If you feel tired and sick of fat foods, that...

If you feel tired and sick of fat foods, that is ___________ you have to go to the hospital for a medical examination．

A．why            B．what          C．when         D．whether

高三英语单项填空简单题查看答案及解析

If you feel tired and sick of fat foods, that is ___________ you have to go to the hospital for a medical examination．

A．why                   B．what                  C．when                 D．whether

高三英语单项填空中等难度题查看答案及解析

Wanna soften the blow of a hangover?

A hangover refers to the headache and sick feeling that you have the day after drinking too much alcohol. If you are looking for something to nurse your hangover, you will find the following right ideas.

1. ASIAN PEAR JUICE

Have some extra Asian pears at home? Run them through your juicer before your next night out. According to researchers at Australia’s Commonwealth Scientific and Industrial Research Organization, just 7.4 ounces of Asian pear juice is enough to soften the blow of a hangover. The scientists say that the juice interacts with enzymes that break down alcohol, speeding up your metabolism and leaving less surplus alcohol for your body to absorb. There’s just one catch: The juice must be consumed before you drink anything else in order to be effective.

2. MUSIC

Anyone who’s ever suffered through a massive hangover knows that sound is the enemy. But while your roommate’s 9 a.m. tap dancing practice might exacerbate (加剧) your symptoms, music may have the opposite effect. Research has shown that listening to music can provide relief to migraines, which are similar to hangover headaches. As long as the music is pleasant and suits your taste, it should help to drown out the chorus of pain laying in your mind. Head sensitivity isn’t the only symptom music helps with. According to researchers at the University of Edinburgh, listening to your favorite music also eases pain.

3. EGGS

The best way to tackle a hangover with food is to eat while you drink. Chowing down after the damage has already been done may distract you from your turmoil for a short while, but it won’t soothe your physical symptoms. There are a few exceptions: Eggs, for example, have hangover-fighting potential thanks to a special ingredient. The food is packed with cysteine, an amino acid that breaks down the drinking byproduct acetaldehyde (乙醛). So whether you prefer to enjoy brunch out or at home, make sure your meal includes eggs in some form.

1.According to the passage, the author may agree with the following EXCEPT______.

A.Asian pear juice can help soften the blow of a hangover if you drink it before anything else.

B.Your roommate can make you suffer less from a hangover by practising tap dancing at 9.

C.Eggs are said to contain a special ingredient that may soothe the symptoms of a hangover.

D.Enjoying your favorite piece of music is an efficient way to fight the pain of a hangover.

2.The passage is most probably taken from ______.

A.a textbook B.a science fiction

C.a health magazine D.an advertisement

高三英语阅读理解中等难度题查看答案及解析

Once you do it,________ you will feel that it comes easy.

A. by and by                                                              B. feet of clay

C. kill the fatted calf                                                 D. garbage in, garbage out

高三英语单项填空中等难度题查看答案及解析

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)—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

When fat and meat 　　　 from food, the food tastes as if it’s missing something.

A.is removed B.are removed

C.removed D.have removed

高三英语单项填空中等难度题查看答案及解析

Dogs have an understanding of fair play and become angry if they feel that another dog is getting a better deal, a new study has found.

The study looked at how dogs react when a companion is rewarded for the same trick in an unequal way. Friederike Range, a researcher at the University of Vienna in Austria, and her colleagues did a series of experiments with dogs who knew how to respond to the command “give the paw “. The dogs were normally happy to repeatedly give the paw, whether they got a reward or not. But that changed if they saw that another dog was being rewarded with a piece of food, while they received nothing.

“We found that the dogs hesitated significantly longer when obeying the command to give the paw,” the researchers write. The unrewarded dogs eventually stopped cooperating.

Scientists have long known that humans pay close attention to inequity. But researchers always assumed that animals didn’t share the trait. “The argument was that this is a uniquely human phenomenon,” says Frans de Waal, a professor of psychology at Emory University in Atlanta.

That changed in 2003 when he and a colleague did a study on monkeys. The monkeys had to hand a small rock to researchers to get a piece of cucumber in return. They were happy to do this. But if they saw that another monkey was getting a more delicious reward, a grape, for doing the same job, they would throw away the food and rock, and at some point just stopped performing.

In that experiment, the monkeys considered the fairness of two different types of payment. But when Range and her colleagues did a similar study with their trained dogs, testing to see if dogs would become upset if they only got dark bread when other dogs received sausage, they found that as long as the dogs got some kind of food payment, even if it wasn’t the most delicious kind, the animals would play along.

1.How did the dogs in Range’s study react to the order of “giving the paw”?

2. The research by Frans De Waal in 2003 ___________.

3. Some monkeys in the research become angry because they found another monkey _______.

4. Range found that, compared with monkeys, dogs ____________.

5. What is the main idea of the passage?

高三英语阅读理解中等难度题查看答案及解析

阅读下面短文，根据其内容写一篇60词左右的内容概要。

Are you sick of going to bed late and waking up tired? Then grab your hiking boots and a tent. A new study suggests that a couple days of camping in the great outdoors can reset your circadian (昼夜节律的)clock and help you get more sleep.

The circadian clock, more commonly known as the body clock, is an internal system that tells our bodies when it's time to go to sleep and when it's time to wake up. Scientists track this clock by measuring the amount of melatonin(褪黑激素)circulating in a person’s blood at any given time. In a healthy sleeper, melatonin levels rise a few hours before bedtime, stay high through the night, and then settle back down when it's time to wake up.

In our modern society, however, most of us stay up many hours past sunset and would probably sleep in many hours after sunrise if we could. And the trouble is that your melatonin levels may still be high when your alarm clock goes off in the morning, which leads to grogginess(头晕眼花). It may also have other health consequences as well, such as diabetes(糖尿病), overweight problems and heart disease

Professor Kenneth P. Wright of the University of Colorado in the US wanted to see if our body clocks can be reset by a short stay in nature. His team recruited (招收)14 physically active volunteers in their 20s and 30s. Nine went on a weekend camping trip, while the other five stayed home. At the end of the weekend, the researchers reported that in just two days, the campers' body clocks had shifted so that their melatonin levels began to rise more than an hour earlier than they did before they left on the trip. By contrast, the body clocks of the group that stayed home shifted even later over the course of the weekend. ''This tells us we can reset our clocks fast, '' Wright said.

Therefore, if you want to change your sleep patterns you could try to increase your exposure to natural light during the day and decrease the amount of artificial light you see at night.

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

高三英语概要写作中等难度题查看答案及解析