题目内容
2.Simon won't be healthy if he doesn't stop smoking.(保持句意不变)Simon won't be healthyunless hestops smoking.
分析 如果他不戒烟,西蒙身体就会不健康.
解答 正确答案:unless,stops.if表示如果,引导条件状语从句,unless表示如果不,相当于if…not,两者可以相互进行转换,通常遵循"主将从现"的原则,即主句是一般将来时,从句则是一般现在时,故第一空填写unless,第二空因主语he是第三人称单数,谓语应用单三形式stops.stop doing sth.表示停止做某事.
点评 本题考查句型转换,要求考生要有扎实的词汇语法基础,再根据题干进行做题.
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