Growing evidence shows _______ exercising won...

Growing evidence shows _______ exercising won’t protect us if we sit too much.

A． when　　　　 B． what

C． that　　　　 D． whether

高三英语单项填空中等难度题查看答案及解析

As the price of a college degree continues to rise, there's growing evidence that the monetary（货币的） payoff isn't quite as big as often advertised. The best estimate now is that a college degree is worth about $300,000 in today's dollars--nowhere near the million figure that is often quoted.

"That million number has driven me crazy!" says Sandy Baum, a Skidmore economist who studied the value of a college degree for the College Board last year.

Baum's research showed that college graduates earn, on average, about $20,000 a year more than those who finished their educations at high school. Add that up over a 40-year working life and the total differential is about $800,000, she figures. But since much of that bonus is earned many years from now, taking away the impact of inflation means that$800,000 in future dollars is worth only about $450,000 in today's dollars.

Then, if you remove the cost of a college degree--about ,$30,000 in tuition and books for students who get no aid and attend public in-state universities--and the money a student could have earned at a job instead of attending school, the real net value in today's dollars is somewhere in the $300,000 range, a number confirmed by other studies.

But, especially these days, that still makes a college degree one of the most lucrative investments a person can make, Baum notes.

Better yet, college graduates can go on to earn advanced degrees, which return even bigger payoffs. The average holder of a bachelor's degree earns about$51,000 a year, Baum calculates. But those who've gone on to earn MBAs, law degrees, or other professional degrees earn about $100,000 a year.

In addition, Baum found that there are plenty of other rewards for a degree. The quality of the jobs college graduates get is far better, for example. College graduates are more likely to get jobs with health insurance. And it is easier for them to find and hold jobs. The unemployment rate for college graduates was just 2.2 percent last year, half the unemployment level of those with only high school diplomas.

There are lots of other nonmonetary benefits as well. College graduates are healthier, contribute more to their communities, and raise kids who are better prepared academically, studies show.

Other researchers have found that the payoff of a degree is especially lucrative for students from low-income families, since the education and degrees give them a chance to break out of low-paying careers.

1.What can be inferred from Para 1 ?

A. The payoff of a college degree is still big enough to match the advertised.

B. It’s more and more difficult to get a college degree.

C. The return of a college degree is less than often quoted.

D. A college degree is worth about one million dollars.

2.Which of the following is closest in meaning to the underlined word “lucrative” in Para.5?

A. attractive                 B. worthless                C. approachable                 D. balanced

3.How can a college graduate increase his or her yearly income according to the passage?

A. By getting jobs with health insurance immediately.

B. By going on for higher degrees.

C. By breaking out of low-paying jobs.

D. By contributing more to his or her community.

4.Which of the following statements can be learned from the text ?

A.  According to Baum's research, high school graduates earn more than those who have college degrees.

B.  College education is enough to ensure you a good life.

C.  Nonmonetary benefits from the degree attract students more than monetary ones.

D. Students from low-income families still think degrees are profitable to change their life.

高三英语阅读理解中等难度题查看答案及解析

The growing interest in ____ history is clearly evident in ____ number of people visiting museums and country houses.

高三英语单项填空简单题查看答案及解析

Lack of exercise is considered a risk factor for cancer. There is considerable evidence that inactivity is connected with increased risk for lung cancer, breast cancer, etc.

In the Aerobics Center Longitudinal Study, more than 32,000 people (25,000 men and 7,000 women) were given a preventive medical examination that included a machine exercise test to measure physical fitness. They were given a physical fitness score, with one being the lowest and five being the highest fitness level. Then these people were followed for an average of 8 years. During this time, 179 men and 44 women died of cancer.

Data from the Aerobics Center Longitudinal Study show people have lower rates of cancer with higher levels of physical fitness. Studies from the Cooper Institute for Aerobics Research in Dallas suggest that men with high fitness levels are less likely to die of cancer.

The Aerobics Center Longitudinal Study also found that fitness level was more important than weight in predicting longevity (长寿). While results showed that fitness and normal weight are the ideal combination, researchers found that men who were fat but performed well in the machine performance had just a slightly increased all-cause death rate, including cancer, compared to the more slim men. The fat, but fit, men particularly lived longer than the slim, but flabby (肌肉松弛的), men.

These statistics called for a warning to the overweight: The first health goal for the overweight should be to become as fit as possible at their current weight.

67. 1.The text mainly talks about________.

A．the effect of exercise on reducing chances of cancer

B．how to lose weight effectively

C．different ways to keep slim

D．fat men live longer than slim ones

68. 2.What’s Paragraph 2 mainly about?

A．The study on the life of the overweight.

B．The study on the relationship between taking exercise and cancer.

C．The study on the ways of losing weight.

D．The study on the effects of machine exercise.

69. 3.Which of the following is NOT true according to Paragraph 4?

A．Fitness levels have more effects than weight on people’s longevity.

B．A man who is fit and has normal weight is most likely to live longer.

C．Slim men are more likely to live longer.

D．Fat people who like exercising are also likely to live longer.

70. 4.The author thinks the most important thing for the overweight is to ______.

A．increase their fitness levels                B．choose to eat vegetables

C．be on a diet                            D．ask for help from doctors

高三英语阅读理解中等难度题查看答案及解析

Scientists have discovered amazing evidence showing how the human body rebuilds _______ while we sleep.

A. us                B. ourselves           C. it                 D. itself

高三英语单项填空中等难度题查看答案及解析

The Apple iPhone’s impact was widely evident (明显的) at the Consumer Electronics Show, as new touch－screen devices could be found everywhere.

The consumer electronics industry came unbuttoned in Las Vegas this week. At the annual Consumer Electronics Show, companies from around the world unveiled many devices boasting (以拥有…而自豪) touch – sensitive technology, rather than traditional push-button controls.

Motorola, Sony, and LG Electronics all showed off touch-screen phones this week. Microsoft Chairman Bill Gates praised and offered a touch-screen computer, the Surface, related to a flat panel TV for a tabletop. Even camera makers, such as Kodak，included touch-screen LCDs in their devices. Touch-screen tech has been in use for years，but the push to develop and weave it into consumer electronics gathered steam with the June introduction of Apple’s iPhone. “The touch-screen industry is really getting hot,” says Jennifer Colegrove, a senior analyst at iSuppli. “Since the iPhone came out, there are a lot of companies that did not have a relationship with touch screens before that decided, ‘OK, I want to make a touch screen, too.’”

The touch－screen tech ecosystem now includes more than 100 companies specializing in everything from smudge-proof (防污的) screens to sensors (传感器) able to detect fingers before they even contact the screen. Sales of leading touch-screen technologies，such as those used in mobile phones and navigation (航行) devices，are expected to rise to $ 4.4 billion in 2012, up from $ 2.4 billion in 2006，according to iSuppli estimates.

1.What did the writer think about the Apple iPhone？

2.What is the meaning of the underlined word “unveiled” in the second paragraph？

3.The touch-screen tech was used in consumer electronics mainly because of _______.

4.What can we learn from the passage?

高三英语阅读理解困难题查看答案及解析

The study， from academics at Harvard， claims __________ the first clear evidence showing that when temperatures go up， school performance goes down．

A. to have produced B. to produce

C. producing D. being produced

高三英语单项填空困难题查看答案及解析

Reading is good for you. There is increasing evidence to show that reading isn’t merely a way of improving literacy and knowledge, but that it might actually be good for one’s mental and physical health, too.

In the age of Twitter and short attention spans, reading novels, which requires intense concentration over a long period of time, could be the antidote(矫正方法).

Neuroscientists Baroness Susan Greenfield says that reading helps to lengthen attention spans in children and improve their ability to think clearly. “Stories have a structure that encourages our brain to think in sequence, to link cause, effect and significance,” she says “It is essential to learn this skill as a small child.”

“In a computer game, you might rescue a princess, but you don’t care about her, you just want to win,” she explains, “But a princess in a book has a past, present and future. You can relate to her. You see the world through her eyes”

According to professor John Stein, Oxford university, reading is far from a passive activity. “Reading exercises the whole brain,” he explains. “ When we get lost in a good book, we are doing more than following a story, Imaging what is happening is as good as activating the brain as doing it. In other words, our brains simulate(模仿) real experiences, and it is just as if we were experiencing them ourselves. This doesn’t happen when we are watching a TV or playing computer games.”

Getting stuck in a good novel appears to be good for one’s mental health. Reading helps one not only fights loneliness, but also forget one’s own problems for a while.

Researchers found that just six minutes of reading could reduce stress levels by more than two-thirds, more than listening to music or going out for a walk. The concentration required to read distracts the mind, easing muscle’s tension and slowing the heart rate. Reading may be good for physical health, too, by preventing brain aging and disease.

1.Which of the following statement is true about playing computer games?

A. It encourages our brains to think clearly

B. It makes people feel lonely

C. It makes the player concentrate on the result instead of the role in it

D. It can help lengthen one’s attention span.

2.According to John Stein, reading _______

A. is simply following a story

B. is a passive activity

C. can active the brain

D. has the same results as watching TV

3.What is the main purpose of this passage?

A. To show how to improve children’s attention spans

B. To encourage people to read

C. To show that Twitter has a negative influence

D. To compare the results of reading and watching TV

4.The last two paragraphs are mainly about

A. the mental and physical benefits of reading

B. ways of getting rid of stress

C. the problems we face in daily life

D. the factors that cause people to feel lonely

5.What would be the best title for the passage?

A. Reading Books Helps Keep Your Healthy

B. The Structure of a Book

C. The Brain Activities While Reading

D. How to Teach Children to Read

高三英语阅读理解困难题查看答案及解析

Students should be able to show what they know. Many folks take this as a self-evident truth. But I think it demands closer examination.

Possessing a skill or piece of knowledge is not the same thing as being able to show it. This is why many smart young people hate school. Understanding, figuring out, and getting a handle on a piece of knowledge is really exciting, but having to prove to somebody else that you understand is a big fat pain in the neck.

Finding proof of student learning is a huge part of the teacher’s job, and whether it is done poorly or not makes all the difference in that teacher’s effectiveness. There is a huge difference between “How do I figure out if this student understands” and “How do I make this student prove to me he gets it.” The first is a valuable approach; the second is the first step on the road toward wasting everybody’s time.

And there’s the problem. If we start with the assumption (假定) that a student who knows must be able to show his knowledge to our satisfaction, we will be traveling down the wrong road. The more we demand that students prove to us that they know the stuff, the more we will design artificial tasks that demand a set of skills and knowledge entirely different from the skills and knowledge we really want to measure.

As a classroom teacher, I have to remember that the burden is on me to find a way to see what my students know; the burden is not on them to put on whatever trained monkey show I design for my own ease and convenience.

It may not be the worst thing ever to say “Students should be able to show what they know.” But I think it’s far more useful to say, "Teachers should be able to discover what students know."

1.What does the underlined phrase in the second paragraph mean?

A. Very dangerous.　　 B. Very annoying.

C. Very difficult.　　 D. Very frequent.

2.According to the third paragraph, a teacher should have the ability to 　　　　 .

A. discover whether his students know

B. avoid wasting the precious time in class

C. apply various approaches while teaching

D. give students the chance to prove themselves

3.What does the author think of the artificial tasks designed to test students’ learning?

A. They should be limited in number.

B. They are a huge burden on teachers.

C. They should mainly focus on effectiveness.

D. They slide away from their original purpose.

4.What is the main idea of the passage?

A. Students should be able to show what they know.

B. There are many ways to find proof of student learning.

C. Teachers should be able to discover what students know.

D. There should be better understanding between teachers and students.

高三英语阅读理解中等难度题查看答案及解析

Can exercise during childhood protect you against memory loss many decades later?Exercise early in life seems to have lifelong benefits for the brain,in rats at least.

“This is an animal study,but it shows that physical activity at a young age is very important—not just for physical development,but for the whole lifelong track of cognitive（认知的）development during ageing,”says Martin Wojtowicz of the University of Toronto,Canada.“In humans,it may delay the appearance of Alzheimer's symptoms（阿茨海默氏症）,possibly to the point of preventing them.”

Wojtowicz’s team divided 80 young male rats into two equal groups,and placed running wheels in the cages of one group for a period of six weeks.Around four months later—when the rats had reached middle age—the team taught all the rats to connect an electric shock with being in a specific.When placed in the box,they froze with fear.

Two weeks later,the team tested the rats in three situations: exactly the same box in the same room,the same box with the room arranged differently,and a completely different box in a different room.

The rats without access to a running wheel when they were young now froze the same percentage of times in each of these situations,suggesting they couldn't remember which one was dangerous.But those that had been able to run in their youth froze 40 to 50 percent less in both changed box settings.

"The results suggest the amount of physical activity when we're young,at least for rats,has influence on brain and cognitive health—in the form of better memories—when we're older,"says Arthur Kramer of Northeastern University in Boston,who has found that,in humans,exercise promotes the growth of new brain cells.

1.The study shows that_____.

A. physical activity is important for physical health

B. using the running wheels is of benefit to the rats’ growth

C. physical activity can prevent human’s Alzheimer's symptoms

D. the more exercise a rat has when young,the better memory it will possess when older

2.How are Paragraph 3 and 4 mainly developed?

A. By analyzing causes.　　 B. By giving an example.

C. By describing the process.　　 D. By showing differences.

3.What does the underlined word "it" in Paragraph 2 refer to?

A. Exercise.　　 B. Development.

C. Benefit.　　 D. Study.

4.What is the author's attitude towards the animal study?

A. Negative.　　 B. Objective.

C. Critical.　　 D. Doubtful.

高三英语阅读理解中等难度题查看答案及解析