be動詞的肯定句、一般現(xiàn)在時態(tài)-

1、Be動詞的用法與練習（1）be動詞的一般現(xiàn)在時有三種形式，即： am, is, are （翻譯為 是“）be動詞用法歌：我用am ,你用are , is連接他，她，它。單數(shù)is,復數(shù)are。變疑問，往前提，句末問號莫丟棄。變否定，更容易，be后not莫忘記。疑問否定任你變，句首大寫莫遲疑。1 .什么時候用am：如果主語是第一人稱I （我）時，be動詞用am。如：I am a student.我是一名學生。I am還可縮寫成I'm。如：I'm David.我是大衛(wèi)。 am 與 not 不能縮寫。如： I am not a bad boy.2 .什么時候用are： 如果主語是you

2、 （你，你們），they （他們，它們，她們）或名詞復數(shù)（兩個以上的人或物）時， be動詞必須用are。如：Are you twelve? 你是十二歲嗎？Tom and Lily are good friends.湯姆和莉莉是好朋友。They are at school. 他們在學校。are與主語還可縮寫。如：We are= We're, They are =They're, You are = You're。are與not可縮寫成aren't。如：They aren't students.他們不是學生。3 .什么時候用is： 如果主語是單數(shù)名詞、不可數(shù)

3、名詞或單數(shù)第三人稱代詞（ he, she, it）時，be動詞用is。 如:My mother is a teacher.我的媽媽是一名老師。He is a student.他是一名學生。is也可與主語縮寫，如：He is = He's, My mother is = My mother's 等。但是 This is不可縮寫。 而is與not可縮寫成isn't。如：This isn't a book.這不是一本書。練習：一、在下面的短文中填上恰當be動詞。I a girl. My name Mary. I in Class 2, Grade 7. I 12 ye

4、ars old. Here myfamily photo. Look! These my parents and those my grandparents. This boy my brother.He 15 years old now. That my cat, Mimi. It very lovely.二、在下面題目中填上恰當?shù)腂e動詞。1. I from Australia.2. She a student.3. Jane and Tom my friends.4. My parents very busy every day.5. I at school.6. He _ at sch

5、ool.7. We _ students.8. They _from China.9. Yang Ling eleven years old.10. Where your friends?11. I a student.12. You a doctor.13. Ita car.14. They cars15. These buses.16. Those oranges.17. Where her mother?18. How old your teacher?19. What class you in?20. My school big.21. The girlJack s sister.22

6、. The dog tall and fat.23. Mike and Liu Tao at school.24. Here a letter for you.25. Here some sweaters for you.三、在下面對話中填上恰當?shù)腂e 動詞。1. What your name?My name Tom.2. What his name?His name Kevin.3. What your mom s name?Her name Lula.4. This Jim, my teacher.That _my sister.5. How _ you?I _ fine.6. How _

7、 he?He _ OK.7. How _ Nancy?She _fine, too.8. Where _ you from?I _ from Beijing.9. Where _ he from?He _ from Canada.10. Where _ they from?They _from England.11. Where _ your mom from?She _from Shishi.12. Where _ his teacher from?He _ from Japan.13. Where _ Lucy and Lily from?They _from Cuba.14. How o

8、ldyou?I _ twelve years old.15. How oldhe?He _ eleven years old.16. How oldshe?She _thirteen years old.17. How oldthey?They _fourteen years old.18. How oldKate and Tom?They _fifteen years old.19. What class you in?I _ in ClassThree, Grade Seven.20. What class LiMing in?He _ in Class Four, Grade Eight

9、.21. What gradeSally in?She _ in Grade Nine.22. Who _ that?That _ Nancy.23. What _ this in English?It _ an apple.24. What _ that in English?It _ a map.Be動詞的用法與練習（2）變形1 .句中含有be動詞的肯定陳述句 變否定句。先找肯定陳述句中的 be動詞，在be動詞后加not.如:It is a book.變?yōu)?It is not a book.2 .句中含有be動詞的陳述句 變一般疑問句。把be動詞提到句首，并且記得將它變成大寫。注意第一人稱

10、變第二人稱?；卮饡r用yes或no表示，結構：Yes,主語+be動詞，No,主語+be動詞+not。如:It is a book.變?yōu)椋?Is it a book?-Yes, it is. / - No, it is not.練習：改寫句子1. I am a teacher.否定句：一般疑問句：肯定回答：否定回答：2. They are new students.否定句：一般疑問句：肯定回答：否定回答：3. He is a good boy at home.否定句：一般疑問句： 肯定回答：否定回答：4. We are students.否定句：一般疑問句：肯定回答：否定回答：5. Bob is

11、in Class One, Grade Six.否定句：一般疑問句：肯定回答： 否定回答：6. She is form Jinan.否定句：一般疑問句：肯定回答： 否定回答：7. I am a good student at school.否定句：一般疑問句：肯定回答： 否定回答：8. They are in the teachers office.否定句：一般疑問句：肯定回答： 否定回答：9. His father is a postman.否定句：一般疑問句：肯定回答： 否定回答：10. The man is a doctor.否定句：一般疑問句：肯定回答： 否定回答：11. She is a singer.否定句：一般疑問句：肯定回答： 否定回答：12. He is in Class five.否定句：般疑問句:肯定回答： 否定回答：13. I am a smart boy.否定句：一般疑問句：肯定回答： 否定回答：14. There is a dog over there.否定句：一般疑問句：肯定回答： 否定回答：15. There are a lot of