美国习惯用语-第195讲on thin ice
<p>美国习惯用语-第195讲<span word="on">on</span> <span word="thin">thin</span> <span word="ice">ice</span></p><p>我们给大家介绍过几个以<span word="fat">fat</span>，就是"胖"这个字为主的习惯用语，今天我们来给大家讲解两个和"瘦"这个字有关的常用语。<span word="Thin">Thin</span>. <span word="Thin">Thin</span>可以解释为"瘦"，但是在不少场合也是指"薄"，厚薄的"薄"。在今天我们要讲的两个习惯用语里，<span word="thin">thin</span>都解释为"薄"。我们先来讲第一个：<span word="Thin">Thin</span> <span word="ice">ice</span>. <span word="Ice">Ice</span>就是"冰"，滑冰的"冰"。<span word="Thin">Thin</span> <span word="ice">ice</span>就是"薄的冰"。</p><p>一到冬天，许多地方的河流或湖水都会结成冰。这是孩子们滑冰的好时机。但是任何人要是在很薄的冰上行走或滑冰的话，那是很危险的，因为薄的冰不一定能承担他的体重。万一冰块破裂，人就要掉到冰冻的河水里，有的人甚至会丧失生命。因此，<span word="on">on</span> <span word="thin">thin</span> <span word="ice">ice</span>这个俗语的意思就是指各种危险的处境。由于这个说法已经扩展到生活的各个方面，因此<span word="on">on</span> <span word="thin">thin</span> <span word="ice">ice</span>并不一定是指肉体或涉及生命的危险。下面这个例子就能说明问题。这是一个教授在警告一个学生。他说：</p><p>例句-1: <span word="Young">Young</span> <span word="man">man</span>, <span word="unless">unless</span> <span word="you">you</span> <span word="start">start</span> <span word="turning">turning</span> <span word="in">in</span> <span word="your">your</span> <span word="assignments">assignments</span> <span word="on">on</span> <span word="time">time</span> <span word="and">and</span> <span word="pull">pull</span> <span word="up">up</span> <span word="your">your</span> <span word="test">test</span> <span word="scores">scores</span>, <span word="I">I</span> <span word="have">have</span> <span word="to">to</span> <span word="tell">tell</span> <span word="you">you</span> <span word="that">that</span> <span word="you">you</span> <span word="are">are</span> <span word="on">on</span> <span word="thin">thin</span> <span word="ice">ice</span> <span word="in">in</span> <span word="this">this</span> <span word="class">class</span>. <span word="Right">Right</span> <span word="now">now</span> <span word="you">you</span>\'<span word="re">re</span> <span word="very">very</span> <span word="close">close</span> <span word="to">to</span> <span word="failing">failing</span>.</p><p>这个教授说：小伙子，我得告诉你，你现在在这个班里的学业情况很危险，除非你及时交作业而且提高你测验的分数。你现在的情况是近乎不及格。</p>
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