Starter Section 2 & Section 3 语法讲解及习题 2025-2026学年北师大版英语七年级上册

北师大版英语七上Starter Section 2 & Section 3 语法讲解及习题 一、语法核心内容 1. 一般疑问句（Section 2） 定义：用于询问“是”或“否”的问句，以be动词（am/is/are）开头，回答用“Yes/No”。 结构：Be动词 + 主语 + 表语 + ？ be动词搭配及问答形式 ： 主语 be动词 一般疑问句结构 肯定回答 否定回答 I am Am I ...? Yes, I am. No, I'm not. He/She/It/单数名词/this/that is Is ...? Yes, he/she/it is. No, he/she/it isn't. We/You/They/复数名词/these/those are Are ...? Yes, we/you/they are. No, we/you/they aren't. 例句 1. Is that an interesting book? → Yes, it is. / No, it isn't.（this/that作主语，回答用it替代） 2. Is he late? → Yes, he is. / No, he isn't. 3. Are you from the UK? → Yes, I am. / No, I'm not. 4. Are they in the classroom? → Yes, they are. / No, they aren't. 2. 肯定句与否定句（Section 3） 肯定句：陈述事实，结构为「主语 + be动词 + 表语」。 否定句：否定事实，在be动词后加not，结构为「主语 + be动词 + not + 表语」。 be动词搭配及句式变化 ： 主语 be动词 肯定句示例 否定句示例（完整/缩写） I am I am late. I am not late. / I'm not late. He/She/It/单数名词 is He is tired. He is not tired. / He isn't tired. We/You/They/复数名词 are We are in Class 1. We are not in Class 1. / We aren't in Class 1. 例句 ： 1. It is great.（It's great.） 2. The book isn't boring. 3. Nancy isn't late for school. 4. They are in the classroom. 二、练习题 基础巩固题 题型一：用be动词的正确形式填空 1. I ___________ from China. 2. He ___________ a student. 3. They ___________ my good friends. 4. She ___________ not late for school. 5. We ___________ in Class 1. 6. It ___________ a nice book. 7. You ___________ my teacher. 8. My name ___________ Tom. 9. The school ___________ great. 10. Jerry and Nancy ___________ classmates. 能力提升题 题型二：句型转换 1. I'm fine.（改为否定句） _________________________________________________________________ 2. He is from the UK.（改为一般疑问句并作肯定回答） ________________________________________________________________ _________________________________________________________________ 3. That is an interesting book.（改为一般疑问句并作否定回答） _________________________________________________________________ ________________________________________________________________ 4. They are in the classroom.（改为否定句） _________________________________________________________________ 5. She is my best friend.（改为一般疑问句并作否定回答） ________________________________________________________________ _________________________________________________________________ 6. We are from Canada.（改为一般疑问句） ________________________________________________________________ 7. It's boring.（改为否定句） _________________________________________________________________ 8. You are late.（改为一般疑问句） _________________________________________________________________ 9. The book is interesting.（改为否定句） _________________________________________________________________ 10. Jerry is tired.（改为否定句） _________________________________________________________________ 综合应用题 题型三：单项选择 1. —What's your name? —___________ name is Alice. A. I B. My C. Me 2. —Where are you from? —I ___________ from Australia. A. am B. is C. are 3. —Is he your friend? —No, he ___________. A. isn't B. is C. aren't 4. We ___________ not late for class. A. am B. is C. are 5. —Is that an interesting book? —Yes, ___________. A. it is B. it isn't C. they are 6. The book ___________ boring. It's great! A. isn't B. is C. aren't 7. —Are you from the USA? —Yes, ___________. A. I am B. you are C. they are 8. ___________ is my new school. I like it very much. A. He B. It C. She 9. —Are they classmates? —No, ___________. A. they are B. they aren't C. it isn't 10. Nancy ___________ late for school. A. am B. is C. are 题型四：根据对话判断正误 Dialogue： A: Hello, Linda. How are you? B: I'm fine, thanks. And you? A: I'm very well. How is your new school? B: It's great. I like it very much. Sam: Good morning, Ann. Is that an interesting book? Ann: Good morning, Sam. Yeah, it's great! 判断正(T)误(F)： 1. Linda is not fine. ( ) 2. Linda's new school is great. ( ) 3. A is very well. ( ) 4. The book is boring. ( ) 5. Sam thinks the book is great. ( ) 三、答案与解析 基础巩固题 - 题型一：用be动词的正确形式填空 1. am 2. is 3. are 4. is 5. are 6. is 7. are 8. is 9. is 10. are 解析：根据主语人称/数判断：I用am；单三/单数名词用is；复数/you用are。 能力提升题 - 题型二：句型转换 1. I'm not fine. 2. Is he from the UK?; Yes, he is. 3. Is that an interesting book?; No, it isn't. 4. They aren't in the classroom. 5. Is she your best friend?; No, she isn't. 6. Are you from Canada? 7. It isn't boring. 8. Are you late? 9. The book isn't interesting. 10. Jerry isn't tired. 解析：否定句在be动词后加not；一般疑问句将be动词提至句首；this/that作主语，回答用it替代。 综合应用题 - 题型三：单项选择 1. B 解析：名词name前用形容词性物主代词My 2. A 解析：主语I搭配be动词am 3. A 解析：Is he...?的否定回答为No, he isn't. 4. C 解析：主语We搭配be动词are 5. A 解析：Is that...?的肯定回答为Yes, it is. 6. A 解析：由It's great!可知书不无聊，单三主语用isn't 7. A 解析：Are you...?的肯定回答为Yes, I am. 8. B 解析：school为事物，用it指代 9. B 解析：Are they...?的否定回答为No, they aren't. 10. B 解析：Nancy为单三主语，搭配be动词is 综合应用题 - 题型四：根据对话判断正误 1. F 解析：Linda说I'm fine, thanks. 2. T 解析：Linda说It's great.（指代new school） 3. T 解析：A说I'm very well. 4. F 解析：对话中说it's great!（指代book），并非boring 5. T 解析：Sam询问书籍，得到it's great!的回答，可判断其认为书很好 ( 1 ) 学科网（北京）股份有限公司 $