单选题 There is a growing body of evidence that suggests that our brain processes information in at least two major systems. The image system appears to be associated with the right hemisphere of the brain. This hemisphere seems to be specialized to process visual and auditory imagery, spatial representation, pure melodic thought, fantasy, and the emotional components of consciousness. Imagery allows us to continue to process information when we are not actively looking at or listening to new stimuli. It reproduces the sounds or sights of the past, enriching our thoughts, dreams, or fantasies with a sense of "actuality" or context. As a coding system, imagery operates by what is called "parallel" processing, e. g. , we imagine the face of a friend in one instantaneous configuration.
The lexical system is largely coordinated through the left hemisphere of the brain, and its chief functions include language and grammatical organization, abstract conceptualization and reasoning. This verbal or linguistic system functions sequentially; it takes time for a sentence to run its course so it can be understood.
The lexical dimension is especially efficient for integrating diverse phenomena under one label or formula that allows extremely rapid retrieval of stored information (memories) later.
Both imagery and lexical systems seem essential for the highest levels of thought. It is possible, however, that the immediacy of television precludes our more active integration of images and words. We need time to replay mentally material just witnessed and also to link pictures and sounds to word labels that make for the most efficient kind of storage and retrieval So rapidly does television material come at us that it defies the capacities of our brain to store much of it unless we actively turn our attention from the set and engage in some kind of mental rehearsal. Only in the instant "replay" of sports programming does the medium itself consciously abet the human requirement for reduplication.
Contrast this with the situation of reading. You are in control of the pace. You can reread a sentence, turn back to an earlier page and take the time to piece together combinations of images and words. As you read you are also likely on occasion to drift away into more extended private images and thoughts about the material.
In effect, you are engaging in a more creative act of imagination and perhaps also in the forming of new combinations of words and images. Reading seems, therefore, harder work than watching television but ultimately more rewarding because it enhances your own imaginative capacities.
We're not so naive as to believe that television can be eliminated from the household, as some suggest. Rather, we see the necessity for encouraging producers to free themselves from the assumption that the rapid-paced, quick-cut format, whether directed at children or adults, is a necessity.

单选题 The writer's general attitude towards television in learning is ______.
A. negative B. objective C. impressive D. suggestive

单选题 Which of the following is NOT associated with the function of the right hemisphere of the brain?
A. Writing music and forming mental picture.
B. Processing sounds and sights.
C. Making our thoughts, dreams and fantasies more vivid.
D. Producing new ideas and thoughts.

单选题 What can we learn about the lexical system from the text?
A. It has something to do with a code system and memorizing activity.
B. It processes spatial representation and stored information.
C. It helps us to look at or listen to new stimuli efficiently and sequentially.
D. It plays an important part in language learning and reasoning.

单选题 Contrasting watching television with the situation of reading, we can infer that ______.
A. reading sometimes needs you to wander away into extended private images and thoughts about material from television
B. television helps us immediately bring images and words together into a whole
C. reading seems ultimately to satisfy us by strengthening our own imaginative capacities
D. television material comes at us so rapidly that it improves the capacities of our brain to store much of it

单选题 Which of the following best summarizes the text?
A. Reading exercises our brain more than watching television but television is a necessity.
B. If we want to make full use of our brain, we have to understand different functions of the right and left hemisphere.
C. By analyzing imagery and lexical systems, the writer thinks it is more beneficial to us to read than to watch television.
D. Both imagery and lexical systems, which are associated with language learning, seem essential for the highest levels of thought.