【译文】众所周知,普通人白天的正常活动周期是16-17小时的清醒状态后转成约7-8小时的睡眠。一般说来,正常情况下睡眠与黑夜时间相一致。
【析句】本句话的主干是We all know+that宾语从句 and+that宾语从句。具体看来,第一个宾语从句是the normal human daily cycle...is of some alternation with..., 第二个宾语从句是the sleep coincide with...,broadly speaking作插入语。
3. The ease, for example, with which people can change from working in the day to working at night is a question of growing importance in industry where automation calls for round-the-clock working of machines.
【译文】例如,由于工业自动化要求机器昼夜运转,人们能否轻松地把白天工作改成晚上工作就成为工业生产中日益重要地问题了。
【析句】复合句。主句是The ease is question of growing importance in industry,the ease后是定语从句with which people can change from...to...,先行词the ease在定语从句中作with的宾语;而industry后也有where引导的定语从句。
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