【题目】Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. essentialB. endangeredC. goingD. performanceE. crises

F. supposedG. consequenceH. materialI. exposedJ. involves

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 1from morning till night, it is hard to slow down. But relaxation is 2for a healthy mind and body.

Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing as is often 3 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 4and ill health.

The amount of stress a person can stand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime5 for managerial responsibilities; others lose heart at the first sign of unusual difficulties. When6to stress, in whatever form, we react both chemically and physically. In fact we make choice between “flight or fight” and in more primitive (远古的) days the choices made the difference between life or death. The 7 we meet today are unlikely to be so extreme, but however little the stress, it 8the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes 9 Since we can’t remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.

【题目】The scientists observed that the more junk food the rats ate, the more they wanted to eat – a behavior very similar to that of rats addicted(上了瘾的) to heroin, a dangerous drug. Johnson said the experiment shows that the brain chemistry of obesity(肥胖) and drug addiction may be quite similar.

In their experiment, Johnson and his team studied the “pleasure center” of rats’ brains. The pleasure center is a complicated network of nerve cells. If the animal exercises or eats, the cells reward the animal by releasing chemicals into the body that make it feel good. And when the body feels good, the animal – or person – will want to do the behavior again.

For the experiment, Johnson fed foods like cheesecake to one group of rats. Food like this is high in calories and fat. Another group of rats got a regular diet. The rats that ate junk food started to eat more and more.

“They’re taking in twice the amount of calories as the control rats,” says Paul Kenny, one of Johnson’s colleagues.

Kenny and Johnson wanted to know what was going on in the brains of these rats. They first designed a way to deliver a small electrical charge to the rats’ brains. This electrical charge would stimulate the pleasure centers to release pleasure-causing chemicals. The rats could control how much stimulation – and how much pleasure – they received by running on a wheel. The more the rat ran, the more pleasure it received.

The rats that had been eating junk food started running more and more. This behavior suggested that the junk-food-eating rats needed more brain stimulation to feel good compared with rats on a normal diet. In other words, their pleasure centers were becoming less sensitive and the junk food didn’t make them feel good unless they ate more and more.

Experiments like this one could help scientists understand how chemicals in the brain contribute to obesity. With that information, they may be able to help people avoid obesity in the first place.

(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)

1The scientists suggested it was actually ___________________ that made the rats feel good.

2How did the scientist know what was happening in the brains of the junk-food-eating rats?

3What was the purpose of the experiment mentioned in the article?

【题目】根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

请将该题答案转涂到答题卡1-5对应位置

We are humans,and we all make mistakes. The mistakes that we make are not usually on purpose,whether it is breaking a vase,or not completing a task. 【1】 This article will provide you with ideas as to what to do once a mistake has been made.

Admit that you make a mistake as soon as you discover it. Delaying it longer will only make you feel worse,or may drive you toward making the wrong decision to try and cover it up.

2】 Do not play the“blame game".Most people are smart enough to realize that this is just a poor attempt to protect yourself. Perhaps you gave a task to another person and it was never completed. But is it really the entire fault of the person you gave the task to or is it partially your fault for not following up? Keep this in mind before placing the blame on someone else.

3 Maybe you broke your mother's favorite vase,or even forgot a friend's birthday. Just an apology can sometimes be viewed as a“quick fix",and apologizing and asking to be forgiven gives the person opportunity to forgive you.

Offer some compensation(补偿)for loss,damage,or injury caused. 【4】 By doing this,it may soften the blow to the person we've disappointed.

Learn from your mistakes. In the case of a job or a task,write a“to-do" list with the deadline before leaving the meeting. As for forgetting a birthday,put the birthday on an electronic calendar for next year.

Do better next time. 【5】We should try to understand what happened and try to make sure that it won't happen again.

A. Take responsibility.

B. Never repeat your mistakes.

C. Apologize and ask for forgiveness.

D. People’s faith in us can reduce quickly.

E. So sometimes it is necessary to write a letter to say sorry.

F. But not everyone knows how to admit making a mistake.

G. Offer to immediately complete the late task or pay for the vase.

【题目】Every time you go to the supermarket you come away with your purchases packed in plastic bags. But wouldn’t it be kinder to the environment if you asked for paper bags instead?

The answer is not as easy as it might seem. Environmentalists say there are drawbacks to using both plastic bags and paper bags.

80 percent of groceries in the US are packed in plastic bags and the numbers are becoming huge. Consumers use between 500 billion and 1 trillion plastic bags per year worldwide.

Some experts believe that all these bags harm the environment. Plastic takes hundreds of years to break down and, as it does so, poisonous materials are released into the water and soil.

Further damage is caused if plastic bags enter the sea. For example, endangered sea turtles cannot tell the bags from jellyfish, their main source of food, and often choke on them.

However, this kind of bag does have its advantages.

Paper bags use more energy and create more waste than plastic bags. Plastic bags require 40 percent less energy to produce and cause 70 percent less air pollution. They also release as much as 94 percent less waste into the water than paper ones do.

But paper bags do break down more quickly than plastic bags. They don’t endanger wildlife, either.

So what should we do? One possible solution would be to use biodegradable plastic bags. “Biodegradable” means that the bags break down naturally just like a piece of banana peel when it is left outside.

But until biodegradable technology improves, it might be easier to pack things you buy in reusable cloth bags.

1Compared to paper bags, plastic bags ______.

A. produce 6 percent more waste

B. can be made biodegradable more easily

C. can be used as a source of food

D. save 40 percent of the energy

2By saying “The answer is not as easy as it might seem,” (in paragraph 2) the writer means _____.

A. biodegradable plastic bags can compete with paper

B. paper bags seem to be kind to environment

C. it’s difficult to say whether plastic or paper bags are better for the environment

3What does the author suggest people use at the present time?

A. Paper bags B. Plastic bags

C. Biodegradable plastic bags. D. Cloth bags.

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