[题目]Swiss researchers said Monday they have developed a wireless camera system to monitor vital signs in premature babies, a move that could replace uncomfortable and highly inaccurate skin sensors (� 题目和参考答案——青夏教育精英家教网—

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【题目】Swiss researchers said Monday they have developed a wireless camera system to monitor vital signs in premature babies, a move that could replace uncomfortable and highly inaccurate skin sensors (传感器) which produce false alarms in up to 90 percent of cases, mainly set off by the baby’s movement.

“This is a cause of discomfort for the babies, because we have to check on them every time,” said Jean-Claude Fauchere, a doctor at University Hospital Zurich’s newborn clinic.

His hospital is preparing to begin tests of a new, contactless system created by researchers at the EPFL polytechnical university in Lausanne and at the Swiss Center for Electronics and Microtechnology.

The system designed in Switzerland should allow premature babies kept warm in incubators (恒温箱) to be medically monitored using highly sensitive cameras that detect the newborn’s pulse by analyzing its skin color, which changes so slightly every time its heart beats.

“Breathing is monitored by measuring movements of its chest and shoulders. At night, infrared (红外线的) cameras take over, and monitoring can be carried out non-stop,” the statement said.

The visual system was designed by CSEM researchers, who chose cameras sensitive enough to detect minute changes in skin color, while the EPFL researchers designed algorithms (运算程序) to process the data in real time.

“We ran an early study on adults, where we looked at a specific part of skin on their foreheads,” EPFL doctoral student Sibylle Fallet said. “With our algorithms we can track this area when the person moves, and use tiny changes in their color to determine the pulse,” she said. “The tests showed that the cameras produced practically the same results as conventional sensors.”

Once the system has been widely tested on premature babies, it could one day replace skin sensors altogether, the schools said.

【1】What is the advantage of the wireless camera system?

A. It is light and painless. B. It is mobile and effective.

C. It is cheap and convenient. D. It is comfortable and accurate.

【2】What is the key for the wireless camera to monitor a premature baby?

A. Its non-stop measurement.

B. Good condition of incubators.

C. Its sensitivity to sense skin color change.

D. The algorithms to process the data in time.

【3】It be inferred from what Sibylle Fallet said that .

A. their early study on adults was successful

B. the system has been used on premature babies

C. the visual system can sense the people’s pulse

D. the wireless cameras will replace conventional sensors

【4】What’s the schools’ attitude towards the visual system?

A. Doubtful. B. Optimistic. C. Unconcerned. D. Uncertain.

【答案】

【1】D

【2】C

【3】A

【4】B

【解析】

本文是一篇说明文，介绍了一种新型用来监测早产儿的无线相机监测系统，这种新系统比传统的传感器更加准确和舒适。

【1】推理判断题。根据第一段a move that could replace uncomfortable and highly inaccurate skin sensors (传感器) which produce false alarms in up to 90 percent of cases, mainly set off by the baby’s movement.可知这种新型无线相机系统可以取代以前的令人不舒服也不准确的传感器，也就是说这种新的系统令人舒服也很准确。故D项正确。

【2】推理判断题。根据第四段using highly sensitive cameras that detect the newborn’s pulse by analyzing its skin color, which changes so slightly every time its heart beats.可知这种新型系统可以使用高度敏感的相机，这种相机可以监测早产儿的皮肤颜色变化。这一特点是这个系统的关键所在。故C项正确。

【3】推理判断题。根据倒数第二段最后一句“The tests showed that the cameras produced practically the same results as conventional sensors.”可知早期研究结果说明新系统测量的数据和传统的感应器效果是一样的。说明这项早期研究是很成功的。故A项正确。

【4】推理判断题。根据文章倒数第二段可知对这种系统的早期研究很成功，而且这种系统比传统系统更加准确更加舒适，未来可能取代现在的的感应器。可知作者对这一系统的态度是乐观的。故B项正确。

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