用场景：无 or not、无介词、无 to do 不定式 3.两句可互换： I want to know if he likes history.=I want to know whether he likes history. 4.常用搭配：I wonder… / Can you tell me… 5.核心：if/whether 引导词绝对不能省略 只能用 whether，不能用 if 的三种情况 1.情况 1：句尾出现固定搭配 or not 例：I don’t know whether he agrees or not. 2.情况 2：介词后面作宾语 例：We are talking about whether we travel. 3.情况 3：后接不定式 to do 例：She can’t decide whether to join the club. 总结：遇 or not、介词、to do，只用 whether 易混对比练习题（判断 if/whether） 1.① I’m not sure _____________it will rain tomorrow. 2.② He asks ________we play basketball or not.（whether） 3.③ They argue about ________homework is too much.（whether） 4.④ Lily doesn’t know ________to buy this dictionary.（whether） 记住：出现以上三种特殊标志，排除 if if/whether whether whether whether 宾语从句规则 1：陈述语序 1.硬性要求：无论主句疑问 / 陈述，从句必须主语在前 2.标准句式：引导词 + 主语 + 谓语 + 剩余成分 3.错误：Do you know where is the library? 4.正确：Do you know where the library is? 5.口诀：疑问变从句，主谓要调换 语序改错小练习 1.原句：I wonder what does she like. 改正：I wonder what she likes. 2.原句：Could you tell me when will the class start? 改正：Could you tell me when the class will start? 3.关键点：去掉助动词 do/does/will，主语提前 4.特殊疑问词引导从句同样遵守此规则 宾语从句规则 2：时态匹配 1.分类 1：主句为现在时态（一般现在、现在完成） 2.从句时态不受限制，随真实时间变化 3.例句：I know he works hard.（现在） 4.I know he worked hard last year.（过去） 5.I know he will work hard next term.（将来） 时态匹配规则 2：主句为过去时态 1.主句动词过去式，从句统一改为对应过去时态 2.一般现在 → 一般过去；will → would 3.am/is → was；are → were 4.例句：He said (that) he liked English. 5.原直接句：He says, “I like English.” 时态特殊例外：客观真理永用一般现在时 1.不受主句过去时态影响，永远用一般现在时 2.适用：自然规律、科学常识、永恒谚语 3.例句 1：The teacher told us the earth goes around the sun. 4.例句 2：Our grandpa said practice makes perfect. 5.标志词：真理、星球、谚语、常识 时态综合判断练习 1.She tells us light ___________faster than sound. 2.He told me he ________to Beijing last summer. 3.I think I ____________a good score next month. 4.解题步骤：先看主句，再看是否为客观真理 travels went will get 重点难点：否定转移 1.满足两个条件才会否定转移 ① 主句主语 I / We（第一人称） ② 主句动词 think, believe, suppose 2.错误：I think he isn’t right. 3.正确：I don’t think he is right. 4.否定词 not 移至主句，从句保持肯定 否定转移拓展与反义疑问句 1.仅第一人称才转移，第三人称不用转移 例：She thinks it isn’t easy.（无需改动） 2.反义疑问句特殊用法： I don’t think he is honest, is he? 3.反问看从句，否定含义随主句转移 4.口诀：一人称 think，否定往前挪 高频易错点汇总（一） 易错 1：that 与 if 混用 wonder 后表疑问，不能用 that，改用 if/whether 易错 2：or not 搭配 if 末尾有 or not，只能用 whether 易错 3：从句保留疑问语序 从句必须主语在前，不能倒装 高频易错点汇总（二） 易错 4：主句过去时，真理仍变过去式 客观真理一律一般现在，不受主句影响 易错 5：that 随意省略 并列第二个 that 不能省略 易错 6：if 用于介词后 介词后只能用 whether 选词填空（that/if/whether）做题步骤：判断陈述 / 疑问；观察有无 or not、介词 We believe ________everyone can learn well. I don’t know ________she will come or not. He asks ______________we have finished homework. They talk about ________they take a trip. I hope ________my English will improve. that whether if/whether whether that 题型二：单项选择 1.I don’t know ________he will join us. A. that B. whether C. what 2.She told us ________the sun rises in the east. A. that B. if C. whether 3.We can’t decide ________to take the bus. A. if B. whether C. that 4.I ________think ________math is too hard. A. don’t; that B. /; that C. don’t; if B A B A 题型一：句型合并（两句变宾语从句） 规则：陈述句用 that；一般疑问句用 if/whether 例题 1：He is good at chemistry. I find. I find (that) he is good at chemistry. 例题 2：Will she visit the museum? I wonder. 合并：I wonder if/whether she will visit the museum. 句型转换专项练习 1 1.Does he like watching movies? I want to know. 2.Reading helps memory. My mom says. 3.Can we finish the task today? Nobody knows. 4.Time waits for no man. The teacher told us. I want to know if/whether he likes watching movies. My mom says (that) reading helps memory. Nobody knows if/whether we can finish the task today. The teacher told us (that) time waits for no man. 句型转换专项练习 2（否定转移改写） 1.原句：I think it is not difficult to learn grammar. 2.原句：I believe she can’t pass the exam. I don’t think it is difficult to learn grammar. I don’t believe she can pass the exam. 宾语从句变间接引语 1.直接引语陈述句 → that 引导宾语从句 2.直接引语一般疑问句 → if/whether 引导 3.主句过去时，从句时态同步倒退 4.例句：He asked, “Do you study English?” 转换：He asked if I studied English. 间接引语转换练习题 1.She said, “I finish my homework every day.” 2.Tom asked me, “Will you go shopping with me?” 3.Our teacher said, “Light travels faster than sound.” 要求：全部改为含宾语从句的间接引语 She said (that) she finished her homework every day. Tom asked me if/whether I would go shopping with him. Our teacher said (that) light travels faster than sound. 课堂核心知识点总结 1 1.引导词区分： that→陈述事实；if/whether→是否 2.whether 专属场景：or not、介词、to do 前 3.语序不变真理：从句永远主语 + 谓语 4.时态两大规则：主现从任意，主过从过变 课堂核心知识点总结 2 1.客观真理从句永远一般现在时 2.I/We + think/believe 必须否定转移 3.that 并列从句第二个 that 不能省略 4.if/whether 引导词全程不可省略 5.做题三步法：看引导词→调语序→定时态 教学课件 Unit3 语法专项 —— 宾语从句（that/if/whether） Thank you for listening! 29 $