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By generating the proper brainwaves-picked up by a cap with electrodes(电极)that sense the signals
and reflect a person's instructions-scientists can instruct a humanoid robot to move to specific locations
and pick up certain objects.
The commands are limited to moving forward, picking up one of two objects and bringing it to one of
two locations.The researchers have achieved 94 percent accuracy between the thought commands and
the robot's movements.
"This is really a proofofconcept demonstration, "said Rajesh Rao, a researcher from the University of
Washington who leads the project."It suggests that one day we might be able to use semiautonomous
robots for such jobs as helping disabled people or performing routine tasks in a person's home."
The person wearing the electrode cap watches the robot's movement on a computer screen through
two cameras installed on and above the robot.
When the robot's cameras see the objects that are to be picked up they pass on the information to the
user's computer screen.Each object lights up randomly on the computer screen.When a person wants
something to be picked up and it happens to light up, the brain registers surprise and sends this brain
activity to the computer and then to the robot as the choice object.The robot then proceeds to pick up
the object.
A similar program is used to decide where the robot will go.
"One of the important things about this demonstration is that we're using a 'noisy' brain signal to
control the robot, "Rao said."That means we can only obtain brain signals indirectly from sensors on the
surface of the head, and not where they are generated deep in the brain.As a result, the user can only
generate highlevel commands such as indication which object to pick up or which location to go to, and
the robot needs to be autonomous enough to be able to execute such commands."
In the future, the researchers hope to make the robot more adaptive to the environment by having
them carry out more complex commands.
1. What is special about the robot introduced in the passage?
A. It is controlled by human thoughts.
B. It can be made humanoid.
C. It can be used to help the disabled.
D. It has high intelligence itself.
2. Which of the following is TRUE about the robot?
A. It can move forward and backward and pick up two objects at the same time.
B. It can move forward, pick up both objects and bring them to either location.
C. It can only move forward, pick up one object and put it in one location.
D. It can read all human thoughts and do as instructed.
3. What Rao says in the eighth paragraph suggests that the new robot________.
A. is still at its early stage of development
B. will be widely used in our daily routines soon
C. is autonomous enough to complete complex commands
D. is only limited to doing routine work at home
4. The sixth paragraph mainly describes________.
A. how the robot controls a person's action
B. how the robot picks up the right object
C. how the person controls the robot
D. how the robot finds out where to go
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By generating the proper brainwaves-picked up by a cap with electrodes(电极)that
sense the signals and reflect a person's instructions-scientists can instruct a humanoid
robot to move to specific locations and pick up certain objects.
The commands are limited to moving forward, picking up one of two objects and
bringing it to one of two locations.The researchers have achieved 94 percent accuracy
between the thought commands and the robot's movements.
"This is really a proofofconcept demonstration,"said Rajesh Rao,a researcher from
the University of Washington who leads the project."It suggests that one day we might
be able to use semiautonomous robots for such jobs as helping disabled people or
performing routine tasks in a person's home."
The person wearing the electrode cap watches the robot's movement on a computer
screen through two cameras installed on and above the robot.
When the robot's cameras see the objects that are to be picked up they pass on the
information to the user's computer screen.Each object lights up randomly on the computer
screen.When a person wants something to be picked up and it happens to light up,the brain
registers surprise and sends this brain activity to the computer and then to the robot as the
choice object.The robot then proceeds to pick up the object.
A similar program is used to decide where the robot will go.
"One of the important things about this demonstration is that we're using a 'noisy' brain
signal to control the robot,"Rao said."That means we can only obtain brain signals indirectly
from sensors on the surface of the head,and not where they are generated deep in the brain.
As a result,the user can only generate highlevel commands such as indication which object to
pick up or which location to go to,and the robot needs to be autonomous enough to be able
to execute such commands."
In the future,the researchers hope to make the robot more adaptive to the environment by
having them carry out more complex commands.
B．It can be made humanoid.
C．It can be used to help the disabled.
D．It has high intelligence itself.
B．It can move forward, pick up both objects and bring them to either location.
C．It can only move forward,pick up one object and put it in one location.
D．It can read all human thoughts and do as instructed.
B．will be widely used in our daily routines soon
C．is autonomous enough to complete complex commands
D．is only limited to doing routine work at home
B．how the robot picks up the right object
C．how the person controls the robot
D．how the robot finds out where to go
In the US Mother's Day is a holiday on the second Sunday in May. It is a day when children 1 their mothers cards, presents and 2 .
One of the 3 ways to celebrate (庆祝) Mother's Day is to give your 4 the day off. Let her have a good rest 5 other members of the family do the 6 .
Many families 7 Mother's Day with breakfast in bed. Usually Dad and the 8 will let Mom sleep late as they go into the 9 and get ready for her favorite meal. A Mother's Day 10 can be made of anything your Mom likes.
After the food is cooked, keep everything nicely on a plate. Don't 11 to put the bottle with only one flower. With 12 here, the children can 13 the nicest flower from the garden outside. When everything is 14 , carefully carry the plate and Mom's 15 books or newspaper up to her bedroom. Cards and small presents 16 the children can be put on the plate 17 it is given to Mom in bed.
Many families take Mom 18 to her favorite restaurant (饭店) 19 a meal. It is a good way to let your Mom rest and let her see 20 a wonderful family she has.
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阅读下面的短文，从A、B、C、D四个选项中选出最佳选项。
The United States is full of cars．But there are still many families 1 cars，while some families have two or more．However，cars are used for 2 joy．They are a necessary part of 3 ．
Cars are used for 4 ．They are driven to offices and factories by workers who have 5 to get to their jobs．When 6 are sent to different parts of the city，they have to drive in order to 7 their goods．Farmers shave to drive into cities in order to buy things．
Very often small children 8 be driven to school．In some cities school buses are used only 9 children who live more than a more than a mile 10 school．When children are too young to walk 11 far，their 12 take turns to drive them to school．One mother dives on Monday，taking her own children and the 13 as well．Another mother drives on Tuesday，another on Wednesday 14 ．So people say they 15 a carpool（合伙组成车队）．Men also form carpools-three or four of them take turns to drive to the place 16 they all work．
More carpools should be formed in order to put 17 cars on the road and to use less oil．Car-parking space is a great problem，and 18 is the over busy road in and around cities．Too 19 cars are being driven．Something will have to be done about the 20 of cars．
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