大学英语六级改革适用（阅读）模拟题2019年(10)
(总分710,考试时间130分钟)
会计期间Part III Reading Comprehension
Section C
Memory appears to be stored in veral parts of the limbic(边缘的)system of the brain, and any condition that interferes with the function of this system can cau amnesia. Aging is a frequent cau. As humans advance in age, the heart's action, as well as the walls of blood vesls, change. It is thought that too little blood reaching brain cells, and sometimes the lack of certain nutrients, caus the death of small portions of the brain. Old memories and new ones are kept in different portions of the brain, and many older people can recall events that took place years before while being unable to remember what they ate at their last meal. An inability to store or learn new information may also occur with advanced age. Several degenerative(退化的)dias of old age can cau profound amnesia. Primarily in
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older men, transient(暂时的)global amnesia caus vere loss of memory for minutes or hours. This is a progressive condition about which little can be done.
Alcoholism is another leading cau of amnesia. Many heavy drinkers cannot recall the events of the time when they were intoxicated. In alcoholism of long duration, the gradual deterioration of brain cells takes place, and memory can become permanently confud. Injuries to the head often result in amnesia for the time just before and just after an accident. As the injury heals, memory gradually returns. Tumors or other growth in the brain that affect the limbic system can also cau amnesia, when treatment of the growth is successful, the amnesia is cured.
Classic amnesia may be described as the condition of an otherwi healthy person who "wakes up" in a strange place unable to recall his name, where he came from, or where he is going. It is interesting to note that such a person, however, retains knowledge of language and social customs. This kind of amnesia is probably due to emotional stress and is called hysterical amnesia. It occurs when some event is en as so shameful or w
hen problems become so overwhelming that the person concerned is unable to face reality. Instead, complete amnesia develops. Hysterical amnesia is treated through psychotherapy and sometimes the administration of drugs such as sodium amobarbital, which caus a person to talk freely. Clues to the past may appear under the dation, and the psychotherapist can u the to prod(促使)the memory of the patient.
1. According to the passage, the forming of amnesia is most cloly related to_____.
A. old age
B. u of drugs
C. damage of brain
肉丝炒面的做法D. lack of nutrients
2. Even doctors can do little about_____.
A. amnesia caud by brain cells lacking blood
三颗枸杞豆
B. old people's inability to store or learn new information
C. old people's amnesia caud by degenerative dias
D. loss of memory for minutes or longer time
3. Memory may never return when_____.
A. one develops long-term alcoholism
B. one gets injured to the head
C. one has tumors in the brain
D. one gets affected in the limbic system
4. It can be inferred from the passage that hysterical amnesia may _____.
A. develop **plete amnesia if not cured
B. be derived from psychological problems
C. result in the patient's shameful emotion
D. cau the loss of language ability
5. When a patient is under the administration of drugs, _____.
A. he cooperates fully with the psychotherapist校园招聘流程
B. his memory will be recovered soon
C. his emotional stress will be eliminated
于永波
D. he talks about the past without rervations
Women who drank three or more cups of coffee a day were 30 percent less likely to have memory decline at age 65 than who who drank one cup or less daily. And the benefit incread with age. Women over age 80 who drank three or more cups of coffee a day were about 70 percent less likely to have memory decline than tho who drank one cup or less, the rearchers said.
Caffeinated tea had the same effect in the women, the study found, although more was needed to get the same caffeine boost. "Count roughly two cups of tea for a cup of coffee," said study leader Karen Ritchie of INSERM, the French National Institute for Health and Medical Rearch.
But the rearchers didn't find a similarly protective effect in men, although other studies have found a benefit to males.
How might caffeine help ward off cognitive decline? "It is a cognitive stimulant," said Ritchie. It also helps to reduce levels of the protein called beta amyloid in the brain, she said, "who accumulation is responsible for Alzheimer's dia but which also occurs in normal aging."
Ritchie said she wasn't sure why men in the study didn't benefit from caffeine. "Our hypothesis is that either women metabolize caffeine differently than men, or there may be an interaction of the caffeine with the x hormones, the estrogen-progesterone balance," she said.
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The French study confirms previous rearch, said William Scott, professor of medicine at the University of Miami Miller School of Medicine, who has rearched caffeine's beneficial effects against Parkinson's dia, also a neurodegenerative disorder.
