Researchers at Oxford University say they have developed a new method that could predict heart attacks years before they happen. They use mathematical algorithms(演算法)to examine CT images of a patient's heart. One report on their study has been published in the medical journal The Lancet.
Most heart attacks result from a build-up of fatty tissue inside arteries(动脉)that carry blood from the heart to other areas of the body. Too much buildup can block this flow of blood and cause a heart attack. Currently, doctors use CT scans to learn when a sticky substance called plaque has already built up inside an artery. The new technology is designed to predict which arteries are at risk for future buildup. How much fat is present around heart arteries also can be measured. That fat changes when an artery becomes inflamed(发炎), serving as an early warning system for heart attacks.
Charalambos Antoniades, a professor of cardiovascula(心血管)medicine at Oxford University, believes the research shows this method could be very effective in getting patients to take early steps to prevent future problems.
“Say your arteries are inflamed and a narrowing will be developed five years down the line. So maybe you can start preventive measures to avoid this formation of plaques,” he said. “If you are able to identify inflammation in the arteries of the heart, then you can say which arteries will cause heart attacks.”
Antoniades added that researchers had yet to estimate exactly how many heart attacks could be prevented. But he said he believes the technique could help identify between 20 to 30 percent of people at risk of having one.
He added that the new technology will make such predictions easier because it works together with existing CT technology.
1.You can identify which arteries will cause heart attacks by .
A. locating where the inflamed arteries are
B. seeing a cardiovascular doctor
C. developing a new method to predict it
D. measuring how much fat is built up
2.This passage is probably from a .
A. medical textbook B. travel brochure
C. graduation paper D. science journal
3.What‟s Artoniades‟ attitude towards the new method?
A. Tolerant. B. Defensive. C. Critical. D. Favorable.
听下面一段独白，回答以下小题。
1.How long is the English Coffee Shop open to customers a day?
A. For 24 hours. B. For 8 hours. C. For 12 hours.
2.What can we learn about the radio station?
A. It is owned by the English Coffee Shop.
B. It is on Montana at Seventh Street in Santa Monica.
C. It sells advertising time.
3.What is the weather like in the morning?
A. Cloudy. B. Cold. C. Fine.
4.What can we learn about Santa Monica Beach?
A. It‟s used for parking cars. B. It‟s a good place for surfing. C. It‟s a good place for skating.
听下面一段较长对话，回答以下小题。
1.What does the man probably do?
A. A ticket collector. B. A jeweler. C. A policeman.
2.Where does the conversation most probably take place?
A. On a train. B. In the street. C. At the man‟s office.
3.Why does the man stop the woman?
A. She stole something. B. She was too rude to him. C. She smoked in public places.
4.Where will the speakers probably go?
A. The police station. B. The train station. C. The woman‟s office
听下面一段较长对话，回答以下小题。
1.What are the two speakers talking about?
A. Air pollution. B. Transportation. C. Road connection.
2.Why does the man think laws of car use will be made?
A. Because road traffic has to be controlled.
B. Because there‟ll be new ways of travelling.
C. Because too many people enjoy air travel.
3.What does the woman think of travelling by train under the ocean?
A. It is exciting. B. It is frightening. C. It is unimaginable.
听下面一段较长对话，回答以下小题。
1.Where will the woman have her sailing holiday?
A. In Italy. B. In Sweden. C. In Norway.
2.How much will the woman pay for her sailing holiday?
A. £ 450. B. £ 380. C. £ 370.
听下面一段较长对话，回答以下小题。
1.Where does the man most probably live?
A. In the countryside. B. In a big city. C. In America.
2.Why does the woman think that New York is the only place to live in?
A. It has a large population.
B. It offers a colorful and exciting life.
C. It‟s not only interesting but also quiet.
