Imperative Sentence英语祈使句河南省焦作市孟州市河雍小学 杨月仙 Dont play football on the street.不要Dont sleep in class. 不要Please be quiet.Please stand in line.Dont _ Please_talk in class.listen to the teacher.Look and think (What can you find?)lDont play football on the street.lDont sleep in class. l Please be quiet.lPlease listen to the teacher.lDont talk in class.lLets go tomorrow.(表示命令)(表示请求)(表示警告)(表示建议) 以上这些 以Please和Dont开头,来表达请求、命令、建议、警告的句子就叫祈使句,有时为了表达客气的语气,我们在句首或句尾加上please。(表示请求)(表示警告)(一)祈使句的特征 1.以动词原形开头或Dont 开头