With only about 1,000 pandas left in the world, China is desperately trying to clone(克隆)the animal and save the endangered species(物种). That's a move similar to what a Texas A & M University researchers have been undertaking for past five years in a project called “Noah's Ark”．
Noah's Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M's College of Veterinary Medicine, says there would be enough of the basic building blocks reintroduce the species in the future.
It is estimated that as many as 2,000 species of mammals, birds, reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer(核子移植)of one species to another is not easy, and the lack of available(capable of being used)panda eggs could be a major problem，”Karemer believes. “They will probably have to do several hundred transfers to result in one pregnancy(having a baby). It takes a long time and it's difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort，” adds Kraemer, who is one of the leaders of the Project at Texas A & M, the firstever attempt at cloning a dog.
“They are trying to do something that's never been done, and this is very similar to our work in Noah's Ark. We're both trying to save animals that face extinction. I certainly appreciate their effort and there's a lot we can learn from what they are attempting to do. It's a research that is very much needed.”The aim of “Noah's Ark” project is to________.
| A．make efforts to clone the endangered pandas |
| B．save endangered animals from dying out |
| C．collect DNA of endangered animals to study |
| D．transfer the nuclear of one animal to another |
According to Professor Kraemer, the major problem in cloning pandas would be the lack of________.
| A．available panda eggs | B．host animals |
| C．qualified researchers | D．enough money |
The best title for the passage may be________.
| A．China's Success in Pandas Cloning |
| B．The First Cloned Panda in the World |
| C．Exploring the Possibility to Clone Pandas |
| D．China—the Native Place of Pandas Forever |
From the passage we know that________.
| A．Karemer and his team have succeeded in cloning a dog |
| B．scientists try to implant a panda's egg into a rabbit |
| C．Kraemer will work with Chinese scientists in clone researches |
| D．about two thousand of species will probably die out in a century |
At thirteen, I was diagnosed（诊所） with kind of attention disorder. It made school difficult for me. When everyone else in the class was focusing on tasks, I could not.
In my first literature class, Mrs.Smith asked us to read a story and then write on it, all within 45 minutes. I raised my hand right away and said,”Mrs.Smith, you see, the doctor said I have attention problems. I might not be able to do it.”
She glanced down at me through her glasses, “you are no different from your classmates, young man.”
I tried, but I didn’t finish the reading when the bell rang. I had to take it home.
In the quietness of my bedroom, the story suddenly all became clear to me. It was about a blind person, Louis Braille. He lived in a time when the blind couldn’t get much education. But Louis didn’t give up. Instead, he invented a reading system of raised dots（点）, which opened up a whole new world of knowledge to the blind.
Wasn’t I the “blind” in my class, being made to learn like the “sighted” students? My thoughts spilled out and my pen started to dance. I completed the task within 40 minutes. Indeed, I was no different from others; I just needed a quieter place. If Louis could find his way out of his problems, why should I ever give up?
I didn’t expect anything when I handled in my paper to Mrs.Smith, so it was quite a surprise when it came back to me the next day- with an ”A” on it. At the bottom of the paper were these words:”See what you can do when you keep trying?”
The author didn’t finish the reading in class because.
| A．He was new to the class |
| B．He was tried of literature |
| C．He had an attention disorder |
| D．He wanted to take the task home |
What do we know about Louis Braille from the passage?
| A．He had good sight |
| B．He made a great invention. |
| C．He gave up reading |
| D．He learned a lot from school |
What was Mrs.Smith’s attitude to the author at the end of the story?
| A．Angry | B．Impatient |
| C．Sympathetic | D．Encouraging |
What is the main idea of the passage?
| A．The disabled should be treated with respect. |
| B．A teacher can open up a new world to students. |
| C．One can find his way out of difficulties with efforts. |
| D．Everyone needs a hand when faced with challenges. |
D
The world is filled with smart，talented and gifted people．We meet them every day．A few days ago，my car was not running well．I pulled it into a garage，and the young mechanic had it fixed in just a few minutes．He knew what was wrong by simply listening to the engine．I was amazed．The sad truth is，great talent is not enough．
I am constantly shocked at how little talented people earn．I heard the other day that less than 5 percent of Americans earn more than $100，000 a year．A business consultant who specializes in the medical trade was telling me how many doctors and dentists struggle financially．It was this business consultant who gave me the phrase，“They are one skill away from great wealth．”
There is an old saying that goes，“Job means ‘just over broke（破产）’”．And unfortunately，I would say that the saying applies to millions of people．Because school does not think financial intelligence is intelligence，most workers“ live within their means”．They work and they pay the bills．Instead I recommend young people to seek work for what they will learn，more than what they will earn．
When I ask the classes I teach，“How many of you can cook a better hamburger than McDonald’s?” almost all the students raise their hands．I then ask，“So if most of you can cook a better hamburger，how come McDonald’s makes more money than you?” The answer is obvious: McDonald’s is excellent at business systems．The reason why so many talented people are poor is that they focus on building a better hamburger and know little or nothing about business systems．The world is filled with talented poor people ．They focus on perfecting their skills at building a better hamburger rather than the skills of selling and delivering the hamburger．
The author mentions the mechanic in the first paragraph that ．
| A．he is just one of the talented people |
| B．he is ready to help others |
| C．he has a sharp sense of hearing |
| D．he knows little about car repairing |
The underlined part in the third paragraph can be best replaced by ．
| A．spend more than they can afford |
| B．do in their own way |
| C．live in their own circle |
| D．live within what they earn |
Why do talented people earn so 1ittle according to the author?
| A．They don’t work hard enough |
| B．They lack financial intelligence |
| C．They don’t make full use of their talents |
| D．They have no specialized skills． |
The main purpose of the author is to tell us ．
| A．how young people can find a satisfactory job |
| B．what schools should teach students |
| C．why so many talented people are poor |
| D．how McDonald’s makes much money |
C
It’s illegal for the police to attach a GPS unit to your car without your permission, as the U.S. Supreme Court settled in 2012. But if the police are in hot pursuit of a bank robber or other escaping criminals that threaten public safety, a GPS tracker is acceptable. But exactly how can the police GPS track a car that is moving fast?
The answer to that question comes from StarChase, a new police technology being used by a small-but growing number of law enforcement agencies. It allows the police to fire 4.5-inch glue-covered GPS bullet-like projectiles (发射体) from an air gun fixed in their police cars. If the GPS tracker makes contact with the escaping robber’s car, it’ll stick no matter how fast the vehicle is going. That way, the police will have a constant read on the car’s location and heading. Aside from simply apprehending (逮捕) criminals, it’s believed this new technology could help save lives. If the police successfully fire a GPS unit at a speeding criminal, they can pull back from a high-risk chase. Chases can be incredibly dangerous to all involved, including innocent bystanders and other drivers. Once the GPS bullet connects, there’s no need for the chase any longer.
Now, predictably, a GPS-loaded gun isn’t cheap. Police departments need to pay about $5,000 per vehicle for the technology, and individual GPS bullets cost as much as $250 each. That may sound expensive, but remember: The alternative is often thousands of dollars in property damage, and great human cost in injury and lost life. According to Star Chase, their GPS bullet system has an apprehension rate of 80% without any report of injury or property damage. If you’d like to learn more about the StarChase system, Popular Mechanics has just published a good article about it. There’s also plenty more information available at the company’s website.
When the GPS bullet sticks to the escaping robber’s car, the police can______ .
| A．know the car’s condition |
| B．ensure the robber’s safety |
| C．play a fair game with the robber |
| D．know the car’s position and direction |
The GPS bullets could help save lives mainly because
| A．the bullets won’t hurt people |
| B．they can make the robber’s car stop |
| C．the police can stop the dangerous chasing |
| D．they have more advantages than normal bullets |
From the text we can learn that GPS bullets
| A．are useful for the police |
| B．are widely used in America |
| C．can control the rising crime rate |
| D．can replace the police in the future |
In which part of a newspaper can we read the text
| A．Life | B．Nature | C．Fashion | D．Technology |
B
However urban life strikes you, cities worldwide have been growing every day。However urban life strikes you, cities worldwide have been growing ever more rapidly. Some of this growth has occurred in the developed world, but the most dramatic increase has been in the Third World. Almost all the world’s population growth over the next 30 years will take place in the cities of developing countries
By the year 2030, for the first time in history, 60 percent of the world’s people will be living in cities.
This is actually good news in some ways. “Cities are the fundamental building blocks of prosperity,” says Marc Weiss, chairman of the Prague Institute for Global Urban Development, “ both for the nation and for families.” Industrial and commercial activities in urban areas account for between 50 and 80 percent of the gross domestic product (GDP) in most countries of the world“ there’s the crazy notion that the way to deal with a city’s problems is to keep people out of them,”Weiss continued. “But the problems of the rural life are even more serious than those of the city.” For better or worse, urban-watchers are clear on one point: The quality of life for most people in the future will be determined by the quality of cities. Those cities will be bigger than ever. And yet, population numbers by themselves don’t determine a city’s prospects; after all, Addis Ababa, Ethiopia, and Hamburg, Germany, have the same population. Nor is explosive growth necessarily the determining factor. “City problems,” one authority points out, “mostly have to do with weak, ineffective, and usually unrepresentative city governments.”In the author’s opinion, _________.
| A．better city, better life |
| B．both urban and rural areas have a larger population |
| C．the larger population, the faster a city develops |
| D．both urban and rural areas have larger gross domestic products |
Which statement is NOT true according to the passage?
| A．The developing countries develop faster than the developed countries. |
| B．Cities contribute more to the GDP than the villagers. |
| C．Some problems are more easily solved in cities than in country. |
| D．It’s impossible to solve urban problems by getting people out of cities. |
The last paragraph implies that ____________.
| A．Public services are ineffective. |
| B．Cities are increasing too fast. |
| C．Population is not linked with development. |
| D．Government should be responsible for the problems in the cities. |
I teach geography at UNLV three times per week. Last Monday, at the beginning of class, I cheerfully asked my students how their weekend had been. One young man said that his weekend had not been so good. He had his wisdom teeth removed. The young man then asked me why I always seemed to be so cheerful. “I choose to be cheerful.” I said. Then I told them a story.
In addition to teaching here at UNLV, I also teach out at the community college in Henderson, 17 miles down the freeway from where I live. One day I drove those 17 miles to Henderson. I exited the freeway and turned onto College Drive. I only had to drive another quarter mile down the road to the college. But just then my car died and wouldn’t start again. So I left my car there and marched down the road to the college.
As soon as I got there I called AAA (美国汽车协会)and arranged for a tow truck (拖车) to meet me at my car after class. The secretary in the office asked me what had happened. “This is my lucky day.” I replied, smiling.
“Your car breaks down and today is your lucky day?” She was puzzled. “What do you mean?”
“My car could have broken down anywhere along the freeway but it didn’t.” I replied, “Instead, it broke down in the perfect place: off the freeway, within walking distance from here. I’m still able to teach my class, and I’ve been able to arrange for the tow truck to meet me after class.” The secretary’s eyes opened wide, and then she smiled. I smiled back and headed for class. So ended my story.
I scanned the sixty faces in my class at UNLV. Despite the early hour, no one seemed to be asleep. Somehow, my story had touched them. Or maybe it wasn’t the story at all. In fact, it had all started with a student’s observation that I was cheerful. An Indian wise man once said, “Who you are speaks louder to me than anything you can say.” I suppose it must be so. Why did the author tell his students the story?
| A．To share his lucky experience. |
| B．To make his class more lively. |
| C．To draw all students’ attention. |
| D．To encourage his students to be positive. |
What happened to the author on his way to the community college?
| A．He parked his car in a perfect place. |
| B．He called AAA for a tow truck to meet him. |
| C．He covered the last quarter mile on foot. |
| D．He drove off the freeway at a wrong exit. |
By saying “it wasn’t the story at all”, the author means that_______.
| A．His story is not convincing |
| B．He shouldn’t have told the story |
| C．His attitude to life has inspired the students |
| D．His story is not as interesting as expected |
What can be concluded from the passage?
| A．Easier said than done. |
| B．You are what you choose. |
| C．Behind bad luck comes good luck. |
| D．A good beginning makes a good ending. |
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