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When most of us look at our hands, we might notice that we need to clean, or stop biting our fingernails, and that’s about it. But if you ask a doctor, he can see a whole lot more. Everything from poor diet and stress to serious kidney (肾) problems can be revealed by a glance at your fingernails.
There are about 30 different nail signs that can be associated with medical issues, though may indicate more than one problem, according to Dr.Amy Derick, a clinical instructor of dermatology at Northwestern University.
Here are five of the things a doctor can tell about your health based on your fingernails.
1. People who aren’t eating well and lack vitamin or dietary may have thinner than normal nails, which are more likely to break.
2.Horizontal (水平的) lines are associated with serious physical stress. They frequently occur in people who have gone through chemotherapy(化疗).They can also occur after some illnesses, injuries, or with severe malnourishment(营养不良).Interestingly, there may be an altitude connection too. They’ve also been found in people who dove 1,000 feet and others who participated in an Everest exploration.
3. Vertical （垂直的）lines, however, are generally not such a big deal. Some people are more genetically prone to them than others, but they’re commonly associated with aging.
4. When people lack iron, their nails can turn spoon-like. Instead of curving down and covering the finger normally, they ’ll start to rise up on the sides and front, like the part of a spoon that holds liquid.
5. Kidney and liver problems can create “half-and-half nails”, where one part of the nail is white and the other part dark or pink, according to Derick.
Doctors note that because disease diagnosis is complex and some symptoms can be associated with different diseases, you should always see a medical professional if you are concerned about something you notice.
1. What is the main idea of the passage?
A. Doctors can tell us something about our health by looking at our nails.
B. We should see a doctor if we find nails in bad condition.
C. A famous doctor in the USA conducted an interesting research.
D. If we don’t want to get ill, we need to clean and stop biting our fingernails.
2. If we don’t eat well or regularly, our fingernails may ________.
A. become harder than normal nails.
B. become thinner than normal nails.
C. become “half-and-half” nails.
D. have horizontal and vertical lines.
3.Who will have horizontal lines on the nails ?
A. A cancer patient who has received normal treatment.
B. Hungry African children suffering from severe malnourishment.
C. An explorer who had reached Zhangjiajie in Hunan Province.
D. A patient with serious illness, like kidney and liver problems.
4. Which of the following best describes the nails that show people lack iron?
A. The nails are thinner and more likely to break.
B. The nails will curve down and cover the fingers.
C. The nails will start to rise up on the sides and front.
D. The nails will change their colours on the surface.
高三英语阅读理解困难题查看答案及解析
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Most of us don’t reach for that gnarled (多瘤的) carrot when selecting our produce at the local supermarket. That’s exactly why Americans waste up to 40% of edible food every year. This unbelievable number has sparked the “ugly food” movement, inspiring many companies to sell ugly fruit and vegetables to consumers, rather than throwing them in the trash.
One San Francisco organization is taking a unique approach. The Salvage Supperclub hosts fancy dinners inside dumpsters (垃圾箱) where they serve dishes entirely prepared with food that would have otherwise gone to waste.
Josh Treuhaft, founder of these ugly food dinners, originally came up with the idea to bring about the awareness of America’s food waste problem. “There is undeveloped potential in their food that for some reason, not to their own fault, is going to waste,” he told Seeker’s Laura Ling.
Treuhaft isn’t alone in his effort to reduce America’s food waste. A change.org request last year called for Whole Foods to become part of the ugly food movement. They sold misshapen (畸形的) fruits and vegetables in Northern California stores.
Selling imperfect produce is still relatively rare right now, which can be partially attributed to a supply issue rather than a lack of willing participants. Raley’s, a Sacramento-based grocery chain, started an ugly food pilot program called “Real Good”, but discontinued it after 90 days saying they had “some challenges sourcing the product” A grower might have large amounts of ugly produce one year due to terrible weather, but much less the next year if the weather is better. Harvests constantly vary and retailers are more likely to buy ugly produce in large number rather than just a few pounds at a time.
This is why organizations like the Salvage Supperclub are playing an important role in the prevention of food waste. The Salvage Supperclub takes it a step further by not only buying the ugly product, but turning it into a good dining experience as well.
1.What does the underlined words “edible food” in Paragraph 1 refer to?
A. Healthy food. B. Expensive food.
C. Food suitable to eat. D. Food grown locally.
2.Why does the Salvage Supperclub have dinners inside the dumpsters?
A. To share their fancy ideas.
B. To warn people not to waste.
C. To show waste should be reused.
D. To advise people not to throw dumpsters.
3.What makes Raley’s stop its “Real Good” after 90 days of its operation?
A. Lack of sources of product.
B. Retailers’ pursuing larger profit.
C. Bad harvests due to bad weather.
D. People’s unwillingness to buy imperfect produce.
4.Which of the following can be the best title for the text?
A. Joining in the Ugly Food Movement.
B. An Unusual Dining Experience.
C. Making Full Use of Ugly Food.
D. The Food Waste Problem in America.
高三英语阅读理解中等难度题查看答案及解析
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Most of us don’t reach for that gnarled (多节的) carrots when selecting our produce at the local supermarket. That’s exactly why Americans waste up to 40% of eatable food every year. This unbelievable number has sparked the “ugly food” movement, and inspired many companies to sell misshapen fruit and vegetables to consumers, rather than throw them in the trash.
One San Francisco organization is taking a unique approach to this idea. The Salvage Supperclub hosts fancy dinners inside dumper truck (卸车) where they serve dishes entirely prepared with food that would have otherwise gone to waste.
Josh Treuhaft, founder of these ugly food dinners, originally came up with the idea 10 bring awareness to America’s food waste problem. “There is undeveloped potential in their food that for some reason, not to their own fault, is going to waste,” he told Seeker’s Laura Ling.
Treuhaft isn’t alone in his effort to reduce America’s food waste. A Change, org last year willed for Whole Foods to become part of the ugly food movement. They sold misshapen fruit and vegetables in Northern California stores.
Selling imperfect produce is still relatively rare right now, which can be partially due to a supply issue rather than a lack of willing participants. Raley’s, a Sacramento-based grocery chain, started an ugly food pilot program called “Real Good”, but discontinued it after 90 days saying they had “some challenges sourcing the product”. A grower might have large amounts of ugly produce one year due to terrible weather, but much less the next year if the weather has been more ideal. Harvests constantly vary and retailers are more likely to buy ugly produce in large number rather than just a few pounds at a time.
This is why organizations like Imperfect Produce and Salvage Supperclub are playing an important role in the prevention of food waste. Salvage Supperclub takes it a step further by not only buying the ugly produce, but turning it into a good dining experience as well.
1.What can we infer from Paragraph 1?
A. People usually prefer Rood-looking produce.
B. Gnarled carrots mostly appear in the supermarket.
C. Many companies find new business opportunities.
D. Americans eat less fruit and vegetables than expected.
2.Why does the Salvage Supperclub have dinners inside the dumper truck?
A. To prove his fancy idea.
B. To remind people not to waste.
C. To show waste can be eaten.
D. To advise people lo dine in dumper truck.
3.What’s Josh Treuhaft’s advice to reduce America’s food waste?
A. People should reduce the ugly food.
B. People should make full use of ugly food.
C. People should be more aware of food shortage.
D. People should develop their potential in producing food.
4.Why did Raley’s stop its “Real Good” after 90 days?
A. Retailers’ pursuing larger profit.
B. Bad harvests due to bad weather.
C. Lack of steady sources of produce.
D. People’s unwillingness to buy imperfect produce.
高三英语阅读理解困难题查看答案及解析
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Most of us have looked up at the stars that fill the night sky and wondered whether we’re alone in the universe. Indeed, the question of whether there’ s life out there has been something humankind ’s been asking itself for countless years. But thanks to China’s Five-hundred-meter Aperture Spherical Telescope (FAST), the answer to this question may come a lot sooner than we expected.
The telescope has a huge round reflector, which measures 500 meters across and has a perimeter（周长）of 1.6 kilometers. Because of its great size, it would have been both difficult and inefficient to get FAST to move like a regular telescope. Instead, FAST’s designers came up with a great solution: its surface is made up of 4450 panels which can be individually adjusted. This clever design feature allows scientists to detect radio signals from any angle with a great degree of accuracy. “Panels can change their positions through connected wires and parallel （关联的） robots. We can control their position with an accuracy of 1 mm,” Zheng Yuanpeng, chief engineer of the telescope’s panel project, told Xinhua News Agency.
FAST’s engineers also had the task of finding a suitable location. As any interference would affect its ability to detect distant radio waves, it needed to be built in a remote area. Luckily, the perfect spot was found in the beautiful mountains of Guizhou Province. “There are three hills about 500 meters away from one another, creating a valley that is perfect to support the telescope," Sun Caihong, chief engineer of FAST’ s construction, told Xinhua.
And although it wasn’t yet fully operated, FAST had already made great discoveries by October 2017. Since 1967, only around 2000 pulsars （脉冲星） have been discovered, yet FAST had detected six more by October 2017. Once FAST is fully up and running, we may finally have the answer to one of the biggest questions in history.
1.What is the purpose of mentioning the question in Paragraph 1?
A.To introduce the new giant telescope.
B.To explain why there is life in universe.
C.To remind readers to think about the life in space.
D.To emphasize the question that should be answered.
2.What can we know from Paragraph 2?
A.The telescope is made up of many panels.
B.The area of FAST is about 800 square kilometers.
C.The engineer can handle FAST’s position accurately.
D.The individual panel helps scientists catch radio signals.
3.Why was FAST built in Guizhou?
A.Because Guizhou is a remote province.
B.Because Guizhou has an ideal valley.
C.Because Guizhou has beautiful mountains.
D.Because Guizhou has the ability to build it.
4.What does the last paragraph mainly talk about?
A.FAST’s timeline. B.FAST’s future.
C.FAST’s operation. D.FAST’s discoveries.
高三英语阅读理解中等难度题查看答案及解析
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When we meet the homeless, most of us might avoid eye contact and walk a little faster. 1. What's his or her story? How long have they lived on the streets? Maybe you even wanted to help, but didn't know how to start a conversation. Then the following might help you.
2. Is there another way I can help?
This is an especially good thing to say if you're uncomfortable handing over cash or don't have any to offer. Undoubtedly, money is something that a homeless person needs, but often there is a specific thing that can quickly help that person out of a terrible situation.
Did you catch the game?
3. Talking about sports is a good idea. While there is a game, bring it up like talking about the weather — sports is a topic of conversation that you don't have to be of a certain class to experience.
Good morning.
Say “hi” or “hello” or try to acknowledge the person in some way. 4. Regardless of what your greeting may be, it's important to look the person in the eye when speaking. According to the homeless, one of the many difficult things about being homeless is that you feel less than human.
How are you doing? Would you like to talk?
These questions are great because they're open-ended. Don't be surprised if people are not interested in chatting, though. You're getting into their personal lives. 5. If, however, the person is open to talking, this can lead to a real conversation — and maybe even provide a way for you to offer help.
A.I don't have any money.
B.It's good to hear kindness.
C.But you might also think about the situation.
D.Maybe they don't want to discuss that with a stranger.
E.Athletic events are often shown on televisions on the streets.
F.The non-homeless person almost never looks the homeless in the eye.
G.Offering a wish of good will can be a powerful thing to the homeless.
高三英语七选五简单题查看答案及解析
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Look at any advertisement for a fashion（时尚）store,and you may notice that most of the models are teens.In Western culture,especially,fashion is an extremely important component of teenage life.But "Why?" you may ask.
For teenagers,fashion is first and foremost a social statement.It is a means of expression to their peers（同龄人）and the rest of the world.
Fashion also provides teenagers a sense of identity by signalling which "grouping" they belong to.It many signal a more independent or inclusive personality.
Teens can be extremely conscious about overall image.They will often make use of fashion as a means to attract a certain type of person.
Rebellion（叛离）may also be acted out via fashion.Since rebellion is often a huge aspect of a teenager's life, teens often use shocking fashion to rebel against their parents,their classmates, and/or society.
Many teens pick up on fashion trends in an effort to avoid losing face.Poor fashion choices in the eyes of others can often be an open door to ridicule.
Often,fashion for teenagers is the result of the desire to be like a celebrity（名人）.Celebrities are perhaps the greatest influences on teenagers in the modern world,and the can have a huge effect on a teen's ideas about fashion and its importance.
1.What is the best tide for the text?
A. Why is fashion so important to teens? B. Why do teens learn from celebrities?
C. What fashion do teens want? D. Who leads the fashion?
2.For teens,fashion .
A. has a deep effect on celebrities B. is about expressing themselves
C. can prevent them from rebelling D. will remove their peer pressure
3.Which of the following can describe the main point of Paragraph 3?
A. Fashion and independence. B. Fashion and peers.
C. Fashion and teenagers. D. Fashion and identity.
高三英语阅读理解中等难度题查看答案及解析
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Can you be too beautiful? It is hardly a problem that most of us have to bother—as much as we might like to dream that it were the case.
Yet the blessings and curses of beauty have been a long-standing interest in psychology. Do those blessed with shiny faces and an attractive body live in a cloud of appreciation—or does it sometimes pay to be ordinary?
Combing through decades of findings, social psychologists Lisa Slattery Walker and Tonya Frevert at the University of North Carolina at Charlotte have reviewed all the evidence to date and their conclusions are not what you might expect.
At the most basic level, beauty might be thought to carry a kind of halo(光环) around it; we see that someone has one good quality, and by association, our deep mind may assume that they have other good ones too.
Even in the courts, a pleasing appearance can work its magic. Attractive criminals are likely to get less strict sentences, or to escape punishment entirely; attractive plaintiffs, meanwhile, are more likely to win their case and get bigger financial settlements. “It’s an effect seen everywhere,” says Walker.
But if beauty pays in most circumstances, there are still situations where it can have opposite results. While attractive men may be considered better leaders, for instance, hidden sexist prejudices can work against attractive women, making them less likely to be hired for high-level jobs that require power. And as you might expect, good-looking people of both sexes run into envy—one study found that if you are interviewed by someone of the same sex, they may be less likely to employ you if they judge that you are more attractive than they are.
More worryingly, being beautiful or handsome could harm your medical care. We tend to link good looks to health, meaning that illnesses are often taken less seriously when they affect the good-looking. When treating people for pain, for instance, doctors tend to take less care over the more attractive people.
And the bubble of beauty can be a somewhat lonely place. One study in 1975, for instance, found that people tend to move further away from a beautiful woman on the pathway — perhaps as a mark of respect, but still making interaction more distant. “Attractiveness can convey more power over visible space—but that in turn can make others feel they can’t approach that person,” says Frevert. Interestingly, the online dating website OKCupid recently reported that people with the most beautiful pictures are less likely to find dates than those with less perfect pictures.
Ultimately, Frevert points out that focusing too much on your appearance can itself be harmful if it creates stress and anxiety — even for those already blessed with good looks. “If you are crazy about attractiveness, it may affect your experience and interactions,” she says. It’s an outdated saying, but no amount of beauty can make up for a bad personality. As the writer Dorothy Parker put it so elegantly: “Beauty is only skin deep, but ugly goes clean to the bone.”
1.From paragraph 1, we can learn that _______.
A.some may be bothered by their unattractive appearance
B.most people are not afraid of being too beautiful
C.we might always dream about being bothered by others
D.being too beautiful can be a problem bothering everyone
2.Which is the benefit for beautiful people?
A.Good-looking people are often regarded as having many good qualities.
B.Beautiful criminals are more likely to persuade the judge and win the case.
C.An attractive plaintiff has more chances to get away with punishment.
D.Women with pleasing appearance will always be considered as better leaders.
3.The writer mentioned the underlined sentence in the last paragraph to _______.
A.persuade us to pay more attention to our looks from now on
B.suggest that beauty can help make a better personality
C.encourage us to focus more on improving our personality
D.ask ugly people to have more confidence in their personality
4.What might be the best title for the passage?
A.Real Beauty B.Sexist Prejudice
C.Blessed with Beauty D.Beauty, a Blessing?
高三英语阅读理解中等难度题查看答案及解析
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Now let us look at how we read. When we read a printed text, our eyes move across a page in short, jerky movement. We recognize words usually when our eyes are still when they fixate. Each time they fixate, we see a group of words. This is known as the recognition span or the visual span. The length of time in which the eyes stop ---the duration of the fixation ----varies considerably from person to person. It also varies within any one person according to his purpose in reading and his familiarity with the text. Furthermore, it can be affected by such factors as lighting and tiredness.
Unfortunately, in the past, many reading improvement courses have concentrated too much on how our eyes move across the printed page. As a result of this misleading emphasis on the purely visual aspects of reading, numerous exercises have been devised to train the eyes to see more words at one fixation. For instance, in some exercises, words are flashed on to a screen for, say, a tenth or a twentieth of a second. One of the exercises has required students to fix their eyes on some central point, taking in the words on either side. Such word patterns are often constructed in the shape of rather steep pyramids so the reader takes in more and more words at each successive fixation. All these exercises are very clever, but it’s one thing to improve a person’s ability to see words and quite another thing to improve his ability to read a text efficiently. Reading requires the ability to understand the relationship between words. Consequently, for these reasons, many experts have now begun to question the usefulness of eye training, especially since any approach which trains a person to read isolated words and phrases would seem unlikely to help him in reading a continuous text.
1.The time of the recognition span can be affected by the following facts except ________ .
A. the length of a group of words.
B. lighting and tiredness.
C. one’s familiarity with the text.
D. one’s purpose in reading.
2.The author may believe that reading ______.
A. demands an deeply-participating mind.
B. demands more mind than eyes.
C. requires a reader to take in more words at each fixation.
D. requires a reader to see words more quickly.
3.What does the author mean by saying “but it’s one thing to improve a person’s ability to see words and quite another thing to improve his ability to read a text efficiently.” in the second paragraph?
A. The reading exercises mentioned can’t help to improve an efficient reading.
B. The reading exercises mentioned has done a great job to improve one’s ability to see words.
C. The ability to see words is not needed when an efficient reading is conducted.
D. The reading exercises mentioned can’t help to improve both the ability to see or comprehend words.
4.Which of the following is NOT true?
A. The emphasis on the purely visual aspects is misleading.
B. The eye training will help readers in reading a continuous text.
C. The visual span is a word or a group of words we see each time.
D. Many experts began to question the efficiency of eye training.
5.The tune of the author in writing this article is ________.
A. pessimistic B. optimistic C. critical D. neutral
高三英语简单题查看答案及解析
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Now let us look at how we read．When we read a printed text, our eyes move across a page in short, rough movement．We recognize words usually when our eyes are still when they fixate(凝视)．Each time they fixate, we see a group of words．This is known as the recognition span or the visual span．The length of time of which the eyes stop ---the duration of the fixation ----varies considerably from person to person．It also varies within one person according to his purpose in reading and his familiarity with the text．Furthermore, it can be affected by such factors as lighting and tiredness．
Unfortunately, in the past, many reading improvement courses have concentrated too much on how our eyes move across the printed page．As a result of this misleading emphasis on the purely visual aspects of reading, numerous exercises have been devised to train the eyes to see more words at one fixation．For instance, in some exercises, words are flashed on to a screen for, say, a tenth or a twentieth of a second．One of the exercises has required students to fix their eyes on some central point, taking in the words on either side．Such word patterns are often constructed in the shape of rather steep pyramids so the reader takes in more and more words at each successive fixation．All these exercises are very clever, but it’s one thing to improve a person’s ability to see words and quite another thing to improve his ability to read a text efficiently．Reading requires the ability to understand the relationship between words．Consequently, for these reasons, many experts have now begun to question the usefulness of eye training, especially since any approach which trains a person to read isolated words and phrases would seem unlikely to help him in reading a continuous text．
59．The time of the recognition span can be affected by the following facts EXCEPT________ ．
A．one’s familiarity with the text B．one’s purpose in reading
C．the length of a group of words D．lighting and tiredness
60．The author may believe that reading ______．
A．requires a reader to take in more words at each fixation
B．requires a reader to see words more quickly
C．demands a deeply-participating mind
D．demands more mind than eyes
61．What does the author mean by saying the underlined sentence in the second paragraph?
A．The ability to see words is not needed when an efficient reading is conducted．
B．The reading exercises mentioned can’t help to improve both the ability to see and to
comprehend words．
C．The reading exercises mentioned can’t help to improve an efficient reading．
D．The reading exercises mentioned have done a great job to improve one’s ability to see
words．
62．What is the writer’s attitude in writing this passage?
A．critical B．neutral C．pessimistic D．optimistic
高三英语阅读理解简单题查看答案及解析
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Most of us would say that the older we get, the less we look forward to celebrating another birthday. For children, though, a birthday is that one occasion each year when they are the center of attention all day long.
It’s not surprising, then, that children’s birthday parties have turned into big business in America. Kids—or more likely their parents—often try to outdo one another in putting on the most extravagant birthday party. In the past, you might have hired a man with a horse to come by and give everyone horse rides. Today, you can hire an entire petting zoo’s or a truck filled with animals from abroad.
Barb Hill, a mother of two girls, doesn’t hold extravagant (奢侈的) parties, but she says she does feel pressure to come up with new ideas each year. Her daughter Fiona celebrated her most recent birthday, her eighth, at a sporting-goods store. The kids enjoyed the climbing wall, as well as the pizza and cupcakes. “They always want to do something that nobody else has done yet,” Barb says. You also have to decide how many guests to invite, and if you’re celebrating at a place other than home, that means figuring out how to transport everyone.
William Doherty, a professor at the University of Minnesota, recently started a project called Birthdays without Pressure. Its website (www. birthdayswithoutpressure.org) gives parents the resources to make kids’ birthday parties less stressful and more fun for all. “Our goal was to start a local and national conversation about what’s happened to birthday parties,” Doherty told me. “We’ve succeeded beyond our expectations—tens of thousands of parents are viewing our website, contacting us and taking our online quizzes.”
In the end, most parents would agree that the best parties are usually the ones where the kids have time to hang out and play with each other. After all, isn’t what being a kid is all about?
1. The purpose of this passage is to tell us_________.
A.all the children look forward to celebrating their birthday
B.the children’s birthday parties have turned into big business in America
C.parents would like to make children’s birthday parties less stressful and more fun for all
D.parents don’t know how to hold children’s birthday parties
2. Which of the following sentences is TRUE ______.
A.The girl didn’t enjoy the party held by her mother.
B.The project called Birthdays without Pressure is popular with parents.
C.Children look forward to their birthday parties because they like extravagant parties.
D.Parents feel like hiring an entire petting zoo for their children.
3. The aim of the project called Birthdays without Pressure is to______.
A.attract parents to view the website
B.provide resources for making kids’ birthday parties
C.release parents’ stress of organizing children’s birthday parties
D.hold conversation about what’s happened to birthday parties
4. The best title for this passage may probably be ______.
A project called Birthdays without Pressure
B.Children enjoy their birthday parties
C. How to hold children’s birthday parties
D. How children feel about their birthday parties
高三英语阅读理解简单题查看答案及解析