A new study has found no evidence that sunscr...

A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.

Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma(黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.

Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence(发生率)faster than any other cancer in the United States.

But questions have been raised about sunscreen and whether it may have the opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.

The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer—people with fair skin and freckles(雀斑), for example—are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.

The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.

1.The underlined word “flaws” in the 2nd paragraph most probably means 　　　　 .

A. evidences        B. facts        C. faults        　　 D. failures

2.People with fair skin and freckles 　　　　　 .

A. seldom use sunscreen            　　　　

B. are more in danger of skin cancer

C. can be free from the harm of the sun    　

D. often expose themselves to the sun

3.We can learn from the passage that 　　　　　 .

A. sunscreen users get skin cancer more often

B. the volunteers have proved the effect of sunscreen

C. the new study was based on the experiences of volunteers

D. the number of skin cancer patients is increasing in America

4.Which of the following can be the best title for this passage?

A. Sunscreen to Prevent Skin Cancer    　　

B. Sunscreen to Increase Skin Cancer

C. Skin Cancer Caused by Sunscreen    　　

D. Skin Cancer Caused by Freckles

高三英语阅读理解中等难度题查看答案及解析

A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin caner, actually increases the risk.

Researchers from the University of lows based their firdings on a review of 18 earlier studies that looked at the associstion between sunscreen use and melanoms(黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.

Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helpsprevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.

But questions have been raised about sunscreen and whether it may have the opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.

The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin concer—people with fair skin and freckles （雀斑）,for example—are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.

The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.

1.The underlined word “flaws” in the 2^nd paragraph most probably means ________.

A.evidences     B.facts     C.faults        D.failures

2.People with fair skin and freckles ________.

A.seldom use sunscreen                  B. are more in danger of skin concer

C. can be free from the harm of the sun     D. often expose themselves to the sun

3.We can learn from the passage that ________.

A. sunscreen users get skin cancer more often

B. the volunteers have proved the effect of sunscreen

C. the new study was based on the experiences of volunteers

D. the number of skin cancer patients is increasing in America

4.Which of the following can be the beat title for this passage?

A. Sunscreen to Prevent Skin Cancer         B. Sunscreen to Increase Skin Cancer

C. Skin Cancer Caused by Sunscreen          D. Skin Cancer Caused by Freckles

高三英语阅读理解中等难度题查看答案及解析

A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.

Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma (黑素瘤)．They said that they found faults in studies that had reported associations between sunscreen use and higher risk of melanoma.

Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.

But questions has been raised about sunscreen and whether it may has opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.

The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer--- people with fair skin and freckles (雀斑), for example--- are more likely to use sunscreen．As a result, it may appear that sunscreen users get cancer more often.

The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.

1.People with fair skin and freckles________.

2.We can learn from the passage that________.

3.Which of the following can be the best title for this passage?

高三英语阅读理解中等难度题查看答案及解析

［1］A new study has found evidence of aggressive behavior in children who drink four or　 more servings of soft drinks every day．

［2］The mothers of 3,000 five-year-olds took part in the study．They were asked to keep a record of how many servings of soft drinks their children drank over a two-month period and keep records of how they behaved．The researchers found that 43 percent of the boys and girls drank at least one daily serving of soda．Four percent of the youngsters had four or more sodas to drink every day．

［3］Children who drank the most soda were more than two times likely to show signs of aggression．“For the children who consumed four or more soft drinks per day，we see an association between aggressive behaviors，attention problems and withdrawn behaviors．”Shakira Suglia says．The aggressive behaviors included destroying possessions belonging to others，taking part in fights and physically attacking people．

［4］Shakira says the researchers identified the link after they considered the factors like the child’s age and sex．They also considered ____________，such as whether the boys and girls were eating sweets or given fruit drinks on a normal day．In addition，the researchers examined parenting styles and other social conditions that might be taking place in the home．

［5］It is not quite clear why young children who drink a lot of soda have behavior problems．However,a substance often found in soft drinks is caffeine，which helps to make people feel energetic．Doctor Suglia suggests that caffeine could be causing the children to be more aggressive．

［6］The research is part of a larger study called the Fragile Families and Child Well-being Study．It follows 5．000 poor mothers and their children in 20 American cities．

1．What is the main idea of the text？(no more than l2 words)

2．What does the underlined word“they”in Paragraph 2 probably refer to?(no more than 5 words)

3．List three aggressive behaviors according to the text．(no more than 12 words)

4．Fill in the blank in Paragraph 4 with proper words．(no more than 3 words)

5．Complete the following statement with one word from Paragraph 5．

People will often become _____________ when they have some coffee，in which caffeine is the major chemical．

高三英语信息匹配中等难度题查看答案及解析

A new study has found evidence of aggressive (攻击性的) behavior in children who drink four or more servings of soft drinks every day. Information for the study came from the mothers of 3,000 5-year-olds. Researchers asked the women to keep a record of how many servings of soft drinks their children drank over a two-month period. They were also asked to complete a checklist of their children’s behavior.

The researchers have found that 43 percent of the children drink at least one daily serving of soda, and 4 percent of the youngsters have even four or more sodas to drink every day.

Shakira Suglia, a famous expert, says they’ve found that children who drink the most soda are more than twice as likely as those who drink no soda to show signs of aggression.

“For the children who consume four or more soft drinks per day, we see more withdrawn behaviors, which make them hard to get along well with others.”

The aggressive behaviors include destroying possessions belonging to others, taking part in fights and physically attacking people.

The researchers have determined the link after considering factors like the child’s age and sex. They have also considered other possible influence, such as whether the boys and girls are eating sweets or giving fruit drinks on a normal day. In addition, the researchers have examined parenting styles and other social conditions that may be taking place in the home.

Researches are trying to find why young children who drink a lot of soda have behavior problems. An ingredient often found in soft drinks is caffeine, which helps to make people feel energetic. Doctor Suglia suggests that caffeine could cause the 5-year-olds to be more aggressive. Earlier studies of adults have found the highest sugar levels in those who carry weapons (武器) and show signs of negative social behavior.

1.What section of a newspaper is the passage probably taken from?

A. Scientific Technology    B. Science Fictions　　

C. Social News    D. Health Report

2.The underlined word “withdrawn” in paragraph 4 can probably be replaced by the word ______.

A. backward            B. unsocial            C. generous        D. friendly

3.Researchers studied the following aspects of the children except ______.

A. age                    B. sex                C. games            D. parents

4.According to the research, which of the following is right?

A. Mothers were asked to keep a record of how many servings of soft drinks their children drank over a three-month period.

B. 4 percent of the youngsters have even four or fewer sodas to drink every day.

C. Children who drink no soda show fewer aggressive behaviors.

D. Children with the highest sugar levels tend to carry weapons and show signs of negative social behavior.

5.After a further study on ingredients in soda, Shakira Suglia implies that the direct cause of the aggressive behaviors may be ______.

A. soft drinks        　 B. attention problems    　　　　

C. caffeine         D. social conditions

高三英语阅读理解中等难度题查看答案及解析

阅读下面短文并回答问题，然后将答案写到答案纸相应的位置上(请注意题后的词数要求)。

[1]A new study has found evidence of aggressive behaVior in children who drink four or more servings of soft drinks every day．

[2]The mothers of 3，000 five-year-olds took part in the study．They were asked to keep a record of how many servings of soft drinks their children drank over a two-month period and keep records of how they behaved．The researchers found that 43 percent of the boys and girls drank at least one daily serving of soda．Four percent of the youngsters had four or more sodas to drink every day．

[3]Children who drank the most soda were more than two times likely to show signs of aggression．“For the children who consumed four or more  soft drinks per day，we see an association between aggressive behaviors, attention problems and withdrawn behaviors．”Shakira Suglia says．The aggressive behaviors included destroying possessions belonging to others，taking part in fights and physically attacking people.

[4]Shakira says the researchers identified the link after they considered the factors like the child’s age and sex．They also considered________，such as whether the boys and girls were eating sweets or given fruit drinks on a normal day．In addition，the researchers examined parenting styles and other social conditions that might be taking place in the home.

[5]It is not quite clear why young children who drink a lot of soda have behavior pmblems．However，a substance oftell found in soft drinks is caffeine，which helps to make people feel energetic．Doctor Suglia suggests that caffeine could be causing the children to be more aggressive.

[6]The research is part of a larger study called the Fragile Families and Child Welibeing Study．It follows 5，000 poor mothers and their children in 20 American cities.

1.What is the main idea of the text?(no more than 10 words)

2.What does the underlined word“they’’in Paragraph 2 probably refer to?

3.List three aggressive behaviors according to the text．(no more than 10 words)

①

②

③

4.Fill in the blank in Paragraph 4 with proper words．(no more than 3 words)

5.Complete the following statement with one word from Paragraph 5．

People will often become________ when they have some coffee，in which caffeine is the major chemical．

高三英语其他题困难题查看答案及解析

阅读下面短文并用英语回答问题，将答案写到答题卡相应的位置上(请注意各小题后面的词数要求)

A new study has found evidence of aggressive behavior in children who drink four or　 more servings of soft drinks every day．

The mothers of 3,000 five-year-olds took part in the study．They were asked to keep a record of how many servings of soft drinks their children drank over a two-month period and keep records of how they behaved．The researchers found that 43 percent of the boys and girls drank at least one daily serving of soda．Four percent of the youngsters had four or more sodas to drink every day．

Children who drank the most soda were more than two times likely to show signs of aggression．“For the children who consumed four or more soft drinks per day，we see an association between aggressive behaviors，attention problems and withdrawn behaviors．”Shakira Suglia says．The aggressive behaviors included destroying possessions belonging to others，taking part in fights and physically attacking people．

Shakira says the researchers identified the link after they considered the factors like the child’s age and sex．They also considered ____________，such as whether the boys and girls were eating sweets or given fruit drinks on a normal day．In addition，the researchers examined parenting styles and other social conditions that might be taking place in the home．

It is not quite clear why young children who drink a lot of soda have behavior problems．However,a substance often found in soft drinks is caffeine，which helps to make people feel energetic．Doctor Suglia suggests that caffeine could be causing the children to be more aggressive．

The research is part of a larger study called the Fragile Families and Child Well-being Study．It follows 5．000 poor mothers and their children in 20 American cities．

1.What is the main idea of the text?(no more than l 2 words)

2.What does the underlined word“they”in Paragraph 2 probably refer to?(no more than 5 words)

3.List three aggressive behaviors according to the text．(no more than 12 words)

4.Fill in the blank in Paragraph 4 with proper words．(no more than 3 words)

5.Complete the following statement with one word from Paragraph 5．

高三英语其他题简单题查看答案及解析

It is common for older people to forget things. Now an American study has found that memory starts to fail when we are young adults. People younger than thirty years of age usually do not know that they are starting to forget information. But scientists from the University of Michigan say the loss of memory has usually already started.

Researchers say people do not observe this slow reduction in mental ability until the loss affects their everyday activities.

Denise Park led the new study. She directs the Centre for Aging and Cognition at the Institute for Social Research at the University of Michigan. Her team studied more than 350 men and women between the ages of twenty and ninety years. The study identified people in their middle twenties with memory problems.

She says young adults do not know they are forgetting things because their brains have more information than they need.

But she says that people in their twenties and thirties are losing memory at the same rate as people in their sixties and seventies.

Ms. Park says people between the ages of sixty and seventy may note the decrease in their mental abilities. They begin to observe that they are having more trouble remembering and learning new information.

The study found that older adults are more likely to remember false information as being true. For example, they remembered false medical claims as being true. Younger people remembered hearing the information. But they were more likely to remember that it was false.

Ms. Park is now using modern imaging equipment to study what happens in the brains of people of different ages. She is studying what parts of the brain older adults use for different activities compared to younger adults. Ms. Park says mental performance is a direct result of brain activity and brain structure. She says keeping the brain active is important. She hopes future studies will identify ways to improve the operation of our aging minds.

1.The passage is meant to _____________.

2. According to the passage, young adults differ from older adults in that ________.

3. Which of the following statements is NOT TRUE?

4.It can be inferred from what Denis Park says that ______.

5.Which of the following is a suitable title for the passage?

高三英语阅读理解中等难度题查看答案及解析

A new study has found that social media could be affecting the sleep of young adults.

The study is a project of researchers at the University of Pittsburgh's School of Medicine. They found that young people who often use social media are more likely to suffer from sleep disorders than those who use social media less. The researchers say doctors should ask young adults about their use of social media when treating sleep issues.

“This is one of the first pieces of evidence that social media use really can influence your sleep.” said Jessica C Levenson. She was the lead author of a report on the study.

The researchers set out to examine the connection between social media use and sleep among young adults. Levenson noted that these young adults are possibly the first “generation to grow up with social media.”

The researchers wanted to find out how often young people used social media sites like Facebook, Twitter, Credit and Tumbler. For the study, they gave questionnaires to nearly 1,800 adults, aged 19 to 32. On average, members of the study group used social media sites one hour a day. They also "visited various social media 30 times per week.”

Thirty percent of the study's participants reported having serious problems with sleeping. Those people who used social media a lot were three times more likely to have a sleep disorder. And those who spent the most time on social media were two times as likely to suffer from sleep disturbances.

Levenson said the number of times a person visits social media is a better predictor of sleep problems than overall time spent on social media. If this is true, she adds, then practices that stop such behaviors may be the most effective.

1.What's the main idea of the text?

A. The researchers focus on social media.

B. The researchers manage to handle sleep problems.

C. Doctors treat young patients.

D. Social media affects sleep.

2.When treating sleep problems, doctors are advised to ________.

A. offer some advice about giving up social media

B. ask the patients about young adults’ use of social media

C. give young adults some medicine

D. ask about the patients' living conditions

3.How did the researchers mainly carry out the study?

A. By doing online research.　　 B. By giving an example.

C. By collecting published data.　　 D. By doing questionnaires.

4.What can be inferred from the text?

A. Men are more likely to suffer from a sleep disorder than women.

B. People often using social media are less likely to have a sleep disorder.

C. Using computers less helps avoid sleep problems completely.

D. Sleep problems can be determined by the times of a person visiting social media.

高三英语阅读理解中等难度题查看答案及解析

A new study, conducted by British company Mindlab International, has found that listening to music at work increases accuracy and speed, The Telegraph reported. Perhaps, some parents disagree with this idea, saying, "Switch off the music and concentrate!" Well, if that's the case with your parents, you might now be able to convince them that you have science on your side.

The company gave 26 participants a series of different tasks for five days in a row, including spell checking, mathematical word problems, data entry, and abstract reasoning. The participants completed these tasks while listening to music or no music at all.

The results showed that while music was playing, 88% of participants produced their most accurate test results and 81% completed their fastest work. David Lewis, chairman of Mindlab International, told The Telegraph, "Music is a very powerful management tool if you want to increase not only the efficiency of your workforce but also their emotional state... they are going to become more positive about the work."

However, you may have a list of your favorite songs, but not all kinds of music match all homework. For maths or other subjects involving numbers or attention to detail, you should listen to classical music, the study found. In the study, pop music enabled participants to complete their tasks 58% faster than when listening to no music at all. If you are reviewing your English writing, pop music is the best choice, as it is the best kind for spell checking. It cut mistakes by 14%, compared to listening to no music. After finishing your homework, do you often take time to check your answers? Maybe, some dance music is suitable for you.

1.Which of the following can be the best title for the passage?

A. Music helps us to learn

B. We cannot live without music

C. Different music, different lives

D. Music in the classroom.

2.What did the participants have to do in the study？

A. Persuade their parents to listen to music.

B. Listen to the same music together.

C. Try their best to choose the most suitable music.

D. Finish tasks with music or without music at all.

3.What does the underlined word "they" refer to in Para 3？

A. tools　　 B. results

C. tests　　 D. participants

4.When you review your English writing, what kind of music is the best choice？

A. Classical music　　 B. Dance music

C. Pop music　　 D. Rock music

高三英语阅读理解中等难度题查看答案及解析