文档介绍：外研社(新标准)六年级英语上册第十模块 At the library 祈使句: 祈使句表示要求、命令让他人做某事,常以动词原形开头,出于礼貌我们有时会在句子开头或句子末尾加上please,祈使句的否定形式就是直接在动词前面加上Don’t,意为“不要……” 1、Please stand in line. Please listen to music. Please read a book. Please hold my hand. 2、Don’t talk in the library. Don’t go straight on . Don’t eat food. Don’t swim. Don’t walk on the grass. Library