写作文时,有的同学往往为了一个好开头而绞尽脑汁,迟疑不决,有时下笔千言,却离题万里;结尾时又常常纠结半天,或拖泥带水,或画蛇添足,或空喊口号等。这样常出现“有头无尾”“虎头蛇尾”或“牛头不对马嘴”等现象。如何开好头、结好尾呢? At the time of writing, some students often rack their brains for a good start, hesitating, and sometimes make a thousand words, but leave the question miles; the end often tangled for a long time, or unabashedly, or superfluous, or empty shouting slogans. This often appears “no tail ” “or ” or “bull’s head is not the horse ” and so on. How to make a good start, knot good end?