A.The restaurant used to be more crowded. |
B.The restaurant is closing now. |
C.The prices of the dishes are lower now. |
1. A stay in the country will be beneficial to his health.
2. Many of his songs drew inspiration from his experience as a farmer.
3. When Helen criticized (批评) me, Chris came to my defense.
4. It gives you a sense of achievement if you actually make it to the end of a very long book.
5. He was very angry with the man’s improper conduct.
6. Advertising and promotion are what this company does best.
7. She would only play a role if she could identify with the character.
8. The competition was extremely tough this year with 350 applicants applying for the five positions.
9. Some flats are being torn down to make room for a bank.
10. The retired man donated most of his savings to the school damaged by the earthquake.
1. [ˈænsestə(r)]
2. [ɪndɪˈvɪdʒuəl]
3. [kənˈfɜːm]
4. [ˈstrætədʒi]
5. [rɪˌspɒnsəˈbɪləti]
6. [ˈɡrædʒuət]
6 . 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. 保护野生动物的重要性;
2. 提出合理建议(至少两点);
3. 发出呼吁。
注意:1. 词数80左右;
2. 可适当增加细节,以使行文连贯。
Protecting the Wild Animals
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________A.Eating in a cafe. | B.Cooking her lunch. | C.Studying for an exam. |