大学六级-1380及答案解析.doc
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1、大学六级-1380 及答案解析(总分:632.00,做题时间:90 分钟)一、Part Writing(总题数:1,分数:106.00)1.目前在中国,校园安全事故时有发生2这种现象造成了恶劣的影响3应该如何杜绝这种现象(分数:106.00)_二、Part Reading Compr(总题数:1,分数:70.00)Instant Expert: Mental HealthWhen the heart breaks down, it beats irregularly or not at all. A bone can chip or snap. But when the complex net
2、work of neurons in our brain fails to function normally, the result can be a near-endless variety and combinations of mental illnesses.Its normal to sometimes be sad, happy, anxious, confused, forgetful or fearful, but when a persons emotions, thoughts or behavior frequently trouble them, or disrupt
3、 their lives, they may be suffering from mental illness. According to the World Health Organization (WHO), about 450 million people worldwide are affected by mental, neurological or behavioral problems at any time.However, determining that someone has a mental illness, and which one, is one of the c
4、hallenges psychiatrists face. One effort to catalogue these afflictions is the “psychiatrists bible“, the Diagnostic and Statistical Manual of Mental Disorders-the latest edition fills nearly one thousand pages and lists over 400 disorders.Diversity of disordersAmong the best known and most common m
5、ental illnesses is depression-a prolonged, weakening sad- ness, sometimes accompanied by a feeling of hopelessness and thoughts of suicide. Seasonal affective disorder is a type of depression that affects some people in the autumn and winter and is triggered by the disappearing hours of daylight and
6、 colder temperatures. In bipolar disorder (双极性障碍), a person changes from depression to episodes of excessive enthusiasm where they are unrealistically confident in their abilities.Personality disorders are behavior patterns that are destructive to the person themselves or those around them. In disso
7、ciative disorders, someone experiences a sudden change in consciousness or their concept of self. In dissociative amnesia, for example, the result is a loss of part or all of their memories. Samson, the Biblical strongman, may have suffered from the earliest recorded case of antisocial personality d
8、isorder.Anxiety disorders are characterized by powerful feelings of stress and physical signs of fear-sweating, a racing heart-due to some cue in the environment, or for no obvious reason at all. These include post-traumatic (创伤后的) stress disorder, panic disorder, obsessive compulsive disorder, ange
9、r disorders, hypochondria, social phobia, and other phobias including agoraphobia (open spaces), claustrophobia (small spaces), acrophobia (heights), and arachnophobia (spiders).Attention-deficit hyperactivity disorder is among the most common mental illnesses diagnosed in children, affecting their
10、ability to focus and associated with high levels of activity and impulsiveness.Eating disorders involve an unhealthy relationship to food. A sufferer of anorexia nervosa (神经性厌食症) will strive for thinness to the point of starvation, due to a distorted perception of their bodies and dissatisfaction in
11、 their sense of control. They engage in cycles of gorging(feed greedily) themselves and then purging through vomiting or the use of some drugs. Muscle dysmorphia is sometimes thought of as a “reverse“ form of anorexia that affects bodybuilders. Sufferers constantly worry that they are too weak despi
12、te being extremely strong.Enormous costMental illnesses are quite common. As many as one in five people are thought to suffer from mental illness, at least temporarily, each year. Suicide-often the result of untreated mental illness-claims 873000 lives around the world each year. The economic costs
13、of these conditions are also enormous and growing. According to the WHO, depression is expected to account for more lost years of healthy life than any other disease by 2030, except for HIV/AIDS.Even so, the mentally ill face disgrace and discrimination. Studies find people are reluctant to admit th
14、ey have at mental illness, to seek help, or to stick with treatment. Others are eager to reject the label of a mental illness. For example, some people with autism characterized by difficulty communicating or socializing insist the condition is not a disorder that needs to be cured, but just part of
15、 normal human “neurodiversity“.Underlying causesHistorically, some symptoms of mental illness, such as irregular behaviour and hearing voices, have been taken as evidence of heavenly communication or possession of magical power. More recently, brain scans have directly linked these conditions with c
16、hanges in levels of neurotransmitters chemicals that convey messages across neurons-or alterations in the number or structure of neurons in different brain areas. For instance, people suffering from depression often display lowered levels of the neurotransmitter serotonin.In a few cases, the immedia
17、te cause of the malfunction has been identified. Alzheimers disease, a major source of dementia and memory loss ill the elderly, is caused by the accumulation of protein plaques which choke neurons in the brain.Some infectious diseases can also develop into a mental illness. Untreated HIV infection
18、can cause dementia, as can the uncontrolled replication of the microbe that causes syphilis. Borrelia burgdorferi-the Lyme disease bacterium, responsible for malaria (fever transmitted by mosquitoes), are also thought capable of triggering a variety of mental illnesses.In many cases the precise caus
19、e is unclear and experts suspect that many different factors are involved. One striking example is schizophrenia (精神分裂症), distinguished by psychosis. This is a distorted view of reality, which may include hallucinations (illusion of seeing or hearing something not actually present), hearing voices,
20、delusions, and paranoia. The chance that identical twins both develop schizophrenia is much higher than that for fraternal twins or siblings, arguing for the strong role of inherited genes. But scientists are accumulating a growing list of other risk factors that predispose people to this condition,
21、 including exposure to famine conditions before birth, certain infections or exposure to lead. The season of their birth also seems important-birth in winter or early spring increases the risk, as does an older father and, controversially, child abuse.Genes are also thought to influence many other m
22、ental health problems, including: anorexia, autism, Alzheimers disease and bipolar disorder. Besides, the womb environment, exposure to X-rays, being held in detention centres and having an overactive immune system are also some influencing factors.Some researchers believe that smoking cigarettes an
23、d taking recreational drugs like LSD, ecstasy and cannabis, may elevate a users risk of mental illnesses, including schizophrenia, although it can be difficult to assess whether drug use is a cause or effect. And careful use of LSD and ecstasy might even help treat psychiatric problems.Psychiatric t
24、reatmentsPsychiatric treatment for mental illness can take many forms. In psychotherapy, the patient is encouraged to recognize their problems, understand what may trigger undesirable behavior, and develop coping strategies.Many medications are also available to treat some of the most severe symptom
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- 大学 1380 答案 解析 DOC
