A new research, presented on Monday, suggests that parents who go down slides with their kids are actually making slides even riskier for their little ones.
Led by Dr. Charles Jennissen, a professor at the University of Iowa, the research found that placing children (especially infants and toddlers蹒跚学步的小孩) on adult laps increases the risk of injury to their lower legs, including broken bones.
"I've seen a lot of these injuries all through my career, and I hadn't seen anybody talk about this problem," says Jennissen.
So Jennissen and his colleagues found that about 350,000 children under the age of six were injured on slides in the U.S. from 2002 to 2015. Injuries were most common among kids from 12-23 months of age, and the most common injury was lower leg fractures (骨折).
The researchers found that 94 percent of 600 cases include lower leg injuries. This is important, because that's not how a kid falling off a slide alone would usually get hurt. The fact that so many kids are getting lower leg injuries—and that those injuries seem to get less common as kids get older—suggests something else is at play.
Jennissen thinks that when children are sliding alone, they aren’t going fast enough or carrying enough body weight to hurt themselves. When they’re sitting on an adult’s lap and their foot gets caught, they have the added momentum of an adult body.
"We think a lot of these lower extremity injuries are because they're on the lap," says Jennissen. "We don't know that for sure, because no parents say that. But from my experience, and the data that suggests it, we think almost all of these are kids are on the lap."
Jennissen isn’t arguing that you should never go down the slide with your kid—he agrees that it’s fun and that he’s done it with his own kids—but he thinks adults should realize the risks.
1.What can we learn about the research from the passage?
A.Many parents are hurt when going down slides with their kids.
B.Dr. Charles Jennissen is the leader of the research team.
C.More and more adult laps are found hurt in the accidents.
D.Many people have discussed the possible reasons for the injuries.
2.The underlined phrase at play in Para.5 probably means _____.
A.taking effect B.paying attention C.making efforts D.solving problems
3.What is Jennissen’s attitude towards parents’ going down slides with kids?
A.He supports it. B.He is against it.
C.He is careful about it. D.He doesn’t care about it.
高二英语阅读理解中等难度题
A new research, presented on Monday, suggests that parents who go down slides with their kids are actually making slides even riskier for their little ones.
Led by Dr. Charles Jennissen, a professor at the University of Iowa, the research found that placing children (especially infants and toddlers蹒跚学步的小孩) on adult laps increases the risk of injury to their lower legs, including broken bones.
"I've seen a lot of these injuries all through my career, and I hadn't seen anybody talk about this problem," says Jennissen.
So Jennissen and his colleagues found that about 350,000 children under the age of six were injured on slides in the U.S. from 2002 to 2015. Injuries were most common among kids from 12-23 months of age, and the most common injury was lower leg fractures (骨折).
The researchers found that 94 percent of 600 cases include lower leg injuries. This is important, because that's not how a kid falling off a slide alone would usually get hurt. The fact that so many kids are getting lower leg injuries—and that those injuries seem to get less common as kids get older—suggests something else is at play.
Jennissen thinks that when children are sliding alone, they aren’t going fast enough or carrying enough body weight to hurt themselves. When they’re sitting on an adult’s lap and their foot gets caught, they have the added momentum of an adult body.
"We think a lot of these lower extremity injuries are because they're on the lap," says Jennissen. "We don't know that for sure, because no parents say that. But from my experience, and the data that suggests it, we think almost all of these are kids are on the lap."
Jennissen isn’t arguing that you should never go down the slide with your kid—he agrees that it’s fun and that he’s done it with his own kids—but he thinks adults should realize the risks.
1.What can we learn about the research from the passage?
A.Many parents are hurt when going down slides with their kids.
B.Dr. Charles Jennissen is the leader of the research team.
C.More and more adult laps are found hurt in the accidents.
D.Many people have discussed the possible reasons for the injuries.
2.The underlined phrase at play in Para.5 probably means _____.
A.taking effect B.paying attention C.making efforts D.solving problems
3.What is Jennissen’s attitude towards parents’ going down slides with kids?
A.He supports it. B.He is against it.
C.He is careful about it. D.He doesn’t care about it.
高二英语阅读理解中等难度题查看答案及解析
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Some researchers, parents and teachers have suggested that high-school classes begin later in the morning to accommodate (适应) teens’ needs for more sleep. 1. However, in the meantime you’ll have to make your own adjustments. Here are some suggestions that may help you to sleep better.
Set a regular bedtime. Going to bed at the same time each night signals to your body that it’s time to sleep. 2. So try to stick as closely as you can to your sleep schedule, even on weekends.
Exercise regularly. 3. Finish exercising at least 3 hours before bedtime. Many sleep experts believe that exercising in late afternoon may actually help a person sleep.
Avoid stimulants (刺激物). Don’t drink beverages with caffeine, such as soda and coffee, after 4 pm. 4. And drinking alcohol in the evening can make a person restless and interrupt sleep.
Relax your mind. Avoid violent, scary or action movies or television shows right before bed. Reading books with active plots may also keep you from falling or staying asleep.
Create the right sleeping environment. 5. So close your curtains (and make sure they’re heavy enough to block out light) and turn down the thermostat (恒温器). Noise can prevent people from sleeping well. Use a white-noise machine if you need to block out a noisy environment.
A. Waking up at the same time every day also helps establish sleep patterns.
B. People usually sleep best in a dark cool room.
C. Light signals to the brain that it’s time to wake up.
D. Try not to exercise right before bedtime as it can make it harder for you to fall asleep.
E. Nicotine is also a stimulant, so quitting smoking may help you sleep better.
F. Naps too close to bedtime may keep you from falling asleep.
G. Some schools have carried out later start times.
高二英语七选五中等难度题查看答案及解析
Children are quick to ask “why” and “how’’ when it comes to new things, but research suggests that they learn more when teachers turn the questions back on them. “When children explain events, they learn more than when just getting the results,’’ said Cristine H. Legare, a professor at the University of Texas.
Ms. Legare brought in 96 children aged 3 to 5 and set before them a complex toy made up of colorful, interlocking gears (齿轮). With the first group, the researchers asked, “Can you explain this to me?” With the second one, they said, “Look, isn’t this interesting?’’
The two groups of children focused on different things, researchers found. Children who were asked to observe noticed the colors of the toy, while those asked to explain focused on the chain of gears working on each other.
Children who had explained the toy were better at re-creating it and not being disturbed by decorative gears, and they were better able to use what they had learned who had observed the toy outperformed the children in the explanation group on a memory task focused on the toy’s colors.
Dedre Gentner, the director of the cognitive science program at Northwestern University, said that teachers introducing a concept can improve students’ understanding by giving examples of close comparisons, and then asking children to explain how concepts are related.
In a series of experiments with 3-to 7-year-olds, she focus children can be con be confused by comparisons that focus on a relationship rather than a direct-object match.
For example, a 3-year-old shown a picture of two rabbits facing each other and told “this is a toma ’’ and then asked to find another “tome” will choose a picture of a rabbit over one of two cats facing each other 98 percent of the time. A 7-year-old is more likely to recognize the more abstract comparison of a relationship.
However, Ms. Gentner found that 3-year-olds can think more like 7-yesr-olds if they are given more examples. When shown a “toma” with rabbits and another with cats, and then asked, “Can you say why both of these are tomas?” most of the children can give a good explanation.
1.What is mainly described in the text?
A. Observation comes first for a learner.
B. Children can learn more first for a learner.
C. pictures can learn more by explaining.
D. Teachers should be patient with children.
2. As for the gear toy, the first group___.
A. learned more about its history
B. focused on the design of the toy
C. had a clear memory of its colors
D. found it hard to create the toy again
3. The author develops the text mainly___.
A. by cause and effect
B. by order in space
C. by examples
D. by time and events
高二英语阅读理解中等难度题查看答案及解析
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式
New research suggests that our DNA 1. (help) us to decide whether we prefer coffee or tea. Researchers from a university in Australia studied how our genes affect our taste and why we like some tastes 2. (good) than others. Following the research, researchers believe they know why some of us prefer coffee while others like tea more. The researchers found that people who like more bitter tastes are more likely to drink coffee, The researchers said they found something strange in 3. (they) research, People who are more 4. (sense) to the bitter taste of caffeine are more likely to prefer coffee to tea.
Researchers looked at data on more than 400, 000 men and women in the United Kingdom. They also looked at an Australian study 5. compared the tastes of 1,757 twins with their siblings (兄弟姐妹). The researchers said genes weren’t the only factors (因素) 6. (affect) people’s tastes. Other things like our changing environment, social factors or 7. effects of taking medicine can also make us prefer coffee or tea, The researchers said we could learn to like coffee, Dr Liang-Dar Hwang said: “Bitter taste perception (直觉) 8. (shape) not only by genetics. but also environmental factors. Even though humans 9. (natural) dislike bitterness, we can learn to enjoy bitter-tasting food after being exposed 10. environmental factors.”
高二英语语法填空中等难度题查看答案及解析
Texting is a great way to communicate and teenagers are doing just that. New research shows that on average, teens are sending 2,000 text messages a month, and doctors say it’s causing injuries.
13-year-old Bailey Baker keeps using her thumbs, sending text messages to her friends again and again. The past March may have been her best month ever, texting 8,000 times. Now, she says she’s feeling the pain. “Just mainly back and neck problems and thumb numbness,” she says.
Baylor-Garland Dr. Jane Sadler is seeing more and more teens who simply text until it hurts. She says parents, including Bailey’s mom, have no idea how much their kids are texting. “I was thinking she was texting about 25 texts a day,” says Lisa Baker. “Wrong! We’ve uncovered a problem.” It didn’t take Dr. Sadler long to find the problem. She gave Bailey the once-over and learnt that Bailey had developed Texting Teen Tendinitis(肌腱炎)
“A lot of them report pain in their thumbs, back and neck,” says Dr. Sadler. “When we look into it and examine a little bit further, we see texting is the main cause of the problem.” Dr. Sadler says back pain is caused by poor posture while texting. Bailey often texts for up to 2 hours a day; that’s a lot of wear and tear on the thumbs which over time, can break down. Dr. Sadler tells over-texting teens to look into the future. “What I tell them is ‘Hey, you might be normal now, but when you are 40 or 50, you can get arthritis (关节炎).’”
Dr. Sadler recommends limiting texting to 50 a day, and keeping good posture. Dr. Sadler also says touch screens are easier on the thumbs than keyboards and hand exercises are great to build up those muscles, making it easier to text.
1. How many text messages did Bailey Baker send a day on average last month?
A. Less than 226. B. About 230. C. About 267. D. More than 300.
2. Because of texting, Bailey Baker suffers from the following problems EXCEPT ______.
A. back pain B. neck pain C. headache D. thumb numbness
3. What does the underlined part in Paragraph 3 mean?
A. She gave Bailey Baker a quick examination.
B. She solved Bailey Baker’s problem at once.
C. She gave Bailey Baker a piece of advice.
D. She let Bailey Baker send a text message again.
4. What can we conclude from Paragraph 4?
A. Teenagers won’t get hurt if they stop texting right now.
B. Poor posture while texting is the main cause of injuries.
C. Thumbs won’t ache if teens text for no more than 2 hours a day.
D. Over-texting may have a bad effect on people in the long run.
高二英语阅读理解简单题查看答案及解析
Texting is a great way to communicate and teenagers are doing just that. New research shows that on average, teens are sending 2,000 text messages a month, and doctors say it’s causing injuries.
13-year-old Bailey Baker keeps using her thumbs, sending text messages to her friends again and again. The past March may have been her best month ever, texting 8,000 times. Now, she says she’s feeling the pain. “Just mainly back and neck problems and thumb numbness,” she says.
Baylor-Garland Dr. Jane Sadler is seeing more and more teens who simply text until it hurts. She says parents, including Bailey’s mom, have no idea how much their kids are texting. “I was thinking she was texting about 25 texts a day,” says Lisa Baker. “Wrong! We’ve uncovered a problem.” It didn’t take Dr. Sadler long to find the problem. She gave Bailey the once-over and learnt that Bailey had developed Texting Teen Tendinitis(肌腱炎)
“A lot of them report pain in their thumbs, back and neck,” says Dr. Sadler. “When we look into it and examine a little bit further, we see texting is the main cause of the problem.” Dr. Sadler says back pain is caused by poor posture while texting. Bailey often texts for up to 2 hours a day; that’s a lot of wear and tear on the thumbs which over time, can break down. Dr. Sadler tells over-texting teens to look into the future. “What I tell them is ‘Hey, you might be normal now, but when you are 40 or 50, you can get arthritis (关节炎).’”
Dr. Sadler recommends limiting texting to 50 a day, and keeping good posture. Dr. Sadler also says touch screens are easier on the thumbs than keyboards and hand exercises are great to build up those muscles, making it easier to text.
68．Because of texting, Bailey Baker suffers from the following problems EXCEPT ______.
A．back pain B．neck pain C. headache D．thumb numbness
69．What does the underlined part in Paragraph 3 mean?
A．She gave Bailey Baker a quick examination.
B．She solved Bailey Baker’s problem at once.
C. She gave Bailey Baker a piece of advice.
D．She let Bailey Baker send a text message again.
70．What can we conclude from Paragraph 4?
A．Teenagers won’t get hurt if they stop texting right now.
B．Poor posture while texting is the main cause of injuries.
C. Thumbs won’t ache if teens text for no more than 2 hours a day.
D．Over-texting may have a bad effect on people in the near future.
高二英语阅读理解简单题查看答案及解析
Your friends' lives may look more exciting than yours on Facebook，but new research shows that is because they are faking(伪造)it.
A recent survey has found around twothirds of people on social media post images(图像) to their personal information to make their lives seem more adventurous.And more than three quarters of those asked said they judged their peers(同龄人)based on what they saw on their Instagram，Snapchat or Facebook pages.
The British survey，by smartphone maker HTC，found that，in order to make our own pages and lives appear more exciting，six percent also said they had borrowed items to include in the images in order to pass them off as their own. More than half of those surveyed said they posted images of items and places purely to show off，causing_jealousy among friends and family.
Behavioural psychologist Hemmings said the trend was unsurprising due to the rise of social media.“We're living in a world of instant communication.”she said.“Fashion and style used to live and die in magazines；now people are in search of authentic （真实的），peertopeer recommendations as well，making social media an equal power house to magazines and newspapers.”
“With images being shared in an instant we desire to know what our friends are wearing，or what super stars are buying, as soon as they have got them.” Such is the influence of social media sites like Instagram,76 percent of those asked also said seeing items on social media influences them to buy them，with men more likely to take style advice and buy what they see.
1.How do some people make their lives appear more exciting?
A. By buying pictures.
B. By posting images.
C. By making up stories.
D. By risking their lives.
2.What does the word “jealousy” in Paragraph 3 mean?
A．Envy. B．Conflict. C．Adventure. D．Misunderstanding.
3.What can we learn from Jo Hemmings?
A．The trend reflects the development of social media.
B．Fashion and style no longer exist in magazines.
C．Magazines and newspapers are less important.
D．The trend is beyond people's expectation.
4.Which of the following best describes social media like Instagram?
A．Persuasive. B．Creative. C．Positive. D．Honest.
高二英语阅读理解中等难度题查看答案及解析
Decision-making under Stress
A new review based on a research shows that acute stress affects the way the brain considers the advantages and disadvantages, causing it to focus on pleasure and ignore the possible negative (负面的) consequences of a decision.
The research suggests that stress may change the way people make choices in predictable ways.
“Stress affects how people learn,” says Professor Mara Mather. “People learn better about positive than negative outcomes under stress.”
For example, two recent studies looked at how people learned to connect images(影像) with either rewards or punishments. In one experiment, some of the participants were first stressed by having to give a speech and do difficult math problems in front of an audience; in the other, some were stressed by having to keep their hands in ice water. In both cases, the stressed participants remembered the rewarded material more accurately and the punished material less accurately than those who hadn’t gone through the stress.
This phenomenon is likely not surprising to anyone who has tried to resist eating cookies or smoking a cigarette while under stress –at those moments, only the pleasure associated with such activities comes to mind. But the findings further suggest that stress may bring about a double effect. Not only are rewarding experiences remembered better, but negative consequences are also easily recalled.
The research also found that stress appears to affect decision-making differently in men and women. While both men and women tend to focus on rewards and less on consequences under stress, their responses to risk turn out to be different.
Men who had been stressed by the cold-water task tended to take more risks in the experiment while women responded in the opposite way. In stressful situations in which risk-taking can pay off big, men may tend to do better, when caution weighs more, however, women will win.
This tendency to slow down and become more cautious when decisions are risky might also help explain why women are less likely to become addicted than men: they may more often avoid making the risky choices that eventually harden into addiction.
1. We can learn from the passage that people under pressure tend to ______.
A. keep rewards better in their memory
B. recall consequences more effortlessly
C. make risky decisions more frequently
D. learn a subject more effectively
2. According to the research, stress affects people most probably in their ______.
A. preference for pleasure B. ways of making choices
C. tolerance of punishments D. responses to suggestions
3. The research has proved that in a stressful situation, ______.
A. women find it easier to fall into certain habits
B. men have a greater tendency to slow down
C. women focus more on outcomes
D. men are more likely to take risks
高二英语阅读理解中等难度题查看答案及解析
Should parents ever hit their children?
Research suggests many of us are likely to respond “no”, and public support for spanking（打屁股） has been falling over the years．But surveys also show that 75 percent to nearly 90 percent of parents admit to spanking their child at least once．
I was raised in a zero-tolerance home for disrespect, and my parents often turned to physical punishment．And, no, I don' t feel I was damaged by it．
Nothing is more annoying than watching ill-mannered behavior from children．
But there is data to suggest that a return to old-school spanking isn't the answer．
Two years ago, Newsweek reported that it had found data suggesting that teens whose parents used physical punishment were more likely to become aggressive．
Murray Straus, professor at the University of New Hampshire in America, has studied the topic of children and spanking for decades．He said that children who were physically punished have lower IQs than their peers．It may be that children with lower IQs were more likely to get spanked, but the punishment may have been counterproductive （反作用的） to their mental development, as well．
Some researchers make the argument that occasional open-handed smacks （用巴掌打） on the bottom are not only harmless but can have some benefit．
Last year, Marjorie Gunnoe, a psychologist at Calvin College, studied teens who have never spanked．There are a greater number of children growing up without ever having been physically punished．Gunnoe’s research suggests they don' t turn out any better than those who were sometimes spanked．
There are some parents who simply cannot control their tempers （脾气）．But I still believe that the best parents are the ones who are able to offer fair and firm discipline without ever turning to physical punishment．
1.According to the first three paragraphs, the author was probably hit by her parents when____________.
A．they were dissatisfied with her grade
B．she showed no respect for the elder
C．they cannot control their temper
D．their discipline turns out to be not strict enough
2.According to Murray Straus, children who are physically punished ______．
A．are less aggressive toward others when they get older
B．have slower physical development
C．benefit from occasional spanking
D．may develop lower IQs than their peer
3.Which of the following statements is TRUE according to the article?
A．40 percent of children grow up without ever being spanked
B．Children who suffer less physical punishment are better students
C．Occasional open-handed spanking on the bottom are mentally harmful
D．Researchers disagree over whether smacking is mentally harmful to children
高二英语阅读理解中等难度题查看答案及解析
阅读理【解析】
共20题 每题2分 共40分
Should parents ever hit their children?
Research suggests many of us are likely to respond “no”, and public support for spanking(打屁股) has been falling over the years．But surveys also show that 75 percent to nearly 90 percent of parents admit spanking their child at least once．
I was raised in a zero-tolerance home for disrespect, and my parents often turned to physical punishment．And, no, I don't feel I was damaged by it．
Nothing is more annoying than watching ill-mannered behavior from children．
But there is data to suggest that a return to old-school spanking isn't the answer．
Two years ago, Newsweek reported that it had found data suggesting that teens whose parents used physical punishment were more likely to become aggressive．
Murray Straus, professor at the University of New Hampshire in America, has studied the topic of children and spanking for decades．He said that children who were physically punished have lower IQs than their peers．It may be that children with lower IQs were more likely to get spanked, but the punishment may have been counterproductive (反作用的) to their mental development, as well．
Some researchers make the argument that occasional open-handed smacks (用巴掌打) on the bottom are not only harmless but can have some benefit．
Last year, Marjorie Gunnoe, a psychologist at Calvin College, studied teens who have never spanked．There are a greater number of children growing up without ever having been physically punished．Gunnoe’s research suggests they don' t turn out any better than those who were sometimes spanked．
There are some parents who simply cannot control their tempers(脾气)．But I still believe that the best parents are the ones who are able to offer fair and firm discipline without ever turning to physical punishment．
1.According to the first three paragraphs, the author was probably hit by her parents when_______.
A.they were dissatisfied with her grade
B.she showed no respect for the elder
C.they cannot control their temper
D.their discipline turns out to be not strict enough
2.According to Murray Straus, children who are physically punished _____.
A.are less aggressive toward others when they get older
B.have slower physical development
C.benefit from occasional spanking
D.may develop lower IQs than their peer
3.Which of the following statements is TRUE according to the article?
A.40 percent of children grow up without ever being spanked
B.Children who suffer less physical punishment are better students
C.Occasional open-handed spanking on the bottom are mentally harmful
D.Researchers disagree over whether smacking is mentally harmful to children
高二英语阅读理解中等难度题查看答案及解析