OnehotnightlastAugust,ItriedeverythingIcouldthinkof—awarmbottle,songsetc.tomakehimfallintosleep,buthejustcouldn’tdoit.SinceIbelievedthatalongnightwaswaitingformeahead,IhadnochoicebuttobringaTVintohis

Question

One hot night last August,I tried everything I could think of — a warm bottle,songs etc.to make him fall into sleep,but he just couldn’t do it.Since I believed that a long night was waiting for me ahead,I had no choice but to bring a TV into his room to kill off the hours until dawn.I was surprised that the moment I turned on the TV the baby became quiet right away and fixed his little eyes brightly on the screen.Not willing to waste an （请问这里为什么用an,不能用the?）opportunity for sleep,I then tiptoed out of the room,leaving him to watch the boring TV programs.

Answer 1

因为 这是类指 所以用不定冠词 强调的是 机会 而不是其他 事情
就像 this is a book一样 表示的是类别