17．Soon computers and other machines will be able to remember you by looking at your eyes!The program works because everyone's eyes are different．So in the future you won't have to remember the number of your credit card when you want to use a machine or take money out of a bank．You'll just have to look at the machine and it will be able to tell who you are．
The eye-recognition（眼睛識(shí)別）program has already been tested in shops and banks in the USA，Britain，Spain，Italy and Turkey．Soon this technology will take the place of all other ways of finding out who people are．
Eye-recognition is a course of recognizing iris（虹膜），which includes the following steps．First，a kind of machine needs to collect different examples of one's iris from his eyes and store them．Second，when this person goes to the bank to take out money，this machine will have iris feature extraction（采集）．Then，this machine will compare the examples kept in it with iris feature extraction．Once the examples and the feature extraction are the same，this person will be identified，and he will take out the money from the bank successfully．
However，scientists are also working on other systems．Machines will soon be able to know you from the shape of your face or hand or even your smell!We already have machines that can tell who you are from your voice or the mark made by your finger．
Eye-recognition is better than other kinds because your eyes don't change as you get older，and don't get dirty like hands or fingers，and even twins have different eyes．So the eye-recognition program can be up to 94% correct，depending on how good the technology is．However，some other programs may only be 51% correct now．In Britain，it was found that 91% of people who had tried it said that they liked the idea of
eye-recognition．
In the future your computer will be looking you in the eye．So smile!
41．The program has been tested in shops and banks inC．
A．America and China
B．Spain and Japan
C．Britain and Turkey
D．Italy and German
42．According to the steps in Paragraph 3，which picture shows how the eye recognition happens？B
43．According to Paragraph 4，for now，machines can identify people byC．
A．fingers and smell
B．face and voice
C．voice and finger
D．hand and face
44．What does Paragraph 4also talk about？A
A．Other kinds of systems to identify people．
B．Some special things of other programmes．
C．The places where other programmes are tested．
D．Some old machines used to identify people．
45．Which of the following is TRUE according to the passage？C
A．All the eye-recognition programs can be up to 94% correct．
B．In Britain，91% of people said that they liked the idea of eye recognition．
C．Everyone's eyes are different，even twins have different eyes．
D．Some other programs used to be 51% correct．
