1 . Blind people have long desired for brightness, but scientists don’t have the technology. To bring that one step closer to reality, Zhiyong Fan, a materials scientist of the Hong Kong University of Science and Technology, developed a new artificial eye recently. The device, which is about as sensitive to light and has sharper vision and a faster reaction time than a real eyeball, may outperform human eyes.
The human eye owes its wide field of view and clear eyesight to the retina (视网膜) — an area at the back of the eyeball covered in light-detecting cells. The design for a new artificial eye is based on the structure of the human eye and uses a friendly light-sensitive material. At the back of the eyeball, an artificial retina is lined with Nan scale light sensors (纳米级光感器). Those sensors measure light that passes through the lens (晶状体) at the front of the eye. Wires attached to the back of the retina send signals from those sensors to the processor, similar to the way nerve networks connect the eyeball to the brain.
“In the future, we can use this to replace damaged human eyes,” says the lead designer. In theory, this artificial eye could see more clearly than the human eye, because the artificial retina contains about 460 million light sensors per square centimeter while a real retina has about 10 million light-detecting cells per square centimeter. Besides, the artificial eyeball records changes in lighting faster than human eyes can — within about 30 to 40 milliseconds, rather than 40 to 150 milliseconds. Although its 100-degree field of view isn’t as broad as the150 degrees a human eye can take in, the device can see as well as the human eye in poor light.
Hongrui Jiang, an electrical engineer at the University of Wisconsin, though, thinks engineers need a much more practical and efficient way to produce vast series of tiny wires on the back of the artificial eyeball to give it superhuman sight, which is super hard to achieve.
1. Why does Zhiyong Fan develop the artificial eye?| A．To replace people’s real eyeballs. | B．To gain a sharper vision. |
| C．To help the blind regain their eyesight. | D．To help normal eyes perform better. |
| A．The design of the artificial eye. | B．The structure of the human eye. |
| C．The advantages of the artificial eye. | D．The material used for the artificial eye. |
| A．They have the same structure. |
| B．The artificial eye may see more clearly. |
| C．The human eye sees better in weak light. |
| D．The artificial eye takes in a broader view. |
| A．Doubtful. | B．Favorable. | C．Unconcerned. | D．Satisfied. |
1. 阐明写信事由；
2. 征求建议；
3. 表达感谢。
注意：
1·字数80左右；2. 可适当增加细节，以使行文连贯。
Dear Chris,
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Yours sincerely,
Li Hua
3 . A year back I received a full scholarship to attend the University of San Francisco. All of my hard work had paid off. My mom had spent a lot in my attending a private high school, so I made sure to push myself: I volunteered, joined different clubs, and graduated with honors.
I was so excited to start a new life. I had totally packed two weeks and wanted to go to college at once before it was time to leave.
Soon enough, the big day came, but it wasn’t like what I had thought. The first two weeks were the most difficult days of my entire life. Every night I would cry myself to sleep.
I was so homesick (想家) and I didn’t know how to deal with my broken heart. To distract myself, I threw myself into my studies and I applied for a lot of jobs. In any remaining free time, I started forcing myself to the gym. I wanted to keep every part of my day busy so I wouldn’t think how lonely I felt.
Soon after, I began to limit food, and then I became worse. Finally, I went to see a doctor. When the doctor weighed me, I was crazy about the number of my weight. So I continued to lower my goal, and convinced that controlling this number was the solution to my homesickness. But when I was told that I had no choice but to spend time on my studies. I quickly started recovery in my mind.
How could I do? I told myself that school was what I was best at. I decided to get rid of my homesickness and took exercise actively. My first term of college had passed by at last and I had gotten straight A’s. That’s why I want to share my story—to help other students feel less lonely.
1. How was the author during the two weeks before she left for the college?| A．She was as normal as before. |
| B．She couldn’t wait to leave for the college. |
| C．She was afraid to leave her home. |
| D．She didn’t enjoy her mother’s company. |
| A．Her weight. | B．Her diet. |
| C．Her homesickness. | D．Her bad study habit. |
| A．achieve my dream | B．earn money by myself |
| C．improve my studies | D．take my attention away |
| A．To look back at her past middle school life. |
| B．To help girls to lose weight. |
| C．To help lonely college students. |
| D．To increase her own confidence. |
4 . People generally like to pick out the best-looking fruits and vegetables when shopping for produce (农产品), but Canadian supermarket chain Loblaws is attracting customers with badly-shaped and faulty produce at the price of 30% lower than normal-looking one.
A trial run of the ugly food line, named “Naturally Imperfect”, began with only apples and potatoes to choose from. Consumer demand has been so huge that Loblaws is going to introduce more ugly vegetables and fruits like onions and mushrooms.
All the produce that will be sold through Naturally Imperfect would otherwise have been used in juices, sauces, or soups, or have not been harvested at all. The director Dan Branson explained that this program benefited both food producers who would otherwise have to let abnormal produce go to waste, and consumers who could buy fresh produce at low prices. And he was right, given how popular the line has become.
“It really went well beyond our expectation,” Branson said. “I think it really spoke to the fact that Canadians are out there really looking for some options.”
Of course, Canadians know that beauty is more than skin deep, and they also recognize that they can get the same flavor and nutritional benefits in spite of appearances. The positive response to the initial offering of apples and potatoes showed the opportunity to expand the line and offer more options at a greater price to Canadian families.
“If you grow produce in your backyard, there will be a lot of produce that won’t look as pretty as what you will see in a grocery store”, said Branson. “And nature doesn’t grow everything perfectly. I’d like to think if somebody were to take a No Name Naturally Imperfect apple, put it right beside a No.1 apple, close his eyes and eat them, there would be no difference.”
1. Loblaws is different from other supermarkets in that ______.| A．more fruits are offered at lower prices | B．normal-looking produce is forbidden there |
| C．only apples and potatoes are sold every day | D．imperfect produce is sold at lower prices there |
| A．prevents people from wasting their food | B．happens to be a win-win mode |
| C．teaches food producers how to grow | D．enables consumers to eat more fresh produce |
| A．Canadians are used to eating perfect produce. |
| B．Smart consumers know the importance of ugly produce. |
| C．Loblaws intends to improve customers’ quality of life. |
| D．Customers’ support promotes the development of the ugly food line. |
| A．Imperfect fruits are as tasty and nutritious as perfect ones. |
| B．The world is usually full of imperfect things. |
| C．We should eat imperfect apples with our eyes closed. |
| D．The fruits grown by ourselves are more nutritious than those in the store. |
内容包括：1. 写信目的；2. 自身优势。
参考词汇：运动会sports meeting
注意：
1. 写作词数应为80左右;
2. 可适当增加细节，以使行文连贯。
Dear Sir/Madam.
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Yours,
Li Hua
| A．have lived | B．lived | C．living | D．had lived |
With a wide smile on her face, 15-year-old Sirin eagerly rushed to her mom to show off her new painting. But Mom raised her eyebrows with eyes wide open, and spoke impatiently, “No time, baby. Right now I am busy with an important talk. Just wait for some time, OK?”
Holding her oil painting, she frowned (皱眉),and then searched for her dad. “Dad, see what I have done,” Sirin exclaimed cheerfully. Her dad turned around while adjusting his tie, grinned at her, and showed his thumbs up!
Immediately, Sirin replied angrily, “Dad, you haven’t seen it yet.”
He smiled at her saying, “No time, baby. I will see it later.” He just patted her back lovingly, kissed her forehead, and rushed for his office.
She was not a kid to be pleased with simple gesture or smile. She stood there for a few seconds, and then stormed off to her own bedroom. Hot air was blowing from her nostrils (鼻孔) ; her face turned into apple red. She threw the painting on the table, slammed the door and threw herself on her bed.
“Why is everybody so busy?” She recalled thousands of incidents that hurt her in preschool, middle school and even in high school too! She assumed at least her own family members would give some values to her thoughts, but they were no exception. Unconsciously, her eyes were filled with tears.
The knocking sound on the door put a sudden stop to her thought. Her mom was calling her for dinner. Sirin deliberately (故意地) came late to join them. She kept silent and didn’t look at anyone, scratching the table mat with her nail. Her mom was puzzled at the unusual behavior. Suddenly the morning incident came to mind. Softly, she asked, “ Honey, did I do anything wrong? ”
注意：1.所续写短文的词数应为150左右；2.续写部分分为两段，每段的开头语已为你写好。
At this very moment, Sirin could no longer resist her anger.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________When back from school the next day, Sirin was surprised to see her beautifully-decorated paining on the wall.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________| A．1 | B．2 | C．3 | D．4 |
1. 表明自己的立场；
2. 至少两个论点来论证；
3. 总结：其他
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