Unit1单元知识过关第3讲语法讲练2025-2026学年译林版（2024）七年级英语上册

该初中英语单元复习讲义通过模块分类系统梳理第一单元核心语法，以表格形式呈现be动词用法、实义动词主谓一致等要点，清晰标注主语类型与动词搭配及典型例句，构建“基础用法-否定句-疑问句”的逻辑脉络，突出语法知识的内在联系与重难点分布。 讲义亮点在于分层练习设计，基础巩固含单项选择、词形填空等夯实语法基础，能力提升通过短文填空和句子改写综合运用知识，培养语言表达与逻辑思维能力。答案详尽且题型覆盖全面，助力学生自主纠错提升学习能力，教师可据此实施精准分层教学，高效推进单元复习。

7A第一单元知识过关第3讲--语法精讲精炼 一、语法复习清单（按模块分类） （一）be 动词的用法（核心语法） 1. 基本用法：描述身份、特征、位置或状态 根据主语人称 / 数量选择 am/is/are，具体搭配如下： 主语类型 对应be动词 典型例句 第一人称单数（I） am I am a student of Grade 7. / I am 13 years old. 第三人称单数（he/she/it/ 单数名词） is He is tall and slim. / This book is interesting. / My favourite subject is Maths. 第二人称（you）/ 复数（we/they/ 复数名词） are You are friendly. / We are in the same class. / These flowers are beautiful. 2. 否定句：在 be 动词后加 “not” • I am not good at swimming. • He is not (isn’t) shy. • They are not (aren’t) from the same school. 3. 一般疑问句及回答：be 动词提前至句首 句型 肯定回答 否定回答 例句 Am I...? Yes, you are. No, you aren’t. —Am I in Class 3? —Yes, you are. / No, you aren’t. Is he/she/it/ 单数名词...? Yes, he/she/it is. No, he/she/it isn’t. —Is she interested in music? —Yes, she is. / No, she isn’t. Are you/we/they/ 复数名词...? Yes, we/they are. No, we/they aren’t. —Are they your classmates? —Yes, they are. / No, they aren’t. （二）实义动词一般现在时（重点：喜好表达与主谓一致） 1. 核心动词：like/enjoy（表达喜好，后接动名词 doing） • 基本结构：主语 + like/enjoy + doing sth. 例句：I like reading storybooks. / She enjoys playing the piano. 2. 主谓一致：第三人称单数主语（he/she/it/ 单数名词）后，动词加 “s/es” 主语类型 动词形式 例句 第一 / 二人称 / 复数主语 动词原形 We like sports. / You enjoy drawing. 第三人称单数主语 动词加 “s/es” He likes basketball. / My sister enjoys singing. / This cat likes fish. （三）名词单复数（基础语法） 1. 规则变化：多数名词变复数加 “s” • 例：classmate → classmates；hobby → hobbies（以 “y” 结尾，改 “y” 为 “i” 加 “es”）；book → books • 搭配例句：I have many classmates. / She has two hobbies—reading and dancing. 2. 常用单数 / 复数名词辨析 • 不可数名词（无复数）：hair（头发）、energy（精力） 例：Her hair is long. / He is full of energy. • 常用复数名词：glasses（眼镜）、sports（运动） 例：He wears glasses. / They like sports. （四）形容词的用法（描述特征） 1. 描述外貌 / 性格：直接作表语或定语 • 作表语（跟在 be 动词后）：She is friendly. / He is helpful. • 作定语（修饰名词）：a polite girl / a clever boy 2. 并列与补充：用 “and” 连接并列形容词，“with” 短语补充细节 • 并列：She is tall and slim. / The classroom is bright and clean. • 补充：a girl with long hair / a boy with a round face 二、配套练习 （一）基础巩固 1. 单项选择（共 10 小题，每小题 1 分，满分 10 分） 从 A、B、C、D 中选出最佳选项。 1. My brother ______ 12 years old. He ______ in Grade 7. A. is; am B. is; is C. are; is D. am; are 2. —______ your parents teachers? —No, they ______. They are doctors. A. Are; aren’t B. Is; isn’t C. Are; are D. Is; are 3. Tom ______ playing football. He often plays it after school. A. like B. likes C. enjoy D. enjoying 4. There are 45 ______ in our class. All of them are friendly. A. classmate B. classmate’s C. classmates D. classmates’ 5. —What ______ your favourite subject? —Maths. It’s interesting. A. am B. is C. are D. be 6. She ______ good at drawing. She ______ draw beautiful animals. A. is; can B. are; can C. is; can’t D. are; can’t 7. My sister ______ glasses. She looks cute with them. A. wear B. wears C. is wear D. is wears 8. —______ is your English teacher? —She is 30 years old. A. How old B. How C. What D. Where 9. They ______ interested in science. They like Maths better. A. am not B. isn’t C. aren’t D. don’t 10. This is a ______ girl. She is polite ______ helpful. A. nice; and B. nice; or C. bad; and D. bad; or 2. 用所给词的适当形式填空（共 5 小题，每小题 1 分，满分 5 分） 1. I ______ (be) Li Hua. I ______ (be) in Class 2, Grade 7. 2. His hobby is reading. He ______ (like) ______ (read) storybooks every evening. 3. There are many ______ (classmate) in our class. We often help each other. 4. My mother ______ (not be) a teacher. She ______ (be) a doctor. 5. Tom and his friends ______ (enjoy) ______ (play) basketball at the weekend. 3. 句型转换（共 5 小题，每小题 2 分，满分 10 分） 1. He is in Class 1, Grade 7.（改为一般疑问句） ______ ______ in Class 1, Grade 7? 2. They are good at playing the piano.（改为否定句） They ______ ______ good at playing the piano. 3. I am 13 years old.（对划线部分提问） ______ ______ are you? 4. Her favourite subject is Music.（对划线部分提问） ______ ______ favourite subject? 5. The boy is tall. He has short hair.（用 with 合并为一句） The boy is tall ______ ______ ______. （二）能力提升 1. 短文填空（共 10 空，每空 1 分，满分 10 分） 用括号内单词的适当形式或 be 动词填空，每空一词。Hello, everyone! Let me introduce myself. My name ______ (be) Lucy. I ______ (be) 12 years old. I ______ (be) a new student at Sunshine Middle School. I ______ (be) in Class 5, Grade 7. My deskmate is Lily. She ______ (be) tall ______ slim. She ______ (wear) glasses and ______ (like) ______ (read) English books. We ______ (be) good friends. After school, we often ______ (enjoy) ______ (do) sport together. Our favourite sport is badminton. We think it’s fun. At the weekend, I usually visit my grandparents. They ______ (be) very kind to me. I ______ (be) happy to spend time with them. 2. 句子改写（共 5 小题，每小题 2 分，满分 10 分） 1. She likes swimming. She likes dancing too.（用 and 合并） She likes swimming ______ ______. 2. He is a boy. He is clever. He has big eyes.（用 and/with 合并） He is a ______ boy ______ ______ ______. 3. They are in the same class.（改为一般疑问句并作肯定回答） —______ ______ in the same class? —______, ______ ______. 4. I am interested in art.（用 like 改写同义句） I ______ ______ art. 5. Tom is not good at Maths.（改为肯定句） Tom ______ ______ ______ Maths. 三、练习答案 （一）基础巩固 1. 单项选择：1.B 2.A 3.B 4.C 5.B 6.A 7.B 8.A 9.C 10.A 2. 词形填空：1.am; am 2.likes; reading 3.classmates 4.isn’t; is 5.enjoy; playing 3. 句型转换：1.Is he 2.are not 3.How old 4.What’s her 5.with short hair （二）能力提升 1. 短文填空：is; am; am; am; is; and; wears; likes; reading; are; enjoy; doing; are; am 2. 句子改写：1.and dancing 2.clever; with big eyes 3.Are they; Yes; they are 4.like; doing 5.is good at 学科网（北京）股份有限公司 $