阅读下面的文章，完成后面的题。
                                                                                      远处，那一盏灯
         ①许多年前，我固执地以为自己已经超越了同龄孩子的思想，我希望摆脱一切约束而自由地生活。但那个冬天难忘的经历让我有了改变。
         ②一个冬日的早晨，我又和母亲吵了架，心里充满了不满和委屈。我独自离开了家，漫无目的地到旷野中流浪，我感觉自己正走向一个自由快乐的天地。
         ③我不断向前走，饥饿和寒冷却不断地向我侵袭过来。整整一天的跋涉之后，天不知不觉暗了下来。寒冬腊月的风是那样的冰冷刺骨，“呜呜”地在山谷里作响，萧瑟的草木在冰天雪地里哀鸣。我感觉到了一种从未有过的无助和孤寂。我开始哭，一种愧疚的情绪同时包围了我。事实上，并没有人给我什么大不了的伤害，我只是因为早上起床时，不肯穿母亲新做的那件看上去十分臃肿的蓝花袄，而母亲只是满怀委屈地责备我不理解家庭的境况和大人的心思。
        ④一顿大哭之后，我的心里豁然亮堂了起来。这时候，我倒是真的想到了母亲的艰辛和不易。她独自养活一家老小，每天在我进入梦乡之前，她那双像松树皮一样粗糙的手就不曾闲过。白天已经在农田里劳累一天了，有时干着活就开始打瞌睡，头缓缓地垂下去，垂下去，然后再极力地抬起来，用力摇动一下；可是过不久多久，又开始重复那个动作……每当这个时候，母亲的身边总是放一盆冷水和一条毛巾，就连天寒地冻的严冬也不例外，她总是说，擦把脸就精神了！
        ⑤我走着走着就想到母亲了。她的手到了冬天总是开裂子，那些裂子又因为白天的不停劳作而张开血口子，痛得钻心彻骨！每当这样的夜晚，懂事的大姐就会走上前去，用村里那个土医生配的冻疮膏给母亲涂抹。这时的大姐，每抹一下就关切地看一下母亲的脸，生怕会弄痛了母亲，而母亲回望大姐的眼神也是慈祥而柔和的。这让我产生了强烈的嫉妒，以至我每次和母亲发生争执时总是冲她喊：“你是偏心眼了，你就是只知道疼大姐和小弟！”
        ⑥天很黑，周围也模糊。我一边想，一边自责，一边流泪。我显得疲惫不堪，同时我迷路了……突然之间，我望见了远处有点亮光。哦，那是一盏灯！我发疯似地冲向那盏灯……山野顿时平静，天空微微泛白，树木不再狰狞，小路也变得清晰起来。啊，我竟然听到了母亲带着哭声的沙哑的呼唤。虽然隔得远了，声音是那样的微弱，可听在我的耳中却格外的清晰，格外的亲切。
        ⑦微弱的灯光下，我看到母亲的脸上挂满了泪水。那一瞬间，我注意到母亲看上去十分狼狈，原来母亲一脚踩空，滚到山坡下去了。我猛然想起，母亲八岁那年害过一场病，她的视力很弱，即使是在白天，也只能看到那短距离的东西。我的泪水“哗哗”地往下淌。
        ⑧那个冬夜，母亲手里的那盏灯照亮了一段崎岖的山路，也照亮了一个十二岁孩子的心路，并且在以后困难的日子里，我还常常想起——那盏泛着橘黄色光芒的马蹄灯！

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

A migraine(偏头痛)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”(诱因)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(大气压)can act as triggers. But researchers say they haven’t got 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 migraines. 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 migraines. 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.