2. 外语
  3. The history of African—Americans during the past 400 years is traditionally narrated【C1】______an ongoing struggle against【C2】___

The history of African—Americans during the past 400 years is traditionally narrated【C1】______an ongoing struggle against【C2】___

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问题     The history of African—Americans during the past 400 years is traditionally narrated【C1】______an ongoing struggle against【C2】______and indifference on the part of the American mainstream, and a struggle【C3】______as an upward movement is【C4】______toward ever more justice and opportunity.
    Technology in and of【C5】______is not at fault; it’s much too simple to say that gunpowder or agricultural machinery or fiber optics【C6】______been the enemy of an【C7】______group of people. A certain machine is put【C8】______work in a certain way—the purpose【C9】______which it was designed. The people who design the machines are not intent on unleashing chaos; they are usually trying to【C10】______a task more quickly, cleanly, or cheaply,【C11】______the imperative of innovation and efficiency that has ruled Western civilization【C12】______the Renaissance.
    Mastery of technology is second only【C13】______money as the true measure of accomplishment in this country, and it is very likely that by【C14】______this under-representation in the technological realm, and by not questioning and examining the folkways that have【C15】______it, blacks are allowing【C16】______to be kept out of the mainstream once again. This time, however, they will be【C17】______from the greatest cash engine of the twenty-first century. Inner-city blacks in particular are in danger, and the beautiful suburbs【C18】______ring the decay of Hartford, shed the past and learn to exist without contemplating or encountering the tragedy of the inner city.
    And blacks must change as well. The ways that【C19】______their ancestors through captivity and coming to freedom have begun to loose their utility. If blacks【C20】______to survive as full participants in this society, they have to understand what works now."
【C6】
选项 A、have
B、to have
C、has
D、to has
答案C
解析 谓语动词应与主语保持一致。根据就近原则，因为主语是“fiber optics”，所以选用单数形式“has”。
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