阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。Theuniquewaysomeonewalkscanbetraywhotheyarewithalmostasmuchaccuracy(准确性)asfingerprints

Question

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

　　The unique way someone walks can betray who they are with almost as much accuracy(准确性)as fingerprints scientists have found．

　　Researchers have developed a method that can identify a unique “pressure signature” in their footsteps．By analyzing more than 100 000 pressure points created by people's feet as they walk the scientists were able to pinpoint 70 key patterns that are unique to an individual．They hope the system could provide a new form of “biometric” identification that could work alongside retinal(视网膜的)scanning and fingerprints at airports．The only trouble is that the system can only identify people if they are not wearing shoes．

　　Dr John Goulermas an electrical engineer at the University of Liverpool said they were hoping to develop the system so it will work when people are wearing shoes too．He said： “This is more complicated as the stiffness of the sole and the treads(脚底的硬度和踩踏的强度)can change things but it should still be possible．” The researchers asked 104 volunteers to walk across boards with thousands of highly sensitive pressure sensors．They recorded ten steps per person and then analyzed how each person's step changed to produce a unique profile for each person．When asked to then identify individuals from their footsteps the system was correct 99 . 6 per cent of the time．

　　Researchers have been investigating the unique aspects of gait(步态)for some time and many attempts have been made to use computer recognition software to detect individuals．Dr Todd Pataky who led the research at Liverpool University but has since moved to Shinshu University in Tokida Japan added “If we see a family member or a friend from a distance we can identify that person based on their walk．Our feet are the only parts ofour body that interact with the environment during walking so it is logical that an individual's unique movement patterns are transmitted via the feet to the ground．We are currently working on other checking whether other information can be unraveled(分解)from foot pressures including things like gender age and exercise levels but we expect that these characteristics will not be as well classified．”

(1)

According to the text the aim of this research is to ________．
[　　]
A．	work out a possible solution to foot problems．
B．	try out a system to improve people's health
C．	identify who someone is from his/her footsteps
D．	develop a new computer recognition software

(2)

We can infer from the passage that ________．
[　　]
A．	the system can identify people under any conditions
B．	family members and friends have the same way of walking
C．	other information will possibly be known from the foot pressures
D．	the system can ensure safety in any public places

(3)

Which of the following can best serve as the title of this passage?
[　　]
A．	How You Walk Can Betray You
B．	New Technology Has Been Invented
C．	Two Scientists Have Got a Good Idea
D．	Character Has Something to Do With Footsteps

Answer 1

答案：1．C;2．C;3．A;