Researches at Johns Hopkins University's. Applied Physics laboratory ( APL) in Laurel , Maryland have designed a new human-like robot, Its name is Robo Sally. The machine can be controlled from a distance and can he used to do work that is dangerous for human beings.
Roho Sally has two long arms with human-like hands. She can use her fingers to pick up small objects .examine them in detail and do most things that human hands can do Each finger contains a tiny motor capable of squeezing 20 pounds of pinch foree ,.enough to defuse a bomb under the direction of an operator. She sits on a metal base with wheels that let her move around. turn in tight spaces and climb over small objects, .
Mike McLoughlin is the main investigator for the Applied Physics Laboratory's Prosthetics Program. "The purpose of that program is to develop prosthetic arms that have all the capability of your natural arms .and you do all the complex motions that we can do with the natural arm- with the robot. "
It was a difficult job. Mr. McLoughlin says the device had to have many small motors to。 have the ability to do what a human hand does; It also needs to have human-like strength. The thumb was especially difficult because it permits the hand .to hold objects. And everything had. to fit into a space about the size of a human hand.
The next problem .he says .was to figure out how to control the artificial hand. " So we had to figure out how to make the connection between the brain and this arm.
For search-and-rescue duties.Roho Sally will be operated by a human being using a wire- less machine that is far from the robot. The operator will also wear special gloves and glasses. The glasses permit the operator to see the robot's hands .even though they are far away.
Mr. McLoughlin says this kind of robots could be used in what he calls "dull , dirty or dan- gerous" situations where fine human finger movements are required. He says the technology is not ready for everyday application .but he predicts that within five years we will see some won- derful improvements.
小题1:The underlined word " defuse" in Paragraph 2 is closest in meaning to "_________".
A．remove
B．discover
C．equip
D．produce小题2:According to Paragraph 2.which picture is Robo Sally?
小题3:What can we learn ahout the prosthetic arms according to the passage?
A．They are expected to function as well as natural ones.
B．They have many large motors controlled by robots.
C．They have human-like strength to control the robot.
D．They are connected with human brains.小题4:Which of the following is true about Robo Sally according to Mr. McLoughlin?
A . Its operator doesn't need any equipment.
B. It has been Widely used in everyday life in the USA.
C. It can work in situations which are dangerous for humans.
D. It has made much money for the designer.
青岛位于山东半岛南部沿海，胶州湾的出口处，是我国重要的商港和军港，每天进出港口的船只达百艘以上，但每年3—7月蒙蒙的海雾不时笼罩着青岛，给繁华都市中人们的生活、生产带来诸多不便，特别是海上航运交通遇上这种天气，往往给海员们增添无限的烦恼和忧虑，这是无数血的教训留给他们的阴影。当地最严重的海雾造成的灾害发生在1976年4月，青岛胶州湾内连续4天浓雾，在这期间就有3艘货轮，在同一块礁石上触礁，造成搁浅或沉船的严重事故。