2. 外语
  3. For decades, Americans have taken for granted the United States’ leadership position in the development of new technologies. The

For decades, Americans have taken for granted the United States’ leadership position in the development of new technologies. The

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问题     For decades, Americans have taken for granted the United States’ leadership position in the
development of new technologies. The innovations (创新)that resulted from research and development during World War II and afterwards were【C1】______to the prosperity of the nation in the second half of the 20th century. Those innovations, upon which virtually all aspects of【C2】______society now depend, were possible because the United States then【C3】______the world in mathematics and science education. Today, however, despite increasing demand for workers with strong skills in mathematics and science, the【C4】______of degrees awarded in science, math, and engineering are decreasing.
    The decline in degree production in what are called the STEM disciplines (science, technology, engineering, and math)seems to be【C5】______related to the comparatively weak performance by US schoolchildren on international assessments of math and science. Many students entering college have weak skills in mathematics. According to the 2005 report of the Business-Higher Education Forum, 22 percent of college freshmen must take remedial (补习的)math【C6】______, and less than half of the students who plan to major in science or engineering【C7】______complete a major in those fields.
    The result has been a decrease in the number of American college graduates who have the skills,【C8】______in mathematics, to power a workforce that can keep the country at the forefront (前沿)of innovation and maintain its standard of living. With the【C9】______performance of American students in math and science has come increased competition from students from other countries that have strongly supported education in these areas. Many more students earn【C10】______in the STEM disciplines in developing countries than in the United States.
A)accelerating I)especially
B)actually J)future
C)closely K)led
D)contemporary L)met
E)courses M)procedures
F)critical N)proportions
G)declining O)spheres
H)degrees
【C1】
选项
答案F
解析 空格处前面是be动词，后面是介词to，故该词应为形容词，且能和to构成某种搭配。根据上下文语境可知，美国在二战期间及之后的时期的研究和发展所带来的创新对于其20世纪后50年中的繁荣发展应该是很重要的。形容词critical意为“至关重要的”，与文意相符。备选的形容词中，contemporary“当代的”和future“未来的”都不符合句意，且与to不构成搭配，故均排除。
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