小学be动词讲义(教师整理精华版).doc

Be 动词专题讲义动词专题讲义一．概念一．概念Be 动词有三个：动词有三个：am，，is，，are我用我用 am，你用，你用 are，， is 连着他，她，它连着他，她，它, 单数名词用单数名词用 is，复数名词全用，复数名词全用are二．用法剖析二．用法剖析 1. 如果主语是第一人称如果主语是第一人称 I（我）时，（我）时，be 动词用动词用 amI am 还可缩写成 I'm如： I'm David. 我是大卫2.如果主语是第三人称代词、单数名词或不可数名词时，如果主语是第三人称代词、单数名词或不可数名词时，be 动词用动词用 is 如: He is a student. 他是一名学生 My mother is a teacher. 我的妈妈是一名老师is 也可与主语缩写也可与主语缩写 如: He is = He's, My mother is = My mother's 等 但是 This is 不可缩写而 is 与 not 可缩写成 isn't 如:This isn't a book. 这不是一本书3. 如果主语是第二人称如果主语是第二人称 you ，，be 动词必须用动词必须用 are。

如果主语是名词复数如果主语是名词复数 （两个以上的人或物）时，（两个以上的人或物）时，be 动词必须用动词必须用 are 如： Tom and Lily are good friends. 汤姆和莉莉是好朋友They are at school. 他们在学校 are 与主语还可缩写如： We are= We're 而 are 与 not 可缩写成 aren't如：They aren't students. 他们不是学生单数名词用单数名词用 is，复数名词全用，复数名词全用 are 如：The book is over there.(一本书） The books are over there.（多本书）疑问句变化口诀疑问句变化口诀: 变疑问，变疑问，be 前提，句末问号莫丢弃前提，句末问号莫丢弃 变否定，更容易，变否定，更容易，be 后后 not 莫忘记 疑问否定任你变，句首大写莫迟疑疑问否定任你变，句首大写莫迟疑变疑问，往前提，句末问号莫丢弃变疑问，往前提，句末问号莫丢弃陈述句中谓语为 is,are,am 时，变疑问句只将其提前）如：It is a book.变为：Is it a book?变否定，更容易，变否定，更容易， be 后后 not 莫忘记。

莫忘记如：It is a book.变为: It is not a book.(否定句）疑问否定任你变，句首大写莫迟疑疑问否定任你变，句首大写莫迟疑如：It is a book.变为：Is not it a book?(疑问否定句）巩固练习巩固练习1、Helen____ a student 2、This _____my book. 3、My father______a cook. 4、Jack’s friend____in the study. 5、Your mother_____swimming. 6、Your sister______in the study. 7、Those jackets_______my sister’s. 8、That______her dog. 9、The cat_______on the desk. 10、The books_______under the table.11、His sisters______running. 12、This train____for Shanghai. 13、The dress______too big. 14、This book______for you. 15、The waitress______my mother. 16、Those grapes________green. 17、The children________singing. 18、Helen and I______in the classroom. 19、I _____a doctor. 20、______you a nurse?Yes, I am.21、There a lot of sweets in the box. 22、There some milk in the glass. 23、There some people under the the big tree.2 24、There a picture and a map on the w 25、There a box of rubbers near the books. 26、There lots of flowers in our garden last year. 27、There a tin of chicken behind the fridge yesterday. 28、There four cups of coffee on the table.29. I ______ a boy._____you a boy? No, I ____ not. 30. The girl______ Jack's sister. 31. The dog _______ tall and fat. 32 The man with big eyes _______ a teacher. 33 ______ your brother in the classroom? 34. Where _____ your mother? She ______ at home. 35. How_______ your father? 36 Mike and Liu Tao ______ at school. 37. Whose dress ______ this? 38. Whose socks ______they? 39. That ______ my red skirt. 40. Who ______ I? 41.The jeans ______ on the desk. 42.Here ______ a scarf for you. 43. Here ______ some sweaters for you. 44. The black gloves ______for Su Yang.。