精选优质文档-倾情为你奉上一一般现在时定义:表示通常情况下发生的事情或者存在的状态句型结构一:主语+系动词+表语系动词: be动词:am,is , are 感官动词: feel, look, sound, taste, smellbe动词的搭配:I 用am, you 用are,is分给he,she,it; 复数全部都用are。例1:I am a middle school student.例2:You are from China.例3:She is the best student in our class.例4:We are close friends.句型转换:变为否定句:I am not a middle school student.(在be动词后加not)变为一般疑问句: Are you a middle school student?(be动词提前,其它不变)回答: Yes, I am. N