B

Unless we spend money to spot and prevent asteroids (小行星) now，one might crash into Earth and destroy life as we know it，say some scientists.?

   Asteroids are bigger versions of the meteoroids(流星)that race across the night sky. Most orbit the sun far from Earth and don't threaten us. But there are also thousands whose orbits put them on a collision course with Earth.?

   Buy $ 50 million worth of new telescopes right now. Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one，the scientists say，we'll have a way to change its course.?

   Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn't be cheap.?

  Is it worth it? Two things experts consider when judging any risk are: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500，000 years. Sounds pretty rare-but if one did fall，it would be the end of the world. “If we don't take care of these big asteroids，they'll take care of us，”says one scientist. “It's that simple.”?

   The cure，though，might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday(毁灭性的) rocks than from a great nuclear fleet set against them，” said a New York Times article.

1. What does the passage say about asteroids and meteoroids?

  [ A ]. They are heavenly bodies different in composition.

  [ B ].They are heavenly bodies similar in nature.

  [ C ].There are more asteroids than meteoroids.

  [ D ].Asteroids are more mysterious than meteoroids.

2. We can conclude from the passage that_____ .

  [ A ].while pushing asteroids off course nuclear weapons would destroy the world

  [ B ].asteroids racing across the night sky are likely to hit Earth in the near future

  [ C ].the worry about asteroids can be left to future generations since it is unlikely to happen in our lifetime

  [ D ].workable solutions still have to be found to prevent a collision of asteroids with Earth.

3. Which of the following best describes the author's tone in this pass age?

  [ A ]. Optimistic.  [ B ]. Critical.  [ C ]. Objective.  [ D ]. Arbitrary.

A mouse looked through a hole in the wall to see the farmer and his wife opening a package； what food might it contain? He was astonished to discover that it was a mouse trap!
Running to the farmyard，the mouse shouted，warning everyone，“There is a mouse trap in the house，there is a mouse trap in the house．”The chicken，with her head high，glared at the mouse and said，“Shut up．Little Ugly．This is a great concern to you，but it has nothing to do with me：I can’t be troubled by it．”
The mouse turned to the pig and told him．“There is a mouse trap in the house．”“I am so sorry，Mr Mouse，”said the pig sympathetically，“but there is nothing I can do about it but pray；you are always in my prayers．”
The mouse turned to the cow，who said，“A mouse trap，am I in great danger，huh?”
Now the mouse had to face the farmer’s mouse trap alone．
That very night a sound was heard through the house，like that of a mouse trap catching its prey．The farmer’wife rushed to see what was caught．In the darkness，she did not see it was a big poisonous snake whose tail the trap had caught．The snake bit the farmer’s wife．The farmer rushed her to the hospital．She returned home with a fever．It is said that drinking fresh chicken soup will help treat fever，so the farmer took his sharp knife to the farmyard for the soup’s main ingredient．His wife’s sickness continued，so friends and neighbors came to sit with her around the clock．To feed them，the farmer killed the pig．The farmer’s wife did not get well，in fact，she died，and so many people came for her funeral．The farmer had the cow killed to provide for all of them to eat．
So next time when someone is facing a problem，don’t say that it has nothing to do with you．
【小题1】We could see from the passage that the mouse was          ．

A mouse looked through a hole in the wall to see the farmer and his wife opening a package. What food might it contain? He was astonished to discover that it was a mouse trap!
　　Running to the farmyard, the mouse shouted, warning, “There is a mouse trap in the house; there is a mouse trap in the house.” The chicken with her head high, said, “Shut up, Little Ugly. This is a great concern to you, but it has nothing to do with me; I cannot be bothered by it.”
The mouse turned to the pig and told him, “There is a mouse trap in the house.” “I am so very sorry, Mr. Mouse,” said the pig, “but there is nothing I can do about it but pray; you are always  in my prayers.”
　　The mouse turned to the cow, who said, “A mouse trap; am I in great danger, huh?”
So the mouse had to face the farmer’s mouse trap alone.
　　That very night a sound was heard through the house, like the sound of a mouse trap catching its prey. The farmer’s wife rushed to see what was caught. In the darkness, she did not see that it was a poisonous snake whose tail the trap had caught. The snake bit the farmer’s wife. The farmer rushed her to the hospital.
She returned home with a fever. It is said that drinking fresh chicken soup will help treat fever, so the farmer took his sharp knife to the farmyard for the soup’s main ingredient. His wife’s sickness continued so that friends and neighbors came to sit with her around the clock. To feed them, the farmer killed the pig. 　　The farmer’s wife did not get well, in fact, she died, and so many people came for her funeral. The farmer had the cow killed to provide meat for all of them to eat.
So next time someone is facing a problem, don’t say that has nothing to do with you.
【小题1】We could see from the passage that the mouse was______.

C
If you were to come up with a list of organizations whose failures had done the most damage to the American economy in recent years, you would probably have to start with the Wall Street firms that brought us the financial crisis．From there, you might move on to the automakers in Detroit．
But I would suggest that the list should also include a less obvious nominee: public education．
At its top level, the American system of higher education may be the best in the world．Yet in terms of its core mission---turning teenagers into educated college graduates--- much of the system is failing．
The United States does a good job enrolling （招生） teenagers in college, but only half of the students who enroll end up with a bachelor’s degree．
So identifying the causes of the college dropout crisis in the world’s largest economy matters enormously, and a new book called “Crossing the Finish Line” tries to do precisely that．Its authors are economists William Bowen and Michael McPherson, and a doctoral candidate Matthew Chingos．The first problem they diagnose is something they call under-matching．It refers to students who choose not to attend the best college they can get into．They instead go to a less selective one, perhaps one that is closer to home or less expensive．About half of the low-income students with a grade-point average of at least 3．5 in high school and an SAT score of at least 1,200 do not attend the best college they could have．“I was really astonished by the degree to which well-qualified students from poor families under-matched,” said Mr．Bowen．
In fact, well-off students attend the colleges that do the best job of producing graduates．Meanwhile, lower-income students -–even when they are better qualified—often go to colleges that excel（擅长）in producing drop-outs．“It’s really a waste,” Mr．Bowen said, “and a big problem for the country．” As the authors point out, the only way to lift the college graduation rate significantly is to lift it among poor and working-class students．Instead, it appears to have fallen．
What can be done? Money is clearly part of the answer．
46. Which of the following would people first think of as a factor responsible for the American financial crisis according to this passage?
A．The government．           B．Public education
C．The Detroit automakers．   D．The Wall Street firms．
47．What is a big problem with American higher education?
A．It is hard to enroll enough students into college．
B．Many colleges are experiencing low rate of graduation．
C．Many college students stay away from classes．
D．It is hard for many colleges to get financial aid from the government．
48．The title of the book Crossing the Finish Line probably means______．
A．running to the end of the line        B．going to college
C．finishing college education     D．working hard in college
49．Why do some students under--match ?
A．Because they have financial difficulty．       B．Because they face ambition crisis．
C．Because they lack confidence．         D．Because they can’t get guidance．
50．The passage is mainly about _______．
A．problems with secondary American education and possible solutions
B．America’s financial crisis, its cause and influence
C．low rate of American college graduation, its cause and its influence
D．relationship between American education and its economy

A disheveled (头发凌乱的) man appeared in court Thursday on charges of murdering a Chinese woman whose fight with her attacker was seen on webcam(摄像头) by her boyfriend in China. Police refused to release any details about the crime or its possible motive.
The body of York University student Liu Qian, 23, of Beijing, was found Friday in her apartment in Toronto a few hours after her boyfriend witnessed the attack, police said.
She was found undressed from the waist down but there were no obvious signs of sexual attack or trauma (创伤) severe enough to kill her. Police say it may be weeks before the results of an autopsy (尸体解剖) are known.
Brian Dickson, 29, stood before the court in a wrinkled white shirt and blue jeans as a charge of first- degree murder was read out. He did not enter a plea. His case was held over until April 26.
Dickson was arrested Wednesday. Police only announced his name and his age and asked the media not to publish any photos of Dickson, saying it could compromise the investigation. Toronto police spokesman Tony Vella declined to respond to the request further.
Liu’s father, Liu Jianhui, who arrived from China after being informed of his daughter’s death, thanked authorities for their quick action.
“I sincerely thank the people concerned with my daughter’s case,” he told reporters after the arrest. “Our daughter was studying very hard.”
Police released no motive or details about Dickson, but one friend described the Toronto man as an aspiring actor.
Patricia Tomasi, a friend of Dickson’s, told The Associated Press that she acted in a play at a local theater in Toronto with Dickson in 2007.
“He doesn’t seem like the type but that’s what they always say,” Tomasi said. “He’s tall with boyish good looks. I don’t know much about him except that he wanted to be an actor.”
Dickson attended York University where he studied global politics, but did not earn a degree from there.
He later worked for the Atlantic Council of Canada (ACC), where he served as an assistant to the president Juilie Lindhout. According to his biography on a newsletter from the Atlantic Council of Canada, Dickson has also been a running instructor and has been involved with Developments in Literacy, a Pakistani aid organization that raises money for children in Pakistan.
A statement from the Atlantic Council of Canada on Thursday said it was not council policy to comment on staff, but it confirmed that Dickson had been an intern(实习生) with the council from September 29, 2008, until March 27, 2009.
Liu was chatting with her boyfriend, Meng Xianchao, by webcam at about 1 am. Friday when a man knocked on the door, police said.
Meng reported seeing a struggle break out between the two before Liu’s webcam was shut off. Meng contacted other friends in Toronto who in turn called police.
The victim’s father, Liu Jianhui, said his daughter studied at Beijing City University before moving to Canada, where she met Meng.
Liu Qian’s laptop computer, webcam and mobile phone were taken from the apartment the night of the attack, police said. Police said the online chat was on a live streaming camera and was not recorded, though investigators were trying to figure out if there was any way they could recover it.
York University, whose campus is located near one of Toronto’s rougher neighborhoods, is one of Canada’s largest universities with more than 53,000 undergraduate and graduate students. About 3,200 of York’s students come from more than 150 foreign countries, the university’s website says.
【小题1】Which of the following statements is NOT true according to the passage?