閱讀理解

　　Visual impairment(視覺障礙)carries with it a reduced or restricted ability to travel through one’s physical and social environment until adequate orientation and mobility skills have been established. Because observational skills are more limited，self-control within the immediate surroundings is limited. The visually impaired person is less able to anticipate hazardous situations or obstacles to avoid.

　　Orientation refers to the mental map one has of one’s surroundings and to the relationship between self and that environment. The mental map is best generated by moving through the environment and piecing together relationships，object by object，in an organized approach. With little or no visual feedback to reinforce this mental map，a visually impaired person must rely on memory for key landmarks and other clues. Landmarks and clues enable visually impaired persons to affirm their position in Space.

　　Mobility，on the other hand，is the ability to travel safely and efficiently from one point to another within one’s physical and social environment. Good orientation skills are necessary to good mobility skills. Once visually impaired students learn to travel safely as pedestrians(行人)they also need to learn to use public transportation to become as independent as possible.

　　To meet the expanding needs and demands of the visually impaired person，there is a sequence of instruction that begins during the preschool years and may continue after high school. Many visually impaired children lack adequate concepts regarding time and space or objects and events in their environment. During the early years much attention is focused on the development of some fundamental concepts，such as inside or outside，in front of or behind，fast or slow，movement of traffic，the variety or intersections，elevators or escalators，and so forth. These concepts are essential to safe，efficient travel through familiar and unfamiliar settings，first within buildings，then in residential neighborhoods，and finally in business communities.

　　56. How can we increase the visually impaired person’s ability to travel through his physical and social environment?

　　A. By helping him develop adequate orientation and mobility skills.

　　B. By teaching him to learn observational skills.

　　C. By warning him of hazardous situations or obstacles.

　　D. By improving his visual ability.

　　57. The visually impaired person’s position in space .

　　A. is not determined by memory but by physical landmarks and clues

　　B. is located in relation to other items in his mental map

　　C. enables him to construct the mental map

　　D. reinforces the mental map of his surroundings

　　58. Mobility skills which the visually impaired person is learning refer to the ability .

　　A. to travel as a dependent tourist

　　B. to travel as a pedestrian and a passenger

　　C. to travel as a pedestrian with a company

　　D. to travel within the safe physical and social environment

　　59. In the passage，the author insists that .

　　A. visually impaired children go to school for survival

　　B. the needs and demands of visually impaired children expand

　　C. visually impaired children acquire the fundamental concepts for safe mobility

　　D. preschool children receive the instruction in the concepts of time and space or objects and events

　　60. What is the author mainly talking about in the passage?

　　A. Visual impairment and memory.

　　B. The visually impaired person’s physical and social environment.

　　C. Mental development of the visually impaired person.

　　D. Orientation and mobility of the visually impaired person.

　　答案解析在下一頁。。。

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