Unit 5 语法讲解及习题：宾语从句（Object clauses）2025-2026学年沪外教英语八年级上册

沪外教英语八上Unit5语法讲解及习题 宾语从句（Object clauses） 一、语法核心讲解 （一）宾语从句的基本概念 含义：在句子中充当宾语的从句，用来表达“说/想/知道/问”的具体内容。 结构：主句 + 引导词 + 从句（陈述语序） （二）三大类引导词 1. that 引导（陈述事实） · 用于表达确定的事实，that 在口语中常可省略。 · 后接陈述语序的句子。 · 常见动词：say, think, believe, hope, suggest, find, agree 等 例：You can find that several cultures share this custom. 例：I hope (that) you can come to my party. 2. if / whether 引导（表“是否”） · 用于表达不确定的疑问，意为“是否”。 · 后接陈述语序的句子。 · 常见动词：ask, wonder, know, want to know 等 例：I wonder if/whether they eat pancakes with one hand. 例：She asks whether I can help her. 3. wh- 疑问词引导（what/when/where/who/why/how 等） · 用于表达具体的疑问内容，疑问词本身在从句中充当成分（主语/宾语/状语）。 · 后接陈述语序的句子。 · 常见动词：ask, know, wonder, tell, forget, remember 等 例：There is a poem about what seeing a different number of magpies means. 例：I don’t know when he will come back. （三）核心规则：陈述语序 宾语从句必须使用陈述语序（主语在前，谓语在后），不能用疑问语序。 ❌ 错误：I don’t know where can I put it. ✅ 正确：I don’t know where I can put it. （四）核心对比表 引导词 含义 从句语序 常见动词 示例 that （无实义，表事实） 陈述语序 say, think, believe, hope, find Five and six suggest that the person will be wealthy. if/whether 是否 陈述语序 ask, wonder, want to know I wonder if they eat pancakes. wh- 什么/何时/哪里/为什么/如何 陈述语序 ask, know, wonder, tell There is a poem about what magpies mean. 二、习题 题型1：单项选择 1. I think __________ it is important to learn about different cultures. A. that B. if C. what D. when 2. She asks __________ I can go with her to the tea party. A. that B. if C. what D. where 3. Do you know __________ the custom of kissing comes from? A. that B. if C. where D. whether 4. I wonder __________ they will celebrate Diwali this year. A. that B. what C. if D. where 5. He tells me __________ he has visited many countries. A. that B. if C. what D. when 6. Can you tell me __________ I should take off my shoes indoors in Japan? A. that B. if C. what D. where 7. I don’t know __________ the custom started. A. that B. if C. when D. whether 8. She believes __________ the tradition will be kept alive. A. that B. if C. what D. where 9. We want to know __________ we can do to protect our culture. A. that B. if C. what D. when 10. He asks __________ I prefer tea or coffee. A. that B. whether C. what D. where 题型2：用that/if/whether/wh-词填空 （一）基础填空 1. Can you tell me __________ I should be careful? 2. I wonder __________ they eat pancakes with one hand. 3. Do you know __________ they can use the left hand to shake hands? 4. You never know __________ will happen if you use your left hand. 5. May I ask __________ I can use my left hand there? （二）篇章填空 1. It is important to remember __________ you should never wear shoes indoors in Japan. 2. Do you want to know __________? 3. You will find __________ most Japanese floors are covered with tatami. 4. It’s not hard to understand __________ it is impolite to enter with shoes on. 5. Make sure __________ you take them off at the door. 题型3：句型转换 1. I think. It is important to learn about culture.（合并为宾语从句） → I think __________ it is important to learn about culture. 2. She asks. Can you help her?（合并为宾语从句） → She asks __________ I can help her. 3. I don’t know. Where is the museum?（合并为宾语从句） → I don’t know __________ the museum is. 4. He says. He will visit China.（合并为宾语从句） → He says __________ he will visit China. 5. I wonder. Will they come?（合并为宾语从句） → I wonder __________ they will come. 题型4：判断正误并改正 1. （ ）I don’t know where can I go. → ____________________ 2. （ ）She thinks if it is right. → ____________________ 3. （ ）He asks what is your name. → ____________________ 4. （ ）I believe that he will come. → ____________________ 5. （ ）Do you know when will he arrive? → ____________________ 三、答案与解析 题型1：单项选择 1. A 解析：that 引导陈述事实的宾语从句。 2. B 解析：if 表“是否”，询问不确定的事。 3. C 解析：where 询问来源地点。 4. C 解析：if 表“是否”，询问庆祝方式。 5. A 解析：that 引导陈述事实的宾语从句。 6. B 解析：if 表“是否”，询问是否需要脱鞋。 7. C 解析：when 询问习俗开始的时间。 8. A 解析：that 引导陈述事实的宾语从句。 9. C 解析：what 询问“能做什么”，在从句中作宾语。 10. B 解析：whether 表“是否”，用于选择疑问句。 题型2：用that/if/whether/wh-词填空 （一）基础填空 1. why 2. how 3. if/whether 4. what 5. if/whether （二）篇章填空 1. that 2. why 3. that 4. why 5. that 题型3：句型转换 1. that 2. if/whether 3. where 4. that 5. if/whether 题型4：判断正误并改正 1. × 改正：can I → I can（宾语从句用陈述语序） 2. × 改正：if → that（thinks 后接陈述事实，不用 if） 3. × 改正：is your name → your name is（宾语从句用陈述语序） 4. √ 5. × 改正：will he → he will（宾语从句用陈述语序） ( 1 ) 学科网（北京）股份有限公司 $