单选题Most people {{U}}favored{{/U}} the plan.
A. agreed
B. opposed
C. liked
D. voted
单选题Many photographers prefer to take pictures {{U}}at twilight{{/U}} when they can take advantage of the special effects of the setting sun.
单选题Many of novelist Carson McCullers' characters are isolated, disappointed people. A. solitary B. gloomy C. feeble D. frugal
单选题Every year earthquakes are responsible for a large number of deaths and a vast amount of destruction in various parts of the world. Most of these damaging earthquakes occur either in a narrow belt which surrounds the Pacific Ocean or. in a line which extends from Burma to the Alps in Europe. Some of the destruction is directly caused by the quake itself. An example of this is the collapse of buildings as a result of the quake itself. Other damage results from landslides or major fires which are initiated by the quake. Many damaging earthquakes occurA. under the Pacific Ocean.B. near Alps in Europe.C. in a strip around the Pacific.D. ill Burm
单选题
单选题
Exercise Being Good or Bad Can
exercise be a bad thing? Sudden death during or soon after strenuous exertion on
the squash court or on the army training grounds, is not unheard of. {{U}}
{{U}} 1 {{/U}} {{/U}}trained marathon runners are not immune to
fatal heart attacks. But no one knows just {{U}} {{U}} 2
{{/U}} {{/U}}common these sudden deaths linked to exercise are. The
registration and investigation of such {{U}} {{U}} 3 {{/U}}
{{/U}}is very patchy; only a national survey could determine the true {{U}}
{{U}} 4 {{/U}} {{/U}}of sudden deaths in sports. But the climate of
medical opinion is shifting in {{U}} {{U}} 5 {{/U}} {{/U}}of
exercise, for the person recovering from a heart attack as {{U}} {{U}}
6 {{/U}} {{/U}}as the average lazy individual. Training can help the
victim of a heart attack by lowering the {{U}} {{U}} 7 {{/U}}
{{/U}}of oxygen the heart needs at any given level of work {{U}} {{U}}
8 {{/U}} {{/U}}the patient can do more before reaching the point where
chest pains indicate a heart starved of oxygen. The question is, should
middle-aged people, {{U}} {{U}} 9 {{/U}} {{/U}}particular, be
screened for signs of heart disease before {{U}} {{U}} 10
{{/U}} {{/U}}vigorous exercise? Most cases of sudden death in
sport are caused by lethal arrhythmias in the beating of the heart, often in
people {{U}} {{U}} 11 {{/U}} {{/U}}undiagnosed coronary heart
disease. In North America {{U}} {{U}} 12 {{/U}} {{/U}}over 35 is
advised to have a physical check-up and even an exercise electrocardiogram. The
British, on the whole, think all this testing is unnecessary. Not many people
die from exercise, {{U}} {{U}} 13 {{/U}} {{/U}}, and ECGs (心电图)
are notoriously inaccurate. However, two medical cardiologists at the Victoria
Infirmary in Glasgow, advocate screening by exercise ECG for people over 40, or
younger people {{U}} {{U}} 14 {{/U}} {{/U}}at risk of developing
coronary heart disease. Individuals showing a particular abnormality in their
ECGs {{U}} {{U}} 15 {{/U}} {{/U}}, they say, a 10 to 20 times
greater risk of subsequently developing signs of coronary heart disease, or of
sudden death.
单选题{{B}}第二篇{{/B}}
Benefit Payments to American
Workers German Chancellor (首相)Otto Von Bismarck
may be most famous for his military and diplomatic talent, but his legacy (遗产)
includes many of today's social insurance programs. During the middle of the
19th century, Germany, along with other European nations, experienced an
unprecedented rash of workplace deaths and accidents as a result of growing
industrialization. Motivated in part by Christian compassion (怜悯)for the
helpless as well as a practical political impulse to undercut the support of the
socialist labor movement.' Chancellor Bismarck created the world's first
workers' compensation law in 1884. By 1908, the United States
was the only industrial nation in the world that lacked workers' compensation
insurance. America's injured workers could sue for damages in a court of law,
but they still faced a number of tough legal barriers. For example, employees
had to prove that their injuries directly resulted from employer negligence and
that they themselves were ignorant about potential hazards in the workplace. The
first state workers' compensation law in the country passed in 1911, and the
program soon spread throughout the nation. After World War Ⅱ,
benefit payments to American workers did not keep up with the cost of living. In
fact, real benefit levels were lower in the 1970s than they were in the 1940s,
and in most states the maximum benefit was below the poverty level for a family
of four. In 1970, President Richard Nixon set up a national commission to
study the problems of workers' compensation. Two years later, the commission
issued 19 key recommendations, including one that called for increasing
compensation benefit levels to 100 percent of the states' average weekly
wages. In fact, the average compensation benefit in America has
climbed from 55 percent of the states' average weekly wages in 1972 to 97
percent today. But, as most studies show, every 10 percent increase in
compensation benefits results in a 5 percent increase in the numbers of workers
who file for claims. And with so much more money floating in the workers'
compensation system, it's not surprising that doctors and lawyers have helped
themselves to a large slice of the growing pie.
单选题Pushbike Danger
Low speed bicycle crashes can badly injure—or even kill—children if they fall onto the ends of the handlebars (车把). So a team of engineers is redesigning it to make it safer.
Kristy Arbogast, a bioengineer at the Children"s Hospital of Philadelphia in Pennsylvania, began the project with her colleagues. The cases they reviewed about serious abdominal (腹部的) injuries in children in the past 30 years showed that more than a third were caused by bicycle accidents. "The task was to identify how the injuries occurred and came up with some countermeasures," she says.
By interviewing the children and their parents, Arbogast and her team were able to reconstruct many of the accidents and identified a common cause for serious injuries. They discovered that most cases occur when children hit an obstacle at slow speed, causing them to topple (摇摆) over. To maintain their balance the children turn the handlebars through 90 degrees—but their momentum (冲力) forces them into the end of the handlebars. The bike then falls over and the other end of the handlebars hits the ground, pushing it into their abdomen (腹部).
The solution the group came up with is a handgrip (握柄) fitted with a spring and damping (减速) system. The spring absorbs up to 50 per cent of the forces transmitted (传递) through the handlebars in an impact. The group hopes to commercialize the device, which should add only a few dollars to the cost of a bike. "But our task has been one of education because up until now, bicycle manufacturers were unaware of the problem," says Arbogast.
单选题Their interpretation was faulty.A. wrongB. ambiguousC. unclearD. unbelievable
单选题UAs a matter of fact/U, I love soft music more than popular music.
单选题I was amazed at the beauty of the mountain when I reached to the top.A. excitedB. astonishedC. happyD. unpleasant
单选题The Case of the Disappearing Fingerprints One useful anti-cancer drug can effectively erase the whorls and other characteristic marks that give people their distinctive fingerprints. Losing (51) become troublesome. A case released online in a letter by Annals of Oncology indicates how big a (52) of losing fingerprints is. Eng-Huat Tan, a Singapore-based medical doctor describes a 62-year old man who has used capecitabine to (53) his nasopharyngeal cancer. After three years on the (54) , the patient decided to visit U.S. relatives last December. But he was stopped by U.S customs officials (55) 4 hours after entering the country when those officials couldn't get fingerprints from the man. There were no distinctive swirly (56) appearing from his index finger. U.S. customs has been fingerprinting incoming foreign visitors for years, Tan says. Their index fingers are (57) and screened against digital files of the fingerprints of bad guys—terrorists and potential criminals that our federal guardians have been tasked with keeping out of the country. Unfortunately, for the Singapore travelers, one potential (58) effect of his drug treatment is a smoothing of the tissue on the finger pads. (59) , no fingerprints. "It is uncertain when fingerprint loss will (60) to take place in patients who are taking capecitabine," Tan points out. So he cautions any physicians who (61) the drug to provide their patients with a doctor's note pointing out that their medicine may cause fingerprints to disappear. Eventually, the Singapore traveler made it into the United States. I guess the name on his passport didn't raise any red flags. But he's also now got the explanatory doctor's note-and won't leave home (62) it. By the way, maybe the Food and Drug Administration, (63) approved use of the drug years ago, should consider (64) its list of side effects associated with this medicine. The current list does note that patients may experience vomiting, stomach pain and some other side effects. But no where (65) it mention the potential for loss of fingerprints.
单选题TapeStore: A New Tape Storage System
TapeStore is a new kind of tape storage system which can store up to 6,000 computer tapes. No other tape storage system can hold as many computer tapes as TapeStore. The tapes look exactly like video cassettes. Many hundreds of data files can be stored on each tape, up to a maximum Of 500 million bytes (字节) of data. If you stored the same amount of information on paper, you would need nearly 4.5 billion printed pages.
The machine is a tall black box with a mechanical arm. The machine is 2.5 meters high and 3.0 meters wide. This is how it works. Each tape has a code printed on it. You iced the code number into TapeStore, which then looks for the code. As soon as TapeStore locates the code, the arm reaches in and pulls out the tape.
The system is very fast. It takes the mechanical arm about 10 seconds to find the tape it is looking for. The machine then searches the tape to extract (提取) the required file, and this takes less than a minute. A human technician would have to locate and remove the tape by hand, and could take at least an hour to find the right file on the tape.
Some of the world"s biggest companies, including banks, insurance companies, airlines, telephone companies, utilities and computer centers, have bought the system. They like it particularly because the system guarantees the security of their data.
TapeStore was originally developed in Canada and is now being
marketed
worldwide. In Europe alone, 750 Tape Stores have already been installed at a cost of 480,000 dollars each.
单选题The police will need to keep a {{U}}wary{{/U}} eye on this area of town.
A. naked
B. blind
C. cautious
D. private
单选题He called on me last week and I was happy to see him after 15 years.A. phonedB. visitedC. hitD. appeared
单选题Ford"s Assembly Line
When it comes to singling out those who have made a difference in all our lives, you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars—one, strange to say, that originated in slaughterhouses (屠宰场).
Back in the early 1900"s, slaughterhouses used what could have been called a "disassembly line". Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto. Rather than have each worker completely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another component to it, the same one each time. Professor David Hounshell of the University of Delaware, an expert on industrial development, tells what happened.
"The previous day, workers carrying out the entire process had averaged one assembly every 20 minutes. But on that day, on the line, the assemble team averaged one every 13 minutes and 10 seconds per person."
Within a year, the time had been reduced to five minutes. In 1913, Ford went all the way. Hooked together by ropes, partially assembled vehicles were towed (拖, 拉) past workers who completed them one piece at a time. It hasn"t long before Ford was
turning out
several hundred thousand cars a year, a remarkable achievement then. And so efficient and economical was this new system that he cut the price of his cars in half, to $260, putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers the world over copied him. In fact, he encouraged them to do so by writing a book about all of his innovations, entitled Today and Tomorrow. The Age of the Automobile has arrived. Today, aided by robots and other forms of automation (自动化), everything from toasters to perfumes is made on assembly lines.
单选题The plan is put off because of the lack of money.A. heldB. delayedC. spreadD. cancelled
单选题The police believe the {{U}}motive{{/U}} for the murder was jealousy.
A. choice
B. idea
C. decision
D. reason
单选题{{B}}第二篇{{/B}}
{{B}}
Saving Money{{/B}} Where you
save your money often depends on what you are saving for. If you are saving to
buy a CD (光盘) or to go to a concert, then probably you would keep your money
somewhere in your room. If you are saving for a big purchase
like a mountain bike or a school trip, where would you save your
money? One place to save money is the bank. Putting your money
in a savings account will help your money earn more money. If you put your money
in a piggy bank (猪形储蓄罐), one year later you'll still have the same amount of
money you put in. If you put your money in a savings account, one year later,
you'll have more money than you put in. Why? When you keep your
money in a bank, your money earns interest. Interest is an amount of money a
bank pays you to use your money. The bank uses your money (and the money of
other people, too) to loan money to people and businesses. The
bank will send you a statement several times a year. A bank statement tells you
how much money you have in your account. It also tells you how much interest you
have earned. If you leave your money in the bank, you can watch it
growl Another way you can save money is to buy a certificate of
deposit or CD. If you have some money that you don't need to use for a long
time, this is a good way to make your money grow. You can buy a
CD at a bank. You agree not to use the money for a certain period of time. That
period might be from six months to five years. You can't touch your money during
that time. If you do, you must pay a penalty, or
fee.
单选题She felt frustrated when nobody understood what she was trying to say.
