江苏高考必考题英语答案

71 原文中句子：So a little magnetic needle that swings freely lines itself with the big earth magnet to point north and south填空：Our earth is a big magnet and a little freely (71)________ magnetic needle lines itself with the earth magnet to point north and south对比后就会发现区别在于：原文中是needle后跟了定语从句that swings freely, 而填空把freely提前了，显然要把定语从句转换成定语，所以swinging。要记得，定语从句都可以转换成充当定语的ing或ed形式修饰原来的先行词，取决于和所修饰的词是主动关系还是被动关系。72 原文中句子：When people discovered that idea about a thousand years ago and invented the compass, it allowed sailors to navigate (航海) on ocean voyages, even under cloudy skies填空：(72)________ on the idea above, the navigating compass was invented这个空要理解原句意思：大约1000年前，人们发现了这一观点并发明了指南针，使得水手能够在大洋中航行，即使天空乌云密布。填空句意思：基于以上观点，航海用指南针被发明出来。填Based，和后面的on是固定搭配，建立在基础之上; 以…为依据。

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