Our bodies are wonderfully skilful at maintaining balance. When the temperature jumps，we sweat to cool down. When our blood pressure falls，our hearts pound to compensate. As it turned out，though，our natural state is not a steady one. Researchers are finding that everything from blood pressure to brain function varies rhythmically with the cycles of sun，moon and seasons. And their insights are yielding new strategies for keeping away such common killers as heart disease and cancer. Only one doctor in 20 has a good knowledge of the growing field of “chronotherapeutics”，the strategic use of time(chronos)in medicine. But according to a new American Medical Association poll，three out of four are eager to change that.“The field is exploding”，says Michael Smolensky.“Doctors used to look at us like‘What spaceship did you guys get off?’ Now they’re thirsty to know more.”

　　In medical school，most doctors learn that people with chronic conditions should take their medicine at steady rates.“It’s a terrible way to treat disease.”says Dr. Richard Martin. For example，asthmatics(氣喘患者)are most likely to suffer during the night. Yet most patients strive to keep a constant level of medicine in their blood day and night，whether by breathing in on an inhaler(吸入器)four times a day or taking a pill each morning and evening. In recent studies，researchers have found that a large mid-afternoon dose of a bronchodilator(支氣管擴張劑)can be as safe as several small doses，and better for preventing nighttime attacks.

　　If the night belongs to asthma，the dawn belongs to high blood pressure and heart disease. Heart attacks are twice as common at 9 a.m. as at 11 p. m.. Part of the reason is that our blood pressure fails predictably at night，then peaks as we start to work for the day.“Doctors know that”，says Dr. Henry Black of Chicago’s Medical Center，“but until now，we haven’t been able to do anything about it.”Most blood pressure drugs provide 18 to 20 hours of relief. But because they’re taken in the morning，they’re least effective when most needed.“You take your pill at 7 and it’s working by 9，”says Dr. William White of the University of Connecticut Health Center，“but by that time you’ve gone through the worst four hours of the day with no protection.”Bedtime dosing would prevent that lapse，but it would also push blood pressure to dangerously low levels during the night.

　　61. According to the passage，how do human bodies maintain balance?

　　A. They adjust themselves timely in line with their physical conditions.

　　B. People increase or lower the body temperature by sweating.

　　C. People’s hearts pound to compensate when the blood pressure goes up.

　　D. Both B and C.

　　62. Researchers are finding that .

　　A. heart disease and cancer are the most common killers of human beings

　　B. blood pressure and brain function are decided by cycles of sun，moon and seasons

　　C. the functions of human bodies have much to do with nature

　　D. any change in human bodies goes systematically with changes in the environment

　　63. According to the author，it is best for asthmatics to take their medicines .

　　A. at steady rates B. each morning and evening

　　C. when the disease occurs D. at mid-afternoon

　　64. Which of the following statements is NOT true?

　　A. Doctors know more about chronotherapeutics than before.

　　B. Doctors in the U.S. used to be thirsty to know more about the new medical field.

　　C. The researchers’ insights are providing new strategies to prevent common killers.

　　D. The strategic use of time in medicine attracts more attention in the medical circle in the U.S..

　　65. The suggested title for this passage might be .

　　A. Medicine is Everything B. Treatment is Everything

　　C. Timing is Everything D. Prevention is Everything

    考前須知：申碩考試時間安排 ♦準(zhǔn)考證下載入口 ♦英語寫作模板匯總 ♦歷年同等學(xué)力真題

    入門須知：什么是在職研究生 ♦在職讀研六大方式 ♦在職研報考條件 ♦讀在職研有用嗎