Do you forget to turn off the lights and heaters when you go out of a room? In 2040 it will not matter. They will turn themselves off — and on again when you return. You will choose the temperature for each room, the lighting and the humidity. A sensor will detect the presence of a human and turn the systems on, and when the humans leave, it will turn them off again.

　　The sensors will work through the central home computer, and they will do much more than just turn the fires and lights on and off for you. They will detect faulty electrical appliances, plugs or switches, isolate them so that they cannot harm anyone, and then warn you that they need repair. They will detect fire and if you are out of the house, the computer will call the fire brigade. It will also call the police should the sensors detect an intruder. This will not be very difficult because the locks on the outside doors will be electronic. You'll open them using your personal card — the one you use for shopping — maybe using a number known only to you.

　　It will be impossible to lose the key, and a house breaker will have to tamper(拨弄) with the lock or with a window. It is not very difficult to make such tampering send a signal to the computer.

　　The computer will be more than a fireman-policeman-servant. It will be an entertainer, and most of your entertainment will come right into your home. It does now, of course, but by 2040 "entertainment" will mean much more. For one thing, you will be able to take part actively, rather than just waiting.

　　1.What will happen in 2040 according to the writer?

　　A.Lights and heaters will function automatically.

　　B.Temperature will be fixed in all of your rooms.

　　C.A sensor will tell whether you are in or out.

　　D.Household appliances will be rejected.

　　正确答案:A

　　2.Which one is NOT mentioned as the function of the sensors?

　　A.They can remind you of repairing the faulty appliances.

　　B.They can detect some burglars.

　　C.They can keep you safe from the dangerous plugs.

　　D.They can call the brigade and the police if necessary.

　　正确答案:D

　　3.Which of the following statements is NOT true according to the writer?

　　A.You can open the doors by using a private number.

　　B.You can open the doors by your personal shopping cards.

　　C.The house breaker will be found out by the sensors when he unlocks the door with your key.

　　D.Without the key, a house breaker will have to tamper with the lock or with a window.

　　正确答案:C

　　4.What will the life in 2040 be like?

　　A.People will be free from the keys used today.

　　B.People will be free from all kinds of locks.

　　C.There will be no criminals in the world.

　　D.All family things will be controlled by censors instead of human beings.

　　正确答案:A

　　5.Computer will be more beneficial to human beings in 2040 because we

　　A.can use a computer to enjoy all the amusement they need.

　　B.can take part in the entertainment more actively.

　　C.can use the computer to call the policemen, firemen and servants.

　　D.can use computer as the only tool to get amusement

　　正确答案:B