be动词一般现在时的用法.doc

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1、be动词一般现在时的用法一、 形式 am is are我用am, 你用are, is用于他她它，单数is，复数全用are。二、把肯定句变成否定句直接在be动词后加not 变成一般疑问句把be动词提前到句首然后后面加？相应练习用is、am 、are 填空1、 Yeah, she_ a student.2、 I _ Jenny. He_ Peter.3、 How old _you? Im ten.4、 _ this a cat?5、 You _ my friend.6、 What _ this ? Its a cat.课堂小测试一、用am,is,are填空。1.I _ Kitty. She _ a

2、 student.2.Jane and Tom _my friends. My sisters _tall.3._ there a table in the room?4.There _ some glasses on it.5.There _many monkeys in the zoo.二、有be动词的肯定句和否定句 I am from London. I am not from London.He is a teacher. He is not a teacher.She is in the dining room. She is not in the dining room. My hair is long. My hair is not long. Her eyes are small. Her eyes are not small. 归纳：在有be动词的句子中，改否定句时只要在be动词_加上_。三、有be动词变一般疑问句，把be前提 Am I a Chinese? Yes, you are. No, you arent. Are they American? Yes, they are. No, they arent. Is the cat fat? Yes, it is. No, it isnt.