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2.4
[39]. Crying was adaptive for our ancestors because____.(1分)
A
A) it helped them get sufficient nutrition (B) it elicited short episodes of sleep(C) it delayed new pregnancies(D) it helped the infants learn to speak.
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he Chinese national football coach is______ to comment on the performance of his team.(1分)
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21. No one knows why we sleep, but it’s certain that we need to. People who are prevented from sleeping begin to suffer obvious effect after a few days --- they think less clearly, and they fall asleep during the working hours. Some may have hallucinations (幻觉).There are no rules about sleep. Generally speaking, grown-ups sleep about seven and a half hours each night and probably more than 60 percent get between seven and eight hours. But perhaps eight percent are quite happy with five hours or less, and four percent or so find that they want ten hours or more. If you feel all right, you’re probably getting enough sleep. The important thing is not to worry how much other people get --- their needs may be different. Exercise doesn’t seem to increase the need for sleep, office workers, for example, sleep for about as long as people doing physically active work.Children sleep more than grown-ups --- perhaps fourteen to eighteen hours soon after birth, going down to grown-up levels by early teen-age. Sleep patterns also tend to be different in the elderly, who may sleep less at night than they did when younger. They find sleep getting more broken, and often make it a rule to sleep during the daytime.(10分)21.1 According to the passage, some people are unable to think clearly because ________.(2分)A. they have hallucinationsB. they sleep for too many hoursC. they don’t have enough sleep D. they feel sleepy during the working hours
21.Special education, as its name suggests, is a specialized branch of education. Special educators teach those students who have physical, cognitive, language, learning, sensory, and/or emotional abilities that deviate from those of the general population. Special educators provide instruction specifically tailored to meet individualized needs, making education available to students who otherwise would have limited access to education. In 2001, special education in the United States was serving over five million students.Although federally mandated special education is relatively new in the United States, students with disabilities have been present in every era and in every society. Historical records have consistently documented the most severe disabilities — those that transcend task and setting. Itard's description of the wild boy of Aveyron documents a variety of behaviors consistent with both mental retardation (智力迟钝) and behavioral disorders. Reports about abnormal behavior in the Nineteenth-century also describe issues about severe mental retardation or autism(自闭症). Milder forms of disability became apparent only after the advent of universal public education. When literacy became a goal for all children, teachers began observing disabilities specific to task and setting — that is, less severe disabilities. After decades of research and legislation, special education now provides services to students with varying degrees and forms of disabilities, including mental retardation, emotional disturbance, learning disabilities, speech-language disabilities, impaired hearing and deafness, low vision and blindness, autism, traumatic brain injury, other health impairments, and severe and multiple disabilities.21.1 Which of the following can NOT be considered as “severe disabilities”?A.Disabilities specific to task and setting.B.Mental retardation.C.Behavioral disorders.D.Autism.
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Mr. Johnson____ the opportunity to speak to the president.
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