Imagine that you are a superhero.Your superpowers are activated by a special suit.The suit communicates with your brain.It allows you to do amazing things with only a thought.By concentrating on strength,for example,you can kick a soccer ball across a field.By focusing on swift actions,you can jump to the top of a tree.
Such a connection between mind and machine may sound like a fantasy.To scientists,though,it is a very real goal.They are creating machines that let disabled monkeys walk.These machines may soon help disabled humans do the same.Unlike other bionic devices,these robotic "super suits" do not communicate with muscles and nerves.Instead,they have a direct line to the brain.
In 2005，doctors drilled a hole in the skull of Hutchinson,who had lost her right arm in an accident.Then they inserted a sensor onto her motor cortex（大脑皮层运动区）.Wires connected the sensor to a receiver on her head.After she recovered,researchers plugged Hutchinson's receiver into a cable that relayed signals from her brain to computers.Then they connected a robotic arm to the computers.The computers could interpret Hutchinson's brain signals to move the arm.
Soon,Hutchinson,the computer,and the robotic arm became a team.Hutchinson was even able to lift her hand and drink from a cup. "She smiled when she put down that drink—that's everything." says Donoghue,a brain scientist.
Today other scientists are building on that success.One of those scientists is Dr.Miguel Nicolelis,who designed a whole-body bionic equipment.In 2014，a disabled former athlete kicked the first ball of the World Cup Games wearing one of Miguel's full-body exoskeletons.
The exoskeleton was connected to brain signal sensors in the man's cap.By thinking about kicking,he sent signals to a computer on his back.The computer then translated the signal into an exoskeleton-aided kick.Such designs may become common as scientists keep merging mind and machine.



Which can best describe the tone of paragraph 1？ ______

A. Narrative and serious.
B. Persuasive and critical.
C. Informative and objective.
D. Descriptive and imaginative.

What is paragraph 3 mainly about？ ______

A. Reason of the experiment.
B. Results of the experiment.
C. Process of the experiment.
D. Significance of the experiment.

Why is Dr.Miguel's exoskeleton special？ ______

A. It can be used on animals.
B. It can move the whole body.
C. It was supported by computers.
D. It was connected directly to the brain.

What can be inferred from the last paragraph？ ______

A. Robotic suits may be widely used to help disabled people.
B. Exoskeleton is more common than Hutchinson's bionic arm.
C. Scientific experiments are commonly carried out in football fields.
D. Disabled athletes can now play football again with the help of computer.