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Scientists aim to develop technology that can recognize psychological states.
A．Y
B．N
C．NG
答案
更多“Scientists aim to develop technology that can recognize psychological states.A．YB．NC．NG”相关的问题
第1题
Scientists aim to reduce the weight of this device to five pounds.
A．Right
B．Wrong
C．Not mentioned
第2题
Scientists aim to reduce the weight of this device to five pounds.
A．Right
B．Wrong
C．Not mentioned
第3题
Scientists aim to develop technology that can recognise psychological states.
A．Y
B．N
C．NG
第4题
To determine the【C15】______ of the lack of sleep, scientists have put subjects【C16】______ a set of psychological and performance tests【C17】______ them, for instance,【C18】______ columns of numbers or recall a passage read to them only minutes earlier, "We've found that if you're in sleep deficit (缺乏), performance suffers," says Dr. David. "Short-term memory is【C19】______ , as are abilities to【C20】______ decisions and to concentrate."
【C1】
A．request
B．need
C．want
D．fancy
第5题
Unlocking the Human Genome(基因组)
1 A project to unlock secrets-what scientist could resist that challenge？ This is what many scientists are doing as they work on the Human Genome Project. The aim of the project is to decode(破译)all of the some 100, 000 genes in the human body. Scientists are using DNA fingerprinting techniques to do the decoding.
2 DNA is the substance found in the chromosomes(染色体)of a cell. A chromosome is a chain of genes. Each gene carries a piece of genetic information. At any one moment in a cell, thousands of genes are turned on and off to produce proteins(蛋白质). The challenge for scientists is to find out what role each gene plays in protein production. At some point this decoding will be complete. Then scientists will have a map of an ideal genome, or a picture of the total genetic nature of a human being. The ideal genome is called a consensus(交感)genome. Everything works well in a consensus genome.
3 But no one in the world has a consensus genome. Everyone's genome is different from the ideal. These differences are referred to as genetic mutations(突变). Genetic mutations in a person's genome mean that the person has a greater than average chance of suffering from health problems. Some problems are not life-threatening. These would include things like colorblindness, or mild headaches. Other problems are serious, such as heart disease, or cancer.
4 It will take years to identify the role of each of the 100, 000 genes, The short-term goal of the project is to find the physical and mental health problems a person is likely to encounter during his or her lifetime. The long-term goal is to have each person live a longer, healthier life.
A. How does DNA work？
B. What is the Human Genome Project about？
C. How are the DNA samples collected？
D. What are the goals of the Human Genome Project？
E. What is the role of each gene？
F. What are the consequences of genetic mutations？
Paragraph 1 ______
第6题
Colossal computer-controlled mirrors, thousands of feet across, may one day orbit the earth, reflecting sunlight onto a darkened United States.
Some Scientists say that 16 of these mirrors, each about a half mile across, could aim their reflected light at one area on the earth that was about 200 miles by 300 miles. That much light would equal about 56 moons.
The mirrors would be so high that they could catch the sun’s light as it was shining on the other side of the earth. The mirrors could orbit—thousands of miles high—at the same speed as the earth turns on its axis (轴). That way, the mirrors would always be over the same spot.
The aluminum-coated (涂铝的), plastic mirrors could be folded up and packed into a spaceship, according to the scientists. Once released a few hundred miles in space, the mirrors, powered by a solar-powered engine, could mark the rest of the trip into space on their own.
The scientists say that the computer-controlled mirrors could also be made to tilt (倾斜) slowly, so the reflected sunlight would sweep slowly along the surface of the earth. For example, as night fell, the mirrors could be tilted to light up Boston. Later on, as darkness spread slowly westward. Chicago, for example, then San Francisco could be lit up. The reflected sunlight would allow these cities to save up electricity. And in emergencies, such as power-failures, the mirrors could light up the affected area.
What no one knows yet is what effect this artificial daytime would have on plants, animals, and humans. Would it confuse some animals and harm plants that are used to regular day-night cycles？ The scientists recommend that studies be done to find out what had effects there might be.
第26题：The word “colossal” in Line 3 most likely means ________.
A) nuclear-powered
B) orbiting
C) giant
D) spinning
第7题
【题目描述】
Passage Two：Questions 26 to 30 are based on the following passage.
Computers may one day turn night into day—with good old, natural sunlight.
Colossal computer-controlled mirrors, thousands of feet across, may one day orbit the earth, reflecting sunlight onto a darkened United States.
Some Scientists say that 16 of these mirrors, each about a half mile across, could aim their reflected light at one area on the earth that was about 200 miles by 300 miles. That much light would equal about 56 moons.
The mirrors would be so high that they could catch the sun’s light as it was shining on the other side of the earth. The mirrors could orbit—thousands of miles high—at the same speed as the earth turns on its axis (轴). That way, the mirrors would always be over the same spot.
The aluminum-coated (涂铝的), plastic mirrors could be folded up and packed into a spaceship, according to the scientists. Once released a few hundred miles in space, the mirrors, powered by a solar-powered engine, could mark the rest of the trip into space on their own.
The scientists say that the computer-controlled mirrors could also be made to tilt (倾斜) slowly, so the reflected sunlight would sweep slowly along the surface of the earth. For example, as night fell, the mirrors could be tilted to light up Boston. Later on, as darkness spread slowly westward. Chicago, for example, then San Francisco could be lit up. The reflected sunlight would allow these cities to save up electricity. And in emergencies, such as power-failures, the mirrors could light up the affected area.
What no one knows yet is what effect this artificial daytime would have on plants, animals, and humans. Would it confuse some animals and harm plants that are used to regular day-night cycles？ The scientists recommend that studies be done to find out what had effects there might be.
第26题：The word “colossal” in Line 3 most likely means ________.A) nuclear-powered
B) orbiting
C) giant
D) spinning
| 【我提交的答案】： C |
| 【参考答案与解析】： 正确答案：D |
这题不应该是C 巨大的吗
第8题
Artificial intelligence aims to build machines that can think. One immediate problem is to define thought, which is harder than you might think. The specialists in the field of artificial intelligence complain, with some justification, that anything that their machines do is dismissed as not being thought. For example, computers can now play very, very good chess. They can't beat the greatest player in the world, but they can beat just about anybody else. If a human being played chess at this level, he or she would certainly be considered smart. Why not a machine？ The answer is that the machine doesn't do anything clever in playing chess. It uses its blinding speed to do a brute-force march of all possible moves for several moves ahead, evaluates the outcomes and picks the best. Humans don't play chess that way. They see patterns, which computers don't.
This wooden approach to thought characterizes machine intelligence. Computers have no judgment, no flexibility, no common sense. So-called expert systems, one of the hottest areas in artificial intelligence, aim to imitate the reasoning processes of human experts in a limited field, such as medical diagnosis(诊断) or weather forecasting. There may be limited commercial application for this sort of thing, but there is no way to make a machine that can think about anything under the sun, which a teenager can do.
The characteristic of artificial intelligence to date is that if a problem is severely restricted, a machine can achieve limited success. But when the problem is expanded to a realistic one, computers fall flat on their display screens. For example, machines can understand a few words spoken individually by a speaker that they have been trained to hear. They cannot understand continuous speech using an unlimited vocabulary spoken by just any speaker.
From the passage, we know that the writer ______.
A．thinks that scientists are on the point of achieving artificial intelligence
B．is in the full conviction that scientists have the competence to achieve artificial intelligence
C．remains doubtful of the fact that scientists have found real artificial intelligence
D．predicts with optimism that achieving artificial intelligence is now near at hand
第9题
Cell Phone Lets Your Secret Out
Your cell phone holds secrets about you. Besides the names and ______【51】that you've programmed into it, traces of your DNA linger on the device, according to a new study.
DNA is genetic material that______【52】in every cell. Like your fingerprint, your DNA is unique to you______【53】you have an identical twin. Scientists today routinely analyze DNA in blood, saliva, or hair left______【54】at the scene of a crime. The results often help detectives identify______【55】and their victims. Your cell phone can reveal more about you . _____【56】you might think.
Method J. McFadden, a scientist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the______【57】. This made her wonder whether traces of DNA lingered on cell phones—even when no blood was involved.
______【58】she and colleague Margaret Wallace of the City University of New York analyzed the flip-open phones of 10 volunteers. They used swabs to collect______【59】traces of the users from two parts of the phone: the outside, where the user holds it, and the______【60】, which is placed at the user's ear.
The scientists scrubbed the phones using a solution made mostly______【61】alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones______【62】for another week. Then the researchers collected the phones and repeated the swabbing of each phone once more.
The scientists discovered DNA that ______【63】to the phone's speaker on each of the phones. Better samples were collected from the outside of each phone, but those swabs also picked up DNA that belonged to other people who had apparently also handled the phone. ______【64】, DNA showed up even in swabs that were taken immediately after the phones were scrubbed. That suggests that washing won't remove all traces of evidence from a criminal's device. So cell phones can now be added to the______【65】of clues that can clinch a crime-scene investigation.
(51)
A．numbers
B．music
C．secrets
D．films
第10题
Using HIV Virus to Cure Cancer
Scientists are planning to use human immunodeficiency (免疫缺陷) virus (HIV), one of mankind's most feared viruses, as a carrier of genes which can fight cancer and a range of diseases that cannot be cured. The experts say HIV has an almost perfect ability to avoid the body's immune (免疫的) defenses, making it ideal for carrying replacement genes into patients' bodies, according to the Observer.
A team at the California-based Salk Institute, one of the world's leading research centers on biological sciences, has created a special new breed of HIV and has started negotiations with the U.S. Food and Drug Administration (FDA) to begin clinical gene therapy (治疗) trials this year. The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor Inder Verma said the HIV technique would have "far wider applications".
The plan remains very likely to cause controversy since it involves making use of a virus which has caused more than 22 million deaths around the world in the past two decades. Verma said that the idea of using HIV for a beneficial purpose was "shocking" but the fierce nature of HIV had disappeared by having all six of the potentially deadly genes removed.
Illnesses such as various cancers are caused when a gene in a patient's body fails to work properly. In the past two years, breakthroughs in genetics (遗传学) have led gene therapy scientists to try and replace the genes that de not function normally.
Unfortunately, the body's immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier.
The HIV virus has the ability to escape from, and then destroy, the immune defense cells designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients' bodies.
FDA has approved the plan of using HIV to cure cancer in humans.
A．Right
B．Wrong
C．Not mentioned
