[技法阐释]“借题发挥”原本是一个成语,意思是借某事为由,去做其他的事,来达到自己的目的;用于写作,则是指从某一事情或者某一现象生发开去,涉及其他同类的事情或者现象,从而阐明某一道理的谋篇技法。记叙“某一事情”是引子,阐明“某一道理”则是主体;“某一事情”为“某一道理”的铺垫,“某一道理”为“某一事情”的生发:二者 [Technical interpretation] “Borrow to play ” was originally an idiom, which means to borrow something for other things, to achieve their own goals; for writing, it refers to the development from a certain event or a phenomenon Going open, involving other similar things or phenomena, so as to clarify the truth of a conspiracy techniques. “Something” is an introduction, which states that “one reason” is the subject; “One thing” is the bedding of “one reason”, “one reason” Germination of “Something”: Both