— A young researcher is reported to have died...

— A young researcher is reported to have died of heart attack, aged only 30.

— ________ I wonder how his family could stand the thought of losing him.

A. How so?　　 B. Forget it.　　 C. Take it easy.　　 D. Really a pity.

高三英语单项填空中等难度题查看答案及解析

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.

高三英语阅读理解中等难度题查看答案及解析

It is reported that a similar technique can be ________ to the treatment of cancer.

A．applied　    B．attached

C．added　    D．compared

高三英语单项填空中等难度题查看答案及解析

It is said that if you want to stay young, sit down and have a good think. This is the research finding of a team of Japanese doctors, who say that most of our brains are not getting enough exercise — and as a result, we are growing old unnecessarily soon.

Professor Taiju Matsuzawa wanted to find out why otherwise healthy farmers in northern Japan appeared to be losing their ability to think and reason at a relatively early age, and how the process of aging could be slowed down. With a team of colleagues at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages and varying occupations. Computer technology enabled the researchers to obtain precise measurements of the volume of the front and side parts of the brain, which controls functions like eating and breathing, does not contract with age, and one can continue living without intellectual on economical faculties. Contraction of front and side parts — as cells die off — was observed in some subjects in their thirties, but it was still not evident in some sixty-and seventy-year-olds. Matsuzawa concluded from his tests that there is a simple way to the contraction normally connected with age — using the head.

The findings show in general terms that contraction of the brain begins sooner in people in the country than in the town. Those least at risk, says Matsuzawa, are lawyers, followed by university professors and doctors. White collar workers doing routine work in government offices are, however, as likely to have shrinking (萎缩) brains as the farm worker, bus driver and shop assistant.

Matsuzawa's findings show that thinking can prevent the brain from shrinking. Blood must circulate properly in the head to supply the fresh oxygen the brain cells need. “The best way to maintain, good blood circulation is through using the brain.” he says. “Think hard and engage in conversation. Don’t rely on pocket calculators.”

1.The team of doctors wanted to find out ______.

A. the size of certain people's brains

B. how to make people live longer

C. which people are most intelligent

D. why certain people are aging sooner than others.

2.On what are their research findings based?

A. The study of brain volumes of different people.

B. The study of brain volumes of old people.

C. The latest development of computer technology.

D. A survey of farmers in northern old people.

3.The doctors’ tests show that _______.

A. our brains shrink as we grow older

B. the front section of the brain does not shrink

C. sixty-year-olds have better brains than thirty-year-olds

D. some people's brains have contracted more than other people's

4.According to the passage, which people seem to age more slowly than the others?

A. Lawyers.　　 B. Farmers.

C. Clerks.　　 D. Shop assistants.

高三英语阅读理解中等难度题查看答案及解析

Some old Chinese customs, ________ many of you are too young to know, have already died out．

A．what           B．that           C．how            D．as

高三英语单项填空中等难度题查看答案及解析

Researchers are now using 3D printing to create models of the human heart to help heart specialists. The heart doctors can use the models to better help patients before an operation.

Dr. Bramlet, a children’s heart expert at the University of Illinois College of Medicine, says the 3-D models show information he cannot get any other way.

“And so what we’ve done with the printed models? We’ve pulled it out of the screen so that you can actually hold it in your hand and evaluate the anatomy（解剖）.”

A 3-D printer uses images from a digital display to create a physical model of a human heart. Matthew Bramlet says doctors can use the model to understand the anatomy.

Pictures from medical tests like CAT scan or MRI are sent to a 3-D printer to create a heart in a plaster（石膏）form. The printer then constructs the heart, thin layer by thin layer. Dr. Bramlet says the model matches the real heart in every detail. “When we’re done with the model and made our decision, we want to be able to go back to the source image and confirm those findings,” he says.

Dr. Bramlet has built model hearts for different kinds of heart operations. All of the operations were successful. In his first case, digital images showed only one tiny hole in a baby’s heart. But, the 3-D printed model showed several defects or problems that the baby was born with. Dr. Bramlet says those defects could not be seen easily in the images. The heart surgeon was able to change the type of surgery for the patient based on the 3-D model. He added that 3-D heart models saves time during heart operations.

Kathy Magliato is a heart surgeon at Saint John’s Health Center in Los Angeles. She welcomes the new technology. She says it could help her make better decisions before she operates on the hearts of her patients.

“I can then take this very complicated structure before the operation and I can hold it in my hand and plan an operation around what I’m seeing, touching and feeling. That to me is what can potentially change the game in an operation and save lives.”

Dr Bramlet continues to research the technology. He is working with the National Institutes of Health to build a 3-D library that includes heart models and images that others can use.

1.What’s the main idea of the passage?

A. The application of 3-D printing in heart operations

B. The development of 3-D technology.

C. The difficulties of heart operations.

D. Heart operations with the help 3-D models.

2.What is the biggest advantage of 3-D models in the diagnose of heart problems?

A. Surgeons can see, touch and feel the 3-D models.

B. They can help surgeons save time.

C. They can be made exactly like the hearts.

D. They can help discover the otherwise hidden heart problems.

3.Which of the following statements is TRUE?

A. The 3-D model can be taken out of a screen.

B. CAT scan and MRI are no longer needed.

C. The 3-D model is an exact copy of the heart.

D. Digital images are not reliable in heart operations.

4.What can we infer from the passage?

A. Digital images will mislead heart surgeons.

B. More patients will benefit from the 3-D technology.

C. Heart operations will never fail with 3-D models.

D. Surgeons cannot operate on hearts without 3-D models.

高三英语阅读理解中等难度题查看答案及解析

Researchers are now using 3D printing to create models of the human heart to help heart specialists. The heart doctors can use the models to better help patients before an operation.

Dr. Bramlet, a children’s heart expert at the University of Illinois College of Medicine, says the 3-D models show information he cannot get any other way.

“And so what we’ve done with the printed models? We’ve pulled it out of the screen so that you can actually hold it in your hand and evaluate the anatomy（解剖）.”

A 3-D printer uses images from a digital display to create a physical model of a human heart. Matthew Bramlet says doctors can use the model to understand the anatomy.

Pictures from medical tests like CAT scan or MRI are sent to a 3-D printer to create a heart in a plaster（石膏）form. The printer then constructs the heart, thin layer by thin layer. Dr. Bramlet says the model matches the real heart in every detail. “When we’re done with the model and made our decision, we want to be able to go back to the source image and confirm those findings,” he says.

Dr. Bramlet has built model hearts for different kinds of heart operations. All of the operations were successful. In his first case, digital images showed only one tiny hole in a baby’s heart. But, the 3-D printed model showed several defects or problems that the baby was born with. Dr. Bramlet says those defects could not be seen easily in the images. The heart surgeon was able to change the type of surgery for the patient based on the 3-D model. He added that 3-D heart models saves time during heart operations.

Kathy Magliato is a heart surgeon at Saint John’s Health Center in Los Angeles. She welcomes the new technology. She says it could help her make better decisions before she operates on the hearts of her patients.

“I can then take this very complicated structure before the operation and I can hold it in my hand and plan an operation around what I’m seeing, touching and feeling. That to me is what can potentially change the game in an operation and save lives.”

Dr Bramlet continues to research the technology. He is working with the National Institutes of Health to build a 3-D library that includes heart models and images that others can use.

1.What’s the main idea of the passage?

A. The application of 3-D printing in heart operations

B. The development of 3-D technology.

C. The difficulties of heart operations.

D. Heart operations with the help 3-D models.

2.What is the biggest advantage of 3-D models in the diagnose of heart problems?

A. Surgeons can see, touch and feel the 3-D models.

B. They can help surgeons save time.

C. They can be made exactly like the hearts.

D. They can help discover the otherwise hidden heart problems.

3.Which of the following statements is TRUE?

A. The 3-D model can be taken out of a screen.

B. CAT scan and MRI are no longer needed.

C. The 3-D model is an exact copy of the heart.

D. Digital images are not reliable in heart operations.

4.What can we infer from the passage?

A. Digital images will mislead heart surgeons.

B. More patients will benefit from the 3-D technology.

C. Heart operations will never fail with 3-D models.

D. Surgeons cannot operate on hearts without 3-D models.

高三英语阅读理解中等难度题查看答案及解析

Less than 5 percent of elephants die from cancer, and researchers may have finally figured out why.

According to a study from The University of Chicago, elephants produce "zombie genes"　 (僵尸基因)that can help protect the animal from cancer.

Here's how it works: Humans and other animals carry one copy of a " master tumor suppressor" Gene(主肿瘤抑制基因). Elephants have 20 copies. Scientists found that gene can cause a "zombie gene" to come back to life with a new purpose: killing cells in damaged DNA.

This is beneficial. because it acts in response to genetic mistakes, errors made when the DNA is being repaired, said Vincent Lynch, an assistant professor of human genetics at the University of Chicago and the study's lead author, in a statement. " Getting rid of that cell can prevent a subsequent cancer. "

Scientists say the gene also helps elephants enjoy long lives. They likely emerged roughly 25 to　 30 million years ago, when small - sized ancestors of modern elephants grew bigger, Lynch said.

Researchers want to conduct more studies to find out exactly how the genes in elephants kill off cells in damaged DNA. That could help humans: Studying how animals' bodies fight off cancer could lead to strategies to treat people. An estimated 17% of people worldwide die of cancer, according to the study published in the journal Cell Reports.

"If we can understand how these genomic changes (基因组变化 ) are contributing to cancer　 resistance, then we'll be able to start thinking about how we translate these to our patients. "Joshua Schiffman professor of pediatrics at University of Utah and an investigator at Huntsman Cancer Institute, said in an interview with CNN.

1.Why do elephants have a lower risk of dying from cancer than humans?

A. They have less "zombie genes".

B. They eat less meat and more grass.

C. They are huge enough to kill cells in damaged DNA.

D. They have more copies of a "master tumor suppressor" gene.

2.The "master tumor suppressor" gene brings the following benefits except that　 　　　　　 .

A. it can prolong elephants' lives　　 B. it can be transplanted into humans

C. it can kill cells, in damaged DNA　　 D. it can bring "zombie genes" back to life

3.What does the underlined word "these" in the last paragraph refer to?

A. genomic changes　　 B. cancer resistance

C. animals bodies　　 D. cells in damaged DNA

4.What is still a "puzzle" for researchers?

A. How many people die of cancer.

B. What kind of gene can kill the cancer

C. Why we adopt the strategies to treat people.

D. How the genes defeat the cells in damaged DNA.

高三英语阅读理解困难题查看答案及解析

When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

A. that          B. it                   C. this             D. what

高三英语单项填空简单题查看答案及解析

A researcher has made a report 1. says having a lot of money makes you a bad person. Professor Paul Piff spent ten years 2. (look) at the personalities of rich people and 3. (find) that their behaviour was very different 4. the behavior of poor people. Rich people are more likely to break 5. (rule), not follow the law, and not care about other people. Wealthy people cheat more at games and are less likely to help other people. Professor Piff told the BBC, “Wealth makes you more 6. (worry) about your own interests, your own desires, your own welfare.” He added that rich people think their own goals and needs are the most 7. (importance) thing in their life.

Professor Piff also found that poor people are more generous than rich people. The poor give a higher percentage of their money 8. (help) others than the rich. The 9. (wealth) you are, the less generous you are. You give significantly smaller portions away to other people. However, he said that rich people could change their behavior and become nicer 10. more generous.

高三英语短文填空中等难度题查看答案及解析