19.
How do your computers,cell phones or i-pads remember you?Maybe they get to recognize*you by your secret numbers.Soon computers and other machines like cars will be able to remember you by looking at your eyes.It is the eye-recognition program.The program works because everyone's eyes are different,so in the future you won't have to remember a number 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 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.
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 recognize you from your voice or the mark made by your finger.In some modern families,people can already open the doors and windows by fingers or voice instead of keys.
Eye-recognition is better than other kinds of programs 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.That's why the eye-recognition program can be up to 94% correct,depending on how good the technology is.The other programs may only be 51% correct at present.In Britain,91% of people who had tried it said that they liked the idea of eye-recognition.
In the future your computer or car will be looking at you in the eye.So smile!
48.The eye-recognition program can tellB.
A.where you are
B.who you are
C.what your job is
D.how you are
49.How does the eye-recognition program work?C
A.People have to write secret numbers.
B.People have to show the finger.
C.People have to look at the machine.
D.People have to tell their names.
50.Why can the eye-recognition program be better than others?B
A.Because it never makes mistakes.
B.Because different people have different eyes and eyes never change.
C.Because 91% people said that they liked the idea of eye-recognition.
D.Because it has already been tested in shops and banks in some countries.
51.Which of the following is TRUE according to the passage?B
A.The eye-recognition program has already been tested in Japan.
B.Some people have already opened the doors by voice instead of keys.
C.Computers can remember you by looking at your clothes.
D.In the future the cars can remember us if we smile.