题目内容
（请给出正确答案）
The brain is capable of ignoring pain message if __________to concentrate on other activities.
A． allowing it
B． it will allow
C． allowed it
D． it is allowed
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更多“The brain is capable of ignori…”相关的问题
A．it allowed
B．is it allowed
C．allowed
D．allowed it
The best statement of the main idea of this passage is that ______.
A. human brains differ considerably
B. the brain a person is born with is important in determining his intelligence
C. environment is crucial in determining a person's intelligence
D. a person who is handicapped environmentally will never attain the level of intelligence of which he is capable
The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate foster (收养) homes. Peter was reared by parents of low intelligence in an isolated community with poor educational opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark's IQ was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level.
This selection can be titled ______.
A．Measuring Your Intelligence
B．Intelligence and Environment
C．The Case of Peter and Mark
D．how the Brain Influences Intelligence
Aging is not a disease, but as a person passes maturity, the cells of the body and the【39】they form. do not function as well as they【40】in childhood and adolescence (青春期). The body provides less【41】against disease and is more prone【42】accident.
A number of related cause may【43】aging. Some cells of the body have a fairly long life, but they are not【44】when they die. As a person ages,【45】of brain cells and muscle cells decrease,【46】body cells die and are replaced by new cells. In an aging person the【47】cells may not be as viable (能生存的) or as capable【48】growth as those of a young person.
Another【49】in aging may be changes within the cells【50】. Some of the protein chemicals in cells are known【51】with age and become less elastic. This is why the skin of old people wrinkles and【52】. This is also the reason old people【53】in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as RNA, store and【54】information that the cell need. Aging may affect this【55】and change the information carrying molecules so that they do not transmit the information as well.
(66)
A．use to
B．be used to
C．used to
D．had
A. taking in
B. taking on
C. taking off
D. taking to
A.trust
B.credit
C.convince
D.believe
