单选题Bypass surgery has been shown to be effective at helping extremely obese people lose weight. Some patients have lost as much as 300 pounds after undergoing the surgery, thereby substantially prolonging their lives. Despite the success of the treatment,

题目
单选题
Bypass surgery has been shown to be effective at helping extremely obese people lose weight. Some patients have lost as much as 300 pounds after undergoing the surgery, thereby substantially prolonging their lives. Despite the success of the treatment, most doctors have not embraced the surgery as a weight loss option.  Which of the following statements, if true, best accounts for the lukewarm reaction of the medical community to gastric bypass surgery?
A

Gastric bypass surgery carries a high risk of serious complications, including death.

B

Obesity is one of the leading contributors to heart disease and hypertension, two leading causes of death.

C

Obesity rates among the American population have been increasing consistently for the last three decades.

D

Many patients report that losing weight through diets is ineffective, since they usually gain the weight back within six months.

E

Most health insurance plans will cover the cost of gastric bypass surgery for morbidly obese patients at high risk of heart disease.

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相似问题和答案

第1题:

It can be inferred from the text that____.

[A] it is wise to have cosmetic surgery under 18

[B] cosmetic surgery is now much easier

[C] people tend to abuse cosmetic surgery

[D] the earlier people have cosmetic surgery, the better they will be


正确答案:B

本题考查全局事实细节。由38题的分析可知,连医生都不赞同18岁以下的人做美容手术,由此可排除[A]和[D]。第三段第一、二句提到,在英国,外科整形一向被视为富人和名人的专利。但是现在费用大幅度下降,使很多手术都面向大众。第四段首句也提到,在一下午的时间里,病人就可以完成脂肪注射、抽取手术。从技术的层面上也说明了做美容手术的容易可行。因此可知[B]正确。[C]“滥用”一词从文中无从推知。

第2题:

共用题干
Clinical Trials
1. Many clinical trials are done to see if a new drug or device is safe and effective for people to use.Sometimes clinical trials are used to study different ways to use the standard treatments so they will be more effective,easier to use,and/or decrease side effects.Sometimes,studies are done to learn how to best use the treatment in a different population,such as children,in whom the treatment was not previously tested.
2. It is important to test drugs and medical products in the people they are meant to help.It is also important to conduct research in a variety of people because different people may respond differently to treatments.Some people participate in clinical trials because they have exhausted standard treatment options .Other people participate in trials because they want to contribute to the ad-vancement of medical knowledge.
3. The FDA(食品及药物管理局)works to protect participants in clinical trials and to ensure that people have reliable information as they decide whether to join a clinical trial.Although efforts are made to control the risks to clinical trial participants,some risks may be unavoidable because of the uncertainty inherent(内在的)in medical research studies involving new medical treatments.
4. People should learn as much as possible about the clinical trials that interest them.They should also feel comfortable discussing their questions and concerns with members of the health care team. Prospective(预期的)participants should understand what happens during the trial ,the type of health care they will receive,and any costs to them.Anyone considering a clinical trial should also know that there are benefits and risks associated with participating.

Learn as much as you can about a clinical trial______.
A: candidates for clinical trials
B: during the trial
C: medical knowledge
D: in humans
E: before participation
F: for some patients

答案:E
解析:
第一段主要讲为什么要进行临床试验,其中谈到要研究如何安全有效地使用新药物或新仪器,如何使用方便并减少副作用,或用于不同人群等。


第二段主要讲什么人为什么参加临床试验,比方说,要观察不同人群的不同疗效,有的人已没有别的方法治疗,也有的人要为医疗事业作贡献等。


第三段主要讲参加临床试验的安全性问题。尽管FDA等会做出努力,但是新治疗方法的不确定性是不可避免的。


第四段主要讲人们参加临床试验前可以与有关医务人员充分讨论问题,了解试验的详情以及试验的利弊等。


短文第一句就说到,新药物或新仪器用于人体是否安全有效需要进行临床试验。


第二段第三句说到,有些人对于常规的治疗方法已无可选择,所以参加临床试验,当然就是他们的唯一希望了。


第三段第一句说到,FDA要保证,在人们决定是否参加临床试验的时候要获得可靠信,息。


整个第四段说到,准备参加临床试验的人们要尽可能多地了解有关临床试验的情况。

第3题:

Never before in China ________ for the farmers.

A.has so much been done

B.have so much been done

C.has been done so much

D.so much have been done


参考答案:A

第4题:

共用题干
Stem Cell Therapy May Help Repair the Heart
According to scientists in the USA,stem cell therapy may one day be able to repair the
hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine
examined 20 patients who had severe heart failure and were going to have surgery.
They injected stem cells into the parts of their hearts that were damaged.They then
compared their hearts with those of people who had undergone surgery without having the
stem cells injected into them(they had also suffered from severe heart failure).The
patients who had had the stem cells injected had hearts that were able to pump(用泵抽运)
more blood than the others.
According to Professor Robert Kormos,one of the researchers,these results could
revolutionize heart treatment.Although previous studies had indicated that there might be a
benefit,this is the first study that has actually proved that stem cell therapy can help the
failing heart work better.
All the patients in this study had hearts that could not pump blood properly.The
scientists measured their ejection fraction(射血分数).This is a measure of heart
performance;you measure how much blood is being pumped out by the left ventricle(心
室).
Healthy people's ejection fraction is about 55%.These patients had ejection fraction of
under 35%. They all had by-pass surgery(搭桥手术)performed on them. Some of the
patients had stem cells taken from their hip bones and injected into 25-30 sites in the
damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those
who just had surgery but no stem cell injections averaged 37. 2%.
No side effects were reported.
Heart failure is a common problem all over the world.In the UK alone about 650, 000
people suffer from heart failure every year. As the number of people suffering from heart
failure increases in the world in general these findings are particularly significant.
Current treatments relieve the symptoms.This new stem cell therapy actually repairs
the damaged muscle in the heart and has the potential of curing the disease.

The control group patients regretted not having had stem cell injections.
A:Right
B:Wrong
C:Not mentioned

答案:C
解析:

第5题:

共用题干
Stem Cell Therapy May Help Repair the Heart
According to scientists in the USA,stem cell therapy may one day be able to repair the
hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine
examined 20 patients who had severe heart failure and were going to have surgery.
They injected stem cells into the parts of their hearts that were damaged.They then
compared their hearts with those of people who had undergone surgery without having the
stem cells injected into them(they had also suffered from severe heart failure).The
patients who had had the stem cells injected had hearts that were able to pump(用泵抽运)
more blood than the others.
According to Professor Robert Kormos,one of the researchers,these results could
revolutionize heart treatment.Although previous studies had indicated that there might be a
benefit,this is the first study that has actually proved that stem cell therapy can help the
failing heart work better.
All the patients in this study had hearts that could not pump blood properly.The
scientists measured their ejection fraction(射血分数).This is a measure of heart
performance;you measure how much blood is being pumped out by the left ventricle(心
室).
Healthy people's ejection fraction is about 55%.These patients had ejection fraction of
under 35%. They all had by-pass surgery(搭桥手术)performed on them. Some of the
patients had stem cells taken from their hip bones and injected into 25-30 sites in the
damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those
who just had surgery but no stem cell injections averaged 37. 2%.
No side effects were reported.
Heart failure is a common problem all over the world.In the UK alone about 650, 000
people suffer from heart failure every year. As the number of people suffering from heart
failure increases in the world in general these findings are particularly significant.
Current treatments relieve the symptoms.This new stem cell therapy actually repairs
the damaged muscle in the heart and has the potential of curing the disease.

The 20 patients had stem cell injections instead of surgery.
A:Right
B:Wrong
C:Not mentioned

答案:B
解析:

第6题:

The text is mainly about _____.

[A] the advantage of having cosmetic surgery

[B] what kind of people should have cosmetic surgery

[C] the reason why cosmetic surgery is so popular

[D] the disadvantage of having cosmetic surgery


正确答案:C

本题考查文章主旨。全文首句利用数据(10年和400%)说明现在美容手术很受欢迎。第一段分析了人们做手术的心理原因。第二段表面上在谈论做美容手术的年龄,其实从侧面也说明了人们随着年龄的增长有做手术的需求。第三、四段分别从手术费用和技术发展两个角度分析手术越来越普及的原因。因此,[C]是全文主旨的概括。其他项都是文章某一部分涉及的内容,不足以说明整篇文章的主旨大意,以偏概全,不入选。

第7题:

共用题干
Stem Cell Therapy May Help Repair the Heart
According to scientists in the USA,stem cell therapy may one day be able to repair the
hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine
examined 20 patients who had severe heart failure and were going to have surgery.
They injected stem cells into the parts of their hearts that were damaged.They then
compared their hearts with those of people who had undergone surgery without having the
stem cells injected into them(they had also suffered from severe heart failure).The
patients who had had the stem cells injected had hearts that were able to pump(用泵抽运)
more blood than the others.
According to Professor Robert Kormos,one of the researchers,these results could
revolutionize heart treatment.Although previous studies had indicated that there might be a
benefit,this is the first study that has actually proved that stem cell therapy can help the
failing heart work better.
All the patients in this study had hearts that could not pump blood properly.The
scientists measured their ejection fraction(射血分数).This is a measure of heart
performance;you measure how much blood is being pumped out by the left ventricle(心
室).
Healthy people's ejection fraction is about 55%.These patients had ejection fraction of
under 35%. They all had by-pass surgery(搭桥手术)performed on them. Some of the
patients had stem cells taken from their hip bones and injected into 25-30 sites in the
damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those
who just had surgery but no stem cell injections averaged 37. 2%.
No side effects were reported.
Heart failure is a common problem all over the world.In the UK alone about 650, 000
people suffer from heart failure every year. As the number of people suffering from heart
failure increases in the world in general these findings are particularly significant.
Current treatments relieve the symptoms.This new stem cell therapy actually repairs
the damaged muscle in the heart and has the potential of curing the disease.

Heart failure is more common in the UK than anywhere else in the world.
A:Right
B:Wrong
C:Not mentioned

答案:C
解析:

第8题:

Text 4

Over the last decade, demand for the most common cosmetic surgery procedures, like breast enlargements and nose jobs, has increased by more than 400 percent. According to Dr. Dai Davies, of the Plastic Surgery Partnership in Hammersmith, the majority of cosmetic surgery patients are not chasing physical perfection. Rather, they are driven to fantastic lengths to improve their appearance by a desire to look normal. “What we all crave is to look normal, and normal is what is prescribed by the advertising media and other external pressures. They give us a perception of what is physically acceptable and we feel we must look like that.”

In America, the debate is no longer about whether surgery is normal; rather, it centres on what age people should be before going under the knife. New York surgeon Dr. Gerard Imber recommends “maintenance” work for people in their thirties. “The idea of waiting until one needs a heroic transformation is silly,” he says. “By then, you’ve wasted 20 great years of your life and allowed things to get out of hand.” Dr. Imber draws the line at operating on people who are under 18, however. “It seems that someone we don’t consider old enough to order a drink shouldn’t be considering plastic surgery.”

In the UK cosmetic surgery has long been seen as the exclusive domain of the very rich and famous. But the proportionate cost of treatment has fallen substantially, bringing all but the most advanced laser technology within the reach of most people. Dr. Davies, who claims to “cater for the average person”, agrees. He says:“I treat a few of the rich and famous and an awful lot of secretaries. Of course, £3,000 for an operation is a lot of money. But it is also an investment for life which costs about half the price of a good family holiday.”

Dr. Davies suspects that the increasing sophistication of the fat injecting and removal techniques that allow patients to be treated with a local anaesthetic in an afternoon has also helped promote the popularity of cosmetic surgery. Yet, as one woman who recently paid £2,500 for liposuction to remove fat from her thighs admitted, the slope to becoming a cosmetic surgery Veteran is a deceptively gentle one. “I had my legs done because they’d been bugging me for years. But going into the clinic was so low key and effective it whetted my appetite. Now I don’t think there’s any operation that I would rule out having if I could afford it.”

第36题:1. According to the text, the reason for cosmetic surgery is to _____.

[A] be physically healthy

[B] look more normal

[C] satisfy appetite

[D] be accepted by media


正确答案:B

本题考查事实细节。第一段第二、三句引用戴维斯博士的观点指出,大多数人做整形手术不是为了追求身体的完美,而是希望看起来比较正常(a desire to look normal)。因此[B]正确,排除[A]。该段最后部分引用戴维斯博士的话,指出正常的标准是被广告媒体等所界定的,因此它们告诉我们什么是被人认可的外观。这只能说明媒体的宣传影响了我们的审美标准,不能说明做手术最终是为了迎合媒体。[C]明显错误,它只是出现了文章中的个别词汇。

第9题:

共用题干
Stem Cell Therapy May Help Repair the Heart
According to scientists in the USA,stem cell therapy may one day be able to repair the
hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine
examined 20 patients who had severe heart failure and were going to have surgery.
They injected stem cells into the parts of their hearts that were damaged.They then
compared their hearts with those of people who had undergone surgery without having the
stem cells injected into them(they had also suffered from severe heart failure).The
patients who had had the stem cells injected had hearts that were able to pump(用泵抽运)
more blood than the others.
According to Professor Robert Kormos,one of the researchers,these results could
revolutionize heart treatment.Although previous studies had indicated that there might be a
benefit,this is the first study that has actually proved that stem cell therapy can help the
failing heart work better.
All the patients in this study had hearts that could not pump blood properly.The
scientists measured their ejection fraction(射血分数).This is a measure of heart
performance;you measure how much blood is being pumped out by the left ventricle(心
室).
Healthy people's ejection fraction is about 55%.These patients had ejection fraction of
under 35%. They all had by-pass surgery(搭桥手术)performed on them. Some of the
patients had stem cells taken from their hip bones and injected into 25-30 sites in the
damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those
who just had surgery but no stem cell injections averaged 37. 2%.
No side effects were reported.
Heart failure is a common problem all over the world.In the UK alone about 650, 000
people suffer from heart failure every year. As the number of people suffering from heart
failure increases in the world in general these findings are particularly significant.
Current treatments relieve the symptoms.This new stem cell therapy actually repairs
the damaged muscle in the heart and has the potential of curing the disease.

Stem cell therapy seems to have great prospects.
A:Right
B:Wrong
C:Not mentioned

答案:A
解析:

第10题:

Thinner isn’t always better.A number of studies have 1_that normal-weight people are in fact at higher risk of some diseases compared to those who are overweight.And there are health conditions for which being overweight is actually_2_.For example,heavier women are less likely to develop calcium deficiency than thin women.3 among the elderly,being somewhat overweight is often an_4 of good health.Of even greater 5 is the fact that obesity turns out to be very difficult to define.It is often defined 6_body mass index,or BMI.BMI 7 body mass divided by the square of height.An adult with a BMI of 18 to 25 is often considered to be normal weight.Between 25 and 30 is overweight.And over 30 is considered obese.Obesity,8,can be divided into moderately obese,severely obese,and very severely obese.While such numerical standards seem 9,they are not.Obesity is probably less a matter of weight than body fat.Some people with a high BMI are in fact extremely fit,10 others with a low BMI may be in poor 11.For example,many collegiate and professional football players 12 as obese,though their percentage body fat is low.Conversely,someone with a small frame may have high body fat but a 13 BMI.Today we have a(an)_14_to label obesity as a disgrace.The overweight are sometimes_15_in the media with their faces covered.Stereotypes_16_with obesity include laziness,lack of will power,and lower prospects for success.Teachers,employers,and health professionals have been shown to harbor biases against the obese._17_very young children tend to look down on the overweight,and teasing about body build has long been a problem in schools.Negative attitudes toward obesity,_18_in health concerns,have stimulated a number of anti-obesity_19_.My own hospital system has banned sugary drinks from its facilities.Many employers have instituted weight loss and fitness initiatives.Michelle Obama launched a high-visibility campaign_20_childhood obesity,even claiming that it represents our greatest national security threat.12选?

A.start
B.quality
C.retire
D.stay

答案:B
解析:
词义辨析【直击答案】本句顺应前文意义:有一些人体型很好,有些人体型肥胖。接着举例说有些专业足球运动员是肥胖的,然而他们的身体脂肪量却很低。B项qualify“被认为”符合句意,正确。【命题思路】本题考查对上下文句意的正确把握。【干扰排除】将A、C、D项代入文中,“开始”、“退休”和“停留”不符合句意。

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