be動(dòng)詞的用法PowerPoint 演示文稿

1、1 人教版七年級(jí)英語(yǔ)上冊(cè)知識(shí)點(diǎn) be動(dòng)詞用法(一般現(xiàn)在時(shí)態(tài)) 宣威市文興鄉(xiāng)一中 徐玉娥 1.運(yùn)用口訣：我用am，你用are， is跟著他(he)她(she)它(it)，單數(shù)用is，復(fù)數(shù)用are.4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.句型轉(zhuǎn)換： 否定句： 在be動(dòng)詞am,is,ar

2、e后加not,并作相應(yīng)的縮寫(xiě)為 amnt, isnt, arent. 一般疑問(wèn)句： 把be動(dòng)詞 am, is, are提到句首，大寫(xiě)首字母,句末加問(wèn)號(hào)，讀為升調(diào). 肯定回答用: Yes, 主語(yǔ)+ am /is /are. 否定回答用: No, 主語(yǔ)+amnt / isnt /arent.6例句演示： 1. You are a boy. You arent a boy. Are you a boy? Yes, I am. (肯定回答不能縮寫(xiě)肯定回答不能縮寫(xiě).) No, Im not.7 2. It is a green ruler. It isnt a green ruler. Is it a

3、green ruler? Yes, it is. No, it isnt.8 3. Im a good student. Im not a good student. Are you a good student? (變?yōu)橐话阋蓡?wèn)句時(shí)第一人稱(chēng)換為第二變?yōu)橐话阋蓡?wèn)句時(shí)第一人稱(chēng)換為第二人稱(chēng)人稱(chēng)) Yes, I am.(肯定回答不能縮寫(xiě)肯定回答不能縮寫(xiě).) No, Im not.9 4. This is my key. This isnt my key. Is this your key? Yes, it is.(肯定回答不能縮寫(xiě)肯定回答不能縮寫(xiě).) No, it isnt.注：以注：以this,that 作主語(yǔ)的問(wèn)句，回答用作主語(yǔ)的問(wèn)句，回答用Yes, it is. No, it isnt. 而以而以these, those作主語(yǔ)作主語(yǔ)的問(wèn)句，回答用的問(wèn)句，回答