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1、人教版七年级英语上册知识点,be动词用法(一般现在时态),宣威市文兴乡一中 徐玉娥,1.运用口诀:,我用am, 你用are, is跟着他(he)她(she)它(it), 单数用is, 复数用are.,用法演示:,1. I am a girl. 2. You are a teacher. 3. He is my father. 4. She is fine. 5. It is a ruler. 6. His pen is red. 7.My cat is nice. 8. We are friends. 9. They are good boys.,2.句型转换:,否定句: 在be动词am,is
2、,are后加not,并作相应的缩写为 amnt, isnt, arent. 一般疑问句: 把be动词 am, is, are提到句首,大写首字母,句末加问号,读为升调. 肯定回答用: Yes, 主语+ am /is /are. 否定回答用: No, 主语+amnt / isnt /arent.,例句演示:,1. You are a boy. You arent a boy. Are you a boy? Yes, I am. (肯定回答不能缩写.) No, Im not.,2. It is a green ruler. It isnt a green ruler. Is it a green
3、ruler? Yes, it is. No, it isnt.,3. Im a good student. Im not a good student. Are you a good student? (变为一般疑问句时第一人称换为第二人称) Yes, I am.(肯定回答不能缩写.) No, Im not.,4. This is my key. This isnt my key. Is this your key? Yes, it is.(肯定回答不能缩写.) No, it isnt. 注:以this,that 作主语的问句,回答用Yes, it is. No, it isnt. 而以these, those作主语的问句,回答用Yes, they are. No, they arent.,Thank you,