Unit2语法专项课件 if whether&疑问词引导宾语从句 2026-2027学年译林版九年级英语上册

该初中英语课件聚焦if/whether及疑问词引导的宾语从句，通过先复习that引导从句，再过渡到一般疑问（if/whether）和特殊疑问（what/who等）引导词，搭建从已知到未知的学习支架，系统涵盖陈述语序、时态规则等核心要求。 其亮点在于通过分层练习、易错点精讲（如介词后用whether）和解题口诀，结合句型转换、单项选择等题型，培养学生语言能力和思维品质。学生能掌握语法应用技巧，教师可获得系统教学资源，提升教学效率。

教学课件 译林英语九年级上册 Unit2 语法专项 —— if/whether&疑问词引导宾语从句 全解精讲+分层练习 1 1.掌握 if/whether 表 “是否” 引导一般疑问类宾语从句 2.分清只能用 whether 的三种固定特殊场景 3.熟练使用 what/who/where 等疑问词引导特殊疑问从句 4.牢记宾语从句统一规则：陈述语序、时态变化 5.区分 that/if/ 疑问词三类宾语引导词差异 学习目标 if/whether 概念 功能：把一般疑问句改成宾语从句，翻译 “是否” 常用主句动词：wonder、ask、find out、be not sure 硬性规则：从句必须改为陈述语序（主 + 谓） 例句：I wonder if I can get on with my parents. 绝大多数普通句子 if、whether 可以互换 只能用 whether 场景 1 介词后 介词 on/about/for 后面，只能写 whether，禁用 if 例句：I’m thinking about whether I should give up hobbies. 易错错句：I’m thinking about if… 做题技巧：空格前是介词，直接选 whether 只能用 whether 场景 2 搭配 or not 固定搭配 whether…or not，不能替换 if 例句：We don’t know whether the plan will work or not. or not 紧跟从句末尾，是标志性判断词 看见句尾 or not，引导词只用 whether 只能用 whether 场景 3 不定式 to do 前 decide/choose 后接 to do 不定式，前面只用 whether 例句：She hasn’t decided whether to talk with her mum. 结构：whether + to do，无 if to do 写法 if/whether 时态统一规则 主句现在时态：从句根据事实任意时态（现 / 将 / 过） 主句过去时态：从句整体改为对应过去时态 例句：He wondered if his parents would understand him. 客观真理不受时态限制，永用一般现在时 和 that 宾语从句时态规则完全一致 疑问词宾语从句总表 疑问词 词义 从句成分 例句 who 谁 主语 / 宾语 I don’t know who I can ask for help what 什么 宾语 I don’t know what to do with stress why 为什么 原因状语 I don’t know why parents set rules how 怎样 方式状语 I’m not sure how to communicate where 哪里 地点状语 I know where to get advice when 何时 时间状语 She wonders when to chat with dad 疑问词在从句中不能省略，承担句子成分 疑问词从句核心规则 — 语序 特殊疑问句倒装语序全部改为陈述语序 错误：I don’t know why am I upset. 正确：I don’t know why I am upset. 结构统一：疑问词 + 从句主语 + 从句谓语 所有宾语从句通用硬性要求 疑问词从句时态规则 与时态规则和 if/whether、that 完全相同 主句现在，从句时态自由；主句过去，从句倒退 例句：He asked where I spent my spare time. 主句 asked 为过去，spent 同步变过去式 三类宾语引导词区分 that：引导陈述句，无词义，可省略 if/whether：引导一般疑问句，词义 “是否” 特殊疑问词：引导特殊疑问句，有实际含义 判断技巧：原句是一般疑问用 if，特殊疑问用 wh - 词 解题技巧 if/whether 填空判断 一般情况：if/whether 二选一均可 空格前有介词→只用 whether 句尾出现 or not→只用 whether 后面紧跟 to do 不定式→只用 whether 其余场景两者通用 解题技巧 疑问词填空判断 缺人主语 / 宾语用 who；缺事物宾语用 what 问地点 where、时间 when、原因 why、方式 how 先看从句缺少的句子成分再选词 所有疑问词不可省略，必须写在句首 高频易错点 1 语序颠倒 错误：I don’t know where can I find Mr Friend. 改正：I don’t know where I can find Mr Friend. 所有宾语从句一律主语在前，谓语在后 高频易错点 2 if 用于介词后 错误：It depends on if you have enough time. 改正：It depends on whether you have enough time. 介词后固定禁用 if，只能用 whether 高频易错点 3 if 搭配 to do 错误：I can’t choose if to join the club. 改正：I can’t choose whether to join the club. 不定式结构只搭配 whether 题型一 if/whether 填空 1.I wonder ____________ I can get good grades this month. 2.It depends on ____________ you are brave enough to talk. 3.We aren’t sure ____________ the teacher will agree or not. 4.She hasn’t decided ____________ to share her worries. if/whether whether whether whether 题型一 if/whether 填空 5.No one knows _____________ the argument will end soon. 6.Could you tell me _____________ I can join the art group? 7.I’m thinking about _____________ I should cut study time. 8.He asks _____________ his friend will forgive him. if/whether if/whether whether if/whether 题型二 疑问词填空 选词：what/who/where/when/why/how 1.I don’t understand ________ parents care about grades most. 2.She wonders ________ she can ask for help when upset. 3.Can you tell me ________ I can do to relax myself? 4.I want to know ________ to get advice from experts. why who what where 题型二 疑问词填空 5.He isn’t sure ________ to have a talk with his mum. 6.Nobody knows ________ teenagers solve stress alone. 7.I don’t know ________ time fits for family communication. 8.We all wonder ________ advice the worker will offer. how how when what 题型三 句型转换 （一般疑问改从句） 1.Will my mum listen to me? I wonder. 2.Do I have too much homework? I’m not sure. 3.Can she make new friends? He asks. 4.Does this relaxing way work? We find out. 5.Should I stop my hobby? She can’t decide. I wonder if/whether my mum will listen to me. I am not sure if/whether I have too much homework. He asks if/whether she can make new friends. We find out if/whether this relaxing way works. She can’t decide whether to stop her hobby. 题型三 句型转换 （特殊疑问改从句） 6.Why do I feel anxious every day? I can’t figure out. 7.Where can I get help with friendship? I want to know. 8.How can I mix study and hobbies? He wonders. 9.Who can help me with stress? I don’t know. 10.What should I do after quarrelling? She asks me. I can’t figure out why I feel anxious every day. I want to know where I can get help with friendship. He wonders how I can mix study and hobbies. I don’t know who can help me with stress. She asks me what I should do after quarrelling. 题型四 单项选择 1.I wonder ________ I can talk freely with my parents. A. that B. if C. what 2.She doesn’t know ________ she can do to reduce pressure. A. how B. what C. whether 3.It depends on ________ you dare to face your problems. A. if B. whether C. when 4.Could you tell me ________ I can find the youth worker? A. where B. who C. why B B B A 题型四 单项选择 5.He asked ________ I was tired of endless homework. A. that B. whether C. how 6.We aren’t clear ________ we ask adults or not. A. if B. whether C. where 7.I can’t understand ________ parents limit my free time. A. why B. how C. if 8.No one knows ________ will give us useful suggestions. A. which B. whom C. who B B A C 三大宾语从句对比 1.that：陈述句引导，无词义，可省略 2.if/whether：一般疑问，是否，三种场景只用 whether 3.wh - 疑问词：特殊疑问，有实义，不可省略 4.统一规则：陈述语序、时态同步倒退 5.做题第一步先判断原句句式类型 核心易混点汇总 1.介词、to do、or not 固定只用 whether 2.从句禁止疑问倒装，必须主谓正常顺序 3.主句过去，从句动词同步改为过去形式 4.what 在从句作宾语，how 只作方式状语 5.who 指代人，what 指代事物，不可混用 解题记忆口诀 一般疑问用 if/whether，三种情况只用 whether； 特殊疑问 wh 词开头，从句语序主谓守； 主句过去从句退，陈述语序不颠倒； that 无义可省略，疑问词汇不能丢。 易错强化回顾 1.介词后绝对不能使用 if 2.从句永远不能出现 can you/do you 倒装 3.看见 to do 不定式前置只用 whether 4.主句过去时，will 改成 would，do 改成 did 5.what 和 how 不可混淆，do 后缺宾语用 what 教学课件 Unit2 语法专项 —— if/whether&疑问词引导宾语从句 Thank you for listening! 29 $