小学be动词知识点(共5页).doc

精选优质文档-倾情为你奉上be动词的用法【学习目标】1学习并且掌握be动词am ,are ,is.2学会使用be动词。3. 掌握be动词的缩写形式及读音。任何一个句子一定由主语（Subject，简写成S）及动词（Verb，简写成V）构成。be动词不是动作，它通常与名词、形容词或其它词类一起表示主语的性质、状态、身份、特点等等。一、现在时be动词有三种，即：am, are,is。1. 如果主语是只用于第一人称I（我）时。I am 还可缩写成I'm。而am与 not 不缩写。如：I am a student. 我是一名学生。 I am ten years old.我今年十岁。 I am not a bad boy.2. 如果主语是you （你，你们）, they （他们，它们，她们）或名词复数 （两个以上的人或物）时，be动词必须用are。are与主语还可缩写。如： We are= We're， They are =They're, You are = You're。而are与 not可缩写成aren't.They arent twins(双胞胎). 如：Are you twelve? 你是十二岁吗？ Tom and Lily are good friends. 汤姆和莉莉是好朋友。They are at school. 他们在学校。3. 如果主语是单数名词(单个人名、地名、称呼)、不可数名词、或单数第三人称代词（he, she, it）时，be动词用is。is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。He isnt a teacher.他不是一名老师。如:My mother is a teacher. 我的妈妈是一名老师。 Jane is a good girl. Shenzhen is beautiful.深圳很美丽。 Be动词用法的口诀： 我用am，你用are，is用于 he(他),she(她),it(它)，单数名词、包括不可数名词用is，we（我们）,you（你们）,they（他们）及复数（两人以上）都用are。二、 句中含有be动词的陈述句变一般疑问句把be动词提到句首，be动词要变大写。注意：第一人称变第二人称，回答时与其他一般疑问句一样，也用yes或no表示。结构：Yes,主语+be动词.No,主语+be+ not。I am变为Are you my变为your.例：I am a student.Are you a student? 回答： Yes,I am. No,I am not.That is a watch.Is that a watch? 回答：Yes,it is.No,it isnt. He is a good boy.Is he a good boy?回答： Yes,he is.No,he isnt. There is a pen on the desk.Is there a pen on the desk.回答：Yes,there is .No,there isnt.Am I right? 回答：Yes, you are. No, you are not. (No, you arent.)三、 句中含有be动词的肯定陈述句变成否定句先找肯定陈述句中的be动词，在be动词后加not.This is an apple.This isnt an apple.There is a pen and two books on the desk.There isnt a pen and two books on the desk.四、 特殊疑问句：结构：疑问词+一般疑问句。认识疑问词What 什么 Where在哪里 How many多少。（后面加名词复数） Who 谁 When什么时候 What time 几点钟 Whose 谁的 How old 多少岁My name is Jane.What is your name?Its on the desk.Where is my pencil-box?四、be动词的缩写形式：1Im = I am. 否定句：I am not a worker.( am not没有缩写形式)2Its =It is. Hes = He is. Shes= She is. Sams a student. thats= that is Whos = Who is Wheres= Where is . Whats= What is. Sams = Sam is 3Youre= You are. Were= We are. Theyre= They are.4theres= there is +名词单数 therere=there are+名词复数5.否定：isnt= is not arent= are not （有be动词的否定句就在be动词后面直接加not） 6.dont= do not doesnt= does not hasnt= has not havent= have not cant= can not 【Practice in class】 课堂练习be动词用法练习题1.选择正确的be动词填空。（1）I _ a student. （2）We _ friends.（3）He _ a good boy. （4）She _ my sister.（5）They _ playing football. （6）You _ my friend.(7)_she from Jinan? No, she _. (8) _you friends? No, we _.2.be的练习：1）I _ a boy. _ you a boy? No, I _ not. 2）The girl_ Kangkang's sister. 3）_ your brother in the classroom? 4）Who _ I? 5）The books _ on the desk.6）My sister's name _Jane. 7）There _ a girl in the room.8）There _ some apples on the tree.9）There _ a boy, two girls, three men and ten women in the park.10)Here_ two apples and one book.3.11) _your friends in New York? 12) What _her name?13) These _ buses. 14) Those _oranges.15) Where _ her mother? 16) How old _your teacher?17) What class _ you in? 18)This _ my brother.19)That _ a pencil. 20)Mike and I_ students.4.21)_ there an apple on the table? Yes, there _.22)There_many books in the study. 23)There_some ice cream in the fridge.24)There_a pear and some cakes on the table. 25)The children_ playing in the bedroom.26)The rabbits_ eating grass. 27)What_ your favorite subject?28)The girl_ drawing. 29) "I"_ a letter（字母.）30. I _ a boy. _ you a boy? No, I _ not. 5.31. The girl_ Jack's sister. 32. The dog _ tall and fat. 33. The man with big eyes _ a teacher.34. _ your brother in the classroom? 35. Where _ your mother? She _ at home. 36. How _ your father? 37. Mike and Liu Tao _ at school. 38. Whose dress _ this? 39. Whose socks _ they? 40. That _ my red skirt. 6.41. Who _ I? 42.The socks _ on the desk. 43. Here _ a book for you. 44. Here _ some sweaters for you. 45. The black shoes _ for Su Yang. 46. This pair of shoes _ for Yang Ling. 47. The two cups of milk _ for me. 48. Some tea _ in the glass. 49. Gao shan's shirt _ over there. 50. My sister's name _Nancy. 7.51.This _ not Wang Fang's pencil. _ David and Helen from England? 52. There _ a girl in the room. 53. There _ some apples on the tree. _ there any kites in the classroom? 54. _ there any apple juice in the bottle? 55. There _ some bread on the plate. 56. There _ a boy, two girls, three men and ten women in the park. 57. You, he and I _ from China.三. 仿照例句改写下列句子。例句：She is in Class One, Grade Two.否定句： She is not in Class One, Grade Two. 一般疑问句： Is she in Class One, Grade Two?回答：Yes, she is. (No, she isnt)1. Bob is on the football team.否定句： 一般疑问句： 回答：2. They are in the teachers office.否定句： 一般疑问句： 回答：3. It is sunny today.否定句：一般疑问句： 回答：4. There is some water in the bottle.否定句： 一般疑问句： 回答：5. There is a piano in the room.否定句：一般疑问句：回答：6. There are many trees in the school.否定句：一般疑问句： 回答：7. There are four bottles of milk on the table.否定句：一般疑问句：回答：8. We are interested in painting.否定句：一般疑问句： 回答：专心-专注-专业