【译文】人们睡觉时经历了一连串的睡眠阶段 浅度睡眠阶段,深度睡眠阶段,快速眼动睡眠阶段 大约每90分钟重复一次。
58.
You program the clock with the latest time at which you want to be wakened, and it then duly wakes you during the last light sleep phase before that.
【分析】本句为并列复合句。句子主干为You program the clock, and it wakes you。at which 引导定语从句,修饰 time,which 在从句中作时间状语,at+时间是固定搭配,所以 which 之前加介词 at,表示在某一具体时间点。句末的 that 指代 the latest time。
【译文】将闹钟调好至你想起床的时间,它便会适时地在之前的最后一个浅眠期将你叫醒。
59.
Home builders can now use materials such as paints that release significantly reduced amounts of organic compounds that don t destroy the quality of the air, water, or soil.
【分析】本句为复合句。主句为Home builders can now use materials。such as compounds是举例说明,作插入语。第一个 that 引导定语从句,修饰 paints;第二个 that 引导定语从句,修饰 materials。
【译文】房屋建造者们现在可以使用不破坏空气、水或土壤的材料,如释放少量有机物的涂料。
60.
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