Albert Einstein is said to have been asked by a student, “what finding helped you most when you were __71__ the theory of relativity?” Einstein replied without __72__ moment’s hesitation. “Finding how to __73__ about the problem.”

　　The same __74__ is told about Sir Isaac Newton and __75__ other scientists. We have no proof __76__ any of these well-known conversations __77__ took place, but we are prepared to __78__ that they did, and, if so, that the __79__ was the same one Einstein gave, __80__ this is the “way scientists work __81__ science progresses.”

　　Scientists usually work toward models of the process of structure they are studying. __82__ we have models of the structure __83__ the universe and of the atom, models of the process __84__ which the genetic (遺傳的) pattern is passed from one building block of life to __85__ models of the economic system and __86__ on. Some models are mathematical, but a __87__ does not have to have equations (方程) or even diagrams; the __88__ requirement is no doubt that it __89__ an insight (洞察) into the relationships that determine __90__ something works as it does or how it is put together.

　　71. A) designing B) inventing C) revealing D) developing

　　72. A) a B) the C) an D) some

　　73. A) know B) learn C) think D) argue

　　74. A) event B) news C) story D) information

　　75. A) any B) more C) few D) several

　　76. A) that B) since C) which D) as

　　77. A) naturally B) actually C) eventually D) regularly

　　78. A) forget B) consider C) believe D) realize

　　79. A) question B) answer C) conversation D) topic

　　80. A) although B) because C) unless D) once

　　81. A) while B) or C) and D) but

　　82. A) Otherwise B) Nevertheless C) Still D) Thus

　　83. A) of B) in C) with D) over

　　84. A) for B) by C) on D) to

　　85. A) either B) other C) both D) another

　　86. A) so B) later C) further D) straight

　　87. A) structure B) pattern C) process D) model

　　88. A) urgent B) important C) original D) unnecessary

　　89. A) provide B) will provide C) provided D) is provided

　　90. A) when B) what C) why D) whether

　　答案：

　　71-75 DACCD 76-80 ABCBB 81-85 CDABD 86-90 ADBAC

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