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　　In the years prior to the Civil War, Philadelphia’s African American press encourage readers to be vaccinated against smallpox. This journalistic campaign was initially (i)_____, appealing to readers sense of communal duty, and became even more (ii)_____ once the war started, as smallpox outbreaks began to occur on Philadelphia’s outskirts.

　　Blank (I)Blank (II)

　　A：hortatory D：controversial

　　B：ineffective E：urgent

　　C：widespread F：inopportune

　　答案：AE

　　A hallmark of certain nineteenth-century mystery novels was the reform agenda of their authors, who ostensibly sought to expose economic injustice while depicting the seamy underside of urban life. In reality, however, these claims to a radical political agenda were often (i)_____ meant to give lurid thrillers the appearance of (ii)_____.

　　Blank (I)Blank (II)

　　A：authentic D：escapist appeal

　　B：complicated E：high-minded purpose

　　C：disingenuous F：gripping suspense

　　答案：CE

　　It remains a mystery how Theobroma cacao, which scholars believe originated in lowland Amazonia, was introduced to tropical Mesoamerica. It must have been a (i)_____ process: cacao trees do not easily sprout from seed, need years to mature, and grow only in humid lowland forest. Moreover, in a tropical climate, cacao pods spoil quickly, rendering their transport from lowland Amazonia tropical Mesoamerica in a single journey by foot or canoe (ii)_____.

　　Blank (I)Blank (II)

　　A：clandestine D：unlikely

　　B：protracted E：redundant

　　C：spontaneous F：expeditious

　　答案：BD

　　So (i)_____ is the reputation of the country's police for corruption and other forms of (ii)_____that it has become a kind of tradition that every newly appointed police chief pledges to (iii)_____the force.

　　Blank (I)Blank (II)Blank (III)

　　A：persisted D：indolence G：contradict

　　B：paralyzing E：incompetence H：reform

　　C：unfounded F：criminality I：reward

　　答案：AFH

　　For decades, Pluto seemed to be the mysteriously _____ planet: it was first thought to be about as large as Earth, but, subsequently, measurements had it smaller and smaller.

　　A：morphing

　　B：appearing

　　C：dwindling

　　D：orbiting

　　E：contracting

　　F：emerging

　　答案：CE

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