Unit2语法专项课件 It 核心固定句型语法专项 2026-2027学年人教版九年级英语上册

该初中英语课件聚焦九年级上册Unit2 It核心固定句型，涵盖形式主语（It is/was + adj. + for/of sb. to do）和强调句（It is/was…that…），通过先拆解形式主语句型（含结构、for/of区分、时态及句式变换）再过渡到强调句（成分强调、与定语从句区分），构建由基础到进阶的学习支架。 其亮点在于采用对比表格（for/of修饰对象及转换测试）、真实实例（如屠呦呦发现青蒿素强调句、鲁迅创作小说形式主语句）和分层练习（填空、选择、改写、改错），结合语言能力（句式灵活转换）和思维品质（易混点精准辨析），助力学生掌握语法应用，教师可借助系统结构和易错点汇总提升教学效果。

教学课件 新人教版九年级上册 Unit2 语法专项 —— It 核心固定句型语法专项 全解精讲+分层练习 1 1.掌握 It is/was + adj. + (for/of sb.) to do 结构 2.分清 for sb. 与 of sb. 使用场景，突破易错题 3.熟练变换否定、疑问两种句式 4.吃透 It is/was…that… 强调句型四大用法 5.区分强调句与定语从句，规避混淆点 学习目标 单元两大核心语法总览 1.句型 1：it 作形式主语（中考必考基础句型） 结构：It be + adj. + for/of sb. to do sth. 2.句型 2：it 强调句（书面表达高频加分句型） 结构：It be + 被强调部分 + that/who… 3.it 无实义，仅作占位，平衡英文句子结构 4.本节课先拆解形式主语句型，再讲强调句 句型一 基础结构拆解 1.完整公式：It + be + 形容词 + for/of sb. + to do 2.it：形式主语，只占位，无实际翻译含义 3.to do sth.：真正主语，代表 “做某事” 这件事 4.中文翻译：（某人）做某事是…… 的 5.例句：It is easy for us to memorize sentences. 句型一 1.例句：It is important for us to keep going. 翻译：坚持前行对我们而言十分重要 2.例句：It was wise of him to give up bad habits. 翻译：他能戒掉坏习惯，十分明智 3.时态区分：现在用 is，过去人物事迹用 was 重难点 for sb. VS of sb.（of 用法） 1.of sb.：形容词形容人的性格、品德 2.高频形容词：kind、brave、wise、honest、nice 3.判断技巧：可改写 Sb. + be + 形容词，通顺 4.验证：It’s nice of Lily to help me. → Lily is nice. 逻辑成立，用 of 重难点 for sb. VS of sb.（for 用法） 1.for sb.：形容词评价事情难易、必要性、危险性 2.高频形容词：difficult、easy、important、dangerous 3.判断技巧：不能改写 Sb. + be + 形容词 4.验证：It’s hard for kids to learn math fast. → Kids are hard. 语义不通，用 for for/of 区分对比表格 分类 of sb. for sb. 修饰对象 人本身品格 事情 / 行为 转换测试 Sb. be adj. 通顺 Sb. be adj. 不通顺 代表词汇 brave, kind, honest difficult, necessary 句型一时态变化规则 1.一般现在时 It is：客观道理、日常观点 例句：It is helpful for us to read English daily. 2.一般过去时 It was：历史人物、过去事件 例句：It was brave of Qu Yuan to care about his country. 3.核心：根据动作发生时间更换 be 动词 句型一 否定句变形规则 1.否定公式：It is/was not + adj. + for/of sb. to do 2.简写：It isn’t / It wasn’t 3.基础例句：It isn’t easy for me to finish homework. 4.过去式例句：It wasn’t silly of him to ask questions. 句型一 一般疑问句变形 1.疑问公式：Is/Was it + adj. + for/of sb. to do? 2.现在时问句：Is it useful for us to study history? 3.过去时问句：Was it great of him to save strangers? 4.回答：Yes, it is./ No, it wasn’t. 句型二 It is/was…that… 强调句介绍 1.核心作用：刻意突出句子某一成分，加强语气 2.固定结构：It be + 被强调部分 + that + 剩余句子 3.时态规则：现在事件用 is，过去事件用 was 4.人可用 who，事物 / 地点 / 时间只能用 that 强调句原句示范 原句：Tu Youyou discovered artemisinin in China. 翻译：屠呦呦在中国发现了青蒿素 可强调四类成分：主语、宾语、地点、时间 去掉 It be…that 后，句子依旧完整通顺 强调主语 & 宾语例句 1.强调主语（人）： It was Tu Youyou who discovered artemisinin in China. 2.强调宾语（事物）： It was artemisinin that Tu Youyou discovered in China. 强调地点 & 时间状语例句 1.强调地点： It was in China that Tu Youyou discovered artemisinin. 2.强调时间（补充 last century）： It was last century that Tu Youyou discovered artemisinin. 快速判定强调句技巧 1.步骤 1：删除句首 It is/was 和连接词 that 2.步骤 2：重组剩余单词，能组成完整通顺陈述句 3.满足条件 = 标准强调句 4.反例：去掉框架后句子残缺，则不是强调句 拓展区分：强调句 vs 定语从句 1.强调句：去掉 It be…that，句子完整独立 例：It was Tom that I met. → I met Tom. 2.定语从句：去掉 that，句子成分缺失 例：This is the man that I met. → This is the man.（语义残缺） 拓展 it 句型 1 It seems that… 1.含义：看起来、似乎…… 2.基础例句：It seems that he knows the truth. 翻译：他似乎知道真相 3.变形搭配：It seems + adj. + for sb. to do 拓展 it 句型 2 It seems impossible for sb. to do 1.释义：某人做某事看起来不可能 2.例句：It seemed impossible for him to win the race. 3.时态：现在 seems，过去 seemed 4.常用来描写人物克服困难的故事 拓展 it 句型 3 It is + 名词 + to do sth. 1.结构：It be + 名词短语 + to do（形式主语） 2.例句 1：It is a great honor to meet the hero. 3.例句 2：It is a big chance to visit the museum. 4.名词：honor、chance、pity、pleasure 语法知识点整体小结 1.形式主语：it 占位，to do 为真正主语，分清 for/of 2.be 动词时态：is 表现在，was 表过去 3.强调句：It be…that，删框架句子完整 4.拓展句型：It seems that、It is + 名词 + to do 5.句式可灵活改写否定、疑问、强调句式 专项习题一 用 for/of 填空 1.It is clever __________her to solve the math problem. 2.It is hard __________ teenagers to balance study and rest. 3.It was kind __________the nurse to look after patients. 4.It is dangerous__________children to play near rivers. 5.It was stupid__________ him to refuse this good chance. of for of for of 6.It is necessary__________ us to keep exercising every day. 7.It is honest__________Tom to tell the teacher the truth. 8.It is easy__________you to understand this story. 9.It was brave__________the doctor to fight the illness. 10.It is helpful__________students to read more articles. for of for of for 专项习题二 单项选择 1.It’s really wise ______you to refuse bad online games. A. for B. of C. to 2.______ important ______us to learn traditional culture. A. It; to B. It’s; for C. That; for 3.It was ______Lu Xun to write many great novels. A. wise for B. wise of C. wisely of 4.It_______difficult for people to travel long ago. A. is B. was C. were 5.—______ is useful______us to watch biographies. —Yes, we can learn much spirit. A. It; for B. That; for C. It; of B B B B A 6.It was polite ______kids ______greet elders. A. of; to B. for; to C. of; for 7.It______surprising that the kid knew so much history. A. is B. was C. are 8.It is not______for everyone to become famous. A. easily B. easy C. easiness 9.It was______of volunteers to help poor kids. A. warm B. warmly C. warmth 10.It is only______you to plan your own future. A. of B. for C. to A B B A B 专项习题三 句型改写 1.To protect nature is our duty.（改为 it 作形式主语） 2.She is honest to tell all the mistakes.（It was…of 改写） 3.We should respect heroes. It is right.（合并 It is of 句型） It is our duty to protect nature. It was honest of her to tell all the mistakes. It is right of us to respect heroes. 4.Reading great people’s stories moves us.（It is +adj.+to do） 5.The scientist made important discoveries last year.（强调主语） 6.It is good for us to take morning exercise.（改为否定句） It is always moving to read great people’s stories. It was the scientist that/who made important discoveries last year. It is not good for us to take morning exercise. 专项习题四 句子改错 1.It was very warm for you to help the old man. 2.It important for students to learn to be thankful. 3.It was simple of him to finish this difficult task. 4.It is amazing which he finished the project alone. for → of （warm 形容人的品格） It → It’s（缺少 be 动词 is） of → for（simple 形容事情难度） which → that（固定句型用 that） 易混易错点汇总 1 1.of 修饰人品格，for 修饰事情属性，切勿混用 2.it 作形式主语必须搭配 be 动词，不能缺少 is/was 3.强调句无论强调人 / 物，连接词优先用 that 4.be 动词时态统一，过去场景全部用 was 易混易错点汇总 2 1.be 动词后必须放形容词原形，不用副词 2.It is + 名词句型后固定接 to do 不定式 3.疑问句要把 Is/Was 提前，不能放在 it 后 4.判断强调句：删除框架后句子完整才成立 教学课件 Unit2 语法专项 —— It 核心固定句型 Thank you for listening! 31 $