根据以下内容,回答下列各题。 Are you aware that you actually possess six senses? The sixth
A.the efficiency of our muscles
B.the normal breathing function
C.directing our muscles intelligently
D.the work of only our involuntary muscles
A.the efficiency of our muscles
B.the normal breathing function
C.directing our muscles intelligently
D.the work of only our involuntary muscles
Muscles are stringly bundles of fibers varying from one five-thousandth of an inch to about three inches. They have three unique characteristics, they can become shorter and thicker; they can stretch; and they can retract to their original positions. Under a high-powered microscope, muscle tissue is seen as long, slender cells with a grainy texture like wood.
More than half of a person‘s body is composed of muscle fibers, most of which are involuntary—in other words, work without conscious direction. The voluntary muscles, those that we move consciously to perform. particular actions, number more than five hundred. Women have only 60 to 70 percent as much muscle as men for their body mass. That is why an average woman can’t lift as much, throw as far, or hit as hard as an average man.
According to the selection, the muscular sense is responsible for ______.
A.the efficiency of our muscles
B.the normal breathing function
C.directing our muscles intelligently
D.the work of only our involuntary muscles
Intelligent use of the muscles means that ________.A.one always knows what his muscles are doing
B.one performs simple actions whithout working
C.one‘s muscles are used only to the extent necessary for each action they perform
D.one improves muscular action consciously
Muscles are unique fibers because, they can ________.A.contract
B.stretch
C.retract
D.do all of the above
Under a microscope, muscle cells appear to be _______.A.textured like wood
B.colored like wood
C.smooth and red
D.short and thick
According to the selection more than half of a person‘s body is composed of ______.A.voluntary muscles
B.involuntary muscles
C.muscle fibers
D.sensory nerves
It seems that the information society_____(37)the quantity of information available to the members of a society by revolutionizing the ways of using and exchanging information. But such a view as a_____(38)analysis based on the quantity of information supplied by various forms of the mass media. A different_____(39)is possible when the actual amount of information_____(40)by the user is taken into account. In fact, the more information_____(41)throughout the entire society, the wider the gap becomes between "information haves" and "information have-nots," leading to digital divide.
According to recent studies, digital divide has been caused by three major_____(42): class, sex, and generation. In terms of class, digital divide exists among different types of workers and between the upper and middle classes and the lower class. With_____(43)to sex, digital divide exists between men and women. The greatest gap, however, is between the Net-generation, _____(44)with personal computers and the Internet, and the older generation,_____(45)to an industrial society.
A.accustomed习惯的 通常的
B.acquired 取得
C.assembly 集合
D.attribute 把…归于
E.champions 冠军
F.elements 原理,元素
G.expands 扩大
H.familiar 熟悉的
I.flows 流动
J.fundamentally 从根本上地
K.interpretation 解释
L.passive 被动的
M.regard 把..看作,与…有关
N.respectively 分别地
O.superficial 表面的,肤浅的
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