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Edward Jenner found a vaccine that protected at least 10% of the world’s population fro
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更多“Edward Jenner found a vaccine …”相关的问题
第一篇
The famous Dr. Edward Jenner was busy trying to solve the problem of smallpox. After studying case after case, he still found no possible cure. He had reached an impasse in his thinking. At this point, he changed his tactics. Instead of focusing on people who had smallpox, he switched his attention to people who did not have smallpox. It turned out that dairymaids(挤奶女工)apparently never got the disease. From the discovery that harmless cowpox gave protection against deadly smallpox came vaccination(牛痘) and the end of smallpox as a scourge(灾祸) in the Western world.
We often reach an impasse in our thinking. We are looking at a problem and trying to solve it and it seems there is a deadened, and "aporia" (the technical term in logic meaning "no opening"). It is on these occasions that we become tense, we feel pressured, overwhelmed, in a state of stress. We struggle vainly, fighting to solve the problem. Dr. Jenner, however, did something about this situation. He stopped fighting the problem and simply changed his point of view--from patients to dairymaids, picture the process going something tike this: Suppose the brain is a computer. This computer has absorbed into its memory bank all your history, your experiences, your training, your information received, through life, and it is programmed according to all this data. To change your point of view, you must reprogram your computer, thus freeing yourself to take in new ideas and develop new ways of looking at things. Dr. Jenner, in effect, by reprogramming his computer, erased the old way of looking at his smallpox problem and was free to receive new alternatives.
What does "impasse" probably mean？
A. deadened
B. depression
C. solution
D. peak
We often reach an impasse in our thinking. We are looking at a problem and trying to solve it and it seems there is a deadened, and "aporia" (the technical term in logic meaning "no opening"). It is on these occasions that we become tense, we feel pressured, overwhelmed, in a state of stress. We struggle vainly, fighting to solve the problem. Dr. Jenner, however, did something about this situation. He stopped fighting the problem and simply changed his point of view--from patients to dairymaids, picture the process going something tike this: Suppose the brain is a computer. This computer has absorbed into its memory bank all your history, your experiences, your training, your information received, through life, and it is programmed according to all this data. To change your point of view, you must reprogram your computer, thus freeing yourself to take in new ideas and develop new ways of looking at things. Dr. Jenner, in effect, by reprogramming his computer, erased the old way of looking at his smallpox problem and was free to receive new alternatives.
What does "impasse" probably mean？
A．deadened
B．depression
C．solution
D．peak
How did Dr. Edward Jenner solve the problem of smallpox？
A. He kept on focusing on people who had smallpox.
B. He changed his way of thinking by turning to people without smallpox.
C. Dairymaids advised that he use cowpox to experiment.
D. He happened to discover cowpox and he experimented with it on dairymaids.
How did Dr. Edward Jenner solve the problem of smallpox？
A．He kept on focusing on people who had smallpox.
B．He changed his way of thinking by turning to people without smallpox.
C．Dairymaids advised that he use cowpox to experiment.
D．He happened to discover cowpox and he experimented with it on dairymaids.
听力原文： The first significant step in the fight against infectious disease Was made in 1796 with discovery of a vaccine to prevent smallpox by Edward Jenner. Jenner had become aware of the fact that milkmaids who had suffered from a mild illness, cowpox, were unlikely to catch the much more serious smallpox disease. Jenner experimented on a child, introducing cowpox into the bloodstream. Later, the child was inoculated with smallpox, but did not catch the disease. Jenner's method had, proved much safer than the fashionable technique of inoculation, which had been brought to Britain from Turkey by Lady Montague. Despite opposition from the medical establishment, many of whom made a good income from inoculation, the government backed Jenner's claims; by 1853, vaccination had become compulsory for infants.
Louis Pasteur was a French chemist who in 1867 was able to demonstrate for the first time that germs caused disease. Pasteur went on to develop vaccines for chicken cholera, anthrax and rabies. The new science of bacteriology was advanced further by a German scientist, Robert Koch. Using microscopes and innovative methods of staining germs, Koch was able to identify specific germs as being responsible for the cause of disease. In 1882-3, he identified the microbes responsible for tuberculosis (TB) and cholera.
A rivalry developed between Pasteur and Koch, based in part on the tension which existed following France's defeat in the Franco-Prussian war of 1870-1. Both scientists were recognized in their own countries for their work, and set up with research centers. In 1881, Pasteur, successfully tried vaccine which protected against anthrax in animals. Koch, who quickly heard of the breakthrough by telegram, attempted unsuccessfully to discredit Pasteur. When, in the following year, he had the opportunity to treat a boy with rabies called Joseph Meister, Pasteur succeeded in developing a rabies vaccine.
What was the first step in fighting against infectious disease？
A．The discovery of a vaccine.
B．A powerful injection.
C．The help of a milkmaid.
D．The help from government.
Louis Pasteur was a French chemist who in 1867 was able to demonstrate for the first time that germs caused disease. Pasteur went on to develop vaccines for chicken cholera, anthrax and rabies. The new science of bacteriology was advanced further by a German scientist, Robert Koch. Using microscopes and innovative methods of staining germs, Koch was able to identify specific germs as being responsible for the cause of disease. In 1882-3, he identified the microbes responsible for tuberculosis (TB) and cholera.
A rivalry developed between Pasteur and Koch, based in part on the tension which existed following France's defeat in the Franco-Prussian war of 1870-1. Both scientists were recognized in their own countries for their work, and set up with research centers. In 1881, Pasteur, successfully tried vaccine which protected against anthrax in animals. Koch, who quickly heard of the breakthrough by telegram, attempted unsuccessfully to discredit Pasteur. When, in the following year, he had the opportunity to treat a boy with rabies called Joseph Meister, Pasteur succeeded in developing a rabies vaccine.
What was the first step in fighting against infectious disease？
A．The discovery of a vaccine.
B．A powerful injection.
C．The help of a milkmaid.
D．The help from government.
Lawyers can specialize in "elder law", which covers everything from trusts and estates to nursing home abuse and age discrimination (歧视). Businessmen see huge opportunities in the elder market because the baby boomers, 74 million strong, are likely to be the wealthiest group of retirees in human history. "Any student who combines an expert knowledge in gerontology with, say, an MBA or law degree will have a license to print money, "one professor says.
Margarite Santos is a 21-year-old senior at USC. She began college as a biology major but found she was" really bored with bacteria". So she took a class in gerontology and discovered that she liked it. She says, "I did volunteer work in retirement homes and it was very satisfying. "
". . . Old is suddenly in" (Line 1, Para. 1) most probably means" ______ "
A．America has suddenly become a nation of old people
B．gerontology has suddenly become popular
C．more elderly professors are found on American campuses
D．American colleges have realized the need of enrolling older students
Lawyers can specialize in “elder law,” which covers everything from trusts and estates to nursing-home abuse and age discrimination (歧视). Businessmen see huge opportunities in the elder market because the baby boomers, 74 million strong, are likely to be the wealthiest group of retirees in human history. “Any student who combines an expert knowledge in gerontology with, say, an MBA or law degree will have a license to print money,” one professor says.
Margarite Santos is a 21-year-old senior at USC. She began college as a biology major but found she was “really bored with bacteria.” So she took a class in gerontology and discovered that she lied it. She says, “I did volunteer work in retirement homes and it was very satisfying.”
第31题：“... Old is suddenly in” (Line 1, Para. 1) most probably means “________”.
A) America has suddenly become a nation of old people
B) gerontology has suddenly become popular
C) more elderly professors are found on American campuses
D) American colleges have realized the need of enrolling older students
All Canadian provinces provide Kindergarten but ______.
A．Prince Edward Island
B．Ontario
C．New Brunswick
D．Quebec
