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pattern

25. What can be inferred from Paragraph 4?

A. Milk will be harmful to health. B. More drinks will be available for sale.

C. Food in the grocery store will carry electronic information. D. Milk in the grocery store will stay fresh much longer. 26. Which of the following is mentioned in the text?

A. Nothing can replace the Internet. B. Fridges will know what people need. C. Jacket sleeves can be used as a guide.

D. Cars will be able to drive automatically.(自动地) 27. What is the text mainly about?

A. Food and clothing in 2035. B. Future technology in everyday life. C. Medical treatments of the future. D. The reason for the success of new technology.

C

A new keyboard can tell whether you are its owner. The keyboard records information about the typing pattern and sends it to a computer program. The program then checks to see if the pattern matches the right user. If not, an alarm sounds, and the computer locks the typist out. It locks out anyone else, even if the person knows password. What’s more, this device needs no batteries. It harvests all the energy it needs from the action of your typing. Besides, the keyboard is also self-cleaning and the keys are free of damage from water, oil and dirt.

The keys of the new keyboard are made of the same inexpensive plastic that might be found on any other standard keyboard. But instead of being smooth, the keys have millions of tiny plastic nanowires（纳米线）on their surface area to every key, increasing the effective contact area between the plastics and fingers. This ensures that there’s enough power to run the keyboard as someone types.

Liming Dai, a scientist, did not work on the new keyboard, but he thinks the design

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could be important in getting better performance from a variety of devices. “It could also be applied to a touch screen, for instance,” Dai says. “Then smart phones and notepads could harvest energy from the action of someone typing or drawing.”

“Future work might make the keyboard even more useful” Dai adds. “A later design might build tiny capacitors（电容器）onto the nanowires,” he suggests. Capacitors are little devices that temporarily store electric charges. Those might then power LEDs to light a keyboard in the dark.

Zhonglin Wang is a co-designer of the new keyboard. His team has built a working model of the keyboard. “If a company decides to fund（投资）its production, this keyboard could be in stores in as little as two years,” says Wang. 28. How does the new keyboard tell whether you are its owner?

A. By checking the right user’s passwords. B. By sending alarms to a computer program.

C. By recording information about the typing pattern. D. By matching the typing pattern to the right user. 29. Why are there many nanowires on the surface of the keys?

A. To make the keys beautiful. B. To make the keys smooth. C. To help produce power. D. To improve the speed of typing. 30. What’s Dai’s attitude to the new keyboard?

A. Positive. B. Critical.

C. Doubtful. D. Unconcerned.

31. What is the best title for the text?

A. A New Keyboard Made of Nanowires B. A New Keyboard Powered by Typing C. A New Keyboard Entirely Owned by You D. A New Keyboard’s Future

D

When a leafy plant is under attack ，it doesn’t sit quietly. Back in 1983,two scientists, Jack Schultz and Ian Baldwin ,reported that young maple trees getting bitten by insects send out a particular smell that neighboring plants can get. These chemicals come from the injured parts of the plant and seem to be an alarm. What the plants pump through the air is a mixture of chemicals known as volatile organic

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compounds, VOCs for short.

Scientists have found that all kinds of plants give out VOCs when being attacked .It’s a plant’s way of crying out. But is anyone listening? Apparently (obviously). Because we can watch the neighbours react.

Some plants pump out smelly chemicals to keep insects away. But others do double duty .They pump out perfumes(芳香) designed to attract different insects who are natural enemies to the attackers. Once they arrive, the tables are turned .The attacker who was lunching now becomes lunch.

In study after study, it appears that these chemical conversations help the neighbors .The damage is usually more serious on the first plant , but the neighbors ,relatively speaking ,stay safer because they heard the alarm and knew what to do.

Does this mean that plants talk to each other? Scientists don’t know. Maybe the first plant just made a cry of pain or was sending a message to its own branches, and so, in reality, was talking to itself. Perhaps the neighbors just happened to “overhear”(hear by accident) the cry. So information was exchanged, but it wasn’t a true, intentional back and forth.

Charles Darwin, over 150 years ago, imagined a world far busier, noisier and more intimate(亲密的) than the world we can see and hear. Our senses are weak. There’s a whole lot going on.

32. What does a plant do when it is under attack?

A. It makes noises. B. It gets help from other plants. C. It stands quietly D. It sends out certain chemicals. 33. What does the author mean by “the tables are turned” in paragraph 3? A. The attackers get attacked. B. The insects gather under the table. C. The plants get ready to fight back. D. The perfumes attract natural enemies. 34.Scientists find from their studies that plants can .

A. predict natural disasters B. protect themselves against insects C. talk to one another intentionally D. help their neighbors when necessary 35.what can we infer from the last paragraph?

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A. The world is changing faster than ever. B. People have stronger senses than before C. The world is more complex(复杂) than it seems D. People in Darwin’s time were more imaginative.

第二节（共5小题；每小题2分，满分10分）

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。

Advantages of playing badminton

Playing badminton can be a fantastic sport. 36 . What's more, playing badminton has many health benefits for your entire body.

Build a strong body

You get to run up and down the court. You jump up high and bend down low when playing. Your movement has to be flexible, with good hand-eye coordination（协调）.The movements give your legs good exercise. At the same time, swinging the racket exercises your arms, shoulders, stomach and back. Before you know it, your entire body will benefit from better coordination. 37 .

Have a good heart

Playing badminton can actually lower your blood pressure, and reduce your chances of heart disease. 38 . .Your body will be better defended against enlarged arteries（动脉）that can cause deadly heart attacks. Whether you are suffering from high blood pressure or simply trying it, playing badminton is a great sport.

Enjoy a colorful social life

Gyms often host leagues, tournaments, and parties. 39 .So don't just watch a television program about losing fat. Get out there and socialize in an organized badminton league.

Make a Slim figure

40 . Hundreds of unwanted fat can be burned off with all of the physical movements involved with the sport. Whether you are on the sand at the local beach, or inside a gym ,playing badminton can be an enjoyable weight loss exercise.