It s illegal for the police to attach a GI〕S unit to your car without your permission,as the US Supreme Court settled in 2012,But if the po?lice are in hot pursuit of a bank robber or other escaping criminals that threaten public safety* a GPS tracker is acceptable. But exactly how can the police GPS track a car that is moving fast?

  The answer to that question comes from StarChase* a new police technology being used by a small but growing number of law enforcement agencies. It allows the police to fire 4. 5-inch gluecovered GPS bulletlike projectiles (发射体) from an air gun fixed in their police cars. If the GPS tracker makes contact with the escaping robber's car,it'll stick no matter how fast the vehicle is going. That way,the police will have a constant read on the car's location and heading. Aside from simply ap?prehending (逮捕) criminals,it's believed that this new technology could help save lives. If the police successfully fire a GPS unit at a speeding criminal,they can pull back from a highrisk chase. Chases can be incredibly dangerous to all involved,in?cluding innocent bystanders and other drivers. Once the GPS bullet connects* there's no need for the chase any longer.

  Now,predictably,a GPS-loaded gun isn't cheap. Police departments need to pay about $ 5,000 per vehicle for the technology,and individual GPS bullets cost as much as $ 250 each. That may sound expensive,but remember: the alternative is often thousands of dollars in property damage,and great human cost in injury and lost life. According to StarCha.se,their GPS bullet system has an apprehension rate of 80% without any report of injury or property damage. If you'd like to learn more about the StarChase system,Popular Mechanics has just published a good article about it. There's also plenty more information available at the company's website.

5. When the GPS bullet sticks to the escaping robber's car,the police can      .

   A. know the car's condition

   B. ensure the robbers safety

   C. play a fair game with the robber

   D. know the car's position and direction

6. The GPS bullets could help save lives mainly because       .

   A. the bullets won't hurt people

   B. they can make the robber's car stop

   C. the police can stop the dangerous chasing

   D. they have more advantages than normal bullets

7. From the text we can learn that GPS bullets       .

   A. are useful for the police

   B. are widely used in America

   C. can control the rising crime rate

   D. can replace the police in the future

8. In which part of a newspaper can we read the text?

   A. Life. B. Nature. C. Fashion. D. Technology.

阅读理解

  For most of us,we thought that Galileo Galilei was the inventor of telescope because this is what our science teachers have told us and^this  is what wv have read in our books.But truth is that we are wrong because even if Galileo was one of the greatest astrono?mers this planet has ever produced,he was not the one who invented the telescope. So who invented the telescope is a question that has been puzzling us.

  The answer to the question on who invented the telescope is Hans Lippershey. He was the one who invented the telescope and his invention has greatly contributed to the world of astronomy and science. The telescope is used not only in discovering the world outside our planet such as the stars*planets and other objects but even in our daily lives.

  Now when we go back to the question on who invented the telescope,this guy named Hans Lippershey was the cause for a big change in our world. He was born in Germany and built his home in the Netherlands. When Italians came up with glass technique that was introduced to the Netherlands,such development has brought new ideas and progress and people then began to try out different ways of creating lenses (镜片) .It was in 1608 that telescopes were invented.

  After the invention,telescopes were then produced in numbers and were spread across Europe and eventually in America and Asia. The early telescopes can only in?crease the size of an object thrice (三倍) its original size. But the present telescopes can view objects that are light years away and can see even tiny objects.

1. Our school teachers have told us that         .

   A. it was Galileo who invented the telescope

   B. Galileo was one of the greatest astronomers

   C. who invented the telescope is still a puzzle to us

   D. Galileo was famous mainly because he invented the telescope

2. From Paragraph 2 we know that the invention of the telescope is         .

   A. frightening   B. useful

   C. casual   D. difficult

3. Who were very important to the invention of the telescope?

   A. The Netherlanders. B. The Germans.

   C. The Italians. D. The French.

4. The last paragraph mainly tells us that         .

   A. many kinds of telescopes have been produced

   B. telescopes have been improved and used worldwide

   C. telescopes are being produced in large numbers worldwide

   D. modern telescopes are much better than early ones

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