It’s the sort of work that ________ a high le...

It’s the sort of work that _______a high level of concentration.

A. calls for                  B. makes up                 C. lies in                      D. stands for

高三英语单项填空中等难度题查看答案及解析

It’s the sort of work that ________ a high level of concentration.

A．calls for   B．makes up

C．lies in     D．stands for

高三英语单项填空中等难度题查看答案及解析

It’s the sort of work that ________ a high level of concentration.

A. calls for        B. makes up         C. lies in     D. stands for

高三英语单项填空简单题查看答案及解析

Many of us listen to music while we work, thinking that it will help us to concentrate on the task at hand. And in fact, recent research has found that music can have beneficial effects on creativity. When it comes to other areas of performance, however, the impact of background music is more complicated.

The idea that listening to music when working is beneficial to output probably has its roots in the so-called “Mozart effect”. Put simply, this is the finding that spatial rotation performance(空间旋转能力) is increased immediately after listening to the music of Mozart, compared to no sound at all.

How sound affects performance has been the topic of research for over 40 years, and is observed through a phenomenon called the irrelevant sound effect. To study irrelevant sound effect, participants in the research are asked to complete a simple task which requires them to recall a series of numbers or letters in the exact order in which they saw them. The tricky thing is being able to do this while ignoring any background noise.

Two key characteristics of the irrelevant sound effect are required for its observation. First, the task must require the person to use their rehearsal abilities(复述能力), and second, the sound must contain acoustical variation(声学变化). Where the sound does not vary much acoustically, the performance of the task is much closer to that observed in quiet conditions.

The irrelevant sound effect itself comes from attempting to process two sources of ordered information at the same time—one from the task and one from the sound. Unfortunately, only the former is required to successfully perform the　 recall task, and the effort in ensuring that irrelevant order information from the sound is not processed actually hinders(阻碍) this ability.

A similar conflict is also seen when reading while in the presence of lyrical music. In this situation, the two sources of words—from the task and the sound—are in conflict. The cost is poorer performance of the task in the presence of music with lyrics.

What this all means is that whether having music playing in the background helps or hinders performance depends on the task and on the type of music, and only understanding this relationship will help people maximize their productivity levels.

1.“Mozart effect” is mentioned to ________.

A. explain how music can relax people

B. show music can improve performance

C. advise people to listen to Mozart music

D. stress Mozart music gains wide attention

2.It can be inferred that participants in the research ________.

A. have improved their rehearsal ability

B. perform better in the quiet conditions

C. ignore the background noise successfully

D. prefer the music with great sound variation

3.Paragraph 6 is written to ________.

A. support an idea B. make a contrast

C. introduce a topic D. describe a fact

4.What is the best title for the passage?

A. Music shapes your life

B. Music develops your creativity

C. Choose quiet music for your work

D. Does music make you concentrate?

高三英语阅读理解中等难度题查看答案及解析

—Are you through with your high school?

—Well, _____.

A. sort of            B. go ahead       C. why not         D. that's OK

高三英语单项填空中等难度题查看答案及解析

The first time he had a dinner with some high officials, he felt _____ uneasy.

A. a sort of                           B. sort of                     C. of a sort                            D. all sorts of

高三英语单项填空中等难度题查看答案及解析

“All animal products contain much more concentrated levels of pesticides residue (杀虫剂残留) than either vegetables or grains. Red meat, chicken and fish contain no beneficial carbonhydrates (碳水化合物), fiber...

“Fish contain far more heavy metals and industrial pollutants than land animals...

“There is a common misconception that vegetarians have limited food choices. Just the opposite is true. Vegetarians commonly eat a wider variety of foods than most meat eaters.”

―“Vegetarian FAQ”, North American

Vegetarian Society

“The more I got educated about cruel treatment, it really was a no-brainer to become a vegetarian. You know, no one would barbecue their family dog. You know, a pig or a chicken isn’t different. They are just as gentle as a dog or a cat...”

—Public service announcement, Mike Ness

“I’m not a vegetarian because I enjoy eating meat. Meat is nutritious food, and I believe there are ways to eat meat that are in keeping with my environmental and ethical (道德的) values. I don’t make the decision to eat meat lightly. Meat-eating has always been a messy business, shadowed by the shame of killing...

“I have a sincere respect for vegetarians, for they have actually done the work of thinking through the consequences of their eating decisions, something most of the rest of us have not done. My own examination of those consequences has led me to the conclusion that eating a small amount of meat from certain kinds of farms is something I can feel good about.”

―“Animal Welfare: FAQ & Useful

Links”, Michael Pollan

“The centerpiece of a truly healthy diet must be animal foods. That means a large part of meat, seafood, eggs or raw dairy at just about every meal. That is how one recovers from vegetarianism and builds lasting health and strength.”

—“Recovering from Vegetarianism”,

Ron Schmid

1.Which of the following is mentioned in “Vegetarian FAQ”?

A. Fish is better for human health than chicken.

B. Vegetarians are much healthier than meat eaters.

C. There are more kinds of plant foods than animal products.

D. There is more pesticide in vegetables than in animal products.

2.What might Michael Pollan agree with?

A. Vegetarians are thoughtful.

B. Meat-eating should be forbidden.

C. Vegetarians do something unnecessary.

D. Meat-eating is helpful for the environment.

3.What topic is discussed in the text?

A. What are healthy foods?

B. How to get the best nutrition.

C. Reasons to become vegetarians.

D. Should people become vegetarians?

高三英语阅读理解中等难度题查看答案及解析

High levels of chocolate consumption might be associated with a one third reduction in the risk of developing heart disease, suggests a study published online in the British Medical Journal. The findings confirm results of existing studies that generally agree on a potential beneficial link between chocolate consumption and heart health. However, the authors stress that further studies are needed to test whether chocolate actually causes this reduction or if it can be explained by some other unmeasured factor.

The World Health Organization predicts that by 2030, nearly 23 6 million people will die from heart disease. However, lifestyle and dict are key factors in preventing heart disease, says the paper, A number of recent studies have shown that eating chocolate has a positive influence on human health due to its antioxidant and anti-inflammatory properties. This includes reducing blood pressure and improving insulin sensitivity.

However, the evidence about how eating chocolate affects your heart still remains unclear. So, Dr Oscar Franco and colleagues from the University of Cambridge carried out a large scale review of the existing evidence to evaluate the effects of eating chocolate on cardiovascular(心血管)events like heart attack and stroke.

They analyzed the results of seven studies, involving over 100,000 participants with and without existing heart disease, For each study, they compared the group with the highest chocolate consumption against the group with the lowest consumption.

Five studies reported a beneficial link between higher levels of chocolate consumption and the risk of cardiovascular events. They found that the “highest levels of chocolate consumption were associated with a 37% reduction in cardiovascular disease and a 29% reduction in stroke compared with lowest levels.” No significant reduction was found in relation to heart failure.

The authors say the findings need to be interpreted with caution, in particular because commercially available chocolate is very calorific (around 500 calories for every 100 grams)and eating too much of it could lead to weight gain, risk of diabetes and heart disease.

However, they conclude that given the health benefits of dating chocolate, initiatives to reduce the current fat and sugar content in most chocolate products should be explored.

1.Which statement is NOT true according to the passage?

A. There used to be studies about the beneficial link between chocolate consumption and heart health.

B. Millions of people will die from heart disease according to the WHO

C. There are still other factors that may reduce the risk of heart disease.

D. There is clear evidence about how eating chocolate affects your heart.

2.What are the possible causes of heart disease ?

A. Eating chocolate

B. Unhealthy diet

C. Exercising regularly

D. Drinking coffee.

3.What’s the authors’ attitude towards the findings?

A. cautious

B. doubtful

C. disapproving

D. negative

4.What can be inferred from the last paragraph?

A. We should eat less chocolate.

B. Chocolate benefits our health.

C. We should consider the fat and sugar problem.

D. Eating chocolate will lead to fat gain naturally.

高三英语阅读理解中等难度题查看答案及解析

Scientists have always been interested in the high level of organization in ant societies. American researchers have watched ants build life-saving rafts(筏子) to keep afloat during floods. They also have documented how ant colonies choose their next queen — the female whose job is to produce eggs rather than seek food for others.

New technology is helping to improve researchers’ understanding of the insects. But there is still a lot to be learned. Fire ants living in Brazilian forests are perfectly at home in an environment where flooding is common. To save themselves, the insects connect their legs together and create floating rafts. Some ant rafts can be up to 20 centimeters wide.

David Hu, who is a mechanical engineer with the Georgia Institute of Technology, also known as Georgia Tech, says, “If you have 100 ants, which means 600 legs, 99 percent of those legs will be connected to a neighbor. So they’re very, very good at maintaining this network.”

David Hu and other Georgia Tech researchers want to study ants and the secret of their engineering. They freeze ant rafts and then look at them with the help of computed technology, or CT, images. The pictures show that larger ants serve in central positions to which smaller ants hold. The larger ants form pockets of air that keep the insects afloat.

Scientists say small robots or materials that can change shape could be programmed in a similar way, working towards a shared goal.

Researchers at North Carolina State University are also studying ants. They examined how Indian jumping ants choose the leader of the colony when they lose their top female or queen.

1.The duty of the queen ants is to_____.

A. seek food　　 B. keep organized

C. lay eggs　　 D. keep guard

2.The author takes fire ants as an example to tell us _____.

A. how ants seek food perfectly　　 B. How ants save themselves from floods

C. how ants communicate　　 D. How ants connect their legs together

3.Which of the following is true according to the passage?

A. Ants know the way to form a harmonious society.

B. The Georgia Tech researchers first discovered Indian jumping ants.

C. All the worker ants in the colony are physically larger.

D. Small and shaped-changeable things might work just like ants do.

高三英语阅读理解简单题查看答案及解析

Lead poisoning (铅中毒) occurs when lead is present in high levels in the blood of a person. It is one of the most common medical problems found in children. And it’s important to recognize the presence of lead in children’s bodies because lead is very harmful.

Children have the tendency to go around and put things in their mouths like paint peelings (油漆层剥皮). This is one of the main causes of lead poisoning. It has also been found that children born in poor families have higher chances of getting exposed to lead.

Some of the common symptoms of lead poisoning in children are headaches, stomach pains, hair loss, muscle weakness and weight loss, etc.

Lead poisoning can have severe effects and can lead to heart diseases, kidney diseases and neurological (神经系统的) problems. It can also cause mental dullness and a low IQ level. There have been cases where lead poisoning proved to be terminal for children.

It’s difficult to easily recognize whether a child is affected by lead poisoning, as the symptoms of this disease can occur due to some other medical problems. Therefore, children under the age of six should regularly be checked to know the level of lead in their blood through blood tests. It’s possible to completely cure a child with lead poisoning through treatment. Usually the oral medicine chelator (螯合剂) is given to the children. Sometimes, children are given an injection (注射) for reducing the lead level. Children who have very high level of lead in their blood would need treatment for a long period of time and would also be put on a special diet.

Parents have to take certain precautions to lower the chance of lead poisoning in children. Cleaning the house regularly and removing shoes at the door after coming in from outside will prevent the lead particles from entering the house. Children should be put on a healthy diet, containing high proportions (比例) of calcium and iron, such as eggs, milk, fruits, potatoes, etc, which helps to keep the lead levels in control in the children’s bodies.

In short, it’s a must to be cautious and careful and protect your children from the horrible consequences of lead poisoning.

Lead Poisoning in Children

Ⅰ. 1.

* Children’s going around and 2.　　　　　 in their mouths.

* High chances of blood lead.

Ⅱ. Symptoms

*Headaches, stomach pains, hair loss, muscle weakness, and weight loss, etc.

Ⅲ. 3.

* Leading to heart diseases, kidney diseases and neurological problems.

* 4. 　　　　　 in mental dullness and a low IQ level.

Ⅳ. Treatment

* Making children take the chelator or 5.　　　　　 an injection to reduce the lead level.

* Putting children with a very high lead level on 6. 　　　　　 .

Ⅴ. Suggestions / Preventions

* Cleaning the house regularly

* 7.　　　　　 shoes at the door after coming in from the outside.

* Letting children eat healthy food rich in 8. 　　　　　 .

Ⅵ. 9.

* Being cautious and careful to 10. 　　　　　 from lead poisoning.

高三英语其他题中等难度题查看答案及解析