距离2012年6月四六级考试越来越近,现在正是四六级考生复习冲刺的黄金时期。为了助大家取得好成绩,在线四六级频道为考生网罗了四六级辅导名师,整合了各题型备考资料,给你一站式学习体验。
56.
Ultimately, however, our basic design strategy is focused not simply on being less bad but on creating completely healthful materials that can be either safely returned to the soil or reused by industry again and again.
【分析】本句为复合句。句子主干为our basic design strategy is focused not on being less bad but on creating healthful materials。that引导定语从句,修饰materials。however 意为 然而 ,是插入成分。not but 意为 不是 而是 ,连接两个介词短语。either or 意为 或者 或者 ,表示并列结构。
【译文】然而最终,我们的基本设计目标不仅是简单地关注于 较低危害 ,而是发明完全有益于健康的材料,这种材料或可以无害地回归土地,或可以被工业重复利用。
57.
As you sleep you pass through a sequence of sleep states light sleep, deep sleep and REM sleep that repeats approximately every 90 minutes.
【分析】本句为复合句。主句主干为you pass through a sequence of sleep states。as引导时间状语从句,表示 当 时 。that引导非限制性定语从句,修饰a sequence of sleep states,that在从句中作主语。light sleep, deep sleep and REM sleep 是插入成分,具体说明 states 的内容。
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