使人一開始就能了解文章要說明的內(nèi)容，就意味著有了良好的開端，如“catching thieves (捉賊)”的開頭可以這樣寫：i lay in bed in the hospital. i smiled at my friends even though my legs hurt. do you want to know what happened to me? let me tell you. it’s a … story.good beginning is half done，(二)首尾呼應(yīng)，再如“t