易混辨析:unless和until用法区别A good storyteller must be able to hold his listeners curiosity _ he reaches the end of the story.A. when B. Unless C. after D. until解析:答案是D。不少同学可能会误选unless,引导条件状语从句,但分析语境可知,该空格表示“直到”,强调时间的延续,应用until引导时间状语从句。本题着重考查unless和until的用法区别,其用法区别是热点考点。本文拟谈一谈unless和until的用法区别。一、作为从属连词含义不同,引导从句性质不同unless与until均为从属连词,unless表“除非”,强调条件,引导条件状语从句;until表“直到”,强调时间的延续,引导时间状语从句。1. I didnt know the news until my teacher told it to me. 2. I couldnt kno