It's 形容词 for sb to do sth-2025-2026学年七年级英语下册句型辨析（北师大版）

初一下册北师大版 【寒假专版】 C版句型辨析 寒假专版 【C版句型辨析】t's+形容词+for sb to do sth结构精讲 初中英语·北师大版初一下册 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 表示”做某事对某人来说是表示”某人做某事是…的”， …的”，强调事物的性质或特强调人的品质或性格 征 形容词类型 多为描述事物特征的形容词多为描述人品质的形容词（如 (l important,necessary,diffi-kind,nice,good,clever,foolish, cult,easy,possible) polite等) 逻辑关系 for后的sb是动作的承受者或of后的sb是动作的发出者，且 对象 形容词可用来直接修饰sb(sb is+形容词) 例句对比 It's important for us to learn English well..(学英语对我们来说是重要的，important描述”学英语” 这件事) It's kind of you to help me..(你帮助我真是太好了，kind描述”你'的品质，you are kind) 真题链接（北师大版初一下册期中真题） very kindyou to help the old man cross the road. A.It's;for B.That's;of C.It's;of 答案：C解析：形容词kind描述人的品质，且可以说you are kind,故用It's+形容词+of sb to do sth结构，选C。 初一下册北师大版 【寒假专版】 C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 句子结构t作形式主语，真正主语是后主语是具体的人或事物，不定 面的不定式to do sth 式to do sth作状语 适用场景 当不定式短语较长时，用t作主语通常是表示事物的名词， 形式主语，避免句子头重脚轻且形容词多为easy,difficult,. hard,heavy,light等 例句对比 It's difficult for the little boy to carry the heavy box.(不定式短语较长，用it作形式主语) The heavy box is difficult for the little boy to carry.(主语是具体事物the heavy box,.后接不定式作 状语) 真题链接（北师大版初一下册同步练习） English is not easy well. A.to learn B.for learn C.it to learn 答案：A解析：此句为主语+be+形容词+to do sth结构，主语是English,be easy to learn表示” 容易被学习”，选A。 辨析三It's+形容词+for sb to do sth vs It takes sb some time to do sth 维度 It's+形容词+for sb to do sth It takes sb some time to do sth 核心含义强调做某事的性质或特征（如强调做某事花费的时间 难易、重要性等) 固定搭配形容词(important,.necessary takes-+sb+时间+todo(takes 等)+for sb to do 有人称和时态变化) 例句对比 It's necessary for us to finish the work on time.(强调按时完成工作的必要性) It takes me two hours to finish my homework every day..(强调完成作业花费的时间) 真题链接（北师大版初一下册期末真题） 2 初一下册北师大版 【寒假专版】C版句型辨析 him about two hours the model plane yesterday. A.It took:to make B.It's;for making C.That took;make 答案：A解析：根据yesterday可知用一般过去时，且表示”花费时间做某事”，用It takes sb some time to do sth结构，take的过去式是took,选A。 综合训练 1.It's importantus keep healthy by exercising every day. A.for;to B.of;to C.for;for 2.The math problem is not easy out.Let's ask the teacher for help. A.work B.to work C.for work 3.took me half an hour finish reading the storybook yesterday. A.It;to B.That;for C.It;for 从It's+形容词+for sb to do sth/It's+形容词+of sb to do sth/主语+be+形容词+to do sth中 选择合适的结构完成句子 1.kind Mary to share her toys with her little sister. 2.This English songeasy sing.Many students like it. 3. necessary children to learn good manners from a young age. 3 初一下册北师大版 【寒假专版】C版句型辨析 1.To learn computer skills well is useful for teenagers.(用It's+形容词+for sb to do sth改写) 2.You are clever to solve this problem quickly..(用It's+形容词+of sb to do sth改写) 3.The heavy bag is difficult for the girl to carry.(用It's+形容词+for sb to do sth改写) I.单项选择 1.A2.B3.A Ⅱ.选短语填空/完成句子 1.It's;of 2.is;to 3.It's;for I句型转换 1.It's useful for teenagers to learn computer skills well. 2.It's clever of you to solve this problem quickly. 3.It's difficult for the girl to carry the heavy bag.