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Be动词的用法总结及专项练习 Be动词的用法口诀 : be动词am\is\are,我(I)用am，你(you)用are，is连着他(he)，她(she)，它(it)；单数名词用is，复数名词全用are。我们（we）你们（you）和他们（they）都用are;过去式am\is变was,are变 were;变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。一、Be动词与人称代词的搭配 1、基本形式：am、are、is （1） am 第一人称I+am (注意：“I”无论何时都要大写，不管位于句首还是句中) 例：I am a beautiful girl. I am twenty. （2） are 第二人称you+are; 一人称复数we+are；三人称复数they+are 其他复数名词+are (注意：第二人称单复数同形，都为you) 例：You are my good friend. We are in the same class. They are on the road. The books are on the desk. (3 is 第三人称he(男) +is ; she(女)+is; it(不是人)+is;其他单数名词+is 例：He\She is a good student. It is a white cat. A dog is on that street. 2、肯定、否定、疑问（等于号后是简写）肯定否定——be动词后加not 一般疑问——be动词移到主语前一般疑问否定一般疑问回答肯定和否定 I am… =I’m …. I am not…=I’m not ... Am I…? Am not I…? Yes,I’m. No,I’m not. You are…= you’re… You are not…=You aren’t… Are you…? Are not you. ..? =Aren’t you…? Yes,you are. No,you are not. She\He\It is…= She\He\It is not… =She\He\It isn’t… Is she\he\it…? Is not she\he\it…? =Isn’t she\he\it…? Yes,she\he\It is. No,she\he\It is not. We are=We’re We are not…=We aren’t… Are we…? Are not we…? =Aren’t we…? Yes,we are. No,we are not. They are=They’re They are not…=They aren’t Are they…? Are not they…? =Aren’t they…? Yes,they are. No,they are not. 例：I am(not) from London. My eyes are(not) small. My hair is(not) long. Am I a Chniese? 回答：肯定：Yes, you are. 否定： No, you aren’t. Is the cat fat? 回答：肯定：Yes, it is. 否定： No, it isn’t. 注意：在一般疑问回答中，肯定回答除I’m不可简写,否定回答均可简写。另：特殊疑问句中：Where\How\Who\What\Why+be动词+人称代词或名词？例：What is your name? My name is Lili. Where are you? I’m in the classroom. 二、Be动词专项练习题（一．）用be动词适当的词填空。 1. I ________ from Australia. 2. She _______ an English student. 3.Mike and Tom _________ my friends. 4. My parents _______ very busy every day. 6.I ______ an English teacher now. 7.Where _________ you from? 10.The light _________ green. 11.My name _________ Li Lei. I _________ twelve. 12._______they your new friends? 13. I ______ a boy. ______you a boy? No, I _____ not. 14. The girl______ Jack's sister. 15. The dog _______ tall and fat. 16. ______ your brother in the classroom yesterday? 17. Where _____ your mother? She ______at home. 18. Whose dress ______ this? 19.That ______ my red skirt. 20.Who ______ I? 21. Some tea ______ in the glass. 22.Jhon ______ busy last weekend.. 23. My sister's name ______Nancy. 24. This ______ not Wang Fang's pencil. 25. ______ David and Helen from England? 26. We ____ friends. 27. She ___ a teacher. 28. I ___ a girl. 29. Many ants ____ in my house. 30.His mother ____ fat. （二.）写出下列词适当形式: 1.I am (缩略形式) ______ 2.is (复数)______ 3.we are (缩略形式) ______ 4.are not(缩略形式) ______ 5.is not (缩略形式) ______ 6.is/am(过去式形式) ______ 7.she's(完整形式) ______ 8.it's(完整形式) ______ 9.they're(完整形式) ______ 10.are(过去式形式) ______ （三. ）将下列句子变成否定句和一般疑问句 1.His brother is a teacher. 否定句:______________________________ 一般疑问句: __________________________ 2.They are his parents. 否定句: ______________________________ 一般疑问句: ___________________________ 3.I was busy last weekend. 否定句:_______________________________ 一般疑问句: ___________________________ 4.Lucy is gong to the bookstore tomorrow.. 否定句: ______________________________ 一般疑问句:__________________________ 5.I am an English teacher . 否定句:_______________________________ 一般疑问句: ___________________________ 6.They were busy yesterday. 否定句: _______________________________ 一般疑问句:___________________________ 7.I am going to visit my grandparents this weekend. 否定句: _______________________________ 一般疑问句: ___________________________ 8.You were happy yesterday. 否定句:_______________________________ 一般疑问句: ___________________________ 9.We are twins. 否定句: _______________________________ 一般疑问句: _______________________________ 10.Mike was tired last weekend. 否定句: ______________________________ 一般疑问句: _________________

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