考研英语长难句：一句句突破长难句（05）
<p> 长难句：<span word="The">The</span> <span word="rats">rats</span> <span word="develop">develop</span> <span word="bacterial">bacterial</span> <span word="infections">infections</span> <span word="of">of</span> <span word="the">the</span> <span word="blood">blood</span>, <span word="as">as</span> <span word="if">if</span> <span word="their">their</span> <span word="immune">immune</span> <span word="systems">systems</span> <span word="the">the</span> <span word="self">self</span>-<span word="protecting">protecting</span> <span word="mechanism">mechanism</span> <span word="against">against</span> <span word="diseases">diseases</span> <span word="had">had</span> <span word="crashed">crashed</span>.</p><p> 结构剖析：本句是一个主从复合句，逗号前为主句，后面的 <span word="as">as</span> <span word="if">if</span> 引导一个状语从句，使用虚拟语气，表示与事实相反;破折号之间的部分 <span word="the">the</span> <span word="self">self</span>-<span word="protecting">protecting</span> <span word="mechanism">mechanism</span> <span word="against">against</span> <span word="diseases">diseases</span> 作破折号前的 <span word="immune">immune</span> <span word="systems">systems</span> 的同位语。</p><p> 核心词汇：</p><p> <span word="develop">develop</span> 患(病)</p><p> <span word="mechanism">mechanism</span> 机制</p><p> 参考译文：老鼠的血液出现了细菌感染，好像它们的免疫系统 对抗疾病的自我保护机制 已经垮掉了。</p><p> </p>
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