共用题干 第二篇High Stress May Damage MemoryAccording to a report issued in May 1998,elderly people who have consistently high blood levels of cortisol (皮质醇)don't score as well on memory tests as their peers with lower levels of the stress hormone. What's more,h

题目
共用题干
第二篇

High Stress May Damage Memory

According to a report issued in May 1998,elderly people who have consistently high
blood levels of cortisol (皮质醇)don't score as well on memory tests as their peers with
lower levels of the stress hormone. What's more,high levels of cortisol are also associated
with shrinking of the hippocampus(海马区),a region of the brain that plays a key role in
learning and memory.
The findings suggest that even cortisol levels in the normal,"healthy"range can
actually accelerate brain aging.
The study results"now provide substantial evidence that long-term exposure to adrenal
(肾上腺的)stress hormones may promote hippocampal aging in normal elderly humans",
write Nada Porter and Philip Landfield.Cortisol is a hormone released in response to stress
by the adrenal glands(腺),which sit on top of the kidneys(肾).
Over a 5-to 6-year period,Dr. Sonia Lupien and his colleagues measured 24-hour
cortisol levels in 51 healthy volunteers,most of whom were in their 70s.
The researchers tested the volunteers' memory on six people in the increasing/high
category and five people in the decreasing/moderate group.The groups did not differ in
tests of immediate memory,but the increasing/high cortisol group had other memory
problems compared with those in the decreasing/moderate group.
The researchers also found that the total volume of the hippocampus in those in the
increasing/high group was 14% lower than those in the decreasing/moderate group,
although there were no differences in other brain regions.
The results suggest that“…brain aging can be accelerated by levels of adrenal
hormones that are not generally regarded as pathological(病态的)and that variation within
this normal range is related to variation in the rate of brain aging",write Porter and
Landfield."This further suggests that chronic stress may accelerate the worsening of the
hippocampus."

It appears that when the hippocampus shrinks due to high levels of cortisol,other brain regions
A:may change dramatically.
B:may stop functioning.
C:may remain unaffected.
D:may be seriously damaged,
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相似问题和答案

第1题:

共用题干
Napping to a Healthier Heart?

1 Researchers say they have developed a simple test that can tell if a person with heart disease is
likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people
with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about
four years,they studied almost one thousand patients with heart disease.The researchers tested the heart
disease patients for a protein called NT-proBNP. Patients with the highest levels were nearly eight times more
likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart
muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for
sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP
were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart
disease patient should affect that person’s treatment.They also would like to know if more aggressive
treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the
Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated
study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries
like the United States,afternoon naps are mostly for children. But they are common for adults in
Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the
United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part
in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three
times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take
naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research
suggests that naps are especially good for working men.But they say not enough female subjects died during
the study to judge the benefits for women.

According to some researchers,by measuring the levels of NT-proBNP in the blood people mayknow ________.
A: where fewer pepole die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:B
解析:
由第二段后面两句可知,通过检查心脏病人的NT-proBNP水平,发现水平最高的病人 与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现老年男性且患有糖尿病和高血压者 NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人蛋白质水平 是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病和中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学 和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几 率低37%。
答案来源于第一段的第二、三句。
答案来源于第三段第一句。
答案来源于第五段第一、二句和该段最后一句。
答案来源于第三段第二句和文章的最后一句。第4部分:阅读理解第一篇 本篇文章主要讲述了普通感冒的传播特点及其预防和治疗。

第2题:

共用题干
Napping to a Healthier Heart?
1 Researchers say they have developed a simple test that can tell if a person with heart disease is likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about four years,they studied almost one thousand patients with heart disease.The researchers tested the heart disease patients for a protein called NT-proBNP.Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart disease patient should affect that person's treatment.They also would like to know if more aggressive treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries like the United States,afternoon naps are mostly for children.But they are common for adults in Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research suggests that naps are especially good for working men.But they say not enough female subjects died during the study to judge the benefits for women.

If a person has a high level of NT-proBNP______.
A:where fewer people die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:E
解析:
第二段主要介绍了加利福尼亚大学一个团队所进行的研究。通过检查心脏病人的NT-proBNP水平,发现水平最高的病人与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现年老且患有糖尿病或高血压者NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人的蛋白质水平是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病或中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几率低37%。
由第一段最后两句可知,研究人员检测血液中蛋白质的水平,他们称血液中这种蛋白质水平高的人得心脏病或中风的几率高,故选B。
由第三段第一句可知,血液中含有高浓度的该种蛋白质证明心肌受到了压迫。
由文章第五段的内容可知,定期午睡的人患心脏病的几率更低。
由第三段第二句和文章的最后一句可知,研究对象多为男性,并且由于在调查期间女性研究对象死亡的并不多,所以无法判断午睡对女性的影响。

第3题:

共用题干
Napping to a Healthier Heart?

1 Researchers say they have developed a simple test that can tell if a person with heart disease is
likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people
with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about
four years,they studied almost one thousand patients with heart disease.The researchers tested the heart
disease patients for a protein called NT-proBNP. Patients with the highest levels were nearly eight times more
likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart
muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for
sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP
were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart
disease patient should affect that person’s treatment.They also would like to know if more aggressive
treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the
Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated
study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries
like the United States,afternoon naps are mostly for children. But they are common for adults in
Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the
United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part
in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three
times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take
naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research
suggests that naps are especially good for working men.But they say not enough female subjects died during
the study to judge the benefits for women.

If a person has a high level of NT-proBNP_________.
A: where fewer pepole die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:E
解析:
由第二段后面两句可知,通过检查心脏病人的NT-proBNP水平,发现水平最高的病人 与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现老年男性且患有糖尿病和高血压者 NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人蛋白质水平 是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病和中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学 和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几 率低37%。
答案来源于第一段的第二、三句。
答案来源于第三段第一句。
答案来源于第五段第一、二句和该段最后一句。
答案来源于第三段第二句和文章的最后一句。第4部分:阅读理解第一篇 本篇文章主要讲述了普通感冒的传播特点及其预防和治疗。

第4题:

共用题干
Napping to a Healthier Heart?
1 Researchers say they have developed a simple test that can tell if a person with heart disease is likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about four years,they studied almost one thousand patients with heart disease.The researchers tested the heart disease patients for a protein called NT-proBNP.Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart disease patient should affect that person's treatment.They also would like to know if more aggressive treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries like the United States,afternoon naps are mostly for children.But they are common for adults in Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research suggests that naps are especially good for working men.But they say not enough female subjects died during the study to judge the benefits for women.

People who take regular afternoon naps______.
A:where fewer people die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:C
解析:
第二段主要介绍了加利福尼亚大学一个团队所进行的研究。通过检查心脏病人的NT-proBNP水平,发现水平最高的病人与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现年老且患有糖尿病或高血压者NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人的蛋白质水平是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病或中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几率低37%。
由第一段最后两句可知,研究人员检测血液中蛋白质的水平,他们称血液中这种蛋白质水平高的人得心脏病或中风的几率高,故选B。
由第三段第一句可知,血液中含有高浓度的该种蛋白质证明心肌受到了压迫。
由文章第五段的内容可知,定期午睡的人患心脏病的几率更低。
由第三段第二句和文章的最后一句可知,研究对象多为男性,并且由于在调查期间女性研究对象死亡的并不多,所以无法判断午睡对女性的影响。

第5题:

共用题干
Napping to a Healthier Heart?

1 Researchers say they have developed a simple test that can tell if a person with heart disease is
likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people
with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about
four years,they studied almost one thousand patients with heart disease.The researchers tested the heart
disease patients for a protein called NT-proBNP. Patients with the highest levels were nearly eight times more
likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart
muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for
sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP
were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart
disease patient should affect that person’s treatment.They also would like to know if more aggressive
treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the
Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated
study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries
like the United States,afternoon naps are mostly for children. But they are common for adults in
Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the
United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part
in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three
times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take
naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research
suggests that naps are especially good for working men.But they say not enough female subjects died during
the study to judge the benefits for women.

So far there have not been definite data to confirm _______.
A: where fewer pepole die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:F
解析:
由第二段后面两句可知,通过检查心脏病人的NT-proBNP水平,发现水平最高的病人 与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现老年男性且患有糖尿病和高血压者 NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人蛋白质水平 是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病和中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学 和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几 率低37%。
答案来源于第一段的第二、三句。
答案来源于第三段第一句。
答案来源于第五段第一、二句和该段最后一句。
答案来源于第三段第二句和文章的最后一句。第4部分:阅读理解第一篇 本篇文章主要讲述了普通感冒的传播特点及其预防和治疗。

第6题:

共用题干
Napping to a Healthier Heart?
1 Researchers say they have developed a simple test that can tell if a person with heart disease is likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about four years,they studied almost one thousand patients with heart disease.The researchers tested the heart disease patients for a protein called NT-proBNP.Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart disease patient should affect that person's treatment.They also would like to know if more aggressive treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries like the United States,afternoon naps are mostly for children.But they are common for adults in Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research suggests that naps are especially good for working men.But they say not enough female subjects died during the study to judge the benefits for women.

According to some researchers,by measuring the levels of NT-proBNP in the blood people may know______.
A:where fewer people die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:B
解析:
第二段主要介绍了加利福尼亚大学一个团队所进行的研究。通过检查心脏病人的NT-proBNP水平,发现水平最高的病人与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现年老且患有糖尿病或高血压者NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人的蛋白质水平是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病或中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几率低37%。
由第一段最后两句可知,研究人员检测血液中蛋白质的水平,他们称血液中这种蛋白质水平高的人得心脏病或中风的几率高,故选B。
由第三段第一句可知,血液中含有高浓度的该种蛋白质证明心肌受到了压迫。
由文章第五段的内容可知,定期午睡的人患心脏病的几率更低。
由第三段第二句和文章的最后一句可知,研究对象多为男性,并且由于在调查期间女性研究对象死亡的并不多,所以无法判断午睡对女性的影响。

第7题:

共用题干
Napping to a Healthier Heart?

1 Researchers say they have developed a simple test that can tell if a person with heart disease is
likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people
with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about
four years,they studied almost one thousand patients with heart disease.The researchers tested the heart
disease patients for a protein called NT-proBNP. Patients with the highest levels were nearly eight times more
likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart
muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for
sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP
were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart
disease patient should affect that person’s treatment.They also would like to know if more aggressive
treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the
Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated
study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries
like the United States,afternoon naps are mostly for children. But they are common for adults in
Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the
United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part
in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three
times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take
naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research
suggests that naps are especially good for working men.But they say not enough female subjects died during
the study to judge the benefits for women.

People who take regular afternoon naps _________.
A: where fewer pepole die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:C
解析:
由第二段后面两句可知,通过检查心脏病人的NT-proBNP水平,发现水平最高的病人 与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现老年男性且患有糖尿病和高血压者 NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人蛋白质水平 是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病和中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学 和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几 率低37%。
答案来源于第一段的第二、三句。
答案来源于第三段第一句。
答案来源于第五段第一、二句和该段最后一句。
答案来源于第三段第二句和文章的最后一句。第4部分:阅读理解第一篇 本篇文章主要讲述了普通感冒的传播特点及其预防和治疗。

第8题:

共用题干
Napping to a Healthier Heart?

1 Researchers say they have developed a simple test that can tell if a person with heart disease is
likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people
with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about
four years,they studied almost one thousand patients with heart disease.The researchers tested the heart
disease patients for a protein called NT-proBNP. Patients with the highest levels were nearly eight times more
likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart
muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for
sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP
were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart
disease patient should affect that person’s treatment.They also would like to know if more aggressive
treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the
Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated
study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries
like the United States,afternoon naps are mostly for children. But they are common for adults in
Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the
United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part
in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three
times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take
naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research
suggests that naps are especially good for working men.But they say not enough female subjects died during
the study to judge the benefits for women.

Paragraph 3 ________
A:More Questions to Be Asked
B:Older Males Have Higher Levels of NT-proBNP
C:Development of a Simple But Important Test
D:Evidence of Positive Relationship Between Napping and Heart Discase
E: How to Control the Levels of NT- proBNP
F: Effects of NT-proBNP on Heart Disease

答案:B
解析:
由第二段后面两句可知,通过检查心脏病人的NT-proBNP水平,发现水平最高的病人 与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现老年男性且患有糖尿病和高血压者 NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人蛋白质水平 是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病和中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学 和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几 率低37%。
答案来源于第一段的第二、三句。
答案来源于第三段第一句。
答案来源于第五段第一、二句和该段最后一句。
答案来源于第三段第二句和文章的最后一句。第4部分:阅读理解第一篇 本篇文章主要讲述了普通感冒的传播特点及其预防和治疗。

第9题:

共用题干
Dangers Await Babies with Altitude
Women who live in the world's highest communities tend to give birth to underweight babies, a new study suggests.These babies may grow into adults with a high risk of heart disease and strokes.
Research has hinted that newborns in mountain communities are lighter than average.But it wasn't clear whether this is due to reduced oxygen levels at high altitude or because their mothers are under-nourished—many people who live at high altitudes are relatively poor compared with those living lower down.
To find out more,Dino Giussani and his team at Cambridge University studied the records of 400 births in Bolivia during 1997 and 1998 .The babies were born in both rich and poor areas of two cities:La Paz and Santa Cruz.La Paz is the highest city in the world,at 3 .65 kilometers above sea level,while Santa Cruz is much lower,at 0 .44 kilometers.
Sure enough,Giussani found that the average birthweight of babies in La Paz was significantly lower than in Santa Cruz.This was true in both high and low-income families.Even babies born to poor families in Santa Cruz were heavier on average than babies born to wealthy families in lofty La Paz.“We were very surprised by this result,”says Giussani.
The results suggest that babies born at high altitude are deprived of oxygen before birth.
“This may trigger the release or suppression of hormones that regulate growth of the unborn child,”says Giussani.
His team also found that high-altitude babies tended to have relatively larger heads compared with their bodies.This is probably because a fetus starved of oxygen will send oxygenated blood to the brain in preference to the rest of the body.
Giussani wants to find out if such babies have a higher risk of disease in later life.People born in La Paz might be prone to heart trouble in adulthood,for example.Low birthweight is a risk factor for coronary heart disease.And newborns with a high ratio of head size to body weight are often predisposed to high blood pressure and strokes in later life.

It can be learned from the last paragraph that______.
A: high-altitude babies tend to have high blood pressure in their later life
B: underweight babies have a shorter life span
C: babies born to poor families lack certain hormones before birth
D: newborns in wealthy families have larger heads compared with their bodies

答案:A
解析:
题干问新的研究发现是什么。由第一段第一句“Women who live… tend to give birth to underweight babies. ”可知,一项新的研究发现:居住在高海拔地区的女性易生出体重不足的婴儿,故选B。
由第四段首句“…the average birthweight of babies in La Paz was significantly lower than in Santa Cruz.”可知,Giussani发现高海拔的La Paz的婴儿平均出生体重比低海拔的Santa Cruz的婴儿平均出生体重低,故选A。
由第四段末句Giussani的话“We were very surprised by this result”可知,研究结果是出乎他们的意料的,故选A。
由第五段“The results suggest that babies born at high altitude are deprived of oxygen before birth.”可知,研究结果表明,在高海拔地带出生的婴儿出生前就缺氧,这也是造成其出生体重低的原因,故选D。
由最后一段“Low birthweight is a risk factor for coronary heart disease. And newborns with a high ratio of head size to body weight are often predisposed to high blood pressure and strokes in later life”可推断,在高海拔地带出生的婴儿在以后的生活中更容易患心脏病,而且头部相对较大的新生儿在以后的生活中更易患高血压及中风,故选A。

第10题:

共用题干
Napping to a Healthier Heart?
1 Researchers say they have developed a simple test that can tell if a person with heart disease is likely to suffer a heart attack.The test measures levels of a protein in the blood.The researchers say people with high levels of this protein are at high risk of heart attack,heart failure or stroke.
2 Kirsten Bibbins-Domingo of the University of California in San Francisco led the team.For about four years,they studied almost one thousand patients with heart disease.The researchers tested the heart disease patients for a protein called NT-proBNP.Patients with the highest levels were nearly eight times more likely than those with the lowest levels to have a heart attack,heart failure or stroke.
3 The researchers say the presence of high levels of the protein in the blood shows that the heart muscle is under pressure in some way.The study involved mostly men,so the researchers could not say for sure that the results are also true for women.They say the patients with the highest levels of NT-proBNP were older and had other problems like diabetes or high blood pressure.
4 Other researchers say more studies are needed to confirm if knowing the protein levels of a heart disease patient should affect that person's treatment.They also would like to know if more aggressive treatment could reduce the patient's chance of a heart attack or stroke.The study appeared in the Journal of the American Medical Association.
5 Could a little sleep during the middle of the day reduce the risk of a heart attack?An unrelated study earlier this month in the Archives of Internal Medicine suggests that the answer may be yes.In countries like the United States,afternoon naps are mostly for children.But they are common for adults in Mediterranean countries.And these countries generally have lower rates of heart disease.So scientists in the United States and Greece wondered if naps could play a part.Twenty-three thousand healthy adults took part in the study by Harvard University and the University of Athens.Those who took thirty-minute naps three times a week had a thirty-seven percent lower risk of death from heart problems than people who did not take naps.
6 The researchers say napping may improve heart health by reducing stress.They say the research suggests that naps are especially good for working men.But they say not enough female subjects died during the study to judge the benefits for women.

So far there have not been definite data to confirm______.
A:where fewer people die from heart problem
B:whether they have the risk of heart attack,heart failure or stroke
C:would probably have lower rates of heart disease
D:how to test a person's NT-proBNP level in the blood by himself
E:his heart muscle would be under pressure in some way
F:that napping is of great benefit to women too

答案:F
解析:
第二段主要介绍了加利福尼亚大学一个团队所进行的研究。通过检查心脏病人的NT-proBNP水平,发现水平最高的病人与水平最低的病人之间患心脏病的可能性相差近8倍。
第三段说到,研究涉及的多是男性,并发现年老且患有糖尿病或高血压者NT-proBNP的水平最高。
由第四段的内容可知,其他研究者认为还要确认一些问题,如心脏病病人的蛋白质水平是否影响其治疗;他们还想知道更多的积极治疗能否减少病人得心脏病或中风的机会。
第五段说到,地中海国家的成年人普遍都午睡,而且患心脏病的几率较低。哈佛大学和雅典大学的研究证明,每周午睡三次,每次30分钟的人比完全不午睡的人死于心脏病的几率低37%。
由第一段最后两句可知,研究人员检测血液中蛋白质的水平,他们称血液中这种蛋白质水平高的人得心脏病或中风的几率高,故选B。
由第三段第一句可知,血液中含有高浓度的该种蛋白质证明心肌受到了压迫。
由文章第五段的内容可知,定期午睡的人患心脏病的几率更低。
由第三段第二句和文章的最后一句可知,研究对象多为男性,并且由于在调查期间女性研究对象死亡的并不多,所以无法判断午睡对女性的影响。

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