八大时态语法总结一、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，常常性的动作或一般性事实。(1)含有 be 动词的句子★一般肯定句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 notHe is not a teacher.The girl is not very beautiful.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.(2)不含有 be 动词的句子，即含有一般动词的句子A、第三人称 he she it 单数与单数名词 apple apples(复数名词=they)★一般肯定句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,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.★肯定回答与否定回答：Yes, he does. No, he doesn’t.Yes, she does. No, she doesn’tYes, 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。B、其他人称与复数名词★一般肯定句I want to have a bath.We have some meat.The students like smart teachers.★变疑问句在句首加 doDo 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’tYes, 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）★一般肯定句We are having lunch.He is rea...
