新概念英语第一册语法总结新概念英语第一册语法总结一、时态： 1. 一般现在时表示一般性，经常性的动作或客观存在事实。动词be的用法：I用am，you用are，其他记牢单用is复用are。1 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?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.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.2. 现在进行
