The monkeys couldn’t use words to tell the scientists what they had felt.Instead，they communicated by looking in a particular direction—just as when they had really been touched.

The new findings show how touch­sensitive devices could be built.The new study also offers “a nice clear pathway” for figuring out how to restore a sense of touch to an amputee (被截肢者) or someone with a injury of spinal cord.

The study shows how artificial limbs might be connected to the brain so that a person can “feel” with such a prosthesis (假肢)．But such a supersensory device doesn’t exist yet and scientists have a lot of work to do before people will benefit from it.Researchers must first figure out whether the electrodes would work in people in the same way they do in monkeys.

“I think the foundation is laid for human trials，” Bensmaia said.

【解题导语】本文是一篇科技文。文中介绍了一种新型的技术也就是电信号可以让人们的触觉产生错觉，即使是没有触摸到东西也有触感。这种技术可以为瘫痪或截肢病人带来方便。

1．What does the underlined word “it” refer to ?

A．The sense of touch.

B．An artificial limb.

C．The turning of a doorknob.

D．The lifting of a cup

解析：选A。细节理解题。第四段的首句说触觉对日常工作的完成至关重要，所以这里指的就是触觉。故选A。

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