Running is often tiring and a lot of hard wor...

Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.

But while it’s long been believed that endorphins (脑内啡)—chemicals in the body that cause happiness — are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.

According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.

To test this theory, the scientists turned to mice.

Both mice and humans release high levels of endorphins and endocannabinoids after exercise along with many other chemicals. After exercising on running wheel, the mice seemed happy and relaxed and displayed no signs of anxiety.

But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runner’s change.

“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscle high symptoms seemed to fade you feel after taking exercise,” Patrick Lucas Austin wrote on science blog Lifehacker.

Similar studies are yet to be carried out on humans, but it’s already well known that exercise is a highly effective way to get rid of stress or anxiety.

The UK’s National Health Service even prescribes (开药方) exercise to patients who are suffering from depression.

“Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can cheer you up if you have depression, and it’s especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.

It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is put on our running shoes.

1.What have scientists from German universities recently discovered?

A.The runner’s high can be caused by endocannabinoids.

B.Working out is a highly effective way to treat depression.

C.Endorphins may contribute to one’s high spirits after running.

D.The level of endorphins and endocannabinoids could affect a person’s mood.

2.The scientists gave mice drugs in their experiments with the intention of ________.

A.testing what influences the level of endocannabinoids released

B.identifying what the cause of the runner’s high is

C.observing the specific symptoms of the runner’s high

D.finding what reduces the runner’s high symptoms

3.The underlined word “notion” in Paragraph 7 has the closest meaning to ________.

A.effect B.suggestion C.question D.belief

4.According to the UK’s National Health Service, working out regularly ________.

A.can help ease depression symptoms

B.is the best way to treat depression

C.can help people recover from depression completely

D.can work for those with serious depression effectively

高三英语阅读理解困难题查看答案及解析

Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.

But while it’s long been believed that endorphins (脑内啡）一chemicals in the body that cause happiness 一 are behind the so-called “runner’s high”，a study suggested that there may be more to this phenomenon than we previously knew.

According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素）may actually be responsible for this familiar great feeling.

To test this theory, the scientists turned to mice.

Both mice and humans release high levels of endorphins and endocannabinoids after exercise, along with many other chemicals. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety.

But after being given a drug to block their endorphins the change. However, when their endocannabinoids were block with a different drug, their runner’s high symptoms seemed to fade.

“The long-held notion of endorphins being responsible for the runner's high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.

Similar studies are yet to be carried out on humans, but it’s already well known that exercise is a highly effective way to get rid of stress or anxiety.

The UK's National Health Service even prescribes (开药方)exercise to patients who are suffering from depression.

“Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can boost your mood if you have depression, and it's especially useful for people with mild to moderate (中等的）depression,” it wrote on its website.

It seems like nothing can beat that feeling we get after a good workout, even if we don t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is put on our running shoes.

1.What did scientists from German universities recently discover?

A. Working out is a highly effective way to treat depression.

B. The runner's high could be caused by endocannabinoids.

C. Endorphins may contribute to one's high spirits after running.

D. The level of endorphins and endocannabinoids could affect one's mood.

2.The scientists gave mice drugs in their experiment to　　 .

A. find what reduces the runner's high symptoms

B. see the specific symptoms of the runner's high

C. identify what is responsible for the runner's high

D. test what influences the level of endocannabinoids released

3.The underlined word “notion” in Paragraph 7 has the closest meaning to　　　 .

A. effect　　 B. goal

C. question　　 D. belief

4.According to the UK’s National Health Service, regular workouts　　　　 .

A. are the best way to treat depression

B. can help ease depression symptoms

C. only work for those with serious depression

D. can help people completely recover from depression

高三英语阅读理解中等难度题查看答案及解析

Running is often tiring and a lot of hard work, but nothing 　　　 the feeling you get after finishing a long workout around the track.

A. breaks B. blocks

C. bonds D. beats

高三英语单项填空中等难度题查看答案及解析

Recently a lot of managers complain that their employees don’t work hard and what they care about is only how much money they can get.

How does this happen? I think it is time for them to think about that seriously now.

Shakespeare once said that “some are born great, some achieve greatness, and some have greatness thrust upon them”. So it is with leadership. Some persons are born with the ability of leadership. Some gain that art by watching and studying the actions of those around them. Other persons find themselves forced into special situations which require them to make the best of the resources they never realized they had and events bring out strong leadership. Most of us are never put to such tests. Most of us are not born leaders.

We often hear people say, “He is a great fellow to work for.” We see workers try their best to do things for certain managers. We see them carry out instructions cheerfully and well or even add something to the doing of the job which was unexpected. In other words, they put themselves into the job and give it their “extra effort” which people give only when they feel that they are part of the team, that they are making a contribution to its success, and that their contributions are understood and appreciated by their managers.

However, this is not something which happens naturally or by chance. It is built on one-to-one relationship. It is a reflection of a person’s attitudes toward the job, the manager and the company. Where it exists, it has been developed over a period, as a result of three simple factors: confidence, cooperation and understanding of their manager who understands them, appreciates their efforts and tries to give them all a fair deal.

1.The author quotes Shakespeare's words in order to ________．

A．introduce the topic of the passage

B．stress the importance of good leadership

C．help to describe three different kinds of leaders

D．compare the difference between greatness with leadership

2.According to the author, as a manager, you should ________．

A．understand and appreciate your workers and their contributions

B．make good use of those workers born willing to work hard for you

C．treat different workers in different ways and different attitudes

D．not only control your workers but understand and appreciate them

3.Most people gain the art of leadership because ________．

A．they are born with the ability of it

B．they are always put into some special tests

C．they are much wiser than others

D．they like to watch and study the actions of others

高三英语阅读理解中等难度题查看答案及解析

、The virtues of thrift（节俭）and hard work is vital for everyone, ________ is often the case in any society.

A、as                           B、that                        C、when                     D、where

高三英语单项填空中等难度题查看答案及解析

The virtues of thrift（节俭）and hard work is vital for everyone, 　　　　 __________is often the case in any society.

A、as　　 　　　　　　　　　　 B、that

C、when　 　　　　　　　　 D、where

高三英语单项填空中等难度题查看答案及解析

.——I hear you___in a pub. What’s it like?

——Well, it’s very hard work and I’m always tired, but I don’t mind.

A.are working  B.will work  C.were working  D.will be working

高三英语单项填空中等难度题查看答案及解析

—I hear you 　　　　 in a pub. What’s it like?

—Well, it’s very hard work and I’m always tired, but I don’t mind.

A.are working B.will work

C.were working D.will be working

高三英语单项填空中等难度题查看答案及解析

How often do you sit still and do absolutely nothing? The usual answer these days is“never” or “hardly ever”. As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through life, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body.

Stress is a natural part of everyday life. There is no way to avoid it, since it takes many and varied forms-driving in traffic, problems with personal relationships are all different forms of stress. Stress, in fact, is not the “baddy” it is often reputed to be. A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.

The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first sight of unusual difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make a choice between “fight” or “fright” and in more primitive days the choice made the difference between life and death. The crisis we meet today are unlikely to be so extreme, but however little the stress, it involves the same response. All the energy is shifted to cope with the stress. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress.

Stress in some people produces stomach disorders, while others experience tension headaches. Since we cannot remove stress from our 1ives, We need to find ways to cope with it.

1.People are finding less and less time for relaxing themselves because________.

A. they are working harder than they used to

B. they are often too busy to find the time

C. they are not clear of how to relax by themselves

D. they are suffering from the effects of stress

2.What is implied but not stated in the passage?

A. The art of relaxation can greatly help people bear stress.

B. People in primitive days know certain ways to deal with stress.

C. If one gets into the habit of relaxing every day he can overcome stress easily.

D. Stress can lead to serious health problem if one is exposed to it for too long.

3.The underlined sentence in Paragraph 2 suggests that________.

A. stress is not always a bad thing for people

B. stress has a bad reputation of causing ill health

C. stress is not so terrible as people often believe it to be

D. stress is always harmful to people all the time

4.According to this passage, which of the following statements is true?

A. Relaxation in life only benefits us mentally.

B. Different people can stand different amounts of stress.

C. All the stress can lead to poor performance.

D. Large amounts of stress is important to people's lire.

5.What is the writer's attitude to stress according to the passage?

A. Stress as well as relaxation is essential for a healthy mind and body.

B. Stress should not be rid completely from the life.

C. Stress produces both positive and negative effects on people.

D. People usually work better under stress if they are healthy.

高三英语阅读理解中等难度题查看答案及解析

Rising from ________ to a position of power, Mr．King is still working very hard．

A．nothing               B．everything         C．something             D．anything

高三英语单项填空简单题查看答案及解析