Unit5语法专项课件 that,if,whether 宾语从句 + 感叹句 2025-2026学年鲁教版(五四学制)八年级英语下册

教学课件 鲁教（五四制）英语八年级下册 Unit5 语法专项—— that/if/whether 宾语从句 + 感叹句 全解精讲+分层练习 1 学习目标 1.掌握宾语从句的三大要素：引导词、语序、时态 2.分清 that / if / whether 的用法与区别 3.牢记必须用 whether 的三种特殊情况 4.熟练掌握 What / How 引导感叹句的结构 宾语从句—概念 1.宾语从句：在复合句中充当宾语的句子 2.结构：主句 + 引导词 + 从句 3.本单元重点引导词：that, if, whether 4.从句必须具备三要素：引导词、语序、时态 5.是期中、期末必考语法点 宾语从句引导词—that that 引导陈述句 本身无词义，只起连接作用 口语与非正式语境中可省略 例句：I know (that) he is right. 适用动词：know, think, believe, say 宾语从句引导词—if / whether if / whether 引导一般疑问句 含义：是否 不作成分，不能省略 例句：I wonder if he will come. 多数情况下二者可以互换 宾语从句—语序（核心） 宾语从句必须用陈述语序 结构：主语 + 谓语 + 其他 绝对不能用疑问语序 正确：Do you know where he is? 错误：Do you know where is he? 宾语从句—时态（1） 1.主现从不限：主句现在时，从句时态随意 例：He says that he will come tomorrow. 2.主过从必过：主句过去时，从句用过去时态 例：She said that she went there every day. 宾语从句—时态（2） 1.真理永一现：客观真理永远用一般现在时 例：The teacher said the earth goes around the sun. 2.自然规律、科学事实都用一般现在时 3.不受主句任何时态影响 宾语从句三大要素总结 1.引导词：陈述用that；疑问用if/whether 2.语序：永远陈述语序（主+谓） 3.时态：主现从不限；主过从必过；真理一现 感叹句—概念 1.感叹句：表达强烈情感（喜、怒、赞、叹） 2.句末用感叹号 ! 3.本单元重点：What / How 引导 4.考试常考：句型转换、单选、同义句 What 引导感叹句（1） 1.What + a/an + 形 + 可数名词单数 +（主+谓） 2.例：What a nice day it is! 3.What + 形 + 可数名词复数 +（主+谓） 4.例：What good students they are! What 引导感叹句（2） 1.What + 形 + 不可数名词 +（主+谓） 2.常考不可数：news, weather, fun, music, water 例：What great news it is! 例：What delicious food it is! How 引导感叹句 How + 形容词/副词 +（主+谓） 例：How fast he runs! 例：How beautiful the girl is! How 修饰形容词、副词或整个句子 How time flies! （时光飞逝） What / How 快速判断法 1.看核心词：是名词 → 用 What 2.是形容词/副词 → 用 How 3.有 a/an 优先考虑 What 4.没有名词，直接用 How 基础单选 1.I believe ______ he is a good student. A. that B. if C. whether D. where 2.I wonder ______ you can help me. A. that B. if C. what D. when 3.I don’t know ______ or not he will come. A. if B. whether C. that D. which 4.He said that the sun ______ in the east. A. rises B. rose C. rising D. risen A B B A 5.She told me she ______ to Beijing the next day. A. will go B. would go C. goes D. went 6.______ nice weather it is! A. What B. What a C. How D. How a 7.______ beautiful the flowers are! A. What B. What a C. How D. How a 8.Do you know ______ she lives? A. what B. where C. which D. who B A C B 9.______ exciting film it is! A. What B. What an C. How D. How an 10.He asked ______ I liked English. A. that B. if C. which D. what 11.______ fast she swims! A. What B. What a C. How D. How a 12.We are talking about ______ we can help him. A. if B. whether C. that D. who B B C B 句型转换 1.I think that he is right.（一般疑问句） ______ you ______ that he is right? 2.She says that she will help me.（否定句） She ______ ______ that she will help me. 3.He wants to know. Will you go?（合并） He wants to know ______ you ______ go. Do think doesn’t say if will 4.The girl is very clever.（感叹句） ______ ______ the girl is! 5.It is a tall building.（感叹句） ______ ______ tall building it is! 6.I don’t know where I can go.（简单句） I don’t know where ______ ______. How clever What a to go 7.What a nice pen it is!（同义句） ______ ______ the pen is! 8.He asked, “Can you swim?”（合并） He asked ______ I ______ swim. 9.They don’t know. Should they go?（合并） They don’t know _________ to go. How nice if could whether 易混点辨析—if / whether 1.互换情况：wonder/know 后表“是否” 2.必须用 whether：or not、介词后、to do 前 3.if 还可引导条件状语从句（如果） 4.whether 只表“是否”，无歧义 5.考试优先选 whether 更稳妥 易混点—时态陷阱 1.主句过去时，从句过去时态 2.真理、规律永远一般现在时 3.明天/next year 等将来时不变 4.过去完成时：动作发生在主句之前 5.看到 said/knew 要格外注意时态 课堂总结（1） 1.宾语从句三要素：引导词、语序、时态 2.陈述用 that；疑问用 if / whether 3.语序永远是：主语 + 谓语 4.时态遵循三原则：主现、主过、真理 5.whether 比 if 更正式、用法更广 课堂总结（2） 1.感叹句：名词用 What；形/副用 How 2.What 有三种结构，注意单复数 3.How 直接修饰形容词或副词 4.同义句转换常考 What ↔ How 5.多练多记，考试不丢分 教学课件 Unit5 语法专项—— that/if/whether 宾语从句 + 感叹句 Thank you for listening! 25 $