最新安徽省中考数学试题及试题答案优秀名师资料.doc

2010年安徽省中考数学试题及试题答案2010年安徽省中考数学试题及答案 一(选择题:(本大题10小题，每小题4分，满分40分) 1. 在这四个数中，既不是正数也不是负数的是( ) ,1,0,1,2A) B)0 C)1 D)2 ,132. 计算的结果正确的是( ) (2x),x2233A) B) C) D) 8x6x8x6x003. 如图，直线?，?1,55，?2,65， ll12则?3为( ) 0000A)50. B)55 C)60 D)65 4. 2010年一季度，全国城镇新增就业人数为289万人，用科学记数法表示289万正确的是 ( ) 76 54A)2.89×10. B)2.89×10.C)2.89×10. D)2.89×10. 5. 如图，下列四个几何体中，其主视图、左视图、俯视图中只有两个相同的是 6. 某企业15月分利润的变化情况图所示，以下说法与图中反映的信息相符的是( ) A)12月分利润的增长快于23月分利润的增长 B)14月分利润的极差于15月分利润的极差不同 C)15月分利润的的众数是130万元 D)15月分利润的的中位数为120万元 22bk7. 若二次函数配方后为则、y,x，bx，5y,(x,2)，k的值分别为 ( ) A)0.5 B)0.1 C)4.5 D)4.1 08. 如图，?O过点B 、C。圆心O在等腰直角?ABC的内部，?BAC,90，OA,1，BC,6，则?O的半径为( ) 10231332A)B)C)D) 1 9. 下面两个多位数1248624、6248624，都是按照如下方法得到的:将第一位数字乘以2，若积为一位数，将其写在第2位上，若积为两位数，则将其个位数字写在第2位。对第2位数字再进行如上操作得到第3位数字，后面的每一位数字都是由前一位数字进行如上操作得到的。当第1位数字是3时，仍按如上操作得到一个多位数，则这个多位数前100位的所有数字之和是( ) A)495 B)497 C)501 D)503 m/s10. 甲、乙两个准备在一段长为1200米的笔直公路上进行跑步，甲、乙跑步的速度分别为4和m/s6，起跑前乙在起点，甲在乙前面100米处，若同时起跑，则两人从起跑至其中一人先到达终点的过程中，甲、乙两之间的距离与时间的函数图象是 y(m)t(s)( ) 填空题(本大题4小题，每小题5分，满分20分) 3，6,2,11. 计算:_. ,x，4,2,12. 不等式组的解集是_. ,3x,4,8,013. 如图，?ABC内接于?O，AC是?O的直径，?ACB,50，点D是BAC上一点，则?D,_ 14. 如图，AD是?ABC的边BC上的高，由下列条件中的某一个就能推出?ABC是等腰三角形的是_。(把所有正确答案的序号都填写在横线上) ?BAD,?ACD ?BAD,?CAD，?AB+BD,AC+CD ?AB-BD,AC-CD 三，(本大题共2小题，每小题8分，共16分) 15. 先化简，再求值: 2a,a，144a,1,(1)，其中 2a,a,a116. 若河岸的两边平行，河宽为900米，一只船由河岸的A处2 0沿直线方向开往对岸的B处，AB与河岸的夹角是60，船的速度为5米/秒，求船从A到B处约需时间几分。(参考数据:) 3,1.7四(本大题共2小题，每小题8分，共16分) k17. 点P(1，)在反比例函数的图象上，它关于轴的对称点在一次函数的图象上，y,yay,2x，4x求此反比例函数的解析式。 ,ABCD18.在小正方形组成的15×15的网络中，四边形ABCD和四边形的位置如图所示。 0?现把四边形ABCD绕D点按顺时针方向旋转90，画出相应的图形， ABCD1111,ABCD?若四边形ABCD平移后，与四边形成轴对称，写出满足要求的一种平移方法，并画出平移后的图形 ABCD2222五(本大题共2小题，每小题10分，共20分) 2m19(在国家下身的宏观调控下，某市的商品房成交价由今年3月分的14000元/下降到5月分的126002m元/ 3 ?问4、5两月平均每月降价的百分率是多少,(参考数据:) 0.9,0.95?如果房价继续回落，按此降价的百分率，你预测到7月分该市的商品房成交均价是否会跌破10000元2/,请说明理由。 m20.如图，AD?FE，点B、C在AD上，?1,?2，BF,BC ?求证:四边形BCEF是菱形 ?若AB,BC,CD，求证:?ACF?BDE 21.上海世博会门票价格如下表所示: 某旅行社准备了1300元，全部用来购买指定日普通票和平日优惠票，且每种至少买一张。 ?有多少种购票方案,列举所有可能结果; ?如果从上述方案中任意选中一种方案购票，求恰好选到11张门票的概率。 22.春节期间某水库养殖场为适应市场需求，连续用20天时间，采用每天降低水位以减少捕捞成本的办法，对水库中某种鲜鱼进行捕捞、销售。 1,x,20九(1)班数学建模兴趣小组根据调查，整理出第天(且为整数)的捕捞与销售的相关信息xx如下: ?在此期间该养殖场每天的捕捞量与前一末的捕捞量相比是如何变化的, yxx?假定该养殖场每天捕捞和销售的鲜鱼没有损失，且能在当天全部售出，求第天的收入(元)与(天)之间的函数关系式,(当天收入,日销售额日捕捞成本) yyx试说明?中的函数随的变化情况，并指出在第几天取得最大值，最大值是多少, kk,1ba,b,caABCc23.如图，已知?ABC?，相似比为()，且?ABC的三边长分别为、()，1114 ?的三边长分别为、。 aABCbc111111a,kc?若，求证:; c,a1b?若，试给出符合条件的一对?ABC和?，使得、和a、进都是正整数，并ac,aABCcbc1111111加以说明; k,2?若，是否存在?ABC和?使得,请说明理由。 b,ac,bABC111115 6 7 (英文版 ) easily blame, to prevent the broken window effect. Supervise the leading cadres to play an exemplary role, take the lead in the strict implementation of the < code > and < rule >, lead to safeguard the solemnity and authority of the party discipline, ensure that the party discipline and the laws and regulations for implementation in place. Throughout the discipline in the daily supervision and management , strengthen supervision and inspection, from the thorough investigation of violations of discipline behavior. Strengthen to key areas, key departments and key projects as well as the masses reflect the concentration of the units and departments for supervision. - strengthening supervision, discipline inspection and supervision of cadres to set an example for compliance with the < code > and < rule > is a man must be hexyl, blacksmith needs its own hardware. Discipline inspection organs as the executor of the party discipline, and supervisor of the defenders, for its supervision must be more strictly, discipline inspection and supervision of cadres to firmly establish the awareness of Party Constitution, sense of discipline and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the regulations of the rule of law, strengthen supervision and accept the supervision of the firmness and consciousness, do comply with < > and < >. To firmly establish the discipline must first be disciplined, the supervisor will be subject to the 8 supervision of "concept, and consciously safeguard and implement party compasses party, take the lead in practicing" three strict real strict, so loyal, clean, play. To be good at learning, the Constitution and the < code > as morality, politics and brought to fruition; to implement < >, do not want to, dare not, not with disciplinary ruler to supervision; to discipline a ruler, often the control inspection, and consciously in the ideological red line to draw the row Ming Good accumulation is indeed the bottom line, so that the heart has fear, said to have quit, the line has ended. Attached: indifferent to heart, calmly to the table in our life, there are many unpredictable things will happen, some good, some bad things, we cannot control is powerless to stop, but with time, you will find in life sometimes turns out to be not good, some bad things finally turned out to be a good thing, but then we muddy however did not know, this is the life teach us things. 1, life can be complex, can also be simple. Want simple life of precipitation, to have enough time to reflect, to make Become more perfect. Life is the most important thing is not to win, but the struggle; not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain life, give up on themselves is not a coward, but the wise answers; not disillusioned after the heart, such as ashes, but experience the storm after the enlightenment; not unrewarding perfunctorily, but calm attitude of life of unrestrained self-confidence. Plain living, there is no noise noisy, no earthly troubles, more did not fill in the discontent of desire, 9 some just a calm, a calm. 3, memory of heart will not good things to erase the, life is a When no movie, pain is a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not give up the abandoned, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4, a thing figured is heaven, think impassability is hell. Since the living, to live better. Sometimes we because of too narrow-minded, too care around the chores and penny wise and pound foolish, not worth the candle. Some things to attract trouble and worry, completely depends on how we look at and deal with it. Don't always take everything back to things, and don't get into a blind alley, don't want to face, don't be narrow-minded. Poke to care, is a kind of open-minded, a free and easy. 5, I am not afraid of others behind me a knife, I afraid to look back and see stab me, is my intention to treat people; I am not afraid of the truth to tell the best friend, I'm afraid he turned to it as a joke to tell don't 6, when we are in a positive frame of mind, you will find many good things; and when we are in a negative state of mind, you will find many depressed things; life happy and worry, all is you of life attitude, optimistic, good luck; loss of sink, Eritrea company. When you are in adversity, may wish to change a point of view to think everything over to the good Think, because good mentality decided the fate of the! 7, people are tired, rest; heart tired, calm. Grow up, mature, this society read. Tired and sad, squat down, to their a hug. Because the world no one can 10 sympathize with you, have mercy on you. You cry, tears is your own; you pain, no one can understand. Then you only tears to smile. 8, each people have youth, Each youth are a story, the life of the world never gets easier, I want what, wish the world all know, as has been the same; now want anything, for fear that others know, or like to lose the same. 9, the heart move, everything in the world is followed by birth, Rangrang, important thing is often the most difficult to open one's mouth, because words will reduce its importance; to let strangers people care about your life in the good things, the original is not easy 10, do not blame, do not laugh at who, also don't envy who. Like a person is a kind of feeling, not like a person is true. The truth is easy to explain, I feel Is unspeakable. The best travel life is that you in a strange place found a long lost touched. 11, happy life not in the bustling in, and in the peace of mind; no matter how many grievances, how uncomfortable, and ultimately to heal themselves or their own, others may got you to comfort, but never know your heart is how wanjianchuanxin. 12, ma'am, like a movie, learn to appreciate, learn to be grateful, learn tolerance, and goodness, helping others. Instead of accusing the society, as into one; and an exception is better to give than to what 13, don't envy him A sum of, don't lose your life and the life, respectively is: the former is a we experienced cannot escape in a day finally will last minute, while the latter is our persistent, we want to cherish the memory of those people and things. 11 14, learn to smile, learn to strong, the world you know so many people, so many people and you are, you cannot change also can't let everyone like you, so also do not want to do. Life is too short to go crazy to love to go to waste, to chase the dream to regret. 15, when temper, a blessing to go. A wounding elegant people, the key is to control their own emotions. With the mouth is the most stupid behavior. A control negative emotions than a can take a city more powerful water flow slow, language is expensive. People spent two years of time to learn to speak, but to spend a few years time to shut up. That is a kind of ability, that is a kind of wisdom. 16, life is not perfect, sometimes, growth is not a cry, not an eyeful of tears, there is no trace of emotion, there is no gleam of hope, no desire, no action, no static, there is only one kind of downward sinking feeling, sink A murky? 6? 7? 6? 7 sink? 6? 7? 6? 7 toward the bottom of the sink. 17, in some way, do not go, you will not know the other side scenery is beautiful. To you is not good, you do not mind too much, no one has an obligation to you; you learn knowledge, is you have weapons, you can start from scratch, but not unarmed; how do you treat people, does not represent how others treat you, if cannot see through this point, only inviting worry. 18, time is like a sponge in the water, as long as you are willing to squeeze, the total water is still there. Every life, after the ups and downs The best test of live, to life, survival and continuation, do not stop the struggle in the joys and sorrows of life on the road, so that different soul to bear life beat, acceptance of 12 suffering. 19, indifferent to heart, calmly in table, elegant and comfortable life, do not take what is so important. The pursuit will be disappointed; to be alive, you will have trouble. Life is the most afraid of what all want to care about, but also what all grasp is not firm, without scenery, separated populations, such as not to desire, all docked in the fate of the end. Why is too rigid, the natural, to go stay not to live, let go of obsession, revel is 20, if the fate of the broken Hopes of sailing, please don't despair, the coast is still, if the fate of the withered petals of the beautiful, please do not sink, the spring is still, life will always be endless trouble, please don't helpless, because they are still alive, is still a dream, the sun still, we still. Lost, keep memories; to get, must work to; but the most important is good to cherish their own. 21, life, select the complex, is to choose the pain; choose a simple, is choose to be happy. The complex world like a Significance of pride. Hope is the ornate palace, outside people admiring the magnificent, living in the deep knowledge of living it to pay the price. Simple world as a simple log cabin outside ridiculed shabby, the heart is willing to go live to know the joy. Suffering and joy is their own choice. 22, learn how to use a single powerful heart, let the past be the past, let the future come. Life is really the end of the end of an eagle is flying wings, life is constantly pursuit. Don't miss to regret, don't wait for old just miss. Time to return, seize every moment, again painstakingly again tired also Those struggling to fly. 23, life could not Yimapingchuan, even flat 13 pavement, inevitably there will be a few pieces of roadblocks. Some of the rocks around the past, while others have to move it out. Just move others put the stone is very easy, because the stone from the appearance we can discern; difficult to myself to move away the heart of stone head. Leave time to spend with her, often reflect my heart, so as to remove your heart of stone. 24, everything does not have to be demanding, come to, everything does not have to care about, over the past; failing to do not frown, laugh it laugh. Results Don't demand, do to; life is a simple, calm and peaceful. Always not to choose their own path and regret, life is like a train, the scenery and then the United States will retreat, the passage of time and encounter will eventually drifting further and further away, before is always himself. 25, everyone has a weakness, weakness is true humanity. That has no weakness, a shallow person. That people think there is no weakness, mostly false. Life has shortcomings, there are shortcomings is the real life. That no one regret, or childish or numbness or Self deception. It is in tolerance of weakness and so on to accept, people live happily. Hello, everyone! I am a party member. The title of my speech is: < study and implement the party's two laws, doing practical play highway. 2015 October 18, the Central Committee of the Communist Party of China promulgated the implementation of the < the probity of the Communist Party of China self-discipline criterion > and < Chinese Communist Party 14 discipline and punishment regulations. We Heyuan male passers-by to respond positively to the call of the Central Committee of the party, earnestly organize the study "party two regulations", truly grasp the essence and gist, and in their respective positions, to hold the bottom line of the discipline, build a strong ideological line of defense, with the courage to play, the courage to fight tough and fearless spirit, at the crucial moment well to complete the task, with practical action to test the study and implement effect Because of discipline in the * * * * * * * * * * * story. Here, let me to cast a brick to attract jade, speak about our highway. Highway line section of the road surface transformation project, last year "towards the country seized" will be seized one of the items. To complete this arduous task, as a project management office director Comrade, keep in mind from the Co