Are you aware that you actually possess six senses？ The sixth is a muscular sense responsible for directing your muscles intelligently to the exact extent necessary for each action you perform. For example， when you reach for an object， the sensory nerves linking the muscles to the brain stop your hand at the correct spot. This automatic perception of the position of your muscles in relation to the object is your muscular sense in action. 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
Are you aware that you actually possess six senses？ The sixth is a muscular sense responsible for directing your muscles intelligently to the exact extent necessary for each action you perform. For example， when you reach for an object， the sensory nerves linking the muscles to the brain stop your hand at the correct spot.
This automatic perception of the position of your muscles in relation to the object is your muscular sense in action. 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
题目解答
答案
解析
考查要点：本题主要考查学生对文章细节的理解能力，需要根据原文信息准确匹配选项。
解题思路：
- 定位关键句：每个问题均需回到原文对应段落，找到相关描述。
- 排除干扰项：注意选项中可能存在的近义词干扰或局部信息断章取义。
- 逻辑对应：结合上下文理解抽象概念（如“muscular sense”）的具体作用。
第1题
关键句：第一段首句指出“第六感是肌肉感，负责智能地指导肌肉完成动作”。
选项分析：
- C选项“directing our muscles intelligently”直接对应原文定义，其他选项（如A的“效率”、D的“仅自主肌肉”）未提及。
第2题
关键句：第一段“muscular sense stops your hand at the exact extent necessary”强调“恰到好处的使用”。
选项分析：
- C选项“仅使用完成动作所需的程度”符合文意，A、B、D均偏离“精确控制”的核心。
第3题
关键句：第二段明确肌肉有三个特性：缩短变厚、伸展、缩回。
选项分析：
- D选项“以上全部”正确，因三个特性均被原文列举。
第4题
关键句：第二段“muscle cells have a grainy texture like wood”直接描述形态。
选项分析：
- A选项“纹理如木头”与原文一致，其他选项（如B的颜色、C的平滑）无依据。
第5题
关键句：第二段“More than half of a person’s body is composed of muscle fibers”。
选项分析：
- C选项“muscle fibers”直接对应原文，A、B混淆“voluntary/involuntary”类型，D未提及。