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

九年级全一册北师大版 【寒假专版】 北师大版句型辨析 寒假专版 【北师大版句型辨析】It's+形容词+for sb to do sth结构精讲 初中英语·北师大版九年级全一册 句型辨析精讲 辨析一It's+形容词+for sb to do sth vs It's+形容词+of sb to do sth 维度 It's+形容词+for sb to do sth It's+形容词+of sb to do sth 核心含义 形容事物特征或行为难易（对形容人的品质或性格（某人做 某人而言做某事是…的) 某事真是…的) 形容词类型 描述事物属性：easy,difficult,.描述人品质：kind,nice,clever,. important,necessary,possible foolish,polite,brave 等 逻辑关系 形容词与不定式逻辑上构成形容词与sb逻辑上构成“某人 “做某事是…的” 是…的”(sb是形容词的逻 辑主语) 例句对比 It's important for us to learn English well.(学好英语这件事重要) It's kind of you to help me with my homework.(你帮助我做作业，你很善良) 真题链接（北师大版九年级上册期中真题） very brave the soldier to save the child from the fire. A.It;of B.It;for C.That;of 答案：A解析：brave描述人的品质（士兵勇敢），用of:it作形式主语，选A。 九年级全一册北师大版 【寒假专版】 北师大版句型辨析 辨析二It's+形容词+for sb to do sth vs主语+be+形容词+to do sth 维度 It's+形容词+for sb to do sth主语+be+形容词+to do sth 主语类型 t作形式主语，真正主语是不主语为具体名词/代词（人或 定式 物)，不定式作状语 逻辑关系 强调“做某事对某人而言如强调“主语具备做某事的性 何” 质/状态” 形容词适用 多为描述行为普遍性的词：i-多为描述主语能力/性质的词： portant,necessary,common easy,hard,difficult,heavy,light 等 例句对比 It's necessary for students to follow the rules.(对学生而言遵守规则有必要) The rules are easy to follow.(规则容易遵守) 真题链接（北师大版九年级下册同步练习） The math problem is difficult work out.Let's ask the teacher for help A.too;to B.enough;to C.so;that 答案：A解析：句意为“这道数学题太难了做不出来”，用to0to.(太…而不能…)：若用 It's+adj+for sb to do sth结构应为“It's too difficult for us to work out the math problem”,此处主语 是problem,直接用“主语+be+adj+todo”结构的变式too.to.,选A。 辨析三It's+形容词+for sb to do sth vs动名词作主语 维度 It's+形容词+for sb to do sth动名词作主语 表达侧重 强调具体某次行为或动作的强调习惯性、抽象性的行为或 必要性/可能性 状态 语气强弱语气较正式，常用于书面语或 语气较口语化，常用于陈述事 建议 实或经验 否定形式在不定式前加not:It's impor.. 在动名词前加not:Not being tant for us not to be latel late is important for us. 例句对比 It's good for you to take exercise every day.(建议每天锻炼对你有好处) Taking exercise every day is good for you.(陈述每天锻炼是对你有好处的事) 九年级全一册北师大版 【寒假专版】 北师大版句型辨析 真题链接（北师大版九年级上册月考真题） is necessary for everyone_breakfast every momning. A.That;to eat B.It;to eat C.This;eating 答案：B解析：固定句型It's+adj+for sb to do sth,it作形式主语，真正主语是不定式to eat breakfast,.选B。 综合训练 1.It's for us keep quiet in the library. A.necessary,to B.kind;of C.brave;for 2.clever the girl to solve the math problem in five minutes. A.That;for B.It;of C.It;for 3.The story is interesting read.All the children love it. A.too;to B.enough;to C.so;that 4.is important for studentsEnglish every day. A.This;practicing B.It;to practice C.That;practice 从It's+adj+for sb to do sth/It's+adj+of sb to do sth中选择合适的结构完成句子 1. (kind/help the old man cross the road) 3 九年级全一册北师大版 【寒假专版】北师大版句型辨析 2.(necessary/learn basic life skills) 3. (foolish /believe such a lie) 4. (possible finish the work in three days) 1.To learn English well is important for us.It's adj+for sb to do sth) 2.You are polite to wait in line.(用It's+ad+of sb to do sth改写) 3.The problem is too difficult for me to work out..（用It's+adj+for sb to do sth改写) I.单项选择 1.A2.B3.B4.B Ⅱ选短语填空/完成句子 1.It's kind of you to help the old man cross the road 2.It's necessary for us to learn basic life skills 3.It's foolish of him to believe such a lie 4.It's possible for them to finish the work in three days I.句型转换 1.It's important for us to learn English well. 2.It's polite of you to wait in line. 3.It's too difficult for me to work out the problem. 4