What is intelligence We all know we have some, and some people seem to have more than others. There are various types of intelligence.
The most obvious categories that people fit into are those who are good with numbers and those who are good with words. Some of us are neither while others are both. A third category of intelligence is related to interpreting visual (视沉的)information. A common way of measuring intelligence is through the use of “IQ" or intelligence tests. These tests include many types of questions to measure different types of intelligence, but the three most important are numerical, verbal (文字的) and visual.
Most simple intelligence tests combine all three types of questions in equal numbers, so that everyone has the same chances, whether he or she is better at one type or another. The IQ is an average and says nothing about special abilities.
What factors affect the results of the IQ tests7 The number of the correct answ
A. The number of questions people can answer in the given time.
B. The time each person spends' on the test.
C. Mental speed.
D. People's persistence.
Passage Four
We all know that the normal human daily cycle of activity is of some 7-8 hours’ sleep alternating with some 16-17 hours’ wakefulness and that, broadly s peaking, the sleep normally coincides with the hours of darkness. Our present concern is with how easily and to what extent this cycle can he modified.
The question is no mere academic one. The ease, for example, with which people can change from working in the day to winking at night is a question of growing importance in industry where automation calls for round-the-clock working of machines. It normally takes from five days to one week for a person to adapt to a reversed routine of sleep end wakefulness, sleeping during the day end working at night. Unfortunately, it is often the case in industry that shifts are changed every week; a person may work from 12 midnight to 8 a.m. one week, 8 a.m. to 4 p.m. the next, and 4 p. m. to 12 midnight the third and so on. This means that no s
A. Body temperature may serve as an indication of a worker' s performance.
B. The selection of a number of permanent night shift workers has proved to be the best solution to problems of the round-the-clock working system.
C. Taking body temperature at regular intervals can show how a person adapts to the changes of routine.
D. Disturbed sleep occurs less frequently among those on permanent night or day shifts.
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