|
One of the most complex communication systems---certainly among invertebrates---is that of honeybees. For maximum foraging efficiency,workers must convey to one another the location of good food sources, which may change frequently as various flowers bloom or new fields of
flowers are located. How do honeybees communicate? The problem was studied in the 1940's by Austrian zoologist Karl von Frisch. By carefully watching individual bees when they returned to the vertical face of an open hive, von Frisch discovered that other bees gather around the bee that has returned. The returned bee then goes through a “dance.” Based on his experiments, von Frisch proposed that the dance indicates the location of food. If the source is relatively close---less than about 50 meters---the bee moves rapidly sideways in tight circles
(the“round dance”), causing the others to become excited. Often the dancer regurgitates
some nectar that the others taste. The workers then leave the hive and begin foraging nearby. Although the round dance does not indicate direction, tasting the nectar is likely to help the bees identify a scent to fly toward.
235. The word proposed in the passage is closest in meaning to
A.supported
B.discussed
C.intended
D.hypothesized
answer: D , 但是hypothesize 是假设的意思，propose是“打算；建议”， 我选C, intend: "打算，想要"
Each of the social and humanistic branches of learning apart from sociology seems to have its own distinctive subject matter.  olitical science, for example, deals with the ways in which
society allocates the right to use legitimate power. Sociology, however, has not yet had a special or distinctive subject matter clearly associated with it. The subject matter should be something concrete, specific, and easily identified, something that is not claimed as the central object of study of some other established discipline.
The most cursory glance at the easily identified major institutions, social products, and
social processes reveals that there are indeed such unassigned or unclaimed subjects. olitics and economics are spoken for, and so in large measure are literature, language, education, and business. But there remain the family, crime, social classes, ethnic and racial groups, the urban and the rural community. No one of these major components of society has become the distinctive object of study for a specialized branch of learning,
49. The phrase spoken for in the passage is closest in meaning to
A.debated
B pronounced differently
C combined
D claimed
answer: D ,为什么不是B?
请各位高手们帮帮我！！
[此贴子已经被作者于2005-4-4 9:48:43编辑过] | 
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2005-4-4 09:23:00
楼主
