题干

已知椭圆
x
2
a
2
+
y
2
b
2
=1(a>b>0)上的点到右焦点F的最小距离是 2 ﹣1,F到上顶点的距离为 2 ,点C(m,0)是线段OF上的一个动点.
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    Obama, Lady Gaga and Steve Jobs—what do they have in common? They are, of course, all Americans. And according to a survey by social networking site baidu. com, they all best illustrate(举例说明) the word “cool”.

    But just what does it mean to say someone is “cool”? Most would answer that it is something to do with being independent-minded and not following the crowd.

    Yale University art professor Robert Farris Thompson says that the term “cool” goes back to 15th century West African philosophy. “Cool” relates to ideas of grace under pressure.

    “In Africa,” he writes, “coolness is a positive quality which combines calmness, silence, and life.”

    The modern idea of “cool” developed largely in the US in the period after World War II. “Post-war 'cool' was in part an expression of war-weariness (厌战情绪), . . . it went against the strict social rules of the time,” write sociologists Dick Pountain and David Robins in Cool Rules: Anatomy of an Attitude.

    But it was the American actor James Dean who became the symbol for “cool” in the hugely successful 1955 movie Rebel without a Cause. Dean plays a tough guy who disobeys his parents and the authorities. He always gets the girl, smokes cigarettes, wears a leather jacket and beats up bullies. In the movie, Dean showed what “cool” would mean to American young people for the next 60 years.

    Today the focus of “cool” has changed to athletics (体育运动) stars. Often in movies about schools, students gain popularity on the athletics field more than in the classroom. This can be seen quite clearly in movies like Varsity Blues and John Tucker Must Die.

    But many teenagers also think being smart is cool. Chess and other thinking games have been becoming more popular in schools.

    “Call it the Harry Potterization of America—a time when being smart is the new cool,” writes journalist Joe Sunnen.

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又见秋风起

    ①深秋,渐起的冷意使整个校园花草萧条,生命全无。飒飒秋风中,两株奇崛的古槐硬是挺着虬枝到现在,也再无还手之力地落个满地枯枝败叶。冬天未到,我早已佝偻了腰背,像一只僵硬的蚂蚁踟蹰着。

    ②“丁零零……”清脆响亮的电话铃声响起,一看,是妈。

    ③“天气转冷了,你衣服够吗?棉被厚不厚?天气预报说明天有冷空气,下降10度,不够的话我明天给你拿来……”妈絮絮叨叨地说了一大通。

    ④“够了够了,你不用专门跑一趟了。”妈仍不放心地嘱咐了好几遍,才不舍地放下电话。

    ⑤从她的声音里我似乎能感受到她急促的鼻息,耳边萦回的叮咛撩动我隐约的遥想。我仿佛能看到此刻的她正拿起亲手为我新织的毛衣,铺平又叠起。其实远在异乡工作的我每年秋寒时都会第一时间接到父母打来的电话,那些琐碎的唠叨如时光深处的温暖烙印,为我拂去秋寒,融化冬雪。

    ⑥记得还在读师范时,秋寒刚刚到达的一个大清早。我懒洋洋地拿着饭碗,不情愿地走出寝室。被迎面的寒风一吹,我浑身瑟缩,慢吞吞地朝食堂走去。

    ⑦下了楼,发现门口有两个熟悉的身影。走近了,却发现是父亲和母亲。父亲穿着那件洗得泛白的中山装,袖口的卷边已经磨破。他通红的脸上直冒热气,一双粗粝厚实的大手正凑到嘴边哈气。母亲的头发上沾满了细碎晶莹的冰霜,脖子里土黄的围巾衬得她的脸色有些泛黄。她把双手叉进棉裤口袋里暖手,肥大的棉裤使她瘦小的身躯看起来更加单薄。他们的身旁支着一辆28寸的加重自行车,一边的脚踏上扎着一只鼓鼓囊囊的蛇皮袋,车子不堪重负似乎将要倾倒。

    ⑧“你们怎么来了?”我赶忙把母亲拉到一旁的桂花树下低声询问。父亲在一旁笑盈盈地望着我,眼里却盛满疑惑。他们哪里知道,他们这身乡下人的打扮在这县城里有多扎眼,我真怕会有同学看见。

    ⑨“这不你爸昨晚看天气预报说今天有冷空气,怕你冻着,一大早就赶来了。”母亲边解释边伸手去解蛇皮袋,里面装满了我的衣裤鞋袜。“还有你最爱吃的土酱炒冬笋肉片,天冷要多吃点!”母亲又从帆布包里掏出一个保温杯塞到我怀里。

    ⑩我一边应声一边催促他们赶紧回去,父亲便骑上车带着母亲回家。我一看表:才7点整,而他们却空肚子骑了15里路,把掌心的温暖捎带到了我的手里。我愣愣地站在那儿,嗓子眼儿被哽住。捧着温热的保温杯,我在桂花树下泪流满面。父母亲每天夜晚为我看天气预报,牵挂着他们一辈子也不放心的儿子,而我却忘记了问候一声右手还植着钢板的父亲和惧寒的母亲。

    ⑪想起“气象先生”宋英杰接受电视采访时说的一个故事。

    ⑫家住北京的他看完电视后,寝不安席。他拨响了远在武汉的儿子电话。告诉儿子寒流快到武汉,嘱咐儿子注意保暖,要不就寄点衣物过去。儿子在那一头不耐烦地说:“知道了,知道了。”挂了电话。他准备再拨时,哈尔滨的母亲打来电话,关切地说:“北京今天要变天,你加衣服没有?”他来不及答话,结结实实地打了个喷嚏。母亲急了,唠唠叨叨地说了半天“责备”的话。她问母亲那边天气,母亲说:“雪还在下呢。”

    ⑬他愣住了,他深深牵挂的,是北风尚未抵达的武汉,却忘记了北风起处的哈尔滨和自己的母亲。

    ⑭为什么人间最温暖的亲情都是自上而下的?在秋风起时,父母常常惦记着远方的儿女,而我们却忘记了去关心下独守家中年迈的双亲。父母永远是我们心底最温暖的灯,照亮黑暗,驱逐寒冷。而生活在融融爱意中的我们是否能用及时的问候抚慰他们,让他们的心远离寒冬?