1 . In recent years, Boston Dynamics has become known for two things. One, creating robots whose movements mimic (模仿) humans and animals. Many find their accuracy surprising and concerning. The second reason is posting mysterious videos of these robots online without warning. The videos quickly go popular and spread a mixture of excitement and terror over the rapid rise of self-operating machines.

The company has made four-legged robots in recent years, with names like Spot, Wildcat and BigDog. These robots can do tasks such as open doors, carry heavy loads and run nearly 20 miles per hour. The company's most popular product appears to be Atlas, the robotic athlete. It calls Atlas "the world's most dynamic humanlike robot."

The robot is guided by 3-D vision. It also uses LiDAR, short for Light Detection And Ranging, a sensor (传感器) that uses a laser (激光) to measure the distance between objects. With this technology, the small robot can pull nearly 25 pounds. The company says Atlas can also handle objects in its environment, cross rough land, keep its balance when pushed and get back up when knocked down.

Three years ago, Atlas was recorded clumsily walking through the snow at a slow speed. Curiosity about Atlas increased last year when Boston Dynamics posted a video clip on YouTube. In it, the previously awkward robot goes for a jog in a grassy area. The video seemed to surprise many viewers, including the newspaper called the Daily Mail. The newspaper was reporting on Atlas's physical accomplishment at the time.

The paper wrote, "If you thought you'd be able to run away from the terrifying new robots, bad news."

1. What is the main idea of the passage?

A．Robots mimicking humans and animals go popular.

B．Boston Dynamic is likely to create more new robots.

C．Humanlike robots are developing at a surprising speed.

D．A new video of the latest robots make people amused.

2. What does the underlined word “awkward” in paragraph 4 mean?

A．Dangerous.	B．Unskillful.
C．Graceful.	D．Convenient.

3. What can we infer from the last paragraph?

A．It’s bad that we can run away from the new robots.

B．People are happy about the improvements to new robots.

C．Human’s power over machines and robots has come to an end.

D．Improvements to robots raised concern among us human.

4. Where does the text probably come from?

A．A science magazine.	B．An advertisement.
C．Children’s literature.	D．A fantasy novel.