Unit3语法讲解及习题： that_if_whether引导的宾语从句2026-2027学年人教版英语九年级上册

人教英语九上Unit3语法讲解及习题： that/if/whether引导的宾语从句 一、本单元核心语法 本单元核心语法：宾语从句（Object Clauses），重点掌握由 that、if、whether 引导的宾语从句，也是九年级中考语法的核心重难点。 二、语法精讲 （一）什么是宾语从句？ 在句子中，充当宾语成分的从句，就叫宾语从句。 1. 普通句子简单宾语：I know the answer.（名词作宾语） 2. 宾语从句：I know that reading is important.（完整句子作宾语） （二）宾语从句三大核心引导词 1. that 引导的宾语从句 · 用法：用来陈述一个肯定的事实、看法、观点，本身无实际汉语含义，只起连接作用。 · 可省略规则：that 在口语、非正式写作中经常可以直接省略。 · 常见主句动词：think, believe, find, understand, say, know, hope 等 · 教材原句： · I believe (that) reading is important for learning. · Peter finds (that) he can connect physics with something in real life. · 例句： · I think (that) taking notes helps a lot with study. 我认为记笔记对学习帮助很大。 2. if / whether 引导的宾语从句 · 用法：用来表示疑问、不确定、想知道，翻译为**“是否”** · 区别细节： a. 一般情况，if 和 whether 可以互换 b. 句子末尾有 or not 时，只能用whether，绝对不能用if c. 介词后面、不定式 to do 前面，只能用whether · 教材原句： · I wonder if / whether you could help me. · I want to know if / whether you read English books outside class. · 例句： · She wonders whether she can improve her English quickly. 她想知道自己能不能快速提升英语。 · I don't know whether he will join the study club or not. 我不知道他要不要参加学习社团。 （三）宾语从句三大黄金语序 ✅ 无论主句是什么语气，宾语从句必须用【陈述语序】：主语 + 谓语 + 其他 ❌ 错误：I wonder what is good learning.（疑问语序） ✅ 正确：I wonder what good learning is.（陈述语序） 口诀：主句不变从句变，疑问语序陈述化 （四）宾语从句时态配对规则 1. 主句为现在时态（一般现在、现在进行、现在完成）→ 从句可以根据实际意思，用任意时态 · I know that he studies very hard.（从句一般现在） · I know that he studied hard last year.（从句一般过去） 2. 主句为过去时态（一般过去、过去进行）→ 从句必须改为对应的过去相关时态（客观真理除外） · He said that reading was very important.（现在→过去） 3. 从句表述客观真理、自然规律、永恒事实 → 从句时态永远用一般现在时，不受主句时态影响 · Our teacher told us that the earth goes around the sun. （五）否定转移 当主句动词为 think/believe/suppose，且主语是第一人称（I/we），从句的否定要前移到主句 ❌ I think it isn't easy to learn well. ✅ I don't think it is easy to learn well. （六）教材特殊拓展&易错点 1. that 只有在引导陈述句宾语从句时可以省略，if/whether 绝对不能省略 2. 本单元高频主句结构： · I wonder... 我想知道…… · I want to know... 我想要了解…… · Sb. suggests that... 某人建议……（从句常用虚拟语气 ） 三、专项练习题 选词填空：用 that / if / whether 填空 1. Jim doesn't know ____________ he can join the research project or not. 2. My parents think ____________ I need to improve my learning habits. 3. Ms Gao understands ____________ some students need more time to study. 4. Terry wonders ____________ online courses will be helpful for him. 5. Could you tell me ____________ this English sentence is right? 6. I believe ____________ everyone can become a good learner. 7. We are not sure ____________ we will have a learning survey tomorrow. 8. She asks ____________ we have finished our reading tasks. 9. I hope ____________ I can learn better this term. 10. Nobody knows ____________ the method works or not. 单项选择题 1. I believe ____________ reading more can make us better learners. A. that B. if C. whether 2. He wonders ____________ he can pass the exam or not. A. if B. whether C. that 3. Could you tell me ____________ I should take notes while studying? A. whether B. what C. who 4. My teacher says ____________ practice makes perfect. A. if B. whether C. that 5. We ____________ think ____________ it is easy to learn all subjects well. A. don't; that B. /; that C. don't; if 6. —Do you know ____________ we will have a test next week? —Sorry, I don't know. A. that B. whether C. what 7. She didn't tell us ____________ she would try the new learning way. A. if B. what C. who 8. I find ____________ active learning is the best way to study. A. whether B. that C. if 9. I want to know ____________ you have any good advice for me. A. that B. if C. what 10. The boy asked ____________ he could learn maths well quickly. A. that B. whether C. which 11. ____________ is hard to believe ____________ he failed the exam. A. It; that B. That; that C. It; whether 12. He asked me: "Are you a good learner?" → 改为宾语从句： He asked me ____________ I ____________ a good learner. A. if; am B. if; was C. that; was 句型改写 1. Does active learning help a lot? I wonder.（合并为宾语从句） _____________________________________________________________________ 2. Good learners take notes well. I believe.（合并为宾语从句） _____________________________________________________________________ 3. Will he improve his English? Nobody knows.（合并） _____________________________________________________________________ 4. I think that it is not hard to learn well.（改正否定转移） _____________________________________________________________________ 5. "Reading is important." The teacher said.（改为宾语从句） _____________________________________________________________________ 6. I don't know. Should I try this learning method?（合并为宾语从句） _____________________________________________________________________ 句子改错 1. I wonder that you can help me with my study. _____________________________________________________________________ 2. He doesn't know if he will come here or not. _____________________________________________________________________ 3. Could you tell me what is the best way to learn? _____________________________________________________________________ 四、参考答案 选词填空 1. whether （末尾有or not，只能用whether） 2. that （陈述看法，无疑问） 3. that （陈述事实） 4. if / whether （表是否，无or not，二者通用） 5. if / whether （表是否） 6. that （陈述观点） 7. if / whether （不确定，表是否） 8. if / whether （询问是否） 9. that （陈述希望） 10. whether （末尾有or not，固定用whether） 单项选择题 1. A 解析：陈述自己的观点看法，用that引导。 2. B 解析：末尾有or not，只能用whether。 3. A 解析：询问“是否应该”，用whether。 4. C 解析：引用谚语、客观道理，用that引导。 5. A 解析：第一人称I/we，否定转移到主句，从句用that。 6. B 解析：询问“下周是否考试”，表不确定，用whether。 7. A 解析：主句过去时态，从句表“是否”，用if/whether，选项只有if。 8. B 解析：陈述发现的事实，用that。 9. B 解析：想知道“你是否有建议”，用if/whether。 10. B 解析：询问“是否能快速学好数学”，用whether。 11. A 解析：固定句型It is + adj. + that从句，主语从句。 12. B 解析：一般疑问句改宾语从句用if，主句过去时，am变was。 句型改写 1. I wonder if/whether active learning helps a lot. 解析：一般疑问句改宾语从句，用if/whether，语序变陈述。 2. I believe (that) good learners take notes well. 解析：陈述句改宾语从句，that可省略。 3. Nobody knows whether/if he will improve his English. 4. I don't think that it is hard to learn well. 解析：否定转移，从句否定必须移到主句。 5. The teacher said (that) reading was important. 解析：主句过去时，从句is变was。 6. I don't know whether I should try this learning method. 句子改错 1. that → if/whether 解析：wonder后接不确定的疑问，不能用that，要用是否。 2. if → whether 解析：出现or not，必须把if改为whether。 3. is the best way → the best way is 解析：宾语从句必须用陈述语序：主语+谓语。 ( 1 ) 学科网（北京）股份有限公司 $