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Eat more, Play more—Weight Less

In the United States, 20 to 40 percent of the adult population have a “weight problem”. To many people, the cause seems obvious: we eat too much. But scientific evidence does little to support this idea.

Several modern studies have shown that fatter people do not eat more on average than thinner people and that slim people are more active than fat people.

I believe that this shows overweight people can become relatively slim gradually via a progressive program of regular exercise. The key is regular, enjoyable activity.

Use of energy(calories) by the body falls into two categories. The first is energy used for essential bodily functions—digestion, heart beat, breathing—and BMR(新陈代谢). In an average-sized adult, BMR requires about 1400 calories per day.

The second category is energy used for physical activity—standing, walking and all other movements. Together with the BMR, it makes up total calorie use, which should be balanced by food intake for weight to remain stable.

For years now, we have known that dieting—especially severe dieting(400 calories per day, for instance)—decreases BMR. This is the body's defense system to keep energy when food supply is reduced. Unfortunately, it tends to weaken the diet's effects by enabling the body to “get by” on fewer calories. For this reason, I believe that severe dieting is not a good way to lose weight, and all dieting should be seen as a temporary measure.

In addition to helping weight loss and continued weight control, regular exercise has many other features to recommend it. While weight loss by dieting alone results in some loss of muscle as well as fat, weight loss by exercise and moderate dieting leads to an increased proportion（均衡）of muscle mass. The regular exerciser has good heart function too.

Regular exercise helps to raise blood levels of high－density lipoprotein(HDL) and increased exercise leads to increased food intake and thus to increased intake of critical nutrients (营养).

The benefits of eating more because of an increase in physical activity are not widely appreciated. Many people in this country, by actual measurement, have remarkably low calorie intake. Often the amount is so low (1 200 to 1 800 calories a day) that nutritionists worry about the adequacy(足够的)of their vitamin and mineral intake. And too little food, with inadequate fiber content, leads in the old population to chronic constipation(长期便秘)．

To sum up, most Americans still get too little regular exercise, and it is within this group that almost all obesity is found. Severe dieting should not be used as it is unpleasant and tends to be self-defeating. Moderate dieting combined with regular exercise is much more effective and enjoyable. The choice is yours: life on the sofa, nibbling celery or the active, healthy-eating, healthful way.

Title                             Eat more, Play more—Weight Less

Causes of weight problems        ●It's commonly believed that adults' weight problems are due to 1.______ too much, but little scientific evidence 2.______ this idea.

●Studies show that fat people eat less and are 3.______ active than slim people.

4.______of eating enough        ●Energy used for essential bodily functions, BMR, and 5.______ activity should be balanced by food intake for weight to remain stable

●Food intake offers 6.______ vitamin and mineral intake and prevents the old from chronic constipation.

Ways of weight loss  ●Dieting alone—a temporary measure

●Tending to weaken the diet's effects

●7.______in some loss of muscle as well as fat

●Exercising 8.______ — a recommended way

●Having good heart function

●Helping to raise blood levels of HDL

●Attaining critical nutrients

9.______ ●Doing little exercise has much to do with obesity.

●Severe dieting should be 10.______.

●Moderate dieting as well as regular exercise is much more effective and enjoyable.

高二英语填空题困难题查看答案及解析

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Celebrating Sleep

World Sleep Day, observed on 21 March, was created to bring attention to the growing number of sleep problems worldwide. Sleep is a natural part of human life, but many people in the modern world ignore its importance. As a result, sleep problems are increasingly common.In 2002, scientists at the University of Athens in Greece conducted a survey of over 35,000 people in 10 countries around the world, including China, Belgium and South Africa. Of the people that responded to the survey, 24 percent said that they did not sleep well, and based on their responses, 31.6 percent were diagnosed with insomnia(失眠) and another 17.5 percent were diagnosed with borderline(边界线) insomnia. In addition, 30.7 percent of survey respondents reported visiting a doctor for help with sleep problems and 11.6 percent said that they felt very sleepy during the day.

Overall, the survey found that many people suffer the effects of poor quality sleep, some examples of which are being unable to fall asleep and waking up in the middle of the night. The main factors causing these problems are pressure from school or work and a fast pace of life, but noise pollution and light pollution also interfere with sleep and contribute to poor quality sleep. The survey’s findings are particularly troubling because large numbers of people were found to have difficulty sleeping at night. The short-term effects of this are tiredness and trouble concentrating. If this happens for a long time, the risk of gaining weight and having a heart attack may increase.

There are many things you can do to improve the quality of your sleep. First, you should have regular sleep habits. Try to go to bed and wake up around the same time each day. You also need to make your bedroom a cool, dark, quiet place to sleep so that heat, light and noise do not disturb you. At night, you should also avoid things that contain caffeine, such as chocolate, coffee, tea and many soft drinks, as caffeine may keep you from sleeping.

Getting a good night’s sleep is important for everyone. By following the advice above, you can rest better at night and work better during the day.

高二英语任务型阅读中等难度题查看答案及解析

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Some people believe that greed and selfishness has become the basis of modern society. We should return to the old traditions of family and community, and then we will have a better life. To what extent do you agree or disagree with the above opinion?

In this fast-paced world, many values are undergoing major changes. While people traditionally prioritize(区分优先次序) caring, sharing and generosity in life and work, modern people seem to be more self-absorbed and self-concerned.

Modern people act selfishly to survive the harsh competition of life. They say that it is a jungle out there. To survive, you have to fight with whatever means that come handy. Obviously greedy and selfishness go perfectly well with such ideas. In a company, employees do everything they can to get better pay and higher position, even at the cost of colleagues. We are in any way advocating any selfish conduct. It is just that people are pressured to act in a certain way due to outside influences.

In spite of common practice, it is hard to conclude that modern society is built on greed and selfishness, both of which are not newly invented vocabulary. In ancient times people also did greedy and selfish things though such behaviors were more condemned(谴责) then. But we cannot ignore the fact that people in the past lived a relatively more isolated life and faced less pressure compared with their modern twins.

Are we happier to share with others and be generous to them? There is no fixed answer either. Some people take great pleasure helping and giving to others while others feel happy doing the opposite. But I personally think that people should not be too selfish. Caring for others can actually encourage the development of a mutually beneficial relationship.

In conclusion, modern people appear to be more self-centered than those in the past due to strong outside pressure. However, we should encourage people to know the importance of being caring and generous and to build a mutually beneficial relationship with others.

Title: Are Modern People Becoming More Selfish?

高二英语填空题中等难度题查看答案及解析

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The Chinese are very generous when it comes to educating their children. Some parents send their children to the best schools or even abroad to England, the US or Australia, regardless of how much this costs.　 Many also want their children to take extra-curriculum (课外的) activities where they either learn a musical instrument or ballet,　 or other classes that will give them a head start in life. The Chinese believe that the more expensive an education is, the better it is, so parents often spend unreasonable amount of money on education. Even poor couples buy a computer for their son or daughter.

However, what most parents fail to see is that the best education they can give their children is usually very cheap. Parents can see that their children's skills vary; they will usually be skilled in some areas while poor in others. What most parents fail to realize though, is that today's children lack self-respect and self-confidence.

The problem is that parents are only educating their children on how to take multiple-choice tests and how to study effectively. They are not teaching them the most important skills they need to be confident, happy and clever.

Parents can help achieve this by teaching their children practical skills like cooking, sewing and other housework.

Teaching a child to cook will improve many of the skills that he will need later in life. Cooking demands patience and time. It is an enjoyable but difficult experience. A good cook always tries to improve his cooking, so he will learn to work hard and gradually finish his job successfully. The result, a well-cooked dinner, will give a child a lot of satisfaction and confidence.

An old machine such as a broken radio or TV set that you give your child as a toy may make him curious and arouse his interest. If he will spend hours looking at it, and try to mend it, your child might become an engineer when he grows up. Such activities do more than teach a child to read a book; but rather they teach them to think, and to use their minds. This is much more important than learning by reading a book.

高二英语填空题中等难度题查看答案及解析

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The word science is heard so often in modern times that almost everybody has an idea of its meaning. However, its definition is difficult for many people. The meaning of the term is confusing, but everyone should understand its meaning and objectives (目标). Just to make the explanation as simple as possible, suppose science is defined as classified knowledge or facts.

Even in the true science, distinguishing fact from fiction is not always easy. For this reason great care should be taken to distinguish between beliefs and truths. There is no danger as long as a clear difference is made between temporary and proved explanations. For example, hypotheses(假设) and theories are attempts to explain natural phenomena. From these positions the scientist continues to experiment and observe until they are proved or discredited. The exact status of any explanation should be clearly labeled to avoid confusion.

The objectives of science are primarily the discovery and later the understanding of the unknown. Man cannot be satisfied with recognizing that secrets exist in nature of that questions are unanswerable; he must solve them. Toward that end, specialists in the field of biology and related fields of interest are directing much of their time and energy.

Actually, two basic approaches lead to the discovery of new information. One, aimed at satisfying curiosity, is referred to as pure science. Sometimes practical-minded people miss the point of pure science in thinking only of its immediate application for economic rewards. However, one should remember that the construction of the microscope had to come before the discovery of the cell. The host of scientists devoting their lives to pure science are not apologetic about ignoring the practical side of their discoveries; they know from experience that most knowledge is eventually applied.

The other is aimed at using knowledge for specific purposes--for instance, improving health, raising standards of living, or creating new consumer products. In this case, knowledge is put to economic use. Such an approach is referred to as applied science.

高二英语简单题查看答案及解析

任务型阅读（共10小题，每小题1分，满分10分）

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Everyone needs a break, and vacations are not meant for serious study. Instead, they’re a great way to take a break and enjoy a good book. The Spring Festival is coming up so this is the perfect time to discuss some great English language literature to take on a long train journey or while you’re hanging out with the family.

Before getting into the recommendations, we need to determine your English reading comprehension level so you don’t pick a book which is so challenging that it’s stressful or so simple that it’s boring.

If you’re at the beginner level, there are two options: reading a children’s book or reading a book that you’ve read in Chinese translation. This will help you get over any unfamiliar words or phrases, since you’re already familiar with the story. If you’re at the intermediate level, popular books like pop fiction, mysteries and thrillers are good options, as they’ll be guaranteed page turners and that will increase the possibility of your getting all the way through the book. For advanced readers, science fiction, classic works of literature or contemporary prize winners （Booker, Nobel, Pulitzer） are good options.

The most important thing is to pick a book that you’re really interested in. When I pick up a new book in Chinese, the first few chapters are always really hard to get through, as I have to get accustomed to the way the individual author uses the language. But after the first few chapters, things get a lot easier, especially if I get involved in the story. Some of my favorite Chinese-language eye candy are books that are series like Brothers by Yu Hua or The Dancer by Hai Yan. I like them because there’s always a lot of action and story development to keep me involved, which helps me make it through those first few chapters.

Another great way to keep yourself motivated over the holiday is to find a friend who’s interested in reading the same book. You can make goals that you both want to achieve and discuss plot lines or vocabulary issues with each other by SMS or e-mail. I’m currently doing that with my friend Laura. We’ve been doing this since we were classmates in Chinese at college.

Some quick recommendations: Harry Potter, start with the first book and go on from there; the Narnia series; anything by US writer Michael Crichton or British writer Agatha Christie; and if you like horror, US writer Stephen King is always unusual and fun. But really you should just find a topic or author that you’re interested in, and the rest will go from there. Happy reading!

－from 21st Century （January 21, 2009）

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Mirriam Websters online dictionary defines happy as: enjoying good health and satisfaction. Sounds nice, doesn’t it? I know a secret that can lead to happiness. Now you may ask, what secret is that? It’s a well-known secret, in fact. Perform a random(随意的) act of kindness per day.

Positive psychology is the scientific study of the strengths and virtues that enable individuals and communities to grow. According to University of Pennsylvania’s website, positive psychology has three central concerns: positive emotions, positive individual character, and positive systems. Understanding positive emotion includes the study of satisfaction with the past, happiness at present, and hope for the future. Understanding positive individual character consists of the study of the strengths and virtues, such as love, courage, creativity, curiosity, self-knowledge, self-control, and wisdom. Understanding positive systems needs the study of meaning and purpose as well as the strengths that help the growth of better communities, such as responsibility, leadership, teamwork, purpose, and tolerance(忍耐力).

Positive psychology focuses on strengths as well as weaknesses, on building the best things in life as well as repairing the worst. It asserts(断言) that human goodness and excellence is just as real as sadness and illness, and that life consists more than seeking the answers to problems. All these things can be summed up in one concept: giving can equal a meaningful life, i.e. happiness.

But you are probably wondering how. Well, let’s examine the research, shall we? A 1996 study showed that wealth is only weakly related to happiness both within and across nations, particularly when income is above the poverty level. So money does not mean happiness. In 2000, a different study showed that activities that make people happy in some way—such as shopping, good food and making money—do not lead to satisfaction in the long term, indicating that these have quick diminishing returns(收益递减).

However, on the other hand, we also know that people who witness others perform good deeds experience an emotion which drives them to perform their own good deeds. Making a contribution to the lives of other people may help to extend our own lives.

This is why I make a point of trying to do something nice every day. Sometimes I tip much larger than I need to. Sometimes I just smile at someone who looks like they really need it. A random act of kindness is an act that receives just as much as it gives. You’ll be happier. They’ll be happier. And you’ll live longer. So, please, perform a random act of kindness each day.

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How to Survive Embarrassing Moments

Have you ever done something embarrassing? At that moment, you probably wished you could disappear into thin air. Unfortunately, embarrassing things happen to everyone at one time or another. The good news? You can keep the damage to the minimum．Here's some help．

Laugh it off

You're staring at your crush （意中人） so hard that you walk into a wall．You trip over your own feet and drop all your books．The best thing you can do? As long as you're not seriously hurt, laugh it off．Say like "Hey, I can teach you to do that if you want to!" or "It took me years to learn that!" By laughing at yourself, you show people you're confident and still in control of the situation．That's bound to make a stronger impression than the fact that you dropped a stack of books．

Move on

Some situations are too personal to laugh off．Your underwear falls out of your backpack. Your bathing suit falls off in the pool．You pass gas while giving a presentation．Making a joke would just call more attention to what happened — and that's the last thing you want．What　 now? You can just pretend nothing happened and go back to what you were doing, or you can acknowledge it with a "Oh, that was awkward" and then move on．

If there's a joker who thinks it's a good idea to point out how badly you just embarrassed yourself, fix him with a glare and then go back to whatever you were doing．Tell yourself he's a　 little bug on the ground, not even worth thinking about．Remind yourself that it's over, done．Move on．

Apologize and move on

Some embarrassing situations pack a double punch．Not only do you embarrass yourself,　 but you make someone else feel bad．You say to a friend that another friend is such a copycat, and then realize the copycat is standing right behind you．You imitate your teacher's unusual accent just as the teacher walks in．Now you're embarrassed and they're mad or hurt．

Making a joke now would make the situation even worse, so don't go there．Although you might feel like running away or even crying, neither of those responses will make you look better．Instead, apologize, "I'm so sorry．That was really mean of me．"

If you've been disrespectful to a teacher or a parent, accept whatever consequences without complaint．If you've hurt a friend, do your best to make it up to them．Once you've done all you can to make things right again, move on．If someone else brings it up, just say, "I feel bad enough about that —can we just let it go, please?"

The next time you're stuck in an embarrassing moment, remind yourself that you're a strong person and you can get through this．Stay calm and act confident and the moment will pass．

高二英语其他题中等难度题查看答案及解析

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Artificial intelligence (AI) is rushing into business. Firms of all types are using AI to forecast demand, hire workers and deal with customers. The McKinsey Global Institute, a think-tank within a consultancy, forecasts that just applying AI to marketing, sales and supply chains could create economic value of $2.7trn over the next 20 years.

Such grand forecasts fuel anxiety as well as hope. Less familiar, but just as important, is how AI will transform the workplace.

Start with the benefits.AI ought to improve productivity. Humanyze, a people analytics software provider, combines data from its badges（工牌）with employees’ calendars and e-mails to work out, say, whether office layouts favour teamwork .Slack, a workplace messaging app, helps managers assess how quickly employees accomplish tasks. Companies will see when workers are not just dozing off but also misbehaving.

Employees will gain, too. Thanks to advance in computer vision, AI can check that workers are wearing safety equipment and that no one has been harmed on the factory floor. Some will appreciate more feedback on their work and welcome a sense of how to do better.

Machines can help ensure that pay rises and promotions go to those who deserve them. That starts with hiring. People often have biases but algorithms（算法）, if designed correctly, can be more unprejudiced. Software can flag patterns that people might miss.

Yet AI’s benefits will come with many potential drawbacks. Algorithms may not be free of the biases of their programmers, which can have unintended consequences. The length of a travel may predict whether an employee will quit a job, but this focus may harm poorer applicants. Older staff might work more slowly than younger ones and could risk losing their positions if all AI looks for is productivity. And surveillance（监控）may feel Orwellian—a sensitive matter now that people have begun to question how much Facebook and other tech giants know about their private lives.

As regulators and employers weigh the pros and cons of AI in the workplace, three principles ought to guide its spread. First, data should be anonymized where possible. Microsoft, for example, has a product that shows individuals how they manage their time in the office, but gives managers information only in aggregated（整合）form. Second, the use of AI ought to be transparent. Employees should be told what technologies are being used in their workplaces and which data are being gathered. As a matter of routine, algorithms used by firms to hire, fire and promote should be tested for bias and unintended consequences. Last, countries should let individuals request their own data, whether they are ex-workers wishing to contest a dismissal or jobseekers hoping to demonstrate their ability to prospective employers.

The march of Al into the workplace calls for trade-offs between privacy and performance. A fairer, more productive workforce is a prize worth having, but not if it chains employees. Striking a balance will require thought, a willingness for both employers and employees to adapt and a strong dose of humanity.

高二英语任务型阅读困难题查看答案及解析

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Mastering Storytelling Fundamentals

Whether you're telling a joke， telling a fairy tale， or trying to persuade someone with a little empirical evidence， telling a story well is an important skill． While it comes naturally to some， for others this skill is a learned one． Never fear． Just get started with the steps below．

1.Engage your audience．

Interact （互动） with your audience or do something to grab their attention． Ask them a question， even if it's just rhetorical， that relates to the conclusion， twist， or context for the story you’re going to tell． Alternatively you can make a grabbing statement that catches their attention （setting your hook， the equivalent of a click﹣bait headline）． This forces their attention to focus on the idea of your story and makes them want to hear more．

2.Build the scene．

Throughout your storytelling， you want to create an immersive experience． You want to tell your audience the story in a way that makes them feel like they're there． Start by giving them context when you start your story． Continue to create the scene by using details which help them picture the action and feel the things you felt． You'll also want to carefully tailor your language: use words which create very strong， very specific emotions．

3.Build tension and release tension．

Of course， the entire arc of a story should be building tension and releasing tension， until the climactic point in the story and the falling action of the conclusion． But what you need to remember is that a release of tension should come between the tension points． Without this release of tension， a story can feel rushed or too list﹣like． Real life includes moments between the things that happen to us． Stories should too． This release can be a description of the scene， and quick filling in of semi﹣relevant details， or a joke if the story is meant to be a bit funny．

4.Focus on what's important．

When telling a story， it is important to include details， to create that sense of immersion． However， you don't want the story to take on a "rambling" feel． This is why it's very important to focus on what's important． Cut the details that aren't important for the story， leave the ones that make the story．

5.Keep the flow logical．

This is where knowing your story and practicing become important． You know that person that tells a story and they get partway in and then they're like， "Oh， I forgot to mention…"？ Yeah， don't be that guy． Don't stop to back up． This breaks the listener's experience of the story． Tell the story in a way that is logical and flows smoothly．

6.Make it feel conclusive．

It's awkward when an audience isn't sure if you're done or not so make the conclusion of your story feel conclusive． There are a number of ways to do this， for example：

Ask a question and give an answer． "How crazy is that？ I know I'm sure not going to try that again．"

Mastering Storytelling Fundamentals

高二英语任务型阅读简单题查看答案及解析