Eyesight is the sense that you rely upon the ...

Eyesight is the sense that you rely upon the most. Since we live in a world that requires your eyes to routinely stare at the small type and images on cell phones, computer screens, and televisions, it is important for you to improve and protect your eyesight. 1.

Eyes are just like any other part of the body. 2.Similar to other organs, a diet high in fruits and vegetables and low in sugar and fatty foods will go a long way in maintaining healthy eyes.

3.Plan to exercise your eyes when you wake up, before going to bed, or when your eyes are tired. Make sure your hands are clean so that you do not hurt your eyes and your mind is relaxed before starting.

Since you use your eyes every waking moment, give them lots of rest and relaxation by taking breaks throughout the day and getting enough sleep every night to fully rest, repair, and recover your vision. 4. In the short term, it can cause eye strain (疲劳) or dry eyes. In the long term, it can lead to damage to the optic nerve (视觉神经), which can cause pain and damage your vision.

Besides, most jobs nowadays involve some degree of computer usage, meaning almost everyone will be spending time in front of a computer. 5.To avoid this, you’ll have to properly try to limit your screen time by routinely taking breaks and exercising your eyes.

A. They need nutrition to function well.

B. Close your eyes when exercising your eyes.

C. A lack of sleep will weaken your vision health.

D. You can enjoy your vision for the rest of your life.

E. Unfortunately, this can result in eye strain or injury.

F. There are many ways to keep your eyesight healthy and sharp.

G. Exercising your eyes daily will help you maintain healthy eyes.

高二英语七选五中等难度题查看答案及解析

One of a doctors’ most valuable tools is his nose. Since ancient times, medics have relied on their sense of smell to help them work out what is wrong with their patients. Fruity odors (气味) on the breath, for example, let them monitor the condition of diabetics (糖尿病病人).

But doctors can, as it were, smell only what they can smell—and many compounds characteristic of disease are odorless. To deal with this limitation, Hossam Haick, a chemical engineer at the Technion Israel Institute of Technology in Haifa, has developed a device which, he claims, can do work that the human nose cannot.

The idea behind Dr. Haick’s invention is not new. Many diagnostic “breathalysers” already exist, and sniffer dogs, too, can be trained to detect illnesses such as cancer. Most of these approaches, though, are disease-specific. Dr. Haick wanted to generalize the process.

As he describes in ACS Nano, he and his　 colleagues created a series of electrodes made　 of carbon nanotubes (纳米碳管). Each of these had one of 20 organic films laid over it. Each film was sensitive to one of a score of compounds known to be found on the breath of patients suffering from a range of 17 illnesses, including Parkinson’s disease, multiple sclerosis, and bladder cancer. When a film reacted, its electrical resistance changed in a predictable manner. The combined changes produced an electrical fingerprint that would be diagnostic of the disease a patient was suffering from.

To test their invention, Dr. Haick and his colleagues collected 2,808 breath samples from 1,404 patients who were suffering from at least one of the diseases. Its success varied. It could distinguish between samples from patients suffering from gastric cancer and bladder cancer only 64% of the time. At distinguishing lung cancer from head and neck cancer it was, though, 100% successful. Overall, it got things right 86% of the time. Not perfect, but a useful aid to a doctor planning to conduct further investigations. And this is only the first model. Slightly adjusted, its success rate would be expected to improve.

1.How useful is nose to doctors?

A.They can smell what other people can’t.

B.They could tell which diseases are odorless.

C.They diagnose illness through their sense of smell.

D.They will apply new device to helping with diagnosing illness.

2.What is the most special aspect of the new invention?

A.It can help detect more than one disease.

B.It is made of a series of electrodes.

C.It works through analyzing patients’ electrical fingerprints.

D.It can be used to help diagnose cancers.

3.What can we infer about the device?

A.It’s the first invention by using principle of sense of smell.

B.It will be a useful tool in diagnosing lung cancer.

C.Its success rate differs from patient to patient.

D.It can successfully tell Bladder cancer from other cancers.

4.What is the best title for this passage?

A.High Tech in diagnosing illness B.A new way in diagnosing illness

C.Diagnosing illness　 can be easy D.Diagnosing illness by smell

高二英语阅读理解中等难度题查看答案及解析

Most of us would like to have glowing skin, especially as we get older. The good news is that you don’t have to wait until summer to catch some sun rays. Scientists have found eating plenty of fruit and vegetables is by far the best way to achieve a healthy, golden glow.

Dr. Ian Stephen said, “Most people think that the best way to improve their skin color is to get a suntan（棕褐色）. But our research shows that eating lots of fruit and vegetables is actually more effective.”

The team first assessed the skin color of people in relation to their diet. Those who ate more fruit and vegetables a day were found to have a more golden, yellow skin color. Those with a healthy glow had a higher presence of carotenoids（类胡萝卜素）, which play a role in the immune system. Carotenoids are commonly found in fruit and vegetables such an yellow and red peppers, spinach, apricots and melons.

The team then studied the relation between skin tone and attractiveness. They used specialist software to operate the skin color on the images of 51 faces to simulate（模拟）more or less carotenoids and suntans. Participants were then asked to adjust the skin color to make the faces look as healthy as possible. Given the choice between skin color enhanced by suntans and skin color enhanced by carotenoids, people preferred the carotenoids skin color.

The study shows that not only do people use skin color to judge how healthy other individuals are, but they are accurate when they make those judgments. While this study focus on Caucasian（白种人的）faces, it suggests this phenomenon may exist across cultures, since similar preferences for skin yellowness are found in an African population.

1.Which statement is TRUE according to the text?

A. Carotenoids are only found in the fruit.

B. Carotenoids are important in the immune system

C. Carotenoids can be improved by catching sun rays.

D. Carotenoids are the only factor that affects the skin color.

2.According to the text, people preferred _______.

A. the yellow skin color

B. the skin color as white as possible

C. the skin color enhanced by suntans

D. the skin color enhanced by carotenoids

3.What can we learn from the text?

A. Young girls should not eat many melons.

B. There’s no need to worry about our skin color.

C. We cannot judge a person from his appearance.

D. Skin color is a clue to judge whether a person is healthy or not.

4.What’s the author’s intention of writing this passage?

A. To show us how to get glowing skin.

B. To persuade us to get suntans every day.

C. To explain different diets in different cultures.

D. To share his experience of improving the skin.

高二英语阅读理解中等难度题查看答案及解析

From news on education in Yunnan，we can sense that the problem of lacking resources is particularly __________ in rural areas.

A. advanced　　 B. promoted

C. mistaken　　 D. acute

高二英语单项填空简单题查看答案及解析

It is the most instructive lecture that I ________ since I came to this school.

A. attended　　 B. had attended

C. am attending　　 D. have attended

高二英语单项填空中等难度题查看答案及解析

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(原告), 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 one, we can learn that _______.

A. we might always dream about being bothered by others[

B. most people are not afraid of being too beautiful

C. some may be bothered by their unattractive appearance

D. being too beautiful can be a problem bothering everyone

2.Which is the benefit for beautiful people?

A. An attractive plaintiff has more chances to get away with punishment.

B. Beautiful criminals are more likely to persuade the judge and win the case.

C. Good-looking people are often regarded as having many good qualities.

D. Women with pleasing appearance will always be considered as better leaders.

3.What can be inferred from OKCupid’s finding?

A. Don’t use perfect pictures when trying to find dates online.

B. Less attractive women are lonely because of their appearances.

C. We may feel more excited to approach those with attractive appearances.

D. People with perfect pictures will find dates sooner or later.

4.What might be the best title for the passage?

A. Sexist Prejudice　　 　　　 B. Negative Sides of Beauty

C. Blessed with Beauty　　　　 D. Beauty vs Ugliness

高二英语阅读理解中等难度题查看答案及解析

You may ____________ it that Jennifer will come and help us if we are in trouble.

A. base on　　 B. rely on

C. carry on　　 D. hold on

高二英语单项填空中等难度题查看答案及解析

Whenever we hear about “the homeless”, most of us think of the Developing world. But the 　　 　 is that homelessness is everywhere. For example, how many of us would expect to see people living on the streets of a 　　 　　 country like Germany?

Kurt Muller and his wife Rita have spent eleven years making 　　 　　 for the homeless of Berlin, Germany's capital. They first 　　 　　 one long hot summer when most Germans were　 　　 　　 on holiday. Kurt and his wife stayed at home, made sandwiches,　　 　　 a table in the street and gave food to the homeless.

The Mullers soon realized that food and clothing weren't 　　 　　 . “What these people also need is warmth and 　　 　 ,” says Rita. The Mullers didn't 　　 　　 to give their phone number to the street people and told them to phone anytime. Rita 　　 　　 there was somebody at home to answer the phone and their home was always 　　 　　 to anyone who couldn't face another night on the street.

The couple were soon 　　 　　 all their time and money, so Kurt visited food and clothing companies to 　　 　 donations. Today, over thirty companies 　　 　　 donate food and other goods to the cause and volunteers help to　　 　　 them to the homeless. The public also give clothes and money and a shoe producer 　　 　　 new shoes.

Kurt and Rita receive no 　　 　　 for their hard work. “We feel like parents,” says Rita, “and parents shouldn't 　　 　　 money for helping their children. The love we get on the streets is our salary.” Though Rita admits she often gets 　　 　　 . She says she will continue with her work because she likes the feeling of having made a 　　 　 in the world.

1.A. result　　　　　　　　　 B. idea　　　　　　　 C. reason　　　　　　 D. truth

2.A. traditional　　　　　　 B. developing　　 C. wealthy　　　　　 D. typical

3.A. preparations　　　　 B. meals　　　　　　 C. house　　　　　　　 D. suggestions

4.A. began　　　　　　　　 B. met　　　　　　　 C. called　　　　　　 D. left

5.A. asleep　　　　　　　 　 B. alone　　　　　　 C. away　　　　　　　 D. across

6.A. brought up　　　　 B. put aside　　　　 C. set up　　　　　　 D. gave away

7.A. enough　　　　　　 　　 B. necessary　　　　 C. helpful　　　　　　 D. expensive

8.A. caring　　　　　　 　　 B. freedom　　　　 C. courage　　　　　　 D. fame

9.A. pretend　　　　　　 　　 B. agree　　　　　　 C. hesitate　　　　 D. intend

10.A. make sense　　　　 B. make sure　　　 C. found out　　　　 D. worked out

11.A. near　　　　　　　　 　　 B. crowded　　　　 C. noisy　　　 D. open

12.A. costing　　　　　　 B. wasting　　　　 C. spending　　 D. taking

13.A. pay for　　　　　　 B. ask for　　　　 C. look into　　 D. carry out

14.A. regularly　　　　 　　 B. calmly　　　　　 C. completely　　 D. roughly

15.A. advertise　　　　　 　　 B. sell　　　　　　 C. deliver　　 　　 D. lend

16.A. collects　　　　　 　　 B. produces　　　　 C. designs　　　　 D. donates

17.A. permission　　　　 B. payment　　　　 C. direction　　　　　　 D. support

18.A. borrow　　　　　　 B. raise　　　　　　 C. expect　　　　　　　　　 D. save

19.A. tired　　　　　　 B. excited　　　　　 C. surprised　　　　　　　 D. amused

20.A. profit　　　　 B. rule　　　　　　 C. decision　　　　　　　 D. difference

高二英语完形填空中等难度题查看答案及解析

Every one of us has shortcomings. However, what’s the most important is that we should recognize them and overcome them.

注意：①无须写标题，不得照抄英语提示语；

②除诗歌外，文体不限；

③文中不得透漏个人姓名和学校名称；

④词数不少于120。

高二英语书面表达中等难度题查看答案及解析

In most people's opinion, the tiger is not an animal that we would ordinarily think of as being chicken. However, one tiger, which lives in an English zoo, turned out to be more cowardly（胆小的）than his keepers could ever have imagined.

Tanvir, a two-year-old Bengal tiger, got stuck at the top of a new 5m-high activity tower in the zoo, after climbing it for the first time.

The wooden tower had been designed to provide mental exercise for Tanvir by testing his ability of dealing with troublesome situations, but after climbing it in just a few seconds, he lost his courage when it came to coming back down. Tanvir went on to spend nearly two days at the top of the tower trying to collect the courage to attempt to get down.

A spokesperson for the zoo said that several days before Tanvir had taken half an hour to get down a lower tower only 1.5m high, and the taller tower had clearly been too much challenging for him.

"Every time he got to the edge, he looked out, put a paw over, and thought, ‘no, I cannot make it!" ’laughed Samantha Cordrey, Tanvir's keeper. In the end Tanvir's hunger defeated his fear, and after almost 48 hours he made his way down. Burying himself in a big meal just like a hungry pig, Tanvir seemed to forget such a shameful experience for a while.

It appears that his experience would not be the worst in Tanvir's life if he continued to act like a chicken. It is not known whether he will take courage to go back up his exercise tower again.

The whole episode（插曲）only serves to show the difficulties faced by zoo staff in creating environments that will improve animals' living ability in enclosed space.

1.When speaking of Tanvir's shameful experience, Samantha Cordrey might feel it was　　　　 .

A. funny　　 B. surprising　　 C. exciting　　 D. unbelievable

2.What made Tanvir get down the 5m-high activity tower at last?

A. The coldness of the weather.　　 B. The direction from his keepers.

C. The sufferings of being hungry.　　 D. The fear of being alone.

3.Why does the author say "this experience would not be the worst in Tanvir's life if..."(Paragraph 6)?

A. Because Tanvir's keepers will design more difficult exercise for him.

B. Because Tanvir is so cowardly that he has little courage to meet greater challenges.

C. Because Tanvir's bad health will bring him much trouble in practice.

D. Because Tanvir is always careless and often causes trouble by accident.

4.The zoo designed the 5m-high activity tower to　　　　 .

A. make Tanvir become brave　　 B. improve Tanvir's performance skills

C. let tourists watch Tanvir better　　 D. improve Tanvir's living ability

高二英语阅读理解中等难度题查看答案及解析