主语 be 描述性形容词-2025-2026学年七年级英语上册句型全解（北师大版）

初一上册北师大版 【寒假专版】 A版句型全解 寒假专版 【A版句型全解】主语+be+描述性形容词 初中·北师大版·初一上册 基本结构 句型结构：主语+be+描述性形容词 “主语”通常为人或事物，“be”动词根据主语的人称和数变化(am/is/are)，“描述性形容 词”用于修饰主语的特征或状态 例句展示： He is happy today..(他今天很高兴) The flowers are beautiful.(这些花很漂亮) 句型精讲（核心考法） 考法1：be动词的正确形式选择 判断规则+例句对比 规则：根据主语的人称和数确定be动词形式(I→an;you/we/they→are;he/she/it/单数名 词→is) 例句l:She is happy today..(主语she为第三人称单数，用is) 例句2：They are clever students..(主语they为复数，用are) 例句3：I am tired after running.(主语I用am) 真题再现(2024北师大版初一上册期中测试) My brother tall and strong. A.am B.is C.are D.be 初一上册北师大版 【寒假专版】A版句型全解 答案：B 解析：主语my brother是第三人称单数，be动词用is 考法2：形容词的选择与搭配 判断规则+例句对比 规则：根据语境选择符合逻辑的描述性形容词，形容词需说明主语的特征或状态（如外貌、 性格、感受等) 例句l:The story is interesting.(形容事物“有趣的”，用interesting) 例句2：She feels sad today..(形容人的感受“难过的”，用sad) 例句3：The red apple is sweet.（形容物品味道“甜的”，用sweet) 真题再现(2023北师大版初一上册期末测试) Winter in Beijing is We often make snowmen A.warm B.hot C.cold D.cool 答案：C 解析：根据“make snowmen(堆雪人)”可知冬天北京是“寒冷的”，用cold 考法3：对形容词部分提问 提问规则+例句提问 规则：对句中描述性形容词提问时，用特殊疑问词How+be动词+主语？ 例句l:原句The weather is sunny..(对suny提问)问句：How is the weather? 例句2：原句They are excited..(对excited提间)间句：How are they? 例句3：原句My cat is cute.(对cute提间)问句：How is your cat'? 真题再现(2024北师大版初一上册单元测试) The flowers are beautiful.(对划线部分提间) the flowers? 2 初一上册北师大版 【寒假专版】A版句型全解 答案：How are 考法4：肯定句与否定句的转换 转换规则+例句转换 规则：在be动词后加not构成否定句(is not一isn't:are not→aren't:am not无缩写) 例句1：原句He is late..否定句：He isn't late. 例句2：原句We are busy.否定句：We aren't busy. 例句3：原句I am hungry..否定句：I am not hungry: 真题再现(2023北师大版初一上册同步练习) This book is interesting.(改为否定句) This book interesting. 答案：isnot 句型综合训练 训练1：单项选择（考察be动词形式及形容词选择） 1.My parents teachers in a local middle school. A.am B.is C.are D.be 2.The story about space exploration very interesting. A.am B.is C.are D.be 3.These flowers beautiful and colorful in spring. A.am B.is C.are D.be 3 初一上册北师大版 【寒假专版】 A版句型全解 4.The weather in summer usually hot in this city. A.am B.is C.are D.be 5.I happy to see my old friends again. A.am B.is C.are D.be 6.Hisnew bike expensive but very cool. A.am B.is C.are D.be 7.The children excited about the upcoming holiday. A.am B.is C.are D.be 8.This kind of music popular among young people. A.am B.is C.are D.be 训练2：同义句转换（考察否定句转换及提问） l.The film is interesting.(改为否定句) →The film interesting. 2.They are late for the meeting.(改为否定句) →They late for the meeting 3.The weather is sunny today.(对划线部分提问) the weather today? 4.Her brother is tall and strong.(对划线部分提间) 4 初一上册北师大版 【寒假专版】A版句型全解 her brother? 5.We are ready for the exam.(改为否定句) →We ready for the exam. 6.The books on the shelf are new.(对划线部分提问) → the books on the shelf? 7.My mother is kind to everyone..(改为否定句) →My mother_ kind to everyone. 8.The students are busy with their homework.(对划线部分提问) the students? 训练3：完成句子（考察be动词及形容词运用） 1.The little girl (很可爱)and everyone likes her. 2.These apples (很甜)because they are fresh. 3.My grandparents (很健康)because they exercise every day.. 4.The math problem (很难)for me to solve. 5.Our classroom (很干净)and tidy every day. 6.The story he told us (很有趣)and we all laughed. 7. The old man (很孤)after his wife passed away. 8.Your suggestions (很有帮助)for our project. 9.The water in the lake (很清澈on sunny days. 10.Those children (很兴奋)about going to the zoo. 训练4：写作高级句式（考察句型翻译） 1.春天的公园 (很美丽)with many flowers. 2.我的妹妹 (很聪明)and learns new things quickly.. 3.这部电影 (很感人)that I cried twice.. 初一上册北师大版 【寒假专版】A版句型全解 4.这些问题 (很简单)for the students to answer.. 5.夜晚的星空 (很神奇)and full of stars. 参考答案 I训练1：单项选择 1.C2.B3.C4.B5.A6.B7.C8.B IⅡ.训练2：同义句转换 1.is not 2.are not 3.How is 4.How is 5.are not 6.How are 7.isnot 8.How are L.训练3：完成句子 1.is cute 2.are sweet 3.are healthy 4.is difficult 5.is clean 6.is interesting 7.is lonely 8.are helpful 9.is clear 10.are excited V.训练4：写作高级句式 1.is beautiful 2.is clever 3.is moving 4.are simple 5.is magical 6