Section C
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are .four choices marked A), B) , C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
Passage One
Questions 56 to 60 are based on the following passage.
3D glasses help doctors perform invasive surgery when their hands are obscured from view.
Moviegoers arent the only ones wearing 3D glasses nowadaysdoctors could benefit from them, too, a new study suggests.
In the past, doctors have been skeptical of using 3D technology in their work, preferring to rely on their own experience. But that may change, thanks to improved 3D glasses and even glasses-free systems .Funded by industry sponsors, the study of 50 surgeons using the new technology showed improvements in surgical precision and speed.
While the technology still requires some free-tuning, technology without the need to wear special glasses will increase the popularity of 3D systems in operating rooms, study leader Ulrich Leiner of the Fratmhofer Heinrich Hertz Institute in Berlin said in a statement.
Improvements to screens are driving developments in 3D technology. High-definition screens are already available. The next step is ultra-high definition, with a sixteen fold improvement in resolution, according to study co-author Michael Witte of HHI.
To evaluate whether new 3D technology was ready for hospital applications, researchers invited surgeons from the Klinikum rechts der Isars surgical hospital to test it out. A leading endoscope manufacturer and an international display company funded the study.
The surgeons tested four different systems: 2D, 3D with glasses, 3D without glasses and a mirror-based 3D system. The glasses-free model relied on an eye-tracking camera system that delivered separate images to each eye, creating a 3D effect in the brain.
The images came from endoscopic cameras used in surgery. The doctors practiced a simulated, routine surgical procedure in which they sewed up a wound in a model patients stomach using a needle and thread. Just as in a minimally invasive surgery, their hands were obscured from view and they relied
on the screen to see what they were doing.
The results were astonishing, Hubertus Feuner, of the Klinikum rechts der Isar university hospital in Munich, said in a statement. The winning surgeon performed the procedure in 15 percent less time and with considerably increased precision, Feuner said.
The most surprising thing was that not only young surgeons benefited, but experienced surgeons also, according to the researchers. The winning doctor has worked at the hospital for more than 30 years and has conducted thousands of operations.
The surgeons in the study rated the 3D glasses system the highest, and the glasses-free system as comparable to the 2D one.
Once the technology is widely available, will doctors begin using it. Theres no doubt that 3D will be a commodity in the future. Witte said.
The studys findings will be presented at a congress of the Association of German. Surgeons in Berlin in April. The findings have not been published in a scientific peer-reviewed journal.
56. What can be inferred about 3D glasses from the second paragraph?
A) Doctors usually have a poor eye sight.
B) Moviegoers often wear 3D glasses to watch films.
C) Some doctors are moviegoers.
D) Moviegoers know how to perform surgery.
57. What was the doctors attitude toward 3D technology in the past?
A) Apathetic.
B) Positive.
C) Disappointed.
D) Doubtful.
58. To create a 3D effect in the brain, an eye-tracking camera system
A) enabled each eye to receive separate images
B) separated images for each eye
C) delivered images of each eye through a camera
D) delivered to each glass separate images
59. The benefits that 3D technology may bring to surgeons are
A) less precision and less time
B) improved precision and less time
C) improved precision and more time
D) obscured views
60. What can be inferred from the feedbacks of the surgeons?
A) 3D glasses system has the highest technology.
B) 3D glasses system is no better than 2D one.
C) The glasses-free system is superior to the 2D one.
D) 3D glasses system is more helpful than the glasses-free system.
中国“零售银行”规模将持续激增
“贸易顺差”格局将成常态
深入实施“军民融合”发展战略
网民征集春联送习近平
明星委员莫成“花瓶委员”
中央提出加强“协商民主”
我国鼓励民资参与“养老服务业”发展
家庭影院频道
适时启动“深港通”试点
企业求转型发展“绿色烟花”
春晚“收视率”创新低
中国下调“GDP增长目标”
“任性”和“铁帽子王”让翻译纠结
中国接近“低生育陷阱”应尽快全面放开二孩
“假离婚”夫妇迎来复婚潮
中国将查处“僵尸政府网站”
聚焦“军队反腐”
中国回应奥巴马批“反恐法”
中国经济进入“新常态”
有权有钱人更易“减刑”
“反腐相声”成春晚最大特色
广场舞将有统一“编排动作”
上海自贸区开卖平行进口车
北京3月开征“施工扬尘排污费”
“大气污染防治”征求意见
“事实孤儿”急需国家救助
《立法法》大修明确“税收法定”
今年将推进“反腐败立法”
“非组织政治活动”危害严重
“薪酬改革”将出配套政策
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |