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发布时间:2024-05-12 01:55:13

[单项选择]Passage 4 When a disease of epidemic proportions rips into the populace, scientists immediately get to work, trying to locate the source of the affliction and find ways to combat it. Oftentimes, success is achieved, as medical science is able to isolate the parasite, germ or cell that causes the problem and finds ways to effectively kill or contain it. In the most serious of cases, in which the entire population of a region or country may be at grave risk, it is deemed necessary to protect the entire population through vaccination, so as to safeguard lives and ensure that the disease will not spread. The process of vaccination allows the patient’s body to develop immunity to the virus or disease so that, if it is encountered, one can ward it off naturally. To accomplish this, a small weak or dead strain of the disease is actually injected into the patient in a controlled environment, so that his body’s immune system can leam to fight the invader properly. Information on h
A. "Vaccinations: A Blessing or A Curse"
B. "Principles of Vaccinations"
C. "Vaccines: Methods and Implications"
D. "A Miracle Cure under Attack"

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[单项选择]Passage 4 When a disease of epidemic proportions rips into the populace, scientists immediately get to work, trying to locate the source of the affliction and find ways to combat it. Oftentimes, success is achieved, as medical science is able to isolate the parasite, germ or cell that causes the problem and finds ways to effectively kill or contain it. In the most serious of cases, in which the entire population of a region or country may be at grave risk, it is deemed necessary to protect the entire population through vaccination, so as to safeguard lives and ensure that the disease will not spread. The process of vaccination allows the patient’s body to develop immunity to the virus or disease so that, if it is encountered, one can ward it off naturally. To accomplish this, a small weak or dead strain of the disease is actually injected into the patient in a controlled environment, so that his body’s immune system can leam to fight the invader properly. Information on h
A. The passible negative outcome of administering vaccines.
B. The practical use of a vaccine to control an epidemic disease.
C. The effectiveness of vaccines in eradicating certain disease.
D. The method by which vaccines are employed against the disease.
[单项选择]Passage Four
"When an individual enters a strange culture, he or she is like fish out of water." New comers feel at times that they do not’ belong and consequently may feel alienated from the native members of the culture. When this happens, visitors may want to reject everything about the new environment and may glorify and exaggerate the positive aspects of their own culture. Conversely, visitors may scorn their native country by rejecting its values and instead choosing to identify with (if only temporarily) the values of the new country.
Reactions to a new culture vary, but experience and research have shown that there are distinct stages in the adjustment process of foreign visitors. When leaving the comfortably secure environment of home, a person will naturally experience some stress and anxiety. The severity of cultural shock depend
A. cultural shock
B. individuals in a foreign culture
C. ways to adapt to a new culture
D. stages in the adjustment process in a foreign culture
[填空题]What does the passage suggest doing when you have a sleep problem
______.
[单项选择]Passage Three
A. When your child occasionally complains about a physical discomfort like headache.
B. When the symptoms interfere with your child’s ability to function at home or in school.
C. When your child grieves over a loss for days at a time.
D. When your child exhibits all the symptoms of depression.
[单项选择]The passage suggests that when jet streams interact with continents with few mountain ranges and plains, which of the following also happens
A. More "wandering" occurs in the jet stream than would probably occur over the ocean.
B. The continent in question heats and cools at a faster rate than it would without the jet stream.
C. The jet stream becomes more narrow and focused than it would be over the ocean.
D. The temperature of the jet stream is distributed more evenly than if the continent had more mountains.
E. The jet stream evinces more signs of being a thermally driven phenomenon than it does in other situations.
[单项选择]

When a disease of epidemic proportions threatens the public, scientists immediately get to work, trying to locate the source of affliction and find ways to combat. Vaccination is one of the effective ways to protect the (1) population of a region or country which may be (2) grave risk. The process of vaccination allows the patient’s body to (3) immunity to the virus or disease so that, if it is encountered, one can fight it (4) naturally. To accomplish this, a small weak or dead (5) of the disease is actually injected into the patient in a controlled environment, (6) his body’s immune system can learn to fight the invader (7) . Information (8) how to penetrate the disease’s defenses is (9) to all elements of the patient’s immune system in a process that occurs naturally, in which genetic information is passed from cell to cell. This makes sure that (10) the patient later
A. hurting
B. hindering
C. deteriorating
D. endangering

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