题目内容
（请给出正确答案）
The following infectious diseases that can develop into a mental illness is ______.
A．dementia
B．syphilis
C．malaria
D．untreated HIV infection
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更多“The following infectious disea…”相关的问题
Which of the following is true about the present swine flu viruses？
A．The viruses can infect different species.
B．The genes of the viruses come from pigs.
C．The viruses mix genes from different species.
D．The genes of the viruses were made artificially.
听力原文： Tears keep your eyes wet and they also contain substance that kills certain bacteria so it can't infect your eyes. Give up your tears and you lose this on-the-spot defense. Another thing you couldn't do without your tears is cry from joy, anger or sadness. Humans are the only animals that produce tears hi response to emotions. And most people say a good cry makes them feel better. That has led many scientists to believe that crying is an adaptive response to stress, that it somehow helps us cope with emotional situations. Tear researcher William Frey is trying to find out how it happens.
"One possibility," be says, "is that tears discharge certain chemicals from your body, chemicals that build up during stress. When people talk about crying it out, I think that might actually be what they are doing." He says. If Frey is right, how do you think not crying affects those who tend to "hold it in"？ Boys, for example, cry only about a quarter as often as girls once they reach their teenage years. And we all cry a lot less now than we did as babies. Could It possibly be that we face less stress？ Maybe we've found other ways to deal with it. Or maybe we just feel embarrassed.
(33)
A．To keep your eyes a bit drier.
B．To protect your eyes from infection,
C．To cry for your sadness only.
D．To conceal your happiness.
Avian influenza (禽流感), or "bird flu", is an infectious
disease of animals was caused by viruses that normally infect 【S1】______
only birds and, less commonly, pigs. Avian influenza viruses are
highly species-specific, but have, on rare occasions, crossed the
species barrier to infecting humans. 【S2】______
In domestic poultry (家禽), infection with avian influenza
viruses cause two main forms of disease, distinguished by 【S3】______
low and high extremes of virulence (毒性). The so-called
"low pathogenic (病原的)" form. commonly causes only mild
symptoms and may easily go undetected. The highly pathogenic
form. is far more dramatic. It spreads very rapidly through
poultry flocks, causes disease affecting multiple external organs, 【S4】______
and has a mortality that can approach 100%, often within 48
hours.
Bird flu is not the same as SARS. Because their symptoms 【S5】______
are similar, SARS is caused by completely different viruses.
Influenza viruses also are more infectious and cannot be as
readily contained as SARS isolating people who have the 【S6】______
infection.
The current outbreak of bird flu is different from earlier
ones in that officials have been unable to contain its spread. An
outbreak in 1997 in Hong Kong was the first time the virus had
spread to people, but it was much more quickly contained. A
total of 18 people were hospitalized with six reporting deaths. 【S7】______
About 1.5 million chickens were killed by an effort to remove 【S8】______
the source of the virus.
Unlike the 1997 scare, this outbreak has spread more rapidly
to other countries, increasing its exposure on people in varied 【S9】______
locations and raised the likelihood that the strain will combine 【S10】______
with a human influenza virus.
【S1】
The computer virus is an outcome of the computer overgrowth in
the 1980s. The cause of this term is the likeness between the biological
virus and the evil program infected with computers. The origin of this
term came an American science fiction "The Adolescence of P-1" written 【S1】______
by Thomas J. Ryan published in 1977. Human viruses invade a living
cell and turn them into a factory for manufacturing viruses. 【S2】______
Therefore, computer viruses are small programs. They replicate by attaching 【S3】______
a copy of themselves to another program.
Once attached by host program, the viruses then look for other programs 【S4】______
to" infect". In this way, the virus can spread quickly throughout a
hard disk or an entire organization. At some points, the situation will be 【S5】______
totally determined by how the virus was programmed. The timing of the
attack can be linked to a number of situations, included a certain time 【S6】______
or date, the presence of a particular file, the security privilege level of
the user and the number of times a file is used. So-called" benign" viruses
might simply display a message, like the one that infected IBM's
main computer system last Christmas with a season's greeting. Malignant
viruses are designed to damage the system. The attack is to wiping 【S7】______
out data, to delete files or to format the hard disk.
There are two main types of viruses: shell and intrusive system.
Shell viruses wrap themselves around a host program and don't modify
the original program. Shell programs are easy to write, that is why about 【S8】______
half of viruses are of this type. Intrusive viruses invade an existing program
and actual insert a portion of themselves into the host program. 【S9】______
Intrusive viruses are hard to write and very difficult to remove with 【S10】______
damaging the host file.
【S1】
Hepatitis (肝炎) means "inflammation (发火) of the liver", and its
most common cause is infected with one of 5 viruses, called hepatitis 【S1】______
A, B, C, D, and E. All of these viruses can cause an acute disease with
symptoms lasting several weeks including yellowing of the skin and
eyes, dark urine, extreme fatigue, vomiting and abdominal pain. It can
take several months for a year to feel fit again. 【S2】______
Hepatitis C (HCV) is the most prevalent liver disease in the world.
The World Health Organization consider Hepatitis C an epidemic. 【S3】______
Because Hepatitis C can infect a patient for decades after being 【S4】______
discovered, it is often called the "silent" epidemic. According to the
Center for Disease Control (CDC), 20-30% of people with chronic
Hepatitis C will eventually face life-threatened symptoms. 【S5】______
Currently, it is estimated there are about 270 to 300 million people
worldwide who are infected with HCV, 4 million of who are in the 【S6】______
United States. The prevalence seems to be high in Eastern Europe than 【S7】______
in Western Europe. In industrialized countries, HCV accounts of 20% 【S8】______
of cases of acute hepatitis, 70% of cases of chronic hepatitis, 40%
of cases of end-stage cirrhosis (硬化), 60% of cases of liver cancer
and 30-40% of liver transplants. The incidence of new symptomatic
infections of HCV have been estimated to be 13 cases out of 100,000 【S9】______
people annually. For every one person that is infected with the AIDS
virus, there are more than four infected with HCV. The CDC (Center
for Disease Control) estimates that there arc up to 26,000 new HCV
infections in the U.S. every year, and for that Hepatitis C causes 10,000 【S10】______
to 12,000 deaths each year.
【S1】
听力原文： Why do we cry？ Can you imagine life without tears？
Not only do tears keep your eyes lubricated, they also contain a substance that kills certain bacteria so they can't infect your eyes. Give up your tears and you lose this on-the-spot defence.
Nor would you want to give up the flood of extra tears you produce when you get something physical or chemical in your eyes. Tears are very good at washing this irritating stuff out.
Another thing you couldn't do without your tears is cry - from joy, anger, or sadness.
Humans are the only animals that produce tears in response to emotions. And most people say a good cry makes them feel better.
Many scientists, therefore, believe that crying somehow helps us cope with emotional situations. Tear researcher William Frey is trying to figure out how it happens.
One possibility, he says, is that tears discharge certain chemicals from your body, chemicals that build up during stress. "When people talk about 'crying it out,' I think that might actually be what they are doing," he says.
If Frey is right, what do you think will happen to people who restrain their tears？ Boys, for example, cry only about a quarter as often as girls once they reach their teenage years. And we all cry a lot less now than we did as babies.
Could it possibly be that we face less stress？ Maybe we've found other ways to deal with it. Or maybe we just feel embarrassed.
(33)
A．Why people hold back their tears.
B．Why people cry.
C．How to restrain one's tears.
D．How tears are produced.
听力原文： We have met the enemy, and he is ours. We bought him at a pet shop. When monkey-pox, a disease usually found in the African rain forest, suddenly turns up in children in the American Midwest, it's hard not to wonder if the disease that comes from foreign animals is homing in on human beings. "Most of the infections we think of as human infections started in other animals," says Stephen Morse, director of the Center for Public Health Preparedness at Columbia University.
It's not just that we're going to where the animals are; we're also bringing them closer to us. Popular foreign pets have brought a whole new disease to this country. A strange illness killed Isaksen's pets, and she now thinks that keeping foreign pets is a bad idea. "I don't think it's fair to have them as pets when we have such a limited knowledge of them," says Isaksen.
"Laws allowing these animals to be brought in from deep forest areas without stricter control need changing," says Peter Schantz. Monkey-pox may be the wake-up call. Researchers believe infected animals may infect their owners. We know very little about these new diseases. A new bug may be kind at first. But some strains may become harmful. Monkey-pox doesn't look like a major infectious disease. But it is not impossible to pass the disease from person to person.
Questions 33 to 35 are based on the passage you have just heard.
33. What do we learn about the pet sold at the shop？
34. Why did Isaksen advise people not to have foreign pets？
35. What does the passage suggest we may have to do in the future？
(30)
A．It may come from Columbia.
B．It may suffer from monkey-pox.
C．It may enjoy being with children.
D．It may prevent us from being infected.
听力原文： (32)Why do we cry？ Can you imagine life without tears？
Not only do tears keep your eyes lubricated, they also contain a substance that kills certain bacteria so they can't infect your eyes. Give up your tears, and you' 11 lose this on-the-spot defense. Nor would you want to give up the flood of extra tears you produce when you get something physical or chemical in your eyes. Tears are very good at washing this irritating stuff out.
Another thing you couldn't do without your tears is cry--from joy. anger or sadness.
(33)Humans are the only animals that produce tears in response to emotions. And most people say a good cry makes them feel better. (35)Many scientists, therefore, believe that crying somehow helps us cope with emotional situations. Tear researcher, William Frey, is trying to figure out how it happens. "One possibility", he says," is that tears discharge certain chemicals from your body, which build up during stress. When people talk about 'crying it out', I think that might actually be what they are doing."
If Frey is right, what do you think will happen to people who restrain their tears？ (34)Boys, for example, cry only about a quarter as often as girls once they reach their teenage years. And we all cry a lot less now than we did as babies. Could it possibly be that we face less stress？ Maybe we've found other ways to deal with it. Or maybe we just feel embarrassed.
(33)
A．Why people hold back their tears.
B．Why people cry.
C．How to restrain one's tears.
D．How tears are produced.
