It has been necessary to refer
repeatedly to the .effects of the two world wars in promoting all kind of
innovation. It should be{{U}} (1) {{/U}}also that technological
innovations have{{U}} (2) {{/U}}the character of war itself by the{{U}}
(3) {{/U}}of new mechanical and chemical device. One weapon developed
during World War Ⅱ{{U}} (4) {{/U}}a special mention. The{{U}} (5)
{{/U}}of rocket propulsions was well known earlier, and its possibilities as
a{{U}} (6) {{/U}}of achieving speeds sufficient to escape from the
Earth's gravitational pull had been{{U}} (7) {{/U}}by the Russian and
the American scientists. The latter built experimental liquid-fuelled rockets in
1926.{{U}} (8) {{/U}}, a group of German and Romanian pioneers was
working{{U}} (9) {{/U}}the same lines and in the 1930s, it was this
team that developed a rocket{{U}} (10) {{/U}}of delivering a warhead
hundreds of miles away. Reaching a height of over 100 miles, the V-2 rocket{{U}}
(11) {{/U}}the beginning of the Space Age, and members of its design
team were{{U}} (12) {{/U}}in both the Soviet and United States space
programs after the war. Technology had a tremendous social{{U}}
(13) {{/U}}in the period 1900 - 1945. The automobile and electric
power,{{U}} (14) {{/U}}, radically changed both the scale and the
quality of 20th-century life,{{U}} (15) {{/U}}a process of rapid
urbanization and a virtual revolution{{U}} (16) {{/U}}living through
mass production of household goods and{{U}} (17) {{/U}}
The rapid development of the airplane, the cinema, and radio made the
world seem suddenly smaller and more{{U}} (18) {{/U}}. The development
of many products of the chemical industry further transformed the life of most
people. In the years{{U}} (19) {{/U}}1945 the constructive and creative
opportunities of modern technology could be{{U}} (20) {{/U}}, although
the process has not been without its problems.
【答案解析】本句主语是its possibilities，谓语动词用了过去完成时；point out the possibilities指出它的可能性，正符合逻辑。其余选项都不能以possibilities做逻辑宾语：A．taken over接管，取代；B．handed over交给；C．carried out执行，实施。
【答案解析】本题考对上下文的关系的理解，作者以汽车、电力等具体例子论证段首句的观点，所以应该选D．for instance(例如)。其余选项：A．on the other hand另一方面；B．as a result结果是，因此；C．on the contrary相反。
【正确答案】
C
【答案解析】本题考的是语义关系加近义词辨析。The automobile and electric power是本句的主语，也是后面状语的逻辑主语，只有C．promoting(促进，助长)与其搭配，是正确答案。其余三项：A．encouraging鼓励；B．urging敦促，鼓励；D．assisting帮助，协助。
【正确答案】
B
【答案解析】本题考的是习惯搭配。表示在某一方面要用介词in，a virtual revolution in living即“一场名副其实的生活革命”，所以B是正确答案。
【答案解析】该题考的是对本文内容的理解和近义词辨析。该句的意思是：在 1945年以后的年代里……。从本文按时间顺序论述的写作特点以及本句的内容来看，这里应该讲的是二战后对现代科学技术的应用，而D．following在此是做后置定语的现在分词，1945是其宾语，the years following l945即“1945 年以后的年代”，正符合文意。其余三项：A．preceding意思是“在……之前”；B．previous意思是“以前舶，在先的”；C．subsequent“随后的，后来的”是形容词，虽然符合文意，但只能做前置定语。