It's 形容词 for sb to do sth-2025-2026学年九年级英语全一册句型全解（北师大版）

九年级全一册北师大版 【核心句型专练】A版句型全解 中考重点 【A版句型全解】It's+形容词+for sb to do sth 初中·北师大版·九年级全一册 基本结构 句型结构：Itis+形容词+for sb.+to do sth. It为形式主语，真正主语是后置的不定式短语to do sth, sb.为人称代词时需用宾格形式(me/him/her/them等) 例句展示： It is necessary for students to follow school rules. (对学生来说，遵守校规是必要的) It is useful for us to learn how to use computers. (对我们来说，学习使用电脑是有用的) 句型精讲（核心考法） 考法1：区分for与of的用法（中考高频考点) 判断规则+例句对比 规则1：形容词描述to do sth.这件事的性质或特点（如difficult,.easy,important,necessary, possible等)→用for 例句：It is necessary for students to finish homework on time. 验证：Students are necessary逻辑不通 规则2：形容词描述s.的品质或性格（如kind,nice,clever,foolish,polite,brave等）→用 of 例句：It is polite of her to give seats to the old.. 验证：She is polite逻辑通顺 真题再现(2024北师大版九年级全一册配套中考模拟题) 九年级全一册北师大版 【核心句型专练】A版句型全解 It is dangerous children to play with fire. A.of B.for C.with D.at 答案：B 解析：dangerous描述”玩火'这件事的性质，不修饰人，用for (2023北师大版九年级全一册教材同步测试) It's very nice you to invite us to the party. A.of B.for C.to D.with 答案：A 解析：nice描述人的品质，”you are nice'逻辑通顺，用of 考法2：句型的同义句转换 转换规则+例句转换 规则：去掉形式主语It,保留形容词，将for/of sb.中的sb.作为句子主语，结构变形为To do sth.is+adj.+for/ofsb.(不定式短语作主语时，谓语动词用单数) 例句1：原句It is easy for him to solve the problem 同义句：To solve the problem is easy for him. 例句2：原句It is silly of Tom to believe the stranger. 同义句：To believe the stranger is silly of Tom. 真题再现(2024北师大版九年级全一册单元练习) It is important for us to protect the environment.（改为同义句) the environment is important for us. 2 九年级全一册北师大版 【核心句型专练】A版句型全解 答案：To protect (2023北师大版九年级全一册期中测试改编) It is kind of you to help the homeless dog.(改为同义句) the homeless dog is kind of you. 答案：To help 考法3：对句型中不同成分提问 提问规则+例句提问 规则1：对形容词提问→用How+be+it+for/ofsb.+to do sth.? 例句：原句It is difficult for her to pass the exam. 间句：How is it for her to pass the exam? 规则2：对sb.提问→用Who+be+it+adj.+for/of+to do sth.? 例句：原句It is kind of Lucy to help the poor boy. 间句：Who is it kind of to help the poor boy? 规则3：对不定式短语提问→用What+be+it+adj.+for/ofsb.+todo? 例句：原句It is meaningful for us to join the volunteer activity.. 间句：What is it meaningful for us to do? 真题再现(2023北师大版九年级全一册期末测试改编) It is very interesting for us to play chess.(对划线部分提问) it for you to play chess? 答案：How is (2024北师大版九年级全一册中考复习题) It is foolish of him to waste time on games.(对划线部分提问) is it foolish of waste time on games? 答案：Who;to 句型综合训练 3 九年级全一册北师大版 【核心句型专练】 A版句型全解 训练1：单项选择（考察for/of辨析） 1.It is wise the girl to ask for help when she is in trouble. A.of B.for C.with D.to 2.It is important students to master basic computer skills. A.of B.for C.about D.from 3.It's careless him to leave his phone on the bus. A.of B.for C.in D.at 4.It is possible us to finish the project before Friday. A.of B.for C.on D.with 5.It is polite you to hold the door for others. A.of B.for C.to D.from 训练2：同义句转换（考察句型变形) 1.It is easy for children to learn a new language. a new language is easy for children. 2.It is kind of my friend to share his books with me. his books with me is kind of my friend. 3.It is necessary for us to keep our promises. our promises is necessary for us 九年级全一册北师大版 【核心句型专练】A版句型全解 4.It is brave of the soldier to fight for his country. → for his country is brave of the soldier. 5.It is difficult for her to adapt to the new environment. to the new environment is difficult for her 训练3：完成句子（考察语境运用） 1.对他来说，按时完成作业很必要。 →It is necessary finish homework on time. 2.你真是太好了，帮我解决了这个问题。 →It is nice help me solve this problem. 3.对我们来说，每天锻炼一小时很有益。 →It is useful exercise for an hour every day. 4.她真善良，收养了那只流浪猫。 →It is kind adopt the stray cat 5.对学生来说，认真听讲很重要。 →It is important listen carefully in class 训练4：写作高级句式 1.对每个人来说，保持健康的生活方式是很重要的。 →It is important keep a healthy lifestyle. 2.他真是太愚蠢了，竞然相信那些谣言。 →It is foolish believe those rumors. 3.对我们来说，保护环境是我们的责任。 →It is our duty protect the environment. 4.她真勇敢，独自穿越了那片森林。 →It is brave walk through the forest alone 参考答案 I.训练1：单项选择 1.A2.B3.A4.B5.A 5 九年级全一册北师大版 【核心句型专练】 A版句型全解 Ⅱ.训练2：同义句转换 1.To learn 2.To share 3.To keep 4.To fight 5.To adapt ⅡI.训练3：完成句子 1.for him to 2.of you to 3.for us to 4.of her to 5.for students to V.训练4：写作高级句式 1.for everyone to 2.of him to 3.for us to 4.of her to 6