一般现在时 一般过去时
额 请问一下 你是不是要每个单元的语法还是大概的想知道详细一点的额，那我做个示范 unit1 say 与speak 的区别 say说话的内容speak说的语言 how dio you like...=what do you think of..be from=come from \write to=write a letter to ...get a letter from = hear fromforeign langage 外语 tell sb about sth