Be动词（课件）-2025-2026学年外研版（三起）（2024）英语三年级上册

该小学英语单元复习课件系统梳理了be动词的三种形式（am/is/are）及其在肯定句、否定句和一般疑问句中的用法，通过表格归纳、句型转换练习和缩写规则讲解，构建了从认知到运用的知识网络，清晰呈现了人称代词与be动词的对应关系，以及句子结构变化的逻辑路径。 其亮点在于融合语言能力与思维品质培养，设计“一提二变三问号”口诀强化句型转换策略，如将“I am a student”转化为“Are you a student?”并配套“Yes, I am.”等回答训练，既夯实基础又提升语用意识。同时设置分层练习，如基础题巩固语法结构，拓展题引导学生自主创设情境对话，满足不同学习水平需求，有效促进知识内化，助力教师精准施教，提升课堂效率。

be 动词 3种形式： am / is / are 中文意思： “是” be动词用法 我（ ） 用 am 你 ( ) 用 are is 跟着他( ), 她( ),它( ) 单数用 ____ 复数要用____ I you he she it is are 人称代词主格 Be动词 I 我 am we 我们 he 他 she 她 it 它 is you 你们 they 他们 are 1. I am Chinese. 2. She is a student. 3. He is from England. 4. We are in Class One Grade Seven. 肯定句 否定句 在 be 动词后面加 “not” 先找be 动词（is/am/are） 在be动词后加not. I am Miss Zhou. not (没有缩写形式) I'm I'm not I'm Lingling. I'm a student. I'm ten years old. I'm good. Nice to meet you. I'm not Lingling. I'm not a student. I'm not ten years old. I'm not good. Nice to meet you, too. 先找Be 动词(is/am/are)， 在be动词后加not. You are Mary. not You aren't Mary. are not aren't 肯定句变否定句，先找Be动词，在Be动词后加not. He is Mike. She is Jenny. It is a pen. not not He isn’t Mike. She isn’t Jenny. It isn’t a pen. not is not isn't Exercises 肯定句改成否定句;否定句改成肯定句 They are my teachers. He’s my friend. It isn’t a pencil. I’m a boy. You’re not nine years old. 6. She is a girl. aren’t isn't is am not aren't isn't 一般疑问句 能用Yes / No 回答的疑问句叫一般疑问句。 陈述句变一般疑问句 一提：be 动词(is, am, are) 提到句首 二变：大小写，对应的单词变化 三问号：句号变为问号 You are Chinese. 一提：be动词到句首 二变：大小写 三问号：句号改成问号 are You Chinese. Are you Chinese. Are you Chinese? Are you Chinese? He is Mike. 一提：be动词到句首 二变：大小写 三问号：句号改成问号 is he Mike. Is he Mike. Is he Mike? Is he Mike? Mike is a student. 一提 二变 三问号 is Mike a student. Is Mike a student. Is Mike a student? Is Mike a student? Lingling is a girl. 一提 二变 三问号 Is Lingling a girl? I am a new student here. Are you a new student here? 看见 I am 变成 Are you Yes, I am. No, I'm not. I am an English teacher. 看见 I am 变成 Are you Are you an English teacher? Yes, I am. No, I'm not. She is a girl. Is she a girl ? 她是女孩吗？ Yes, she is. No, she isn't. 一提 二变 三问号 He is a teacher. Is he a teacher? Yes, he is. No, he isn't. 一提 二变 三问号 Tom is a boy. Is Tom a boy? Yes, he is. No, he isn't. 一提 二变 三问号 Lingling is a girl. Is Lingling a girl? Yes, she is. No, she isn't. 一提 二变 三问号 It is a book. Is it a book? Yes, it is. No, it isn't. 一提 二变 三问号 改为一般疑问句： 1.Mary is an English girl. 2.His name is Li Daming. 3.Mr Chen is from China. 4.Daming and Lingling are good friends. Is Mary an English girl? Is his name Li Daming? Is Mr Chen from China? Are Daming and Lingling good friends? 变一般疑问句，往前提， 遇到I am 改 Are you 回答：Yes, I am./ No, I am not. Yes,she / he /it is. No, she / he / it isn't. 先用be的适当形式填空然后按照要求变换句型 I ____ a teacher. 一般疑问句：_________________ 肯定回答：___________________ 否定回答：___________________ am Yes, I am. No, I'm not. Are you a teacher? You _____ a student . 一般疑问句：________________ 肯定回答：___________________ 否定回答：___________________ are Yes, I am. No, I'm not. Are you a student? He ____ a doctor. 一般疑问句：_________________ 肯定回答：___________________ 否定回答：__________________ is No, he isn't Yes, he is. Is he a doctor? ______ she a student? 陈述句：_____________________ 肯定回答：___________________ 否定回答：__________________ Is Yes, she is. No, she isn't. She is a student. ______ you good? 陈述句：____________________ 肯定回答：__________________ 否定回答：___________________ Are No, we aren't. Yes, we are. We are good. They _____ workers. 一般疑问句：_________________ 肯定回答：__________________ 否定回答：__________________ are Yes, they are. No, they aren't. Are they workers? ______ (它是) an apple. 一般疑问句：_________________ 肯定回答：__________________ 否定回答：___________________ is It Yes, it is. No, it isn't. Is it an apple? It_____ a big map. 一般疑问句：_________________ 肯定回答：___________________ 否定回答：___________________ is Yes, it is. No, it isn't. Is it a big map? 1. They are English. Are they English? Yes, they are. 2. Tony is thirteen years old. be动词后面+not Tony isn’t thirteen years old. 3. John is from Weifang. 约翰来自潍坊 Where is John from? 4. Are you from China? Yes, I am. 5. Is his name Wang Ping? No, it isn’t. 1. It is the pen. 否定句： 一般疑问句： 回答： 2. She’s Miss Li. 否定句： 一般疑问句： 回答： 3. I'm in Class One, Grade Seven. 否定句： 一般疑问句： 回答： 4. Mr Zhang is an English teacher. 1. It is the pen. 否定句： 一般疑问句： It isn't the pen. Is it the pen? 回答： Yes, it is. No, it isn't. 2. She’s Miss Li. 否定句： 一般疑问句： She isn’t Miss Li. Is she Miss Li? 回答： Yes, she is. No, she isn't. 3. I'm in Class One, Grade Seven. 否定句： I am not in Class One Grade Seven. 一般疑问句： Are you in Class One, Grade Seven? 回答： Yes, I am. No, I am not. 4. Mr Zhang is an English teacher. 否定句： Mr Zhang isn’t an English teacher. 一般疑问句： Is Mr Zhang an English teacher? 回答： Yes, he is. No, he isn't. 我是一个学生 ____ ____ a student. ______ a student. I am I'm I am = I'm 他十三岁 ____ ____ thirteen years old. ______ thirteen years old. He is He's he is = he's 天气暖和。 ____ ____ warm. ______ warm. It is It's it is = it's 我们是好朋友。 ____ ____ good friends. ______ good friends. We are We're we are = we're 你们是老师。 ____ ____ teachers. ________ teachers. You are You're you are = you're 他们在Ms Green 班里。 ______ ____ in Ms Green's class. ________ in Ms Green's class. They are They're they are = they're 他不是一名学生。 He ___ ____a student. He _____ a student. isn't = is not is not isn't 我们不是老师。 We ___ ____ teachers. We _______ teachers. aren't = are not are not aren't 否定形式的缩写 is not = isn't are not = aren't am not 没有缩写形式 $