Heart（）

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

共用题干
World Heart Day



Sunday was World Heart Day.The World Heart Federation and its member groups in

more than one hundred countries organized the celebrations.The World Health

Organization and other United Nations agencies provided support for the__________(1).

World Heart Day was first observed six years________(2).Organizers proposed

the event as a way to help reduce the spread of heart disease.The World Heart Federation

says heart_________(3)kills seventeen million people each year.

The group urges people to be active and have a good,healthy diet.It also warns

_________(4)activities known to increase a person's risk of heart attack or stroke.

Some of the warnings are directed at children.The World Heart Federation says about

twenty-two million boys and girls under the age of five are obese-severely overweight.

Children are normally energetic and active.________(5),two thirds of all

children are not active enough.Such children greatly__________(6)their risk of

becoming obese.They also increase their_________(7)of developing heart disease or

other disorders.

One message of World Heart Day is to eat right.Children__________(8)eat a

healthy and balanced diet.Also,limit sugary drinks,sweets and eating between meals.

The World Heart Federation urges parents to keep their children__________(9).It

says physical exercise helps to decrease the risk of obesity and_______(10)a child

healthy.Obese children often become obese adults.________(11)you believe your

child is too heavy,talk with a health care provider.

The World Heart Federation is also concerned about the effects of tobacco on young

people.It says the younger someone begins to smoke,the_________(12)the chance

of a health problem tied to smoking.Half of the young people who continue to smoke are

________(13)to die later in life from a smoking-related disease.

The group says almost half of all children live with a smoker. It says children who live

with a_________(14)can breathe an amount of tobacco equal to more than two

thousand cigarettes.And that is by the time they are five years old.

The World Heart Federation also says parents should warn children not to be

______(15)by tobacco companies.And it says parents who smoke should try to stop.

_________(10)
A:maintains
B: protects
C: keeps
D:helps

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

共用题干
第一篇

Human Heart can Make New Cells

Solving a longstanding（为时甚久的）mystery, scientists have found that the human heart continues to
generate new cardiac（心脏的）cells throughout the life span, although the rate of new cell production slows
with age.
The finding,published in the April 3rd issue of Science,could open a new path for the treatment of heart
diseases such as heart failure and heart attack,experts say.
"We find that the beating cells in the heart, cardiomyocytes（心肌细胞）,are renewed," said lead
researcher Dr. Jonas Frisen,a professor of stem cell research at the Karolinska Institute in Stockholm,
Sweden."It has previously not been known whether we were limited to the cardiomyocytes we were born with
or whether they could be renewed,"he said.
"The process of renewing these cells changes over time,"Frisen added. In a 20-year-old,about 1
percent of cardiomyocytes are exchanged each year , but the turnover（更替）rate decreases with age to only
0.45 percent by age 75.
"If we can understand how the generation of new cardiomyocytes is regulated,it may be potentially
possible to develop pharmaceuticals（药物）that promote this process to stimulate regeneration after , for
example,a heart attack,"Frisen said.
That could lead to treatment that helps restore damaged hearts.
"A lot of people suffer from chronic heart failure,."noted co-author Dr. Ratan Bhardwaj,also from the
Karolinska Institute."Chronic heart failure arises from heart cells dying," he said.
"With this finding,scientists are opening the door to potential therapies（疗法）,to having ourselves heal
ourselves,"Bhardwaj said."Maybe one could devise a pharmaceutical agent that would make heart cells
make new and more cells to overcome the problem they are facing."
But barriers remain.According to Bhardwaj,scientists do not yet know how to increase heart cell
production to a rate that would replace cells faster than they are dying off,especially in older patients with
heart failure.In addition,the number of new cells the heart produces was estimated using healthy hearts一
whether the rate of cell turnover in diseased hearts is the same remains unknown.

Chronic heart failure is attributed to _________.
A:the dying heart cells
B:the effect of pharmaceuticals
C:the weight of the patient
D:the life span of a person

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 5______
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 Disease
E:How to Control the Levels of NT-proBNP
F:Effects of NT-proBNP on Heart Disease

共用题干
第一篇

Human Heart can Make New Cells

Solving a longstanding（为时甚久的）mystery, scientists have found that the human heart continues to
generate new cardiac（心脏的）cells throughout the life span, although the rate of new cell production slows
with age.
The finding,published in the April 3rd issue of Science,could open a new path for the treatment of heart
diseases such as heart failure and heart attack,experts say.
"We find that the beating cells in the heart, cardiomyocytes（心肌细胞）,are renewed," said lead
researcher Dr. Jonas Frisen,a professor of stem cell research at the Karolinska Institute in Stockholm,
Sweden."It has previously not been known whether we were limited to the cardiomyocytes we were born with
or whether they could be renewed,"he said.
"The process of renewing these cells changes over time,"Frisen added. In a 20-year-old,about 1
percent of cardiomyocytes are exchanged each year , but the turnover（更替）rate decreases with age to only
0.45 percent by age 75.
"If we can understand how the generation of new cardiomyocytes is regulated,it may be potentially
possible to develop pharmaceuticals（药物）that promote this process to stimulate regeneration after , for
example,a heart attack,"Frisen said.
That could lead to treatment that helps restore damaged hearts.
"A lot of people suffer from chronic heart failure,."noted co-author Dr. Ratan Bhardwaj,also from the
Karolinska Institute."Chronic heart failure arises from heart cells dying," he said.
"With this finding,scientists are opening the door to potential therapies（疗法）,to having ourselves heal
ourselves,"Bhardwaj said."Maybe one could devise a pharmaceutical agent that would make heart cells
make new and more cells to overcome the problem they are facing."
But barriers remain.According to Bhardwaj,scientists do not yet know how to increase heart cell
production to a rate that would replace cells faster than they are dying off,especially in older patients with
heart failure.In addition,the number of new cells the heart produces was estimated using healthy hearts一
whether the rate of cell turnover in diseased hearts is the same remains unknown.

The human heart stops producing cardiac cells ______.
A:when a person becomes old
B:as soon as a person gets sick
C:immediately after a person is born
D:once a person dies

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

共用题干
第一篇

Human Heart can Make New Cells

Solving a longstanding（为时甚久的）mystery, scientists have found that the human heart continues to
generate new cardiac（心脏的）cells throughout the life span, although the rate of new cell production slows
with age.
The finding,published in the April 3rd issue of Science,could open a new path for the treatment of heart
diseases such as heart failure and heart attack,experts say.
"We find that the beating cells in the heart, cardiomyocytes（心肌细胞）,are renewed," said lead
researcher Dr. Jonas Frisen,a professor of stem cell research at the Karolinska Institute in Stockholm,
Sweden."It has previously not been known whether we were limited to the cardiomyocytes we were born with
or whether they could be renewed,"he said.
"The process of renewing these cells changes over time,"Frisen added. In a 20-year-old,about 1
percent of cardiomyocytes are exchanged each year , but the turnover（更替）rate decreases with age to only
0.45 percent by age 75.
"If we can understand how the generation of new cardiomyocytes is regulated,it may be potentially
possible to develop pharmaceuticals（药物）that promote this process to stimulate regeneration after , for
example,a heart attack,"Frisen said.
That could lead to treatment that helps restore damaged hearts.
"A lot of people suffer from chronic heart failure,."noted co-author Dr. Ratan Bhardwaj,also from the
Karolinska Institute."Chronic heart failure arises from heart cells dying," he said.
"With this finding,scientists are opening the door to potential therapies（疗法）,to having ourselves heal
ourselves,"Bhardwaj said."Maybe one could devise a pharmaceutical agent that would make heart cells
make new and more cells to overcome the problem they are facing."
But barriers remain.According to Bhardwaj,scientists do not yet know how to increase heart cell
production to a rate that would replace cells faster than they are dying off,especially in older patients with
heart failure.In addition,the number of new cells the heart produces was estimated using healthy hearts一
whether the rate of cell turnover in diseased hearts is the same remains unknown.

It is not known yet if the rate of cell turnover in diseased hearts_________.
A:is high enough to replace cells faster than they're dying off
B:is of any use to researchers
C:is the same as that in healthy hearts
D:changes over time