新东方英语每日一句：Had it not been for the alarm clock she wouldn't have been late.

英语自学网

        　　原文：Had it not been for the alarm clock she wouldn't have been late.
        　　翻译：如果不是因为闹钟不响的话，她就不会迟到了。
        　　解析：本句属于非真实条件状语从句的倒装语序，原句应为：
        　　If it had not been for the alarm clock, she wouldn't have been late.其中主句和从句都与过去事实相反，因此if从句用了had+过去分词，主句用了would+不定式。我们再来看一句类似的倒装转换。
        　　原句：If he had worked harder, he would have passed the exam.
        　　倒装：Had he worked harder, he would have passed the exam.