【问题呈现】案例一:《粜米》结尾这样写道:“旧毡帽朋友把自己种出的米送进了米行的廒间,换到手的是或多或少的一叠钞票。”阅读时,教师让学生自读课文,完成填空:句中的“送”可用______等词语代替,比较这些词语可知这里用______最好,因为______。句中的“或多或少”是说_____ 【Problem Presentation】 Case 1: “Mi Mi” ends with the following remark: “Old felt hat friends put their own rice into the rice bank and changed hands to a more or less stack of banknotes.” Reading, the teacher let students read the text, fill in the blank: sentence “send” available ______ and other words instead, comparing these words we can see here ______ best, because ______. The phrase “more or less” means _____