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Each year, hundreds of thousands of people die from heart attack, a leading cause of death

. In the Landmark Physicians' Health Study at Harvard University in the United States in the late 1980s, a research team led by Dr. Hennekens studied 22, 701 healthy male physicians, half of whom were randomly【1】to take an aspirin every other day while the others took placebos(安慰剂). After the participants had been【2】for an average of five years, the doctors in the aspirin group were found to have suffered 44 percent fewer first heart attacks.【3】, a recent international study indicates that aspirin can be beneficial for those people with a history of coronary artery(冠动脉) bypass surgery,【4】of their sex, age or whether they have high blood pressure or diabetes.

According to a report by the American Heart Association, doctors should consider prescribing【5】aspirin for middle-aged people with a family history of, or【6】for, heart disease. (Risk factors include smoking, being more than 20 percent overweight, high blood pressure and lack of exercise. )

Aspirin is also a lifesaver during heart attacks. Paramedics now give it routinely, and experts urge anyone with chest pain,【7】if it spreads to the neck, shoulder or an arm, or is accompanied by sweating, nausea (恶心), lightheadedness and breathing difficulty to chew and【8】an aspirin tablet immediately.

When taking aspirin for heart attack,【9】the plain, uncoated variety. For even faster absorption, crush and mix with a little water. Speed of absorption is critical because most heart attack deaths occur【10】the first few hours after chest pain strikes.

(1)

A.expected

B.demanded

C.assigned

D.advised

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更多“Each year, hundreds of thousan…”相关的问题
第1题
Movies are the most popular form. of entertainment for millions of Americans. They go to t
he movies to escape their normal everyday existence and to experience a life more exciting than their own. They may choose to see a particular film because they like the actors or because they have heard the film has a good story. But the main reason why people go to the movies is to escape.

Sitting in a dark theater, watching the images on the screen, they enter another world that is real to them. They become involved in the lives of the characters in the movie, and for two hours, they forget all about their own problems. They are in a dream world where things often appear to be more romantic (浪漫的) and beautiful than in real life.

The biggest "dream factories" are in Hollywood, the capital of the film industry. Each year, Hollywood studios make hundreds of movies that are shown all over the world. American movies are popular because they tell stories and they are well-made. They provide the public with heroes who do things the average person would like to do but often can't. People have to cope with many problems and much trouble in real life, so they feel encouraged when they see the" good guys "win in the movies.

The Americans go to the movies mainly because they want______.

A.to enjoy a good story

B.to experience an exciting life

C.to see the actors and actresses

D.to escape their daily life

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第2题
The aerial photographs taken last year indicate that ______.A.there did exist liquid water

The aerial photographs taken last year indicate that ______.

A.there did exist liquid water on Mars

B.a drainage channel was cut deeply by Martians

C.there isn't any life on Mars

D.water had flew on Mars for hundreds to thousands of years

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第3题
Part ADirections: Read the following four texts. Answer the questions below each text by c

Part A

Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)

Suddenly, the economics of American suburban life are under assault as skyrocketing energy prices inflate the costs of reaching, heating and cooling homes on the distant edges of metropolitan areas. Just off Singing Hills Road, in one of hundreds of two-story homes dotting a former cattle ranch beyond the southern fringes of Denver, Phil Boyle and his family openly wonder if they will have to move close to town to get some relief.

They still revel in the space and quiet that has drawn a steady exodus from American cities toward places like this for more than half a century. But life on the edges of suburbia is beginning to feel untenable. Mr. Boyle and his wife must drive nearly an hour to their jobs in the high-tech corridor of southern Denver. With gasoline at more than $ 4 a gallon, Mr. Boyle recently paid $121 to fill his pickup truck with diesel fuel. In March, the last time he filled his propane tank to heat his spacious house, he paid $ 566, more than twice the price of 5 years ago.

Though Mr. Boyle finds city life unappealing, it is now up for reconsideration. "Living closer in, in a smaller space, where you don't have that commute," he said, "It's definitely something we talk about. Before it was'we spend too much time driving.' Now, it's 'we spend too much time and money driving.' "

Across the nation, the realization is taking hold that rising energy prices are less a momentary blip than a change with lasting consequences. The shift to costlier fuel is threatening to slow the decades-old migration away from cities, while exacerbating the 'housing downturn by diminishing the appeal of larger homes set far from urban jobs. In Atlanta, Philadelphia, San Francisco and Minneapolis, homes beyond the urban core have been falling in value faster than those within, according to an analysis by Moody's Economy. com. In Denver, housing prices in the urban core rose steadily from 2003 until late last year compared with previous years, before dipping nearly 5 percent in the last three months of last year, according to Economy. com. But house prices in the suburbs began falling earlier, in the middle of 2006, and then accelerated, dropping by 7 percent during the last three months of the year from a year earlier.

Many factors have propelled the unraveling of American real estate, from the mortgage crisis to a staggering excess of home construction. But economists and real estate agents are growing convinced that the rising cost of energy is now a primary factor pushing home prices down in the suburbs. More than three-fourths of prospective home buyers are now more inclined to live in an urban area because of fuel prices, according to a recent survey of 903 real estate agents with Coldwell Banker, the national brokerage firm.

From the first two paragraphs we can learn that______.

A.soaring energy prices caused inflation in America

B.rising energy prices are threatening Phil's cattle business

C.jumping fuel prices make suburban life costlier

D.shooting fuel costs make urban life unappealing

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第4题
As he wiped sweat from his face on a crowded bus, Wang Jun spoke angrily, " it is simply t
oo hot today. They say it is 35 degrees, but who believes them?"

Mr. Wang, a retired worker, was echoing the feelings of thousands of Beijing people as summer entered its hottest stage.

Thursday was the hottest day of the year so far, with the temperature officially reported as 36 degrees. But many people believe the government understates the real figure because regulations (条例 ) passed in the 1950s allow workers to stay at home for all or half day if the temperature is higher than 38 degrees.

" It was at least 40 degrees on Thursday, " said Liang Guojun, a middle school teacher. " It was unbearable. But the newspaper said only 36 and forecast rain. Of which there was none.

In Beijing, visitors to Daguanyuan Park in the southwest of the city said the ground temperature reached 55 degrees on Thursday.

The Beijing Evening News reported yesterday that more than 3 , 000 people had been admitted to hospitals suffering from heat stroke (中暑) , while local power companies were struggling to meet the demand for electricity.

A heat wave is sweeping much of the mainland, with temperatures in parts of Beijing, Shandong and Hebei provinces reaching as high as 39 degrees. Xinhua said the average temperature in Beijing on Thursday was 36 degrees but in the northern part of Tanghe Kou it was 39 degrees.

Hundreds of people suffering fevers were treated at hospitals. The Chaoyang hospital in northeast Beijing reported 55 such cases on Wednesday. They said most were caused by the difference in temperature between air-conditioned areas and outdoors.

Mr. Liang said the regulation on stopping work when the temperature reached 38 degrees was passed in the 1950s when Beijing had no air-conditioning and depended on fans—either handheld or electric.

"But in those days the temperature rarely reached 38 degrees, so the rule was not actually used. Now we have had years of global warming and industrial pollution and the summers get hotter each year, which means that the temperature is often higher than 38.

But an official from the Beijing Meteorological Observatory (北京气象台) said they had no knowledge of any such regulation.

Whom does the underlined word "they" (Paragraph 1) refer to?

A.Bus drivers.

B.Weather reports.

C.Newspaper editors.

D.Passengers on the bus.

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第5题
Farmers are losing thousands of dollars each year due to agricrime.
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第6题
Part ADirections: Read the following four texts. Answer the questions below each text by c

Part A

Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)

More than a hundred years ago, before the Civil War, a crew of cowboys stood outside a large horse corral. With them was their boss Bradford Grimes, a cattleman, who owned a large South Texas ranch near the Gulf of Mexico.

Just then, Mrs. Grimes, the cattleman's wife, came to the ranch house door and cried out, "Bradford! Bradford! Those Blacks are worth a thousand dollars apiece. One might get killed". The cowboys laughed, but they knew she was telling the truth. For they were all Black slaves. Bradford Grimes was their owner.

Most of the first Black cowboys were slaves, brought by their masters from the old South. On the plantations in the South, the slaves cut cotton. On the ranches in Texas they had to learn a new trade—breaking horses and handling long-horns. Some were taught by Mexican vaqueros, some by Indiana who knew the ways of horses and cattle.

Grimes was only one of hundreds of slave-owning ranchers who ran cattle in Texas. The ranchers had brought their families and slaves from Mississippi, Georgia, and other southern states. They came on horseback, on foot, and in wagons.

Some ranchers settled near the Mexican border, but there they found that it was too easy for their slaves to escape. Even slaves as far north as Austin, the capital of Texas, came to think of Mexico as the Promised Land. As early as 1845, the year that Texas became a state, a Texas newspaper reported the escape of twenty-five Blacks. "They were mounted on some of the best horses that could be found, "the story said, "and several of them were well armed". Thousands of other Black slaves escaped in the same way.

All-Black cattle crews were common throughout central and eastern Texas. There were even a few free Blacks who owned ranches before the Civil War. Aaron Ashworth was one of them, and he owned 2,500 cattle, as well as some slaves of his own. He employed a White schoolmaster to tutor his children. Black cowboys helped to tame and settle a wild country.

Most of the first Black slaves that became cowboys ______.

A.had been brought to Texas by their owners from the old south

B.came on their own to look for the promised land

C.came from ranches in Mexico looking for work on Texas cattle ranches

D.came from Africa

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第7题
In countries where a solar calendar was adopted, the length of each year need to be ______
in order to have the same number of months in each year.

A.changed

B.altered

C.transformed

D.modified

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第8题
If the economics of the world grow by 4% each year, ______.A.people will have no jobsB.peo

If the economics of the world grow by 4% each year, ______.

A.people will have no jobs

B.people can still have jobs as before

C.4% of the people will have jobs

D.97 % of the people will have jobs

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第9题
Each year, managers wear special clothes and work in the park to ______.A.set a good examp

Each year, managers wear special clothes and work in the park to ______.

A.set a good example for employees

B.remind themselves of their beginning at Disney

C.gain a better view of the company's objectives

D.replace employees on holiday

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第10题
You () build teamwork by “retreating” as a group for a couple of days each year, instead you need to think of team building as something you do every single day.
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