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【简答题】

Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.
As the horizons of science have expanded, two main groups of scientists have emerged. One is the pure scientist; the other, the applied scientist.
The pure or theoretical scientist does 1 research in order to understand the basic laws of nature that govern our world. The applied scientist 2 this knowledge to practical problems. Neither is more important than the other, however, for the two groups are very much related.
Sometimes, however, the applied scientist finds the "problems" for the theoretical scientist to work on. Let’s take a 3 problem of the aircraft industry: heat-resistant metals. Many of the metals and alloys which perform 4 in a car cannot be used in a jet-propelled plane. New alloys must be used, because the jet engine operates at a much higher temperature than an automobile engine. The engine must 5 temperatures as high as 2,600 degrees Fahrenheit, so aircraft designers had to turn to the research metallurgist (冶金学家) for the 6 of metals and alloys that would do the job in jet-propelled planes.
Dividing scientists into two groups—pure and applied—is only one broad way of classifying them, 7 . When scientific knowledge was very limited, there was no need for men to 8 . Today, with a great body of scientific knowledge, scientists specialize in many different fields. Within each field, there is even further subdivision (细分). And with finer and finer subdivisions, the various sciences have become more and more interrelated until no one branch is 9 independent of the others. Many new 10 —geophysics (地球物理学) and biochemistry, for example—have resulted from combining the knowledge of two or more sciences.
A. particular I. satisfactorily
B. however J. withdraw
C. deregulation K. development
D. adapts L. terrific
E. entirely M. original
F. adopts N. specialize
G. withstand O. respectively
H. specialties Directions:Answer Sheet 2

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参考答案:
举一反三

【单选题】2011年诺贝尔物理学奖的获得者通过研究发现()。

A.
宇宙膨胀不断减速,而且逐渐变冷
B.
宇宙膨胀不断减速,而且逐渐变热
C.
宇宙膨胀不断加速,而且逐渐变冷
D.
宇宙膨胀不断加速,而且逐渐变热

【单选题】下述关于物理学中质点的说法,正确的是()

A.
只要体积小就可以视为质点
B.
研究月球绕地球运动时,月球不能视为质点
C.
物体各部分运动情况相同,在研究其运动规律时,可以视为质点
D.
研究一端固定并可绕该端转动的木杆可看成质点
相关题目:
【单选题】2011年诺贝尔物理学奖的获得者通过研究发现()。
A.
宇宙膨胀不断减速,而且逐渐变冷
B.
宇宙膨胀不断减速,而且逐渐变热
C.
宇宙膨胀不断加速,而且逐渐变冷
D.
宇宙膨胀不断加速,而且逐渐变热
【单选题】下述关于物理学中质点的说法,正确的是()
A.
只要体积小就可以视为质点
B.
研究月球绕地球运动时,月球不能视为质点
C.
物体各部分运动情况相同,在研究其运动规律时,可以视为质点
D.
研究一端固定并可绕该端转动的木杆可看成质点
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