Question

    A new device is helping those who are blind to see. It does this in a new way by helping them experience the world around them. The technology is called Orion, manufactured by a company called Second Sight. 1. From being able to see absolutely nothing to suddenly seeing little flickers of light, the blind can move around alone, telling where a doorway is and where the sidewalk begins or ends.

2. One is a small device placed in the brain. There is also a video camera on sunglasses and a processing device carried in a person’s clothes. When the user points the camera, a signal goes to the processor and then back to the glasses. The glasses then communicate wirelessly with the device in the brain. The information causes a pattern to develop in the part of the brain called the visual cortex (皮质). 3. And it all happens in seconds.

Jason Esterhuizen is one of just two people in the U.S. testing this technology. He lost his eyesight after a car accident. He never thought he would be able to see light or movement again. But with the movement of a switch, his world suddenly grows brighter. 4.For example, it is easier and safer for him to cross the road because he can look down and just follow the white line that's painted on the road.

Researchers believe that one day this technology could benefit people who have lost their vision because of illnesses like glaucoma (青光眼) or diabetes. 5.

A.It may also help those with poor vision or who were born blind.

B.The new technology generally uses several parts.

C.He is amazed to have the functional vision again.

D.It is meant to help these people regain some independence.

E.He can do everyday activities that he once could not.

F.In this way, users detect movements and shapes of light.

G.It basically performs the functions of what the eye normally does.

Answer

1.D

2.B

3.F

4.E

5.A

【解析】

这是一篇说明文。文章主要介绍了一款新的技术设备，它可以使盲人重获光明。

1.由下一句“从什么都看不见，到突然看到微弱的闪光，盲人可以独自走动，分辨门口在哪里，人行道的起点或终点在哪里。”可知，承接下文，D选项“这意味着能帮助这些人重新获得一些独立。”切题；该选项中的some independence对应下文中的the blind can move around alone等。故选D项。

2.由下两句“一个是放在大脑里的小装置。太阳镜上还有一个摄像机和一个在衣服上携带的处理设备。”可知，承接下文，B选项“这项新技术一般由几个部分组成。”切题；该选项中的several parts对应下文中的a small device，a video camera和a processing device。故选B项。

3.由上文三句话“当用户指向相机时，一个信号进入处理器，然后返回眼镜。然后，眼镜与大脑中的设备进行无线通信。这些信息导致大脑中称为视觉皮层的部分形成一种模式。”可知，此处介绍这种技术设备是如何运转的，承接上文，F选项“通过这种方式，用户可以检测光的运动和形状。”切题；该选项是上文的结果。故选F项。

4.由上一句“但随着一个开关的移动，他的世界突然变得更加光明。”和下一句“比如说，他过马路比较容易，也比较安全，因为他可以向下看，只需顺着马路上画的白线走。”可知，承接上下文，E选项“他能做他以前做不到的日常活动。”切题；该选项中的everyday activities对应下文中的cross the road。故选E项。

5.由上一句“研究人员相信，有一天，这项技术可以帮助那些因青光眼或糖尿病等疾病而丧失视力的人。”可知，承接上文，A选项“它也可以帮助那些视力差或天生失明的人。”切题；该选项中的also help对应上文中的benefit。故选A项。