2. 外语
  3. Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refrainin

Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refrainin

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问题 Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods could help reverse blockage of coronary arteries, the blood vessels that feed the heart.
选项 A、Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods could
B、Despite no proof having been proved to reverse hardening of the arteries when consumed, studies indicate that refraining from eating certain foods can
C、Although the consumption of no particular foods have been proved to reverse hardening of the arteries, studies indicate that to refrain from eating certain foods could
D、Although not proved that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods can
E、Although it has not proved that the consumption of any particular foods will reverse hardening of the arteries, studies indicate that refraining from eating certain foods can
答案E
解析 由以上原则，可首先排除A、B。C中有两个缺陷：(1)从句中，prove本可用主动形式表示被动含义，因而此处用被动语态是不必要的，应换为主动形式；(2)主句中that从句的主语用动词不定式不如用动名词好，因为此处强调的是经常性的行为而非某一次具体动作；同时动词不定式作主语一般是to do is to do的句型，这里不符合；(可查阅动词不定式一章的相关内容)D中用了状语从句的省略结构，但把主语studies代入省略结构中，逻辑不通，且用过去分词proved是不妥的；E中，使用了it has not been proved that的习惯用语。而且E句意准确，明了。
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