摘要:He has got a disease that might lead to total blindness if . A.leaves untreated B.left untreated C.leaving untreated D.left untreating 答案:B 提示:此句为if it is left untreated的省略形式.过去分词表示被动.

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Speeding off in a stolen car, the thief thinks he has got a great catch.But he is in for an unwelcome surprise.The car is fitted with a remote immobilizer, and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

The idea goes like this.A control box fitted to the car contains a mini-cellphone, a micro-processor and memory, and a GPS (全球定位系统) satellite positioning receiver.If the car is stolen, a coded (编码的) cellphone signal will tell the control centre to block the vehicle’s engine management system and prevent the engine being restarted.

In the UK, a set of technical fixes is already making life harder for car thieves.“The_pattern_of_vehicle_crime_has_changed,” says Martyn Randall, a security expert.He says it would only take him a few minutes to teach a person how to steal a car, using a bare minimum of tools.But only if the car is more than 10 years old.

Modern cars are far tougher to steal, as their engine management computer won’t allow them to start unless they receive a unique ID code sent out by the ignition (点火) key.In the UK, technologies like this have helped achieve a 31% drop in vehicle-related crime since 1997.

But determined criminals are still managing to find other ways to steal cars, often by getting hold of the owner’s keys.And key theft is responsible for 40% of the thefts of vehicles fitted with a tracking system.

If the car travels 100 metres without the driver confirming their ID, the system will send a signal to an operations centre that it has been stolen.The hundred metres minimum avoids false alarms due to inaccuracies in the GPS signal.

Staff at the centre will then contact the owner to confirm that the car really is missing, and keep police informed of the vehicle’s movements via the car’s GPS unit.

The remote immobilizer is fitted to a car to ________.

       A.prevent car theft by sending a radio signal to the car owner

       B.help the police make a surprise attack on the car thief

       C.prevent the car thief from restarting it once it stops

       D.allow the car to lock automatically when stolen

By saying “The pattern of vehicle crime has changed”, Martyn Randall suggests that ________.

       A.it takes a longer time for the car thief to do the stealing

       B.self-prepared tools are no longer enough for car theft

       C.the thief has to make use of computer technology

       D.the thief has lost interest in stealing cars over 10 years old

________ is necessary in making a modern car tougher to steal.

       A.A coded ignition key          B.A unique ID card

       C.A special cellphone signal         D.A GPS satellite positioning receiver

The operations centre will first ________ after receiving an alarm.

       A.start the tracking system  B.contact the car owner

       C.block the car engine D.locate the missing car

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Speeding off in a stolen car, the thief thinks he has got a great catch. But he is in for an unwelcome surprise. The car is fitted with a remote immobiliser (锁止器), and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.
The idea goes like this. A control box fitted to the car contains a mini-cellphone, a micro- processor and memory, and a GPS (全球定位系统) satellite positioning receiver. If the car is stolen, a coded cellphone signal will tell the control centre to block the vehicle's engine management system and prevent the engine being restarted.
In the UK, a set of technical fixes is already making life harder for car thieves. 'The pattern of vehicle crime has changed,’ says Martyn Randall, a security expert. He says it would only take him a few minutes to teach a person how to steal a car, using a bare minimum of tools. But only if the car is more than 10 years old.
Modern cars are far tougher to steal, as their engine management computer won't allow them to start unless they receive a unique ID code beamed out by the ignition (点火) key. In the UK, technologies like this have helped achieve a 31% drop in vehicle-related crime since 1997.
But determined criminals are still managing to find other ways to steal cars, often by getting hold of the owner's keys. And key theft is responsible for 40% of the thefts of vehicles fitted with a tracking system.
If the car travels 100 metres without the driver confirming their ID, the system will send a signal to an operations centre that it has been stolen. The hundred metres minimum avoids false alarms due to inaccuracies in the GPS signal.
Staff at the centre will then contact the owner to confirm that the car really is missing, and keep police informed of the vehicle's movements via the car's GPS unit.
66. What's the function of the remote immobilizer fitted to a car?
A .To allow the car to lock automatically when stolen.
B. To prevent the car thief from restarting it once it stops.
C. To help the police make a surprise attack on the car thief.
D. To prevent car theft by sending a radio signal to the car owner.
67. By saying 'The pattern of vehicle crime has changed' (Lines 1-2. Para. 3). Martyn Randall suggests that ____.
A. self-prepared tools are no longer enough for car theft
B. the thief has to make use of computer technology
C. it takes a longer time for the car thief to do the stealing
D. the thief has lost interest in stealing cars over 10 years old
68. What is essential in making a modern car tougher to steal?
A. A GPS satellite positioning receiver.       B. A unique ID card.   
C. A special cellphone signal.                D. A coded ignition key.
69. Why does the tracking system set a 100-metre minimum before sending an alarm to the operations centre?
A. To give the driver time to contact the operations centre.
B. To allow for possible errors in the GPS system.
C. To keep police informed of the car's movements.
D. To leave time for the operations centre to give an alarm.
70. What will the operations centre do first after receiving an alarm?
A. Start the tracking system.         B. Locate the missing car.
C. Contact the car owner.          D. Block the car engine

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Computer programmer David Jones earned $ 150,000 a year designing new computer games, yet he cannot find a bank prepared to let him have a check card (信用卡). Instead, he has been told to wait another two years until he is 18.
He works for a small firm in Liverpool, where most young people of his age are finding jobs. David”s biggest headache is what to do with his money. Though he has high payment, he cannot drive a car, or get credit cards.(信用卡)
David got his job four months ago, a year after leaving school with six O-Levels(普通成绩) and working for a time in a computer shop. “I got the job because the people who run the firm knew I had already written some programs,” he said.
“I suppose $150,000 sounds a lot but I hope it will come to more than that this year.” He spends some of his money on records and clothes, and gives his mother $20 a week as he lives with his parents. But most of his spare time is spent working.
“Unfortunately, computing was not part of our studies at school,” he said. “ But I had been studying it in books and magazines for four years in my spare time. I knew what I wanted to do and never considered staying on at school. Most people in this business are fairly young, anyway. I would like to earn a million and I suppose early retirement(退休) is a possibility. You never know when the market might disappear.
11. why is David so different from other young people of his age?
A .He has got a job.                                   B. He lives at home with his parents
C .He does not get out much.               D. He earns a high payment
12. David’s greatest problem is that _____.
A. he can’t be treated as an adult (grown-up) by the bank
B. he can’t make as many games as he wishes
C .he doesn’t know what to buy with the money
D. he is too young to drive a car
13. He was employed by the company because _____
A .he had worked in a computer shop
B. he had written some computer programs
C. he is clever and works hard at his lessons
D. he had learnt computer from books and magazines
14. He left school after taking six O-Levels because ____.
A. he was afraid of getting too old to start computing               B. he didn’t enjoy school
C. he wanted to work with computers                                      D. he wanted to earn a lot of money.
15. Why does David think he might retire early?
A. He thinks computer games might not always sell so well.
B. He wants to stop working when he is a millionaire.
C. One has to be young to write computer programs
D. He thinks his firm might close down.

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