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be动词的用法 am is are be动词的形式 be动词包括“am”, “is”, “are”三种形式,表达“是”的意思。 1. 第一人称单数(I)配合am来用。 句型解析析:I am+… I am Snoopy. I am ten years old. I am a student. I am a boy. 2.第三人称单数(He 或 She 或 It)配合is使用。 句型解析:She/He/It is +… She is a good girl. He is so cute. It is my pet. 3.第二人称(You)配合are使用。 句型解析: You are+… You are my good friend. You are a good person. You are beautiful. 4. 复数人称 (we /you/they)配合are使用。 句型解析:We /You/They are +… We are in Class 5,Grade 7. You are friends. They are good students. I am a boy. She is a good girl. He is so clever. It is my pet. You are a good person. We are in the same class. You are friends. They are good students. be动词的陈述句 be动词的否定句 1.He is a teacher. He is not a teacher. 2.They are boys. They are not boys. 变否定,be动词后加not。 Have a try: I am a good student. I am not a good student. be动词的疑问句 1. He is a teacher. be动词提句首 Is he a teacher? 2. They are students. be动词提句首 Are they students? Have a try: I am a good student. Am I a good student? be动词的缩写 I am= I’m You are=You’re He is= He’s She is= We are= It is= They are= We’re It’s She’s They’re 否定形式的缩写: is not= isn’t are not= aren’t am not没有缩写形式! 练一练: 1. I ?????????a girl. am?? B. is? C. are 2. He ?????????a boy. A. am?? B. is? C. are 3. We? ?????????boys. A. am?? B. is? C. are 4. My father? ?????????a doctor. A. am?? B. is? C. are 5. Tom and Jack ???????????boys. A. am? B. is? C. are 6. This? ???????????a desk. A. am??? B. is? C. are A B C B C B 7. They? ???????????late. A. am??? B. is? C. are 8. You ???????????clever. ?A. am? B. is? C. are 9. The cloud ????????????white. A. am? B. is? C. are 10. I? ????????????a student.? You? ????????a teacher. A . am? is? B. am? are?? C. is?? are 11. We ?????????friends. ?A. am? B. is? C. are 12. He ???????????my father.? She ???????????my mother .?They? ???????????both doctors . ? A. is, is, are?? B. am, is, are?? C. is, is, am C C B B C A Be的用法口诀 ? ?我(I)是am ,你(you)是are; is用于他(he),她(she),它(i
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