单选题
American presidents seem to age before our eyes. But the common belief that high-office stress grays our leaders faster than【C1】______may be a myth, new research finds. In fact, the majority of American presidents have lived longer than【C2】______men of their times. That's not to【C3】______that chronic stress has no effect on a person's lifespan, but【C4】______does high social standing. The findings【C5】______a body of research linking high status to better health:【C6】______, Oscar winners live longer than those who were only【C7】______; and the long life effect is also seen in Nobel Prize winners. The new study, which was published in the Journal of the American Medical Association,【C8】______the dates of birth, inauguration and death of all 34 past presidents who died of natural causes. The【C9】______lifespan for these men should have been 68 years,【C10】______they'd aged twice as fast during their years in【C11】______as the popular wisdom suggests they do. 【C12】______, the study found, these presidents lived an average 73 years. And indeed, 23 of the 34 presidents who died of natural causes lived longer than【C13】______, compared with other men their age during their lifetimes. Some presidents【C14】______an exceptionally long time: Gerald Ford died at 93.5 years, AND Ronald Reagan at 93.3. All【C15】______living presidents have already exceeded their life【C16】______, or are likely to do so. So why do people【C17】______the top of the hierarchy fare better than those below?【C18】______to wealth, education and the best health care of their times would seem to be obvious factors【C19】______medical attention seems to have actually killed President Garfield, who died from a fatal【C20】______introduced by his doctors' unclean treatment techniques after he was shot by an assassin.
【答案解析】解析：固定搭配题。此处填入动词，与空格前的That is not to连用，后接that引导的宾语从句。that is(not) to say为习惯用语，意为“这是(并不是)说……”，通常用于承接上文内容继续加以阐述，此处that指代上一段末句的“大多数美国总统要比同时代的一般人活得更长”，故答案为B项。
【答案解析】解析：上下文语义题。此处应填入谓语动词，连接前后的主语和宾语。主语The findings指的是第一段提及的new research的研究结果，根据分号后所提到的奥斯卡奖和诺贝尔奖得主可知，a body of research是之前已经进行的研究，由此推断，新研究应该补充强化了之前的研究，D项add to作“补充”讲时，表示“这些发现是对身处高位与更好的健康状况之间的联系所进行的大量研究的补充”，符合句意。
单选题
【C6】
【正确答案】
A
【答案解析】解析：语义逻辑题。空格位于冒号之后(冒号后的内容通常是对前文作进一步的说明)，空格后则讲了两个具体的事例，即奥斯卡奖得主和诺贝尔奖得主要比那些只获得提名的人士寿命更长。这两个事例正好呼应了冒号前提及的a body of research linking high status to better health“把身处高位与更好的健康状况联系起来的很多研究”，可见，后面的事例是对前文的举例说明，A项for instance“例如”符合语义。
单选题
【C7】
【正确答案】
B
【答案解析】解析：上下文语义题。该句将Oscar winners与those who were only______进行对比。奥斯卡颁奖程序通常是提名几个人，然后再从提名者中评选出真正的得主。因此，与奥斯卡得主相对应的应该是受提名的人，故选B项nominated“提名”。
单选题
【C8】
【正确答案】
D
【答案解析】解析：上下文语义题。此处空格处应填入谓语动词，说明“新研究”怎样。根据主语the new study和空格后的宾语“34位历届总统的出生、就职和死亡时间”，可以判断这里填D项analyzed“分析”最符合语境，即新研究分析了这些因素。
单选题
【C9】
【正确答案】
B
【答案解析】解析：上下文语义题。此处谈及的是总统的寿命，空格处为形容词修饰lifespan。空格后的should have been 68 years“本应该是68岁”是一种假想或猜测，而下一段第一句则讲到“研究发现这些总统平均(average)活到了73岁”，前后形成对照。根据这一语境，推断空格处也应填入表示“平均”的词，表示人们所认为的平均寿命是68岁，故选B项average“平均的”。
【答案解析】解析：上下文语义题。文章第一段第二句就提到人们通常认为位于高层的压力(high-office stress)会使领袖比在常态下苍老得更快，此处提及的总统寿命也是大众的观点(as the popular wisdom suggests)。根据they'd aged twice“他们加倍衰老”和空格前during their years in推断此处应该是讲在职期间，in office为常用搭配，意为“在职”，填入句中表示“他们在任职期间加倍衰老”，符合上下文语境，选C项。
【答案解析】解析：固定搭配题。空格后面的the hierarchy“层次”说明此处是讲职场中的职位层级，at the top of意为“在首位”，文中则是指总统位置，故选C项at。
单选题
【C18】
【正确答案】
B
【答案解析】解析：上下文语义题。此处是在解答“为什么处于最高层的人要比其他人活得更久”。根据空格后面的seem to be obvious factors“似乎是显而易见的因素”，推断这些位于高层的人应该是拥有“财富、教育和最好的医疗机会”，才能促使这些因素成就了他们的长寿，故空格处应填入表示“拥有或获得”的词。B项Access与介词to构成access to“获得……的机会”，符合语义。
单选题
【C19】
【正确答案】
C
【答案解析】解析：语义逻辑题。空格前指出，获得财富……和最好的医疗(the best health care)是影响位于最高层的人长命的显而易见的因素之一；而空格后则讲到，“医学治疗似乎是要了加菲尔德总统的命”。这两者之间包含一种让步转折关系，故选C项although“尽管”。