Question

A migraine（偏頭痛）can cause disabling pain. People may not feel back to normal for hours or even days. Migraines are most common among young adults and middle-aged people. In the United States, about eighteen percent of women and six percent of men report having migraines.

People who suffer from migraines can find that different “triggers（誘因）”in different people may get a headache started. Stress can act as a trigger. So can chocolate in some people. Many migraine sufferers say hot weather and low barometric pressure（大氣壓）can act as triggers. But researchers say they do not have much scientific evidence of that — until now.

 In a new study, a team examined the medical records of seven thousand hospital patients. The patients had visited the emergency room at Beth Israel Deaconess Medical Center in Boston, Massachusetts, because of a headache. More than two thousand of them had been found to have a migraine.

 The team then compared those records to weather conditions in the twenty-four hours before the hospital visits. For every increase of five degrees centigrade in air temperature, the patients had a seven and one-half percent higher risk of migraine. Decreases in barometric pressure two to three days before the visit also appeared to trigger headaches.

 The researchers found no evidence that air pollution influenced headaches. But they could not rule out the possibility of a smaller effect.

 A separate study has found that age, gender and where a person has extra body fat may affect the risk of migraine. It found that overweight people between the ages of twenty and fifty-five may have a higher risk. On average, those who were larger around the middle were more likely to have migraines than those of the same age with smaller waistlines.

 The study involved twenty-two thousand people. It was led by Lee Peterlin. She says early results suggest that losing weight in the stomach area may help younger people who experience migraines, especially women.

41. From the first paragraph, we can infer a migraine can ________.

A. make people unable to walk

B. prevent people acting normally

C. cause people to leave home for days

D. get people to suffer from mental disorder

42. The underlined word “that” in Paragraph 2 refers to ________.

A. chocolate acting as a trigger

B. stress acting as a trigger

C. hot weather and low barometric pressure acting as triggers

D. high air pressure acting as a trigger

43. According to the passage, headaches are influenced least by ________.

A. body weight                  B. barometric pressure

C. air temperature                  D. air pollution

44. In the opinion of Lee Peterlin, a person who has a migraine should ________.

A. avoid gathering fat in the stomach area

B. eat more sweet food every day

C. stay warm in good weather

D. keep away from noisy places

45. Which of the following is TRUE according to the passage?

A. Overweight people may have a lower risk of migraines.

B. Weather is linked to migraines.

C. Migraines are a headache for many people.

D. Women suffer more migraines than men do.

Answer 1

這是一篇有關健康話題的文章。偏頭痛給人帶來很大的痛苦，那么為什么會引起它的發(fā)作呢？壓力、巧克力等都能引發(fā)偏頭痛。最新的研究表明，天氣和肥胖也會造成偏頭痛。

41. 【解析】選B。推理判斷題。從第一段中的“A migraine can cause disabling pain. People may not feel back to normal for hours or even days. ”可知，偏頭痛會使一個人感到喪失能力，并且有的人需要幾個小時甚至幾天才能恢復正常，所以答案為B。

42. 【解析】選C。詞義猜測題。根據(jù)第二段中的“. . . hot weather and low barometric pressure can act as triggers. ”可知that指的是炎熱的天氣和低氣壓也可以引起偏頭痛，所以答案為C。

43. 【解析】選D。細節(jié)理解題。根據(jù)第五段中的“The researchers found no evidence that air pollution influenced headaches. ”可知研究人員沒有找到空氣污染會影響頭痛的證據(jù)，所以答案為D。

44. 【解析】選A。細節(jié)理解題。由最后一段中的It was led by Lee Peterlin. She says early results suggest that losing weight in the stomach area may help younger people who experience migraines, especially women. 可知腰部減肥會有助于減輕偏頭痛癥狀，所以要盡量減少脂肪的攝入量，故選A。

45.【解析】選B。細節(jié)理解題。由第二段可知天氣與偏頭痛之間有聯(lián)系，所以B項符合文章意思。