The genes of the cloned animals are so arranged that it can't________ such a disease, so it soon died.
A. overlook B. resist C. exist D. withdraw
暑假作业暑假快乐练西安出版社系列答案科目：高中英语 来源：甘肃省2010届高三下学期第一次诊断 题型：阅读理解
C
Depression （抑郁症）is a serious problem today. Depression causes workers to be unproductive, causing companies and countries to lose billion of dollars. One expert says that depression is like cancer because it is “widespread, costly and deadly”. Depression hits one person in five around the world.
Although people have believed depression to be a problem among the rich and educated, studies show that depression is a problem among everyone. Over any six-mouth period, between five to seven percent of the world’s population will be suffering from a serious depression.
Suicide （自杀）rates among people suffering from the disease in its extreme, or clinical form were 80 percent higher that in the population at large, and suffers were four times more likely to have heart attacks. People who suffer fr
om depression often have problems sleeping, getting up on time, and doing work productively.
Depression, which researchers agree has its origin in the genes（基因）, brings loss of of confidence and ability to concentrate-making it possible for employees and managers to work efficiently.
Depression is made more serious in China by Chinese’s by Chinese inability to face it. Many people believe that depressed people are either weak or lazy. Besides, there is no good treatment, with few specialists available.
“Most patients in China just don’t get help,” a Chinese doctor says. “In my hospital, I have to see 30 or 40 patients in a morning, and just have time to say ‘Hello, how do you feel?’”
In Western countries, people are not afraid to admit that they have depression, but most do not tell it to their boss, because they fear that their boss would fire them.
“In my experience, aging bosses are the most tilling to admit they have it, because they feel the most secure about themselves,” an American doctor says.
Hopefully, in the near future, people around the world will be able to admit that they have depression so that they can get the right treatment.
49．Which of the following is TRUE according to the passage?
A．It is widely believed that everyone may suffer from depression.
B．Depression brings great problems to its suffers in their life and work.
C．Depression is a commonly-existing problem only in rich countries.
D．The poorer and the less educated a person is, the less he will suffer from depression.
50．Compared to normal people, depressed people are likely to be__________.
A．very unconfident and often absent-minded
B．easy to avoid being hit by heart attacks
C．working efficiently and productively
D．either weak or lazy
51．Depression becomes more serious in China because of _________.
A．the understanding of the problem B．the lack for treatment and doctors
C．their unwillingness to tell it to their boss D．the doctors’ careless work
52．What can we infer from the passage?
A．People are suffering from depression because of the shortage of specialists.
B．The aging bosses around the world dare to say they are depressed.
C．More and more patients will turn to specialists for help.
D．Western people are braver than Chinese people.
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科目：高中英语 来源：2010年江西省高安中学高一下学期期末考试英语卷 题型：阅读理解
What does fizz (气泡) taste like? In Bubbly (多泡的)drinks such 
as sodas, tiny bubbles give the drink a lift--- and have a distinct taste, In a new study on mice, scientists have connected that fizzy-taste feeling to the ability to taste sourness, such as that of oranges or vinegar.
Scientists first thought the taste of bubbles came from the bubbles bursting on the tongue, but now ate starting to think differently. Charles Zuker, of Columbia University, and his team studied the nervous system of mice to understand how the tongue tastes carbon dioxide, which is the gas that makes up the bubbles.
Animals, including human beings, are able to detect different tastes by using taste buds(味蕾) which pick up tastes in the mouth, and then send them to the brain. In the experiment, different groups of mice were genetically engineered to be missing one of the senses involved in taste. “Genetically engineered” means the researchers were able to turn off the switches for certain senses by changing the genes responsible for taste. The mice in one group could not taste sweet; another, sour; the third, bitter, and the fourth, salt. When the scientists gave carbon dioxide to the mice, the nervous systems of all the mice responded to the gas, except those of the mice that could not taste sour.
This shows that the taste of the bubbles must be sour, and that by turning off the ability of the mice to taste sour, the scientists also turned off their ability to taste carbon dioxide. When they studied the cells that detect sourness, the researchers found a protein attached to the cells that is important to the process of tasting carbon dioxide. When carbon dioxide comes into contact with this protein, the protein knocks off particles called protons. These protons(质子), in turn, travel to the brain, which says ,” Hey! That’s a taste!”
It may seem like a lot of work to get from a can of soda to a taste, but the science of the senses is anything but simple, “ Taste is a challenging system to study,” one researcher says.
【小题1】 What is the most important function of the bubbles?
| A．To look interesting . | B．To make drinks taste good. |
| C．To make drinks funny. | D．To produce a lot of fizz. |
| A．sourness has nothing to do with the taste of bubbles. |
| B．there is a connection between sourness and bubbles. |
| C．the taste of bubbles is better if it’s less sour. |
| D．most mice cannot taste carbon dioxide. |
| A．the taste of bubbles is produced by the bubbles bursting on the tongue. |
| B．the nervous systems of mice show how the tongue tastes carbon dioxide. |
| C．taste seems simple but is very complex to research. |
| D．nerve cells sending signals to the brain is the first step in tasting something. |
| A．Nervous Systems Understand How the Tongue Tastes. |
| B．The Process of Taste |
C．The taste of Bubbles. |
| D．Different Animals Detect Different Tastes. |
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科目：高中英语 来源：2013-2014学年四川省高三11月月考试卷（解析版） 题型：阅读理解
Instead of hitting the beach, fourteen high school students traded swimming suits for lab coats last summer and turned their attention to scientific experiments.
The High School Research Program offers high school students guidance with researchers in Texas A&M’s College of Agriculture and Life Sciences. Jennifer Funkhouser, academic adviser for the Department of Rangeland Ecology and Management, directs this four-week summer program designed to increase understanding of research and its career potential.
Several considerations go into selecting students, including grades, school involvement and interest in science and agriculture. And many students come from poorer school districts, Funkhouser says, “This is their chance to learn techniques and do experiments they never would have a chance to do in high school.”
Warner Ervin of Houston is interested in animal science and learned how to tell male from female mosquitoes(蚊子）.His adviser, Craig Coates, studies the genes of mosquitoes that allow them to fight against malaria and yellow fever. Coates thought this experience would be fun and helpful to the high school students.
The agricultural research at A&M differs from stereotypes. It’s “molecular(分子）science on the cutting edge,” Funkhouser says. The program broadened students’ knowledge. Victor Garcia of Rio Grande City hopes to become a biology teacher and says he learned a lot about chemistry from the program.
At the end of the program, the students presented papers on their research. They’re also paid $600 for their work-another way this program differs from others, which often charge a fee.
Fourteen students got paid to learn that science is fun, that agriculture is a lot more than milking and plowing and that research can open many doors.
1.The research program is chiefly designed for _______.
A. high school advisers from Houston
B. college students majoring in agriculture
C. high school students from different places
D. researchers at the College of Agriculture and Life Sciences
2.It can be inferred from the text that the students in poorer areas ___________ .
A. had little chance to go to college
B. could often take part in the program
C. found the program useful to their future
D. showed much interest in their high school experiments
3.When the program was over, the students ________.
A. entered that college B. wrote research reports
C. paid for their research D. found way to make money
4.The underlined expression “on the cutting edge” in paragraph 5 means “on the most ___ position”.
A. important B. favorable
C. astonishing D. advanced
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科目：高中英语 来源：2010-2011学年浙江省杭州市高三上学期开学考试英语卷 题型：阅读理解
June 26, 2000 — the Human Genome(基因组) Project, a great $3 billion, 15-year task aimed at drawing the genetic(遗传的) map of humans, is now more than 90 percent completed. The scientific and medical communities are very excited about the chances genetic research provides for getting rid of diseases and prolonging(延长) human life. But those communities and policy makers also are careful about the scientific door they are opening as the project uncovers the mysteries of life.
For the last few years, the genetic advances in the developing field of biotechnologyhave provides material for all kinds of work, but the developments of modern science in unlocking the secrets of the human genetic codehave opened a world of possibilities for human health, as well as for the popular imagination.
While European and Japanese researchers are making rapid progress in decoding(解码) human DNA, the leading organization for genetic research is in the United States, which began in 1990, is “unlocking the code” of the human body to learn how to defeat fatal(致命的)diseases. Already, the Human Genome Project has become widely known and praised for finding the genes connected with terrible diseases as yet(迄今), and making progress toward separating the genes that show a sign of breast cancer or AIDS.
Once these genes are found and studied, researchers can develop new ways to attack infections, and genetic diseases. Medical companies are very interested in mapping the human genome, as they expect to develop a lot of new drugs for these illnesses.
1. Why did the scientists work hard at mapping the human genome?
A. Because the human genome can destroy many illnesses.
B. Because the human genome's completion can help them get rid of many diseases.
C. Because they wanted to be better known than others.
D. Because the human genome can provide a lot of chances of work.
2.Which country studied the genes most rapidly in the world?
A. Japan. B. Germany. C. The United States. D. China.
3. Which of the following is NOT true?
A. If the genes can be found, scientists can study many new ways to cure illnesses.
B. The scientists have made great progress in connecting the genes with the cancers.
C. Many medical companies show great interest in drawing the human genome map.
D. The United States began the Genes Study early in the 19th century.
4.The author suggests that the Human Genome Project can cause _______.
A. the policy makers to feel very worried and careful
B. the scientists to work harder
C. many people to find work easily
D. a lot of companies to produce many new drugs
5. The main idea of this article is about _______.
A. unlocking genetic code B. the genes' discovery
C. the great human genome D. the genes and the scientists
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科目：高中英语 来源：2013届度江苏省泰州市高二上学期英语调研卷 题型：阅读理解
Good Genes Mean Long Life
Scientists have discovered that living to the age of 100 may have nothing to do with the lifestyle you lead and everything to do with the type of genes you have.
For the lucky carriers of “Methuselah” genes, worries over smoking, eating unhealthily and not getting enough exercise may not be as necessary as to those of us without the special gene pattern (组合).
The “Methuselah” genes could give extra protection against the diseases of old age such as cancer and heart disease. They could also protect people against the effects of the unhealthy lifestyles that we believe will lead us to an early death, scientists say. However, the genes are very rare.
The genes include ADIPOQ, which is found in about 10 percent of young people but in nearly 30 percent of people living past 100. They also include the CETP and the ApoC3 genes, which are found in 10 percent of young people, but in about 20 percent of people over 100 years old.
Some of those genes were discovered by a research group at the Albert Einstein College of Medicine in New York, led by Professor Nir Barzilai. The team studied the genes of over 500 people over 100 years old, and their children.
The studies show that tiny mutations (变异) in the make-up of some genes can greatly increase a person’s lifespan (寿命). Barzilai told a Royal Society conference that the discovery of such genes gave scientists clear targets for developing drugs that could prevent age-related diseases, allow people to live longer and stay healthy.
David Gems, a researcher at University College London, believes that drugs to slow ageing will become widespread.
“If we know which genes control longevity (长寿) then we can … target them with drugs. That makes it possible to slow down ageing,” he told The Times.
“Much of the pain and suffering in the world are caused by ageing. If we can find a way to reduce that, then we are obliged (义不容辞的) to take it.”
1.According to the article, which of the following is the most important if a person is to live to the age of 100?
|
A．Eating healthy food every day. |
B．Having the right types of genes. |
|
C．Having a healthy lifestyle. |
D．Taking drugs that prevent ageing. |
2.According to the article, the ApoC3 gene is found in ________ of people over 100 years old.
|
A．10% |
B．20% |
C．30% |
D．50% |
3.Which of the following statements is TRUE of the research led by Professor Nir Barzilai?
|
A．The team studied the genes of over 100 people over 100 years of age. |
|
B．The researchers found that mutations in certain genes lead to longer life. |
|
C．The researchers found ways to develop drugs that could cure age-related diseases. |
|
D．The study suggested that most people have genes that could lengthen their lives. |
4. According to David Gems, ________.
|
A．drugs to slow ageing will be very expensive |
|
B．modern science will be able to find more longevity genes |
|
C．it is the duty of medical scientists to fight the problems of ageing |
|
D．scientists can make new genes that will allow longer life |
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