Obesity(肥胖) in children and adolescents is rising at an alarming rate. Currently over 15% of young people over 6 years old are obese, and obesity is also increasing among children aged 5 and younger.
Children are considered to be overweight if the BMI(Body Mass Index) is over 85% of the weight group in their age and sex categories. If it is 95% and over, they are considered to be obese. Adolescents are generally judged according to adult criteria(标准) for obesity, although there are other considerations in this population, for many factors will affect the result of these measurements.
Causes and Risk Factors for Obesity in Children
Lifestyle Factors. Without educational or parental guidance, children are extremely greatly exposed to the cultural pressures that are largely responsible for growth of the obesity. Neither the media nor the educational system has strong programs that encourage healthy way of life, including exercise and healthy foods. The following are some specific problems created by the culture:
﹡Too much television watching plays an important role in obesity in children. Not only is it a passive activity, but television also offers countless temptations(诱惑) with its advertisements for fast foods, sugar cereals, and unhealthy snacks. In one study obesity rate were lowest in children who watched television one hour or less a day and highest in those who watched four or more hours.
﹡Sugar, particularly from soda, other sweet drinks, and fruit juice, may be major contributors to childhood obesity. One study reported that drinking soda regularly increases a child’s risk for obesity by 60%.
﹡Less physical exercise and greater sitting activities play another significant role in obesity in children. A high level of physical activity – not just using up energy – is important for weight control in young people.
Family History. Parental obesity more than doubles the risk that a young child, whether thin or overweight, will become obese as an adult. In older children and teenagers, obesity in parents starts to affect less as a predictor(预言) for body weight than their own weight. The risk may be due to environmental or genetic factors, or both.
Ethnic and Socioeconomic Factors. As in adult populations, children from lower socioeconomic groups and minority populations are at higher risk for obesity. For example, among young Mexican Americans and African Americans, there has been an increase in overweight trend of about 13% to over 23%.
69.What’s the main idea of the passage? ______________.
A. The trend of obesity B. Causes of obesity
C. Fight against obesity D. Obesity in children
70.How many main factors leading to obesity in children are mentioned?
A. 2 B. 3 C. 4 D. 5
71.According to the passage, which of the following children is most likely to be obese?
A. A 5-year-old child whose parents are overweight.
B. A 16-year-old teenager whose parents are obese.
C. A child who watches TV one hour per day.
D. A child who take regular exercise.
72.Which of the following is NOT true?
A. Parents should give some guidance on healthy lifestyles.
B. Watching TV four hours a day will surely lead to obesity in children.
C. Children from minority populations are more likely to be obese.
D. Children should take more physical exercises.
高二英语阅读理解简单题
Obesity(肥胖) in children and adolescents is rising at an alarming rate. Currently over 15% of young people over 6 years old are obese, and obesity is also increasing among children aged 5 and younger.
Children are considered to be overweight if the BMI(Body Mass Index) is over 85% of the weight group in their age and sex categories. If it is 95% and over, they are considered to be obese. Adolescents are generally judged according to adult criteria(标准) for obesity, although there are other considerations in this population, for many factors will affect the result of these measurements.
Causes and Risk Factors for Obesity in Children
Lifestyle Factors. Without educational or parental guidance, children are extremely greatly exposed to the cultural pressures that are largely responsible for growth of the obesity. Neither the media nor the educational system has strong programs that encourage healthy way of life, including exercise and healthy foods. The following are some specific problems created by the culture:
﹡Too much television watching plays an important role in obesity in children. Not only is it a passive activity, but television also offers countless temptations(诱惑) with its advertisements for fast foods, sugar cereals, and unhealthy snacks. In one study obesity rate were lowest in children who watched television one hour or less a day and highest in those who watched four or more hours.
﹡Sugar, particularly from soda, other sweet drinks, and fruit juice, may be major contributors to childhood obesity. One study reported that drinking soda regularly increases a child’s risk for obesity by 60%.
﹡Less physical exercise and greater sitting activities play another significant role in obesity in children. A high level of physical activity – not just using up energy – is important for weight control in young people.
Family History. Parental obesity more than doubles the risk that a young child, whether thin or overweight, will become obese as an adult. In older children and teenagers, obesity in parents starts to affect less as a predictor(预言) for body weight than their own weight. The risk may be due to environmental or genetic factors, or both.
Ethnic and Socioeconomic Factors. As in adult populations, children from lower socioeconomic groups and minority populations are at higher risk for obesity. For example, among young Mexican Americans and African Americans, there has been an increase in overweight trend of about 13% to over 23%.
69.What’s the main idea of the passage? ______________.
A. The trend of obesity B. Causes of obesity
C. Fight against obesity D. Obesity in children
70.How many main factors leading to obesity in children are mentioned?
A. 2 B. 3 C. 4 D. 5
71.According to the passage, which of the following children is most likely to be obese?
A. A 5-year-old child whose parents are overweight.
B. A 16-year-old teenager whose parents are obese.
C. A child who watches TV one hour per day.
D. A child who take regular exercise.
72.Which of the following is NOT true?
A. Parents should give some guidance on healthy lifestyles.
B. Watching TV four hours a day will surely lead to obesity in children.
C. Children from minority populations are more likely to be obese.
D. Children should take more physical exercises.
高二英语阅读理解简单题查看答案及解析
Scientists fear rising energy bills may lead to an increase in obesity (肥胖) after discovering a link between poorly-heated homes and higher body -fat.
Researchers from the University of Stirling’s Behavioural Science Centre set out to explore claims that warm indoor temperatures have contributed to rising obesity levels in winter.Instead, the team found that people who live in well-heated homes are more likely to have low body mass index (体重指数) levels while those who keep their heating turned down or off tend to be heavier.
Dr Michael Daly, behavioral scientist and senior lecturer, said: "We set out to investigate the scientific claims that cooler indoor temperatures help us maintain a healthy weight by pushing our bodies to use up more energy. In fact, the research suggests people may eat less and burn more energy when in a warmer indoor environment.
The 13-year study, published in the journal Obesity, involved more than 100,000 adults across England.
Researchers found reduced weight levels among people living in homes heated to above 23°C(73F), which involved about 15,000 of the households studied.
Dr Daly said: "As national gas bills continue to rise faster than the rate of inflation, this research suggests the obesity could worsen where heating is turned down below comfortable levels or off for long periods to cut costs."
This is not just about people who live in well-heated homes being in the financial position to afford more expensive low-calorie foods, exercise classes and sporting activities, and therefore finding it easier to maintain a low BMI level.The study took age, sex, social class and other factors into account.
"The comfortable temperature of 20°C -23°C is where we feel comfortable in our clothes and are neither hot nor cold.At temperatures above this, we use more energy and we eat less because our appetite is affected."
1.The findings of the research can be described as .
A. horrible B. surprising
C. funny D. encouraging
2.According to the passage, with rising gas bills, people may turn down or off their heating to______.
A. stay in shape B. maintain a low BMI level
C. save money D. avoid eating more
3.Which of the following can be the best title for the passage?
A. Obesity links to poorly-heated homes
B. Well-heated home's contribute to obesity
C. Obesity--- A weighty problem in England
D. Rising energy bills help maintain a healthy weight
高二英语阅读理解中等难度题查看答案及解析
A glass a day keeps obesity(肥胖) at bay. Alcohol has always been thought to cause weight gain because of its high sugar content(含量),but new research suggests a glass a day could form part of a diet. Looking at past studies they found that, while heavy drinkers do put on weight, those who drink in moderation can actually lose weight.
A spokesman for the research team at Navarro University in Spain says, “Proper alcohol intake, especially of wine, may be more likely to protect against, rather than promote, weight gain”. The International Scientific Forum on Alcohol Research reviewed the findings and agreed with most of the conclusions, particularly that current data do not clearly indicate if moderate drinking increases weight.
Boston University’s Dr. Harvey Finkel found that the biologic mechanisms(生物学机制) relating alcohol to changes in body weight are not properly understood. His team pointed out the strong protective effects of moderate drinking on the risk of getting conditions like diabetes(糖尿病),which relate to increasing obesity. Some studies suggest that even very obese people may be at lower risk of diabetes if they are moderate drinkers.
The group says alcohol provides calories that are quickly absorbed into the body and are not stored in fat, and that this process could explain the differences in its effects from those of other foods. They agree that future research should be directed towards assessing the roles of different types of alcoholic drinks, taking into consideration drinking patterns and including the past tendency of participants to gain weight.
For now there is little evidence that consuming small to moderate amounts of alcohol on a regular basis increases one’s risk of becoming obese. What’s more, a study three years ago suggested that resveratrol, a compound present in grapes and red wine, destroys fat cells.
1.The passage is mainly for those ______.
A. who produce wine B. who are eager to gain weight
C. who go on a diet D. who have a drinking habit
2.The underlined phrase “in moderation” in the first paragraph means_______.
A. properly B. carefully C. excitedly D. never
3.Why has alcohol been thought to cause weight gain?
A. Because its calories are stored in fat.
B. Because it is rich in sugar.
C. Because it changes drinking patterns.
D. Because it increases the risk of diabetes.
4.What can we learn from the text?
A. The specific roles of different types of alcoholic drinks are very clear.
B. Resveratrol is proved to increase the risk of becoming fat.
C. The research found moderate drinking has a strong protective effect.
D. Current data clearly show that moderate drinking increases weight.
5.What is most likely to be discussed in the paragraph that follows?
A. How to do some easy experiments.
B. How to prove the findings mentioned above.
C. How to make wine in a healthy way.
D. How to reduce the calories contained in wine.
高二英语阅读理解中等难度题查看答案及解析
Ibuprofen
Ibuprofen is used to reduce fever and treat pain in adults and children who are at least 6 months old.
Important information
Ibuprofen can increase your risk of heart attack or stroke, especially if you use it in the long term or take high doses(剂量), or if you have heart disease. Do not use this medicine just before or after heart surgery. Ibuprofen may also cause stomach bleeding, which can give birth to death. These conditions can occur without warning while you are using it, especially in older adults.
Do not take more than your recommended dose. An ibuprofen overdose can damage your stomach. Use only the smallest amount medication needed to get relief from your pain or fever.
A child’s dose of ibuprofen is based on the age and weight of the child. Carefully follow the dosing instructions. Ask a doctor if you have questions.
Take ibuprofen with food or milk to reduce the likelihood of a stomach upset.
Shake the liquid before you measure a dose.
Measure liquid medicine with a special medicine cup.
Store at room temperature away from heat. Do not allow the liquid medicine to freeze.
1.What’s the author’s advice on taking ibuprofen?
A. Avoiding taking it on an empty stomach.
B. Measuring the dose according to your age and weight.
C. Preventing older adults with a fever and an upset stomach using it.
D. Using a small amount of it to speed up recovery after heart surgery.
2.How does the author introduce ibuprofen to readers?
A. By presenting findings of case studies.
B. By explaining its effects together with the risks involved.
C. By giving a list of pros and cons of using it.
D. By comparing it with other medicines of the same kind.
高二英语阅读理解简单题查看答案及解析
Curiosity is at the heart of lifelong learning. It not only gives children an advantage in school, but today’s business leaders agree that it's also at the heart of successful organizations.
Psychologists view curiosity as a life force, vital to happiness, intellectual growth, and well-being. 1. It points students toward the knowledge, skills, relationships, and experiences that they need to live full and productive lives.
1. 2.
Often, the temptation(诱惑)is to benefit students when their curiosity leads to a desired outcome or good grade. But it’s more important to notice and strengthen curiosity when you see it in action. When you praise students by describing how their questions and explorations are contributing to their own or classroom learning, you let them know that they are valued for their motivation, regardless of the grade they achieve.
2. Teach students how to ask quality questions.
Quality questions are vital for curiosity; Google, is great at finding answers but doesn’t motivate the formation of questions. 3. An excellent book for understanding the art of questioning is A More Beautiful Question by Warren Berger.
3. Spread the curiosity around.
4. Curiosity is influential in groups working toward a real-world common goal, helping to inspire questions and new ideas.
4. Explore a variety of cultures and societies.
How is one culture or society uniquely different from another one? Encourage students to explore their genetic or emotional links to other cultures. 5.
A. Value and reward curiosity.
B. Teach students to be critical.
C. Good questions contain “why,” “what if,” and “how”.
D. Why do they relate to certain beliefs or values that other societies hold?
E. The greatest advantage of curiosity lies in its power to motivate learning.
F. Create opportunities for more curious and less curious students to work together in learning.
G. How can students create a new poem, science experiment or product from their explorations?
高二英语七选五困难题查看答案及解析
He left school early, and as an adolescent, determined ______ in South American, set off from his home.
A.having a fortune B.making his fortune
C.to spend a fortune D.to make his fortune
高二英语单项填空中等难度题查看答案及解析
In children’s minds, winter is always _______ skiing, skating and making an snowman.
A. attached to B. blessed with
C. involved in D. associated with
高二英语单项填空中等难度题查看答案及解析
BEIJING — Rising smartphone star Xiaomi is moving upmarket and taking aim at Apple's iPhone. The Chinese maker known for low-priced phones on Thursday unveiled (发布) a new model that Chairman Jun Lei said is comparable to Apple's iPhone 6 but thinner, lighter and much cheaper. The phone starts at 2, 299 yuan ($375), less than half the 5,288 yuan ($ 865) price of an iPhone 6 in China.
Xiaomi, founded in 2010, passed South Korea's Samsung Electronics Co. in the second quarter of last year as the best-selling smartphone brand in China by number of phones sold. The company is expanding into India and other developing markets but has yet to announce plans to enter the United States or Europe.
Xiaomi "is a respected brand that already has an Apple-like following" in China, said analyst Brian Blair, who tracks mobile device makers at Rosenblatt Securities. Apple is still a relatively small player in China, selling about 45 million iPhones there last year, Blair estimates, but will continue to grow.
"Apple is very much a premium (高端的) brand," said Blair. "The company that's more at risk is Samsung, which has been losing share in that market."
Privately held (私人控股的) Xiaomi said last year's sales tripled to 61. 1 million phones and revenue (收益) more than doubled to 74. 3 billion yuan ($12.2 billion). The company, based in Beijing, recently completed a round of fundraising from investors that it said valued Xiaomi at $ 45 billion, making it one of the world's most valuable technology brands.
Xiaomi ran into legal trouble in India in December after a court blocked sales while it hears a complaint by Sweden's LM Ericcson that the Chinese company violated its patents(专利).
In a blog post earlier this month, Lei called the case a "rite of passage" (成年礼) for a young company.
1.Which of the following statements is true?
A. Xiaomi sold more cellphones than Samsung in 2010 in China.
B. Compared to Xiaomi, Apple's iPhone 6 is thinner and lighter.
C. Low-price is Xiaomi's advantage over Apple's iPhones.
D. The company is expanding into the United States or Europe.
2.What can be inferred from the passage according to Brian Blair?
A. More than 45 million iPhones will be sold this year.
B. Xiaomi can beat Apple in the market of China.
C. He thinks Xiaomi is superior to Apple.
D. Samsung will be closed for losing share in the market.
3.How is the 5th paragraph developed?
A. By giving examples.
B. By analyzing cause and effect.
C. By providing data.
D. By making comparisons.
4.What's the attitude of Jun Lei towards the case of Xiaomi in India?
A. Negative. B. Satisfied. C. Positive. D. Doubtful.
高二英语阅读理解困难题查看答案及解析
Academic writing is an important and fixed part of college life at U.S. universities. But writing in a new language can bring special challenges to international students. 1. To be clear, this is something you should never do when studying in the U.S. It is known a “plagiarism” in academia — stealing someone’s work and representing it as your own.
American educational universities support academic honesty, which means that all forms of plagiarism and cheating are forbidden and lead to punishment Failing grades, delayed graduation or expulsion (开除) are the most obvious consequences. Besides, you may lose the ability to think and lose the trust of your teachers and classmates.2.
Never copy other people’s works, never write essays for other students, and never forget to quote (引述) your sources. 3. While doing this, keep the original meaning but share personal thoughts about it, Use your own writing voice and style.
4. It’s a list of published works you have used to support the arguments in your essay. You will need to learn how to format it correctly and how to refer to it from the body of your paper.
Before handing in an academic work to your professor, make sure to check upon and edit it. Check quotations and references one more time, double check for spelling and grammar mistakes, and read your essay aloud. This trick will help you see if your writing flows (通顺) and if there are any mistakes you could change to improve it. 5. They can help look through writings and find repeats before you hand in your work to professors.
A.It may also affect academic results.
B.Here are tips on how to avoid plagiarism.
C.Plagiarism checkers are great tools for students, too.
D.But it’s OK to explain someone’s ideas in your own words.
E.You should know how to format quotations in all types of papers.
F.They may copy academic works or even seek custom writing services.
G.Don’t forget to include a reference page at the end of your academic paper.
高二英语七选五困难题查看答案及解析
For the first time, a generation of children is going through adolescence with smartphones ever-present. Jean Twenge , a professor of psychology at San Diego State University, has a name for these young people born between 1995 and 2012:"iGen". She says, “Members of this generation are physically safer than those who came before them. They drink less they learn to drive later. " "But psychologically," she argues, "they far more easily get hurt. It's not an overstatement to describe iGen as being on the edge of the worst mental health crisis in decades.''
Today's teens are just not spending as much time with their friends face-to-face where they can really read each others' emotions and get that social support. And we know from lots of research that spending time with other people in person is one of the best predictors for psychological well-being and one of the best protections against having mental health issues. They're more likely than young people just 5 or 10 years ago to say that they're anxious, and that they have symptoms of depression.
How much of a factor is parenting? “Parenting is playing a role. Many parents are worried about their teens driving, and going out with their friends and drinking. Yet parents are often not worrying about their teens who stay at home on their phones all the time. But they should be worried about that. I think parents are worried about the wrong thing," Professor Twenge remarked.
She proposes several helpful solutions, "The first is just awareness that spending a lot of time on the phone is not harmless and that if you're spending a lot of time on the phone, then it may take away time from activities that might be more beneficial for psychological well being, like spending time with people in person. And then for parents, I think it is a good idea to defer giving your child a smartphone as long as you can.”
1.What does iGen refer to according to the text?
A.Generation with high intelligence.
B.Generation in information age.
C.Physically strong generation.
D.Psychologically healthy generation.
2.How can today's teens avoid mental health crisis?
A.By making more friends online.
B.By seeing psychologists frequently.
C.By reading others' emotions constantly.
D.By communicating with friends face to face.
3.What should parents concern according to Professor Twenge?
A.Their teens' chatting with classmates.
B.Their teens' poor school performance.
C.Their teens' addiction to smart phones.
D.Their teens' staying out with their friends.
4.Which can best replace the underlined word “defer" in the last paragraph?
A.Put off. B.Approve of.
C.Think of. D.Insist on.
高二英语阅读理解中等难度题查看答案及解析