新概念英语第一册语法总结 —— 时态时态：一般现在时，现在进行时，一般将来时，一般过去时 / 现在完成时，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，常常性的动作或一般性事实。* 含有 be 动词的句子 (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?) ★变否定句在 be 动词后面加 not (He is not a teacher.;The girl is not very thin.;Tim and Jack are not students.) ★肯定回答与否定回答 (Yes he is. No he is not.Yes she is. No she is not.Yes they are. No they are not.) * 不含 be 有动词的句子，即含有一般动词的句子 第三人称单数与单数名词 (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?) ★变否定句在主语与动词之间加 doesn’t 动词变为原型 (He doesn’t like books. She doesn’t like him. The dog doesn’t like bones.) ★肯定回答与否定回答 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）其他人称与复数茗词 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. ★肯定回答与否定回答 Yes I do. No I don’t. Yes we do. No we don’t. Yes they do. No they don’t. 2. 现在进行时，表示现在正在进行的动作。构成： 主语＋be 动词＋动词的现在分词＋其它成分（现在分词的构成见附录） We are having lunch. He is reading a book. The dog is running after a cat. The...
