When Jason Esterhuizen was 23 in 2011，an accident blinded him．Now，eight years later，special glasses and a device （裝置）inside his brain are allowing him to make out some details of the world around him．
   In 2018，Jason moved from South Africa to California to join in a study that offered the possibility of helping him with his sight．Run by University of California and a company called Second Sight，the study aimed to lest an unusual medical product called Orion．
   There are three important pieces to Orion．One part looks like a pair of glasses holding a camera on I the person's head，which also sends wireless signals．The second part is a tiny computer processing（處理）the video from the camera - that's where the sight comes from．The third part is a tiny device implanted（植入）directly into the patient's brain，which is new and different about Orion．
   For years，Second Sight and other companies have been working on ways to send visual information into the brains of blind people．Most of the efforts have focused on connecting to the retina（視網(wǎng)膜）．By sending electrical signals to the retina，some visual information can be sent to the brain．So far Second Sight has given about 350 people retinal implants．
   But a retinal implant wasn't possible for Jason．That's why Orion's direct connection to the brain was especially interesting to him．Dr．Nader Pouratian，who gave Jason his implant，said，"With the system we're testing now，you don't even need to have eyes for the device to work． "Jason is one of the six trying out the Orion in the world．
   Although Jason still can't see normally，he can tell dark from light．He says he sees Tittle white dots on a black background，like looking up at the stars at night．" "Now I can do things that I couldn't do before．It's making my life much easier．''

（1）What does the underlined words in the first paragraph mean？

C

C

A．ignore
B．understand
C．recognize
D．prove
（2）What is mainly talked about in paragraph 3？

B

B

A．Where our sight comes from．
B．How the product Orion works．
C．How people with glasses see．
D．What differences Orion has．
（3）Why did Mr．Esterhuizen agree to test the Orion？

D

D

A．He was interested in Orion．
B．Orion is equipped for free．
C．He wanted to move to America．
D．Orion helps him recover some sight．
（4）What can we infer from the passage？

C

C

A．Orion is worn by the patient on the head．
B．Orion has been implanted in 350 people．
C．Orion brings simple sight to the blind．
D．Orion isn't fit for patients without retinas．