“以”字是中学生必须掌握的重点文言词之一。掌握好“以”字的用法,对提高文言文阅读能力和理解能力极其重要。在教学中,想让学生很好地掌握它的用法也是一件不容易的事。“以”作动词、介词和连词是“以”字最常见的用法。用三种“格式”加以区别,就能熟练掌握“以”字的基本用法。 “To ” is one of the key words that middle school students must master. Grasping the use of the word “” is extremely important for improving the ability of reading and comprehension of classical Chinese. In teaching, it is not easy for students to master its usage well. “To ” as a verb, prepositions and conjunctions is the most common usage of “to ”. With the three “format ” to be distinguished, you can master “to ” the basic usage.