We finished the run in less than half the time　　　 .?

A.allowing　　　　　 B.to allow　　　 C.allowed　　　　 D.allows

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 (濕度). A sensor will detect the presence of a human (and, with luck, ignore the dog!)and turn the systems n, 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 (電器), plugs or switches, isolate (使絕緣) 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 if the sensors detect an intruder (入侵者). This will not be too difficult because the locks on the outside doors will be electronic. You will open them using your personal card —the one you use for shopping —may be using a number known only to you.

It will be impossible to lose the key, and a house—breaker will have to tamper (撥弄) with the lock or with a window. It is now very difficult to make such tampering send a signal to the computer.

The computer 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 watching.

1. The author intends to tell us that in 2040________________.

　 A. we will live without lights and heaters

　 B. we will sue more lights and heaters

　 C. there will be no switches of lights and heaters

D. lights and heaters will be on the off automatically

2. Which of the following statements is NOT true?

A. The sensor is multi － functional.

B. Without a computer, the sensor can not do much.

C. The sensor will detect fire and make an emergency call.

D. You can be taken for an intruder if you tamper with the lock or with a window.

3. According to the author, in 2040, new technology will_____________.

A. free us from the keys we use today

B. turn everything into sensors

C. make the locks out of date

D. get rid of all crimes

4. Thanks to computers, in 2040 people will _________________.

　 A. have no entertainment outside

　 B. replace TV with computers

　 C. be controlled by computers

　 D. have more fun at home

5. The best title for the passage might be_____________.

A. Sensors and Computers

B. Life at Home in the Year 2040

C. The Development of Science and Technology

D. Lights and Heaters in the Year 2040

After the star’s excellent performance on the stage, the a____________ all burst into cheers.

A f _____ is a large or special meal, especially for a lot of people to celebrate something.

It is worth considering what makes“convenience” foods so popular， and　　 better ones of

your own.?

A.introduces　　　　　　 B.to introduce?　　 C.introducing　　　 D.introduced

–What’s the noise? It sounds as if it comes from upstairs.　

　 --______.It must be the window-cleaner working, next door.

A. I’m not sure　　 B. I hope not　　 C. I’d rather not　 D. I don’t think so

The purse found on the playground matches the ______ by Mary, so it must be hers.

A. direction        B. expression     C. description     D. instruction

Anyone ______ trying to take knives on heard flights would be caught by the police.

A. finds　　　　　　　　　　 B. found

C. being found　　　　　　　 D. will find

―I’ve already made up my mind.
  ―________, there’s no point discussing it now.
 A. In case      B. In that case 
C. On the case      D. As the case may be

There's no light on in the dormitory．They must have gone to attend the concert to be held on the campus, ______　

A．didn’t they? 　　　　　　 B．mustn't they? C．haven’t they 　 D．shouldn't they?