题目内容
WASHINGTON—It’s a great achievement that inspires notions of robots with consciousness and independent minds.
When people or animals get hurt, they can usually compensate for minor injuries and keep limping along, but for robots, even slight damage can make them stumble and fall.However, a recently made robot has demonstrated a novel ability: it can heal its own damage.
The new robot, which looks like a splay-legged, four-footed starfish can sense injury to itself and adapt.That ability sets the new robot apart from earlier machines.Because the robot can recover from unfamiliar places.“There is a need for planetary robotic rovers to be able to fix things on their own,” says Josh Bongard, a professor in the University of Vermont, who is one of the device’s creators.“Robots on other planets must be able to continue their mission without human help if they are damaged and cannot communicate their problem back to Earth.”
A typical robot functions according to a computer program, but the new robot works differently.First, sensors in its four legs observe the robot’s movements and signals to its built-in computer.From the formation it collects, the robot creates its own programs that allow it to adapt to different situations.For example, when the researchers shortened one of the robot’s legs, the smart machine simply adjusted its way of walking—it used three legs instead of four.
The researchers are looking for other places to put the resilient robot to work.One pellicle spot is the ocean floor.That dark and dangerous undersea terrain might be a good choice for a robot the scientists call the Starfish.“We never officially named the robot, but we usually refer to it as the Starfish, even though a real starfish has five rather than four legs,” says Bongard.“Also, a real starfish is much better than our robot at recovering from injury, because it can actually grow its legs again.”Scientists have created robots that help humans in many ways: by exploring space, fighting fires, and even performing surgery.
1.The newly designed robot distinguishes itself from the former ones because it .
A.can communicate with people on the earth about their problems
B.works according to a certain computer program
C.can find its problems and solve them automatically
D.can explore unfamiliar places
2.An example is given in the fourth paragraph in order to explain that the robot .
A.is used to create new programs
B.has typical robot functions
C.has sensors to observe its movements
D.can gather information and adapt to new conditions
3.The underlined word“resilient”in the last paragraph means the robot is .
A.creative B.newly made
C.able to recover D.informative
4.Which of the following is TURE about the robot “Starfish”?
A.It was spoken highly of by people for its special ability
B.It will stumble and fall if damaged.
C.It can grow its legs again once they are broken.
D.It has started to work on the ocean floor.
5.What might be the best title of the passage?
A.How does the Starfish Robot work
B.Do-It-Yourself Robot Repair
C.Robots Designed to Work on Other Planets
D.New Robot Helping Us in Many Ways
CDCAB
Shirley Allen loved to sing and play the piano. She studied music in college and her 36 was to become a concert pianist or blues singer.
Everything 37 when she was 20 years old. She became sick with what doctors 38 was typhoid fever(伤寒)and she almost died. Doctors gave her medicine to help her get well, but the medicine 39 her to become 40 deaf. She could no longer hear the music which she had always 41.
Shirley would never give up playing the piano, 42 she did decide to change 43 . She transferred to Gallaudet University and studied English. In 1964 Shirley graduated from Gallaudet and looked for 44 . She wanted to be 45 and work full-time.
For three years, Shirley worked as a clerk in Washington, D.C. 46 , in 1967 she was asked to work at Gallaudet University as a dorm supervisor (宿舍监管员). Shirley supervised young women who 47 in the university during the school year. She also taught English. Somehow she found time to 48 graduate school at Howard University in Washington, D.C. In 1972, Shirley received her M.A. degree.
Always 49 a new challenge, in 1973 Shirley became a professor at National Technical Institute for the Deaf (NTID),which 50 deaf and hard-of-hearing students technical and professional training.
This 51 woman became the first black deaf female in the world to receive her Ph.D. She made 52 in 1992, 53 she received the highest degree in education from the University of Rochester in New York.
Dr. Shirley Jeanne Allen has traveled many roads and 54 many rainbows searching for her dream. With courage and 55, she never gave up.
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Events Calendar
TUESDAY
Landscape Pests (害虫)
Learn to identify, control and prevent seasonal landscape-disease and landscape-pest problems at the workshop, 3:30 pm. – 5 pm. Tuesday at the US National Arboretum, 3501 New York Ave NE, Washington. $15; registration required.
202-245-4521 or www.usna.usda.gov.
THROUGH AUGUST 3
Horticultural(园艺的) Art
Watercolors, pen-and-ink drawings and colored-pencil pieces by the Brookside Gardens School of Botanical (植物学的) Art and Illustration will be on display at the exhibit Botanic 2007: The Art and Science of Plants at Brookside Gardens Visitors Center, 1800 Glenallan Ave, Wheaton, through Aug. 3. Free. 301-962-1400 or www.brooksidegardens.org.
THROUGH SEPTEMBER 9
Botanical Art
Visit Patterns in Nature, an exhibit by Amy Lamb featuring photographs of flowers, leaves and other botanical life, at the US Botanic Garden Conservatory (温室),West Orangerie, 100 Maryland Ave SW, Washington, through Sept. 9. The conservatory is open 10 am. – 5 pm. Daily. Free. 202-225-8333.
THROUGH OCTOBER 8
Botanic Garden Exhibit
Celebrating America’s Public Gardens is on view through Oct. 8 at the US Botanic Garden, 100 Maryland Ave SW, Washington. The exhibit, on the Conservatory Terrace and in the National Garden, features displays of 20 public botanic gardens across the country. Hours are 10 am. – 5 pm. Daily. Free. 202-200-8956.
1.If you want to record your name for an event in advance, you may call _____.
A.202-225-8333 |
B.202-245-4521 |
C.301-962-1400 |
D.202-200-8956 |
2. If you go to Botanic Garden Exhibit, you _____.
A.can enjoy drawings and coloured-pencil pieces |
B.can learn how to kill pests living on the plants |
C.can find displays of 20 botanic gardens across the country |
D.will enjoy the photographs of flowers and leaves |
3. From the advertisement, we learn _____.
A.the first event is about growing healthy plants |
B.all of the events are free of charge |
C.there is no time limit to all the events |
D.you can find the information of all the events either by phone or by e-mail |