Ball Management

Players should always keep a tennis ball in their hand or pocket during a match. Even the most patient tennis players despise waiting for their opponent to find a ball to serve(发球).

Behavior & Attitude

Even if you’re playing badly, you should not shout or look depressed in a friendly match. Undoubtedly, your attitude affects how you play, so try to have fun and stay positive.

Pace

Do not deliberately slow the game down. Play at the pace of the server and look ready. Servers also should not rush to start each point. You should re-do the point if you serve the ball before the receiver is ready. The receiver is out of luck, however, if he claims he was not ready after making an attempt at returning the serve.

For Spetators(观众)

Cheering

While it is seen as proper etiquette(礼仪）to remain silent during the live play, loud and spirited cheers are welcome after a hard-earned point. The players appreciate the recognition for their efforts and are encouraged to continue playing at a high level when the crowd is actively involved.

Leaving and returning to your seat

During live play it’s expected that all spectators will remain seated until the next break between games. Movements in the stands(看台) can serve as a distraction(分心的事物) to the players and can also block the view of other audience.

Photography

The issue of camera shutter(快门) noise has earned a lot of attention in golf, but luckily for tennis fans it’s much less of a concern on the court. While the noise produced by the camera is not seen as a major issue, flash photography should be avoided during live play.

1.During warm-ups, tennis player ______________.

A. ought to hit a full pace

B. can place their shots anywhere

C. should not practice competitively

D. had better run around the whole court

2.According to the text, during tennis matches, _____________________.

A. players can slow the game down when tired

B. players don’t have to keep a ball in their hand

C. the receiver shouldn’t return the serve if not ready

D. loud cheers are not allowed even after hard-earned points

3.It can be inferred from the last paragraph that ____________________.

A. flash photography is acceptable on the golf court

B. tennis fans can use flash photography during matches

C. the noise from cameras is not permitted in tennis matches

D. tennis matches require a less degree of quiet than golf ones

4.What’s the text mainly about?

A. Some tips for tennis players to win a match.

B. What to do while watching tennis matches.

C. How to behave properly in tennis matches.

D. Rules tennis players must obey in matches.

ScienceDaily (May 28, 2010) --- Researchers at Oregon State University (OSU) have made important progress in work that should lead toward robots that can not only walk and run very well, but use little energy at the same time.
Studies are moving closer to designing robots that could do dangerous work, create prosthetic limbs（假肢）for humans that work much better than in the past, or even help some people who use wheelchairs to get “walking” abilities.
“Researchers have been working toward robot movement for a long time,” said Jonathan Hurst, a professor at OSU. “What we’ve done is to study what behavior is really possible for a robot.”
The movement of humans and other animals is difficult to copy. Using little energy, they can move easily over hard areas, and enjoy balance from muscles（肌肉）. They have different ways to deal with forces, such as holding something hard in place rigidly（牢牢地）, like the act of holding a cup of coffee level during a car ride. In their recent studies, the OSU researchers proved that these two abilities are mutually exclusive（相互排斥的）. Humans deal with this problem by using pairs of muscles. For a robot, the more it’s able to do one of these tasks, the less able it is to do the other.
Presently, robots that can walk and run must be as rigid as possible while walking. But this way uses a lot of energy. The OSU researchers are working toward something that has similar or better performance, but uses far less energy, and is closer to the abilities of animals.
“So there’s no reason why we shouldn’t be able to build robots with good movement ability,” Hurst said. “Clearly this might be useful in highly dangerous situations. But I could also see great improvements possible with prosthetic limbs that work much better than present technology. ”
72. 【小题1】The robots being studied by researchers at OSU ______.

Britain’s seed(种子) bank, the only one in the world aiming to collect all of the planet’s wild plant species, has reached its goal of banking 10 percent by 2010.

The Millennium Seed Bank Project, run by Kew Gardens—one of the oldest botanical(植物的)  gardens—will officially place the 24,200th species on Thursday, a pink, wild banana from China.

More than 50 countries are now on board with Kew's giant task but vast places of the globe, including India and Brazil, still need to join in and donate seeds, director Paul Smith said.                                                                                                                                                            

The seed bank is one of the largest and most diverse(多样的) in the world with more than 1.5 billion seeds. Its goal is to help protect the planet’s bio-diversity during a time of climate change.

The wild banana seed is under threat of extinction(灭绝) in southwest China from agricultural development. It is a vital food source for Asian elephants and important for growing bananas for human eating.

Stored at minus-20 degrees centigrade, so they can last for thousands of years, the seeds await the day that scientists hope never comes—when the species no longer exist in the wild.

It is a race against time, Smith said, because in the last ten years alone, 20 plants held in the bank have already been wiped out in the wild. He estimates that between a third and a quarter will become extinct this century.

"It is pressing and it is happening now. An area, the size of England, is cleared of primary vegetation（植被）every year." Smith said.

Because most of the world's food and medicines come from nature, protecting wild plant species is quite important, scientists say. There are already many other seed banks safeguarding food crops, which only account for 0.6 percent of plant diversity.

For Kew's next goal—to collect a quarter of wild varieties（种类）by 2020—the botanists need 10 million pounds a year, or a further 100 million pounds on top of the 40 million they have already been granted.

1.What’s the final purpose of the Britain’s seed bank?

A．To collect enough money for the project.     B．To safeguard food crops.

C．To protect wild plants from extinction.        D．To help scientists study wild plants.

2.We can learn from the passage that _______.

A．the seeds in the bank can be used now and then all over the world

B．India and Brazil haven’t joined in the Seed Bank Project at present

C．there is only one seed bank in the world at present

D．the wild plants in places like India and China will never die out

3.What does the underlined word “it” in paragraph 7 refer to?

A．The extinction of plant species.

B．The Millennium Seed Bank Project.

C．Britain’s seed bank.

D．Kew Gardens’ next goal.

4.Which of the following isn’t spoken about in the passage?

A．The global partnership of collecting wild plant species.

B．The temperature condition of the wild plant species in the bank.

C．The government’s support for the seed bank project by giving money.

D．Scientists’ concern on the extinct wild plant species.

We all know what it is like to be unable to turn your head because of a cold in the muscles of your neck, or because an unexpected twist has made your neck ache and stiff. Your whole body feels tight. The slightest move makes you jump with pain. Nothing could be worse than a pain in the neck. That is why we use phrase to describe some people who give you the same feeling. We have all met such people.

One is the man who always seems to be clapping his hands—often at the wrong time—during a performance in the theater. He keeps you from hearing the actors.

Even worse are those who can never arrive before the curtain goes up and play begins. They come hurrying down to your row of seats. You are comfortably settled down, with your hat and heavy coat in your lap. You must stand up to let them pass. You are proud of your self-control after they have settled into their seats…Well, what now…Good God, one of them is up again. He forgot to go to the men’s room, and once more you have to stand up, hanging on to your hat and coat to let him pass. Now, that is “a pain in the neck.”

Another, well-known to us all, is the person sitting behind you in the movies. His mouth is full of popcorn; he is chewing loudly, or talking between bites to friends next to him. None of them remain still. Up and down, back and forth, they go for another bag of popcorn, or something to drink.

Then, there is the main sitting next to you at a lunch counter smoking a smelly cigar. He wants you to enjoy it too, and blows smoke across your food into your mouth.

We must not forget the man who comes into a bus or subway car and sits down next to you, just as close as you will let him. You are reading the newspaper and he leans over and stretches his neck so that he can read the paper with you. He may even turn the paper to the next page before you are ready for it.

We also call such a person a “rubberneck”, always putting out his neck to where it does not belong, like neighbors who watch all your visitors. They enjoy invading your privacy. People have a strong dislike for rubbernecks. They hate being spied upon.

1.Where can you find this passage?

A. Medicine dictionaries.  B. A travel guide.

C. Social science books.     D. Students text books.

2.How do you feel when late comers walk back and forth in front of you in a cinema?

A. Disturbed.     B. Ignored.         C. Bored.  D. Relaxed.

3.A “rubberneck” often                 .

A. says bad words behind people

B. quarrels face to face with neighbors

C. bargains the price with sales women

D. asks about other people’s business

4.Which of the follow is “a pain in the neck”?

A. Someone who helps you find your seat in a movie theatre.

B. Someone who smokes in a smoking section on a train.

C. Someone who throws trash out of his car window on the highway.

D. Someone who goes to the doctor for his severe pain on the neck.

If you’re training for a marathon , a proper plan for water intake (摄入) is important. Of course, there’s the risk of dehydration (脱水). But athletes now know they can also get into trouble by drinking too much. Too much water intake can lower levels of sodium (钠) in the blood . The death of a 28-year-old woman following the Boston Marathon caught the attention of many runners and led to new research.

Experts advise long distance runners to replace the liquids they sweat out. Their goal is to try to keep someone from not getting dehydrated by more than 2 percent of their body weight.

One technique for deciding how much water you need is to get the exact numbers. Runners have to weight themselves before and after a run to determine how much water they’ve lost. If their weight drops by more than 2 percent, they have not drunk enough water.

Hyponatremia occurs when runners drink so much water that blood salt levels drop off. A study published last year tested 488 runners who completed the Boston Marathon and found 13 percent of them had dangerously low blood salt levels. The first sign that runners may notice is slightly swelling in the hands. They can’t get their rings off, and then they might feel sick. They may not remember where they are. In fact, most runners get enough salt to get back to normal levels by eating just one meal after a run. Contrary to the old advice that runners should drink as much as they can to prevent dehydration , the new research has shown that the body is a remarkable machine that actually tells you via thirst when you need water .

56. The author of this passage is primarily concerned with            .

 A. the signs and treatment for dehydration

 B. the long distance runners who need help

 C. how to manage water intake during a marathon

 D. a 28-year-old woman who died after a Boston Marathon

57. Why do runners have to weigh themselves before and after a run ?

 A. They can improve their performance in a run.

 B. They can learn how much salt there is in the blood.

 C. They can know the quantity of water they’ve lost during a run.

 D. They can decide what kind of water they should take during a run.

58. What conclusion can we draw from the passage ?

 A. Taking much salt during a run can avoid selling in the body.

 B. Either too much or too little of water intake is harmful.

 C. A rich meal is helpful to our performance in a run.

 D. We should take enough salt during a run.

59．According the passage, which of the following statements is correct ?

 A. Too much water intake→blood sodium levels ↓→dehydration.

 B. Too much water intake→blood salt levels ↓→hyponatremia .

 C. No water intake→blood sodium levels↑→hyponatremia .

 D. No water intake →blood salt levels ↓→hyponatrenmia .