1 . Scientists have shown a new printing process that can turn just about any piece of paper into a waterproof keyboard that you can fold up and put in your pocket.
The technique uses a special coating that's repellent (排斥的) to liquids and dust, which allows multiple circuit (电路) layers to be printed on top of the paper without any dirt between the layers. On the other side of the paper, standard ink printing can then be used to point out where the buttons are, and what they represent. These layers can be printed in any design you want. What's more, no batteries are required to operate the finished keyboard. It's able to be fully powered from the touch of the operator and the mechanical energy that's produced.
"This is the first time a self-powered paper-based electronic device has been shown," says engineer Ramses Martinez, from Purdue University. When the primed parts of the paper get pressed, they're able to send signals over Bluetooth to another device—a laptop, for example. You've then got a lightweight, foldable keyboard that can be taken anywhere and easily wiped clean when needed.
The technology is great. It's good for the environment because the paper can be simply recycled again. These paper devices are cheap to produce as well - less than $0.25 each, according to the researchers. Potential uses include smart packaging, or where temporary input devices are required.
"I expect this technology to help the user interact with food packaging—checking whether the food is safe to be consumed, or allowing users to sign the package that arrives at home by dragging their fingers over the box to properly identify themselves as the owner of the package," says Martinez. "Additionally, our group showed that simple paper sheets from a notebook can be transformed into music player interfaces (界面) for users to choose songs and play them."
1. What can we learn about the keyboard according to the text?| A．It consists of several layers of paper. |
| B．It's printed on both sides of the paper. |
| C．It's smaller than an ordinary keyboard. |
| D．It has its buttons hidden behind the layers. |
| A．By giving signals via Bluetooth. |
| B．By being attached to other devices. |
| C．By getting any part of the paper pressed. |
| D．By using the power produced by other devices. |
| A．Portable and beautiful. |
| B．Convenient and fashionable. |
| C．Eco-friendly and economical. |
| D．High-powered and permanent. |
| A．The technology makes food packaging easy. |
| B．The technology has been used in food industry. |
| C．The technology can be employed in more fields. |
| D．The technology will improve the quality of food. |
2 . The phrase “Keeping up with the Joneses" has been an American saying for decades, likely coming from a picture book, which describes a family in a constant straggle to achieve the social status of their neighbors, the Joneses. While the picture book is long gone, the saying remains and the phenomenon still exists.
The Joneses are everywhere, living a successful and wealthy life. Their skin is beautiful, their body is perfect, and they have much money. They have the good house, pets, smart children and they seem never to struggle. For people, the Joneses take the form of a particular family and they regard the Joneses as a description of perfection.
We tell ourselves constantly if we could become someone just like our neighbors, we would be happy. However, as we compare ourselves with others, we notice the deep pain that these comparisons bring about. Well then, what do we do about the Joneses? We should remind ourselves nobody is perfect and perfection is an illusion. So we should train our brains to question or change the distorted (歪曲的) ways of thinking, and see the big picture.
While the methods above do help us see others more clearly, the methods alone won't solve the problem. Moving away from comparison means turning inward to address our insecurities and inviting more mercy. From there, we can honestly begin to notice what we want for ourselves and work to reach those goals. That, finally, is the road to a peaceful mind.
As we move away from the comparative model of judging worth and stop seeing others, success as a treat, we can even feel glad that the Joneses have meaningful careers. We can hope their marriage is happy, their bank account is full, and that their children are successful. We can hope good things happen to the Joneses.
1. What does Paragraph 2 mainly talk about?| A．How "the Joneses" live. |
| B．What your neighbors have. |
| C．Why "the Joneses" are perfect. |
| D．How your neighbors affect you. |
| A．Being grateful to life. | B．Understanding others. |
| C．Gaining peace of mind. | D．Being close to perfection. |
| A．Follow our neighbors. | B．Avoid perfect people. |
| C．Show our love to other people. | D．Treat others with a normal attitude. |
| A．How Do We Become Perfect? |
| B．Should We Keep up with the Joneses? |
| C．How Should We Get on with Neighbors? |
| D．Does the Phenomenon of Comparison Exist? |
3 . If you're feeling hungry, what’s the easiest way to satisfy your Hunger? Many of Us will reach for a takeaway menu and order some delicious-but possibly unhealthy -food. And our increasingly hectic lives add to our need to buy ready-made food because we always have no time or energy to cook on our own.
Eating options are endless, and new technology means we can feed our desire at the push of a button. Takeaway delivery apps make ordering food quick and convenient. It's estimated that in the UK alone, people eat three million takeaway meals a day, and the three biggest delivery apps together offer a choice of 100 foods from 60,000 restaurants. Amelia Brophy, head of UK Data Products at YouGov, told the BBC that its research suggests that the frequency of takeaways ordered is expected to increase in the future.
It’s no wonder we are tempted to skip the grocery shopping, bypass the kitchen, and tuck into something that someone else has prepared. But ordering a pizza, a spicy curry or a box of noodles, can come at a price both financially and to our health. Eating too much processed and unhealthy fast food has some effect on obesity and the risk of developing certain diseases. A few years ago, the BBC Good Food Nation Survey found most people eating fast food on average two days per week gradually putting on weight.
Of course, reducing salt, sugar and fat is one way to make takeaway food healthier, as well as offering smaller portion sizes. But the best advice for you is to find a recipe book and try making your own nutritious meals. And if you haven't got time, try ordering a healthier alternative from the menu.
1. What does the underlined word “hectic” in Paragraph 1 probably mean?| A．Abnormal. | B．Busy. | C．Irregular. | D．Social. |
| A．The various food. |
| B．Their delicious taste. |
| C．Their relatively low price. |
| D．The advanced technology. |
| A．Takeaway foods may do harm to health. |
| B．Takeaway foods make people light-hearted. |
| C．Pizza and noodles are the most popular takeaway foods. |
| D．The UK has the largest number of people ordering takeaway foods. |
| A．To give readers some suggestions. |
| B．To offer readers an alternative menu. |
| C．To find the reason for ordering takeaway foods. |
| D．To choose the best way of making nutritious meals. |
4 . Where to Shop in London
James Smith & Sons
Have you ever seen a nobleman with a fine walking stick or a fashionable woman with an umbrella that's definitely not one of those five-dollar bargains from New York City street? Well； you could be that person too. But you have to go to Jame Smith & Sons. They specialize in all kinds of high-quality walking sticks and umbrellas.
Harvie & Hudson
UK and Italy are two leading countries when it comes to clothing for men. And you know that it’ll cost you your wages of several months to buy a suit of clothes there. But Harvie & Hudson is fairly accessible, especially for the kind of quality you get. A worthy alternative! You can’t go wrong with two sport jackets for around £200. That's a good deal.
Hatchards
Hatchards in Piccadilly, which opened in 1797, can claim to be the oldest bookstore in the UK with around 100,000 books, and has a special section for signed first editions, and children's books. Beyond that, it offers personalized book subscription services for a very reasonable sum — you'll just need to pay additional postage for shipment to America.
The Whisky Exchange
For those who love whisky and brandy, this is the best choice, since ifs one of the city's important liquor stores. It’s possible to order bottles to be shipped to America. You're bound to find something you'll never see at home. Ifs like the Willy Wonka factory for Scotch drinkers and collectors.
1. Which of the following are provided in James Smith & Sons?| A．Bargains. |
| B．Cheap umbrellas. |
| C．Fashionable clothes. |
| D．Excellent walking sticks. |
| A．Hard to choose. |
| B．Good and cheap. |
| C．Designed for businessmen. |
| D．Covering all modern kinds. |
| A．The natives. |
| B．British visitors. |
| C．Foreign students. |
| D．American travelers. |
5 . A high level of methane (甲烷) gas on Mars was found by NASA's Mars exploration vehicle. The discovery is exciting because the presence of methane gas could support the case for life on Mars:
NASA's Curiosity vehicle recently recorded the largest level of methane ever measured during its seven-year Mars mission.
Methane has no color or smell. A special instrument on Curiosity's Mars Science Laboratory recorded the increased gas level. Besides methane, the instrument can record levels of water and carbon dioxide.
Nearly all the methane gas found in earth's atmosphere is produced by biological activity. It usually comes from animal and plant life. But it can also be formed by geological processes, such as interactions between rocks and water.
It was not the first time Curiosity has found methane gas in the Martian atmosphere.. About a year ago, NASA announced that Curiosity had discovered sharp seasonal increases in the gas. This time, NASA said the measured methane gas level was clearly larger than any others observed in the past. NASA officials even temporarily stopped Curiosity's other activities to investigate further.
However, Curiosity's team carried out a follow-up methane experiment that showed a sharp drop in levels of the gas. The rise and fall of the methane gas levels left NASA scientists with more questions than answers. The scientists are continuing to study possible causes for the sudden increase.
Curiosity does not have instruments that can exactly identify whether the source of the methane is biological or geological. One leading theory is that methane is being released from underground areas created by possible life forms that disappeared long ago. Even though Mars has no active volcanoes, scientists believe it is also possible that methane is being produced by reactions involving carbon materials and water.
1. Why is the discovery of methane gas on Mars exciting?| A．It was first found on Mars. | B．It's evidence of life existence. |
| C．It can be used in further studies. | D．It proves the existence of water. |
| A．It is colorless and smelly. |
| B．It is mainly created by rocks and water. |
| C．It is as important as water and carbon dioxide. |
| D．It is produced by biological or geological, activity. |
| A．Discovering methane gas several times on Mars. |
| B．The failure of the follow-up methane experiment. |
| C．Having no exact instruments to identify methane gas. |
| D．Sharp changes in the amount of methane gas on Mars. |
| A．Explorations on Mars | B．Methane Level on Mars |
| C．Methane Mystery on Mars | D．The Sources of Methane on Mars |
6 . Do you want to really impress your friend with a birthday gift? How about flying a drone (无人机) made of chocolate?
It can be done, and it was done by a team of three Duke University students, with help from a chocolate maker called Chocolove. About a year ago, mechanical engineering student Anuj Thakkar and his friends were talking over coffee. “Wouldn't it be cool if we had eatable drones?" they wondered.
Over the summer, that idea began to take shape. "We tried cheese. We tried bread. Chocolate was what we settled on." said Thakkar. Chocolate is moldable, making the design process a little easier. Thakkar, Carlo Lindner and Ben Succop started designing. Eventually, to make their friend Kristine Stanner smile, they managed to build a fleet of drones out of chocolate. On Stanner's birthday, they flew a drone to her. She ate a piece of the one-of-a-kind drone at once.
However, they worked really hard for it. The summer in Durham, North Carolina, is very hot, and it's not a great time to work with chocolate. "The first drone — chocolate was falling from the sky," Thakkar said. “It was flowing in drops.” Hearing the news, Chocolove enthusiastically provided his high-quality dark chocolate for them. But the high-quality chocolate is more fragile than the cheap one, so the team had to fix it again. They put the plastic on the airframe at first and then put sweet vermicelli (细面条) to give the airframe more flexibility. The drone crashed a lot, but it always held. And it had a tendency to tear, which may be why real planes aren't made of chocolate.
Thakkar said, “I got tired of chocolate in the first day of designing, but I like to make strange gifts for my friends."
1. What does the underlined word “moldable" in paragraph 3 probably mean?| A．Delicious. | B．Flexible. | C．Soft. | D．Solid. |
| A．Planning a birthday surprise. | B．Advising some useful guidance. |
| C．Offering higher-quality materials. | D．Introducing some guests to them. |
| A．The lack of chocolate. | B．The change of the weather. |
| C．Their unprofessional skills. | D．The unstability of the airframe. |
| A．Creative. | B．Humorous. | C．Ambitious. | D．Strict. |
