B

　　　 The Wal-Mart in Cleburne, Texas, was crowded. People were waiting in long lines at checkout counters to pay for small things that would be next-morning treasures under someone’s Christmas tree.

　　　 The woman standing in cashier Jeffrey Kandt’s line seemed to be living on the edge of subsistence(生计). Her clothes were worn and her hands were those of a person who’d worked hard for what she had. She held a single item in her arms as she patiently waited to move to the front of the line - a Sony CD player. She had saved all year for this. With tax, the total would be close to $ 220.

　　　 As the woman got close to the cashier, she suddenly shouted, “Where’s my money? All of my money fro my son’s gift! Oh no!”

　　　 “Why my line?” Kandt thought as he watched the poor woman searching through her clothes. He was going to have to call his manager to avoid the sale but it would mean a long wait for the customers behind her. “I am going to go home late tonight,” Kandt thought.

　　　 Then an amazing thing happened. At the back of the line, a man took out his wallet, pulled out $100 and passed it forward. As the cash moved up the line, a twen5ty-dollar bill was added here, and a ten-dollar bill was added there. When the collection finally reached the registewr, Kandt counted $ 220.

　　　 Strangers had fulfilled a poor woman’s Christmas wish.

　　　 The poor in his line at the Wal-Mart in Cleburne, Texas, had come together on Christmas Eve, 2002.

60．According to the passage, the woman’s Christmas wish was to ______.

　　　 A．collect $ 220 for her family　　 B．buy her son a CD player as a gift

　　　 C．buy enough food for her family　　 D．organize a big party for her son

61．Which of the following statements is TRUE about Jeffrey Kandt when the woman couldn’t find her money?

　　　 A．He was impatient and wanted to go home.

　　　 B．He wanted to see whether the woman had money or not.

　　　 C．He wanted the woman to stand in another line.

　　　 D．He didn’t think about the customers waiting behind the woman.

62．What does paragraph 5 mainly talk about?

　　　 A．a description of a man standing in the line　　　　　　

　　　 B．the cashier, Jeffery Kandt

　　　 C．the collection of $ 220

　　　 D．a reason why the strangers collected he money

63．What can we learn from the passage?

　　　 A．The woman collected money by herself.

　　　 B．The woman seemed to be poor, but in fact had lots of money.

　　　 C．Strangers in the line volunteered to help the woman.

　　　 D．The woman had never ay money.

A

The cost of medical care in the United States is very high. More time and money that doctors spend on their medical education is probably one reason for this problem.

A visit to a doctor’s office costs from 15 to 50 dollars. It is almost impossible for people to pay for the medical care they need .Many people in the United States think that doctors are overpaid. Most doctors, however, disagree. They say that they were required to study medicine for a log time Tuition for many years of medical education costs a lot of money. Doctor say that it is necessary for most medical students to borrow money from bank to pay their tuition. Because they must be repaid to the bank, young doctors need to receive a lot of money for their work. So, they charge people high prices for the medical care.

Therefore, it is impossible that the high cost of medical care in America is unnecessary, because high tuition is one cause of high costs. One way to lower cost would be to have medical school that are free or have low tuition.

56 The word “tuition” in the passage probably refers to_______.

A. teaching the students　 B. studying the courses　

C payment for education　 D living at school

57.The reason for the high medical cost told in the passage is that_____.

　 A. tuition in the medical school is high　 B the price of medical is high

　 C doctors are overpaid　　　　　　　　 D doctors must pay money to the banks

58. One way to lower the cost of medical care would be ______.

　 A. not to see a doctor

B. to pay doctors less money

　 C to let medical students have free or partly free medical education

D to forbid doctors to ask their patients for too much money

59The main idea of the article is that____.

　 A. a visit to a doctor’s office may cost as much as﹩15to﹩50 in the United States

B the cost of medical care is the main reason for the high cost in the United State

C medical care in the United States costs a lot of money because doctors want to be rich

D the high cost of tuition in medical school is one reason for the high cost of medical care in America

22.(本小题满分12分)

设函数，已知和为的极值点

(1)　　　　　　　　　　　 求a和b的值；

(2)　　　　　　　　　　　 讨论的单调性；

(3)　　　　　　　　　　　 设，试比较与的大小。

双鸭山市第三十一中学2009-2010 (上)月考考试

21．(本小题满分12分)

_{已知椭圆的中心在原点，焦点在x轴上，一个顶点为B(0,-1)，且其右焦点到直线的距离为3.}

_{(1)求椭圆的方程；}

_{(2)是否存在斜率为，且过定点Q(0,)的直线l，使l与椭圆交于两个不同的点M、N，且|BN|=|BM|？若存在，求出直线l的方程，若不存在，请说明理由。}

20．(本小题满分12分)

在四棱锥中，平面PAD平面ABCD，AB//CD，是等边三角形。已知BD = 2AD = 8，AB = 2DC = 4

_{(1)设M为PC上的一点，证明：平面MBD总垂直平面PAD；}

(2)求四棱锥P--ABCD的体积。

19. (本小题满分12分)

已知角A、B、C是的三个内角，若向量，，且

(1)求的值；　 (2)求_{的最大值。}