新概念英语第一册语法总结VIP专享VIP免费

一、时态： 一般现在时，现在进行时，一般过去时，现在完成时，一般将来时，过去进行时，过去完成时，过去将来时 1. 一般现在时 表示一般性，经常性的动作或一般性事实。 1 含有be 动词的句子 He is a teacher. The girl is v ery beau tifu l. Tim and Jack are stu dents. ★变疑问句将be 动词移到句首 Is he a teacher? Is the girl v ery beau tifu l? Are Tim and Jack stu dents? ★变否定句在be 动词后面加 not He is not a teacher. The girl is not v ery beau tifu l. Tim and Jack are not stu dents. ★肯定回答及否定回答 Yes, he is. No, he is not. Yes, she is. No, she is not. Yes, they are. No, they are not. ★不含有be 动词的句子，即含有一般动词的句子 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? ★变否定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称变化。 He doesn’t like books. She doesn’t like him. The dog doesn’t like bones. ★肯定回答及否定回答： Yes, he does. No, he doesn’t. Yes, she does. No, she doesn’t Yes, it does. No, it doesn’t. 注意：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，变否定句或疑问句时名词复数没有任何变化。 其他人称及复数名词 I want to have a bath. We have some meat. The students 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? ★变否定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. ★肯定回答及否定回答 Yes, I do. No, I don’t. Yes, we do. No, we don’t Yes, they do. No, they don’t. 6. 过去完成时： 用法：在过去的时间里，两个动作中，发生在前的哪个动作要用过去完成时。 结构：had+过去分词 After she had finished her hom...