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If you think a high-factor sunscreen(防晒霜)keeps you safe from harmful rays, you may be wrong. Research in this week's Nature shows that while factor 50 reduces the number of melanomas(黑瘤)and delays their occurrence, it can't prevent them. Melanomas are the most aggressive skin cancers. You have a higher risk if you have red or blond hair, fair skin, blue or green eyes, or sunburn easily, or if a close relative has had one. Melanomas are more common if you have periodic intense exposure to the sun. Other skin cancers are increasingly likely with long-term exposure.
There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer. A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed. A second study, comparing 1,167 people with melanomas to 1,101 who didn't have the cancer, found that using sunscreen routinely, alongside other protection such as hats, long sleeves or staying in the shade, did give some protection. This study said other forms of sun protection—not sunscreen—seemed most beneficial. The study relied on people remembering what they had done over each decade of their lives, so it's not entirely reliable. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.
Many people also don't use sunscreen properly-applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long. It is sunburn that is most worrying-recent shows five episodes of sunburn in the teenage years increases the risk of all skin cancers.
The good news is that a combination of sunscreen and covering up can reduce melanoma rates, as shown by Australian figures from their slip-slop-slap campaign. So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on(抹上)sunscreen and slap on a hat.
57.【题干】What is people's common expectation of a high-factor sunscreen?
A.It will delay the occurrence of skin cancer.
B.It will protect them from sunburn.
C.It will keep their skin smooth and fair.
D.It will work for people of any skin color.
【答案】B
58.【题干】What does the research in Nature say about a high-factor sunscreen?
A.It is ineffective in preventing melanomas.
B.It is ineffective in case of intense sunlight.
C.It is ineffective with long-term exposure.
D.It is ineffective for people with fair skin.
【答案】A
59.【题干】What do we learn from the 2011Australian study of 1,621 people?
A.Sunscreen should be applied alongside other protection measures.
B.High-risk people benefit the most from the application of sunscreen.
C.Irregular application of sunscreen does women more harm than good.
D.Daily application of sunscreen helps reduce the incidence of melanomas.
【答案】D
60.【题干】What does the author say about the second Australian study?
A.It misleads people to rely on sunscreen for protection.
B.It helps people to select the most effective sunscreen.
C.It is not based on direct observation of the subjects.
D.It confirms the results of the first Australian study.
【答案】C
61.【题干】What does the author suggest to reduce melanoma rates?
A.Using both covering up and sunscreen.
B.Staying in the shade whenever possible.
C.Using covering up instead of sunscreen.
D.Applying the right amount of sunscreen.
【答案】A
希望采纳，给点财富值吧
There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer. A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed. A second study, comparing 1,167 people with melanomas to 1,101 who didn't have the cancer, found that using sunscreen routinely, alongside other protection such as hats, long sleeves or staying in the shade, did give some protection. This study said other forms of sun protection—not sunscreen—seemed most beneficial. The study relied on people remembering what they had done over each decade of their lives, so it's not entirely reliable. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.
Many people also don't use sunscreen properly-applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long. It is sunburn that is most worrying-recent shows five episodes of sunburn in the teenage years increases the risk of all skin cancers.
The good news is that a combination of sunscreen and covering up can reduce melanoma rates, as shown by Australian figures from their slip-slop-slap campaign. So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on(抹上)sunscreen and slap on a hat.
57.【题干】What is people's common expectation of a high-factor sunscreen?
A.It will delay the occurrence of skin cancer.
B.It will protect them from sunburn.
C.It will keep their skin smooth and fair.
D.It will work for people of any skin color.
【答案】B
58.【题干】What does the research in Nature say about a high-factor sunscreen?
A.It is ineffective in preventing melanomas.
B.It is ineffective in case of intense sunlight.
C.It is ineffective with long-term exposure.
D.It is ineffective for people with fair skin.
【答案】A
59.【题干】What do we learn from the 2011Australian study of 1,621 people?
A.Sunscreen should be applied alongside other protection measures.
B.High-risk people benefit the most from the application of sunscreen.
C.Irregular application of sunscreen does women more harm than good.
D.Daily application of sunscreen helps reduce the incidence of melanomas.
【答案】D
60.【题干】What does the author say about the second Australian study?
A.It misleads people to rely on sunscreen for protection.
B.It helps people to select the most effective sunscreen.
C.It is not based on direct observation of the subjects.
D.It confirms the results of the first Australian study.
【答案】C
61.【题干】What does the author suggest to reduce melanoma rates?
A.Using both covering up and sunscreen.
B.Staying in the shade whenever possible.
C.Using covering up instead of sunscreen.
D.Applying the right amount of sunscreen.
【答案】A
希望采纳，给点财富值吧
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2015年6月英语四级仔细阅读练习与答案
The motor vehicle has killed and disabled more people in its brief history than any bomb or weapon ever invented. Much of the blood on the street flows essentially from uncivil behavior of drivers who refuse to respect the legal and moral rights of others. So the massacre on the road may be regarded as a social problem.
In fact, the enemies of society on wheels are rather harmless people or ordinary people acting carelessly, you might say. But it is a principle both of law and common morality that carelessness is no excuse when one's actions could bring death or damage to others. A minority of the killers go even beyond carelessness to total negligence.
Researchers have estimated that as many as 80 per cent of all automobile accidents can be attributed to the psychological condition of the driver. Emotional upsets can distort drivers' reactions, slow their judgment, and blind them to dangers that might otherwise be evident. The experts warn that it is vital for every driver to make a conscious effort to keep one's emotions under control.
Yet the irresponsibility that accounts for much of the problem is not confined to drivers. Street walkers regularly violate traffic regulations; they are at fault in most vehicle walker accidents. And many cyclists even believe that they are not subject to the basic rules of the road.
Significant legal advances have been made towards safer driving in the past few years. Safety standards for vehicle have been raised both at the point of manufacture and through periodic road-worthiness inspections. In addition, speed limits have been lowered. Due to these measures, the accident rate has decreased. But the accident experts still worry because there has been little or no improvement in the way drivers behave. The only real and lasting solution, say the experts, is to convince people that driving is a skilled task requiring constant care and concentration. Those who fail to do all these things pose a threat to those with whom they share the road.
62. The word “massacre” in line 3 paragraph one means _____
A) mass-killing.
B) disaster.
C) tragedy.
D) accident.
63. What is the author's main purpose in writing the passage?
A) To show that the motor vehicle is a very dangerous invention.
B) To promote understanding between careless drivers and street walkers.
C) To discuss traffic problems and propose possible solutions.
D) To warn drivers of the importance of safe driving.
64. According to the passage, traffic accidents may be regarded as a social problem because _____.
A) autos have become most destructive to mankind
B) people usually pay little attention to law and morality
C) civilization brings much harm to people
D) the lack of virtue is becoming more severe
65. Why does the author mention the psychological condition of the driver in Paragraph Three?
A) To give an example of the various reasons for road accidents.
B) To show how important it is for drivers to be emotionally healthy.
C) To show some of the inaccurate estimations by researchers.
D) To illustrate the hidden tensions in the course of driving.
66. Who are NOT mentioned as being responsible for the road accidents?
A) Careless bicycle-riders.
B) Mindless people walking in the street.
C) Irresponsible drivers.
D) Irresponsible manufactures of automobiles.
参考答案：ACBBD
The table before which we sit may be, as the scientist maintains, composed of dancing atoms, but it does not reveal itself to us as anything of the kind, and it is not with dancing atoms but a solid and motionless object that we live. So remote is this “real” table——and most of the other “realities” with which science deals——that it cannot be discussed in terms which have any human value, and though it may receive our purely intellectual credence it cannot be woven into the pattern of life as it is led, in contradistinction to life as we attempt it.
Vibrations in the ether(以太) are so totally unlike the color, purple that the gulf between them cannot be bridged, and they are, to all intents and purposes，not one but two separate things of which the second and less “real” must be the most significant for us. And just as the sensation which has led us to attribute all objective reality to a
non-existent thing which we called “purple”is more important for human life than the conception of vibrations of a certain frequency; so too the belief in God; however ill founded, has been more important in the life of man than the germ theory of true the latter may be.
The motor vehicle has killed and disabled more people in its brief history than any bomb or weapon ever invented. Much of the blood on the street flows essentially from uncivil behavior of drivers who refuse to respect the legal and moral rights of others. So the massacre on the road may be regarded as a social problem.
In fact, the enemies of society on wheels are rather harmless people or ordinary people acting carelessly, you might say. But it is a principle both of law and common morality that carelessness is no excuse when one's actions could bring death or damage to others. A minority of the killers go even beyond carelessness to total negligence.
Researchers have estimated that as many as 80 per cent of all automobile accidents can be attributed to the psychological condition of the driver. Emotional upsets can distort drivers' reactions, slow their judgment, and blind them to dangers that might otherwise be evident. The experts warn that it is vital for every driver to make a conscious effort to keep one's emotions under control.
Yet the irresponsibility that accounts for much of the problem is not confined to drivers. Street walkers regularly violate traffic regulations; they are at fault in most vehicle walker accidents. And many cyclists even believe that they are not subject to the basic rules of the road.
Significant legal advances have been made towards safer driving in the past few years. Safety standards for vehicle have been raised both at the point of manufacture and through periodic road-worthiness inspections. In addition, speed limits have been lowered. Due to these measures, the accident rate has decreased. But the accident experts still worry because there has been little or no improvement in the way drivers behave. The only real and lasting solution, say the experts, is to convince people that driving is a skilled task requiring constant care and concentration. Those who fail to do all these things pose a threat to those with whom they share the road.
62. The word “massacre” in line 3 paragraph one means _____
A) mass-killing.
B) disaster.
C) tragedy.
D) accident.
63. What is the author's main purpose in writing the passage?
A) To show that the motor vehicle is a very dangerous invention.
B) To promote understanding between careless drivers and street walkers.
C) To discuss traffic problems and propose possible solutions.
D) To warn drivers of the importance of safe driving.
64. According to the passage, traffic accidents may be regarded as a social problem because _____.
A) autos have become most destructive to mankind
B) people usually pay little attention to law and morality
C) civilization brings much harm to people
D) the lack of virtue is becoming more severe
65. Why does the author mention the psychological condition of the driver in Paragraph Three?
A) To give an example of the various reasons for road accidents.
B) To show how important it is for drivers to be emotionally healthy.
C) To show some of the inaccurate estimations by researchers.
D) To illustrate the hidden tensions in the course of driving.
66. Who are NOT mentioned as being responsible for the road accidents?
A) Careless bicycle-riders.
B) Mindless people walking in the street.
C) Irresponsible drivers.
D) Irresponsible manufactures of automobiles.
参考答案：ACBBD
The table before which we sit may be, as the scientist maintains, composed of dancing atoms, but it does not reveal itself to us as anything of the kind, and it is not with dancing atoms but a solid and motionless object that we live. So remote is this “real” table——and most of the other “realities” with which science deals——that it cannot be discussed in terms which have any human value, and though it may receive our purely intellectual credence it cannot be woven into the pattern of life as it is led, in contradistinction to life as we attempt it.
Vibrations in the ether(以太) are so totally unlike the color, purple that the gulf between them cannot be bridged, and they are, to all intents and purposes，not one but two separate things of which the second and less “real” must be the most significant for us. And just as the sensation which has led us to attribute all objective reality to a
non-existent thing which we called “purple”is more important for human life than the conception of vibrations of a certain frequency; so too the belief in God; however ill founded, has been more important in the life of man than the germ theory of true the latter may be.
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