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1、 新概念英语第一册语法总结：一般现在时He is a teacher. The girl is very beautiful. Tim and Jack are students. 变疑问句将be动词移到句首 Is he a teacher? Is the girl very beautiful? Are Tim and Jack students? 变否认句在be动词后面加not He is not a teacher. The girl is not very beautiful. Tim and Jack are not students. 确定答复及否认答复 Yes, he is. /
2、 No, he is not. Yes, she is. / No, she is not. Yes, they are. / No, they are not. 2、不含有be动词的句子，即含有一般动词的句子。 (1)第三人称单数及单数名词 He likes books. She likes him. The dog likes bones. 变疑问句在句首加does, 动词变为原型 Does he like books? Does she like him? Does the dog like bones? 变否认句在主语及动词之间加doesn”t, 动词变为原型，原句中的动词不再有第三人
3、称变化。 He doesn”t like books. She doesn”t like him. The dog doesn”t like bones. 确定答复及否认答复： Yes, he does. / No, he doesn”t. Yes, she does. / No, she doesn”t Yes, it does. / No, it doesn”t. 留意：第三人称单数形式一般在动词后面加S，不要和名词复数混淆，变否认句或疑问句时名词复数没有任何变化。 (2)其他人称及复数名词 I want to have a bath. We have some meat. The stu
4、dents like smart teachers. 变疑问句在句首加do Do you want to have a bath? Do we have any meat? Do the students like smart teachers? 变否认句在主语和动词之间加don”t. You don”t want to have a bath. We don”t have any meat. The students don”t like smart teachers. 确定答复及否认答复 Yes, I do. / No, I don”t. Yes, we do. / No, we don”t Yes, they do. / No, they don”t.
