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．
【小题1】The remote immobilizer is fitted to a car to ________．

John Davis doesn’t use his GPS system in his car. Instead of guiding the direction, the Delaware farmer uses it to determine where and how much fertilizer to use on the crops on his 4,000-acre family-owned farm. Technological advances like that last year helped Davis and other Ohio farmers set a record for corn product. Ohio's corn crop in 2009 totaled 546 million bushels(蒲式耳), despite a cooler and wetter than normal spring, a dry summer and a delayed, wet harvest. Davis said. “I knew it would be a good crop, but it was much better than we expected.”

A farmer can map his fields on GPS, spotting where soil turned out to be least fertile（肥沃的） and using more fertilizer the next year in those areas where corn didn’t grow as well.

Although Ohio farmers produced more corn, it was grown on less land than in the past years. Total area used for corn in Ohio was 3.35 million acres, about the same as in 2008 but down from 3.85 million acres in 2007, said Dwayne Siekman, director of the Ohio Corn Growers Association. “When you look at the total number of acres in Ohio used for corn, it’s clear that farmers are able to do more with less,” he said. “American farmers can grow five times more corn on 20 percent less land than they did in the 1930s, saying that modern farming techniques are necessary for a growing demand in the world today.” That technology includes using improved seeds that can withstand(忍受) greater temperature extremes and pests, Siekman said.

Farmers aren't the only ones who benefit. Consumers(消费者) do, too, as food costs reduce in the face of “enough supplies of corn,” said Fred Yoder, who runs a 1,500-acre corn, soybean and wheat farm in Plain City. “This is the best, highest-producing corn crop that I've raised in 30 years,” he said.

1.Most people usually use the GPS system for ______.

A. driving their cars

B. telling the position

C. mending the car

D. supplying the sunshine

2.The farmers in Ohio use GPS to ______.

A. check if the soil is fertile in some areas

B. control the rain of the place

C. water the crops if the weather is dry

D. draw the map of all the crops

3.Why did Ohio farmers produce more corn?

A. Because they expanded more land to grow corn

B. Because they turned to technological advances

C. Because they used more and more fertilizer.

D. Because they supplies themselves with more money.

4. From the passage, we can know _____.[

A. John Davis hadn’t expected a good harvest.

B. farmers grew less land than in the 1930s

C. improved seeds cost much more money

D. the output of corn in the same field is increased.

阅读下列应用文及相关信息，并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑。若选择E，请涂AB；若选择F，请涂CD。

首先请阅读下列GPS的信息：

A．TomTom One 125-GPS Receiver

The TomTom One 125 isn’t the newest or flashiest portable navigation device on the market, but that’s OK. Not everyone needs the latest or greatest. What the One 125 offers is a solid, entry-level GPS for first time buyers or for those looking for the most basic navigation function.

Price: $98.00---$179.99

B. Garmin Nuvi 880

As we’ve come to expect from the Nuvi line, the Garmin Nuvi 880 offers an impressive feature list and solid performance, but it’s the accurate speech recognition that really pushes the Nuvi 880 over the gdge and makes it one of the best GPS we’ve tested to date.

Price :$599.95

C. NA1/4vi 200-270

Tis affordable entry-level personal travel assistant comes with preloaded maps for the continental U. S. Hawaii, and Puerto Rico. For even more mapping options, NA1/vi 250 features preloaded maps for all of North America, while the transatiantic NA1/4vi 270 includes preloaded maps for both continents. Like all nuvi 200-series members, the 200 features an easy-to-use colorful touchscreen and ultra-slim design---perfect for everyday navigation.

Price: $499.00

D. Magellan Maestro 4370

Despite a couple of minor performance issues, the Magellan Maestro 4370 offers convenience through its new OneTouch interface, providing you with quick one-click access to your preferred destinations. The GPS also delivers with features and accurate directions.

Price: $480.00

E. Navigon 7200T

       The Navigon 7200T offers an attractive design and plenty of features, including voice address entry, 3D landmark renderings, text‐to‐speech functionality, and integrated Bluetooth．The user interface and maps still aren’t as clean as a Garmin or a TomTom, but performance has improved and address entry by voice can be quite accurate with some training．

Price: $ 149．99—$ 339．95

F．Mio C520 Navigation Receiver

       The sleek Mio C520 is a good‐value GPS devise, packing in advanced navigation features, a large screen, and other extras for an affordable price．It is even sleek enough that we’d use it as a video player．Our only complaint is that we think you can get a slightly better experience and smoother performance from competing systems．

Price: $ 349．99

以下是车主的购买意向。请把车主与其想购买的 GPS匹配起来。

Fighting in the commercial circle and getting a great success, Malcolm makes a fortune and buys a luxury car, a land‐based rocket ship which we’d seen only in our dreams, to develop an even brighter future．With the car equipped with computers and video screens, he still wants a super audio‐GPS with  high accuracy．

Russel is a farmer in a mountainous area who grows hundreds of acres of crops．To transport his goods town timely, he buys a Maserati which runs very fast and first of all, meets the natural conditions．Though the car is of style quality and high technology, he prefers his Maserati to be operated more easily–one click is enough for GPS, creating most advanced road cars in the world．

Desmond is a young athlete．Having won a champion in an important international game, he buys a car equipped with the first four‐cam 32‐valve V8 engine offered in a sport‐utility vehicle．Of course, the car is extremely fast and is especially fit for him, but he wants a GPS that brings him not only convenience but also amusement．

Carls has just been admitted to a famous university hundreds of kilometers away from her hometown and has bought a car provided by an advanced‐design Triton engine, with a perfect cooling system, and plenty of pulling power．As a new driver, the young girl student certainly needs a GPS which costs not too much．

Warren is a businessman traveling to different parts of America in any weather situation．He has a new Lincoln Aviator, 302‐hp best‐in‐class V8, 3rd‐row seating, and available climate controlled front seats． He needs a satisfactory GPS to make his business better．

LAS VEGAS (AFP) — Children may not like it but a British technology firm has invented an electronic babysitter -- a wristwatch-like device that lets parents know where their children are at all times.

The GPS Child Locator, or num8, attaches securely to a child’s wrist and contains a Global Positioning System (GPS), said Matthew Salmon, a spokesman for the manufacturer, lok8u.

"It uses GPS and GSM (Global System for Mobiles) technology with an accuracy of 10 feet (three meters)," he said. "It tracks your child."

"It only starts working when the device is connected to the child’s wrist," Salmon said, and is "very difficult to get off."

"Even if the child managed to get it off it would send an emergency text message through to your mobile phone," he said. "It would give you a Google Maps image with their exact location, the street name and the zip code."

When a child is wearing the device, a parent sends the text message "wru" and the child’s current location is sent back to a mobile phone or computer.

Parents can also log on to the company website to discover their child’s present location.

"You can also set up a perimeter, an invisible fence, and if they wander out of this invisible fence which you put on the Internet it will warn you," Salmon said. "It will text you immediately."

Salmon said the device is waterproof and shockproof and lasts for three days with a full charge.

It will be available in both Britain and the United States this year and retails for 200 dollars with a 10 dollar a month subscription fee.

He said the company had received thousands of inquiries about the device since launching it this week. "Fifty percent are positive, 50 percent are negative, that it’s a bit Big Brotherish," he said. "But it’s really just about letting you have freedom of mind."

1.Only when       does the device begin to work.

         A．it uses GPS and GSM technology                B．it is put within about 3 meters

         C．it’s joined to parents’ computer                 D．it is fastened to the child’s wrist

2.If a child is wearing the “wristwatch”, parents can track them by      .

         A．sending the text message “wru”                B．replying to the text message

         C．getting a Google Maps picture                   D．phoning the local police station

3.What Can we conclude from the text?

         A．It won’t be easily found if a child loses t11e device

         B．The device won’t work while a child is swimming

         C．Parents can easily track children due to the device

         D．The new product needs to be fully charged daily

4.The purpose of the text is to      .

         A．explain how to use the new device

         B．attract more buyers to the new product

         C．discuss advantages of a new invention

         D．introduce a new electronic equipment

LAS VEGAS (AFP) — Children may not like it but a British technology firm has invented an electronic babysitter -- a wristwatch-like device that lets parents know where their children are at all times.

The GPS Child Locator, or num8, attaches securely to a child’s wrist and contains a Global Positioning System (GPS), said Matthew Salmon, a spokesman for the manufacturer, lok8u.

"It uses GPS and GSM (Global System for Mobiles) technology with an accuracy of 10 feet (three meters)," he said. "It tracks your child."

"It only starts working when the device is connected to the child’s wrist," Salmon said, and is "very difficult to get off."

"Even if the child managed to get it off it would send an emergency text message through to your mobile phone," he said. "It would give you a Google Maps image with their exact location, the street name and the zip code."

When a child is wearing the device, a parent sends the text message "wru" and the child’s current location is sent back to a mobile phone or computer.

Parents can also log on to the company website to discover their child’s present location.

"You can also set up a perimeter, an invisible fence, and if they wander out of this invisible fence which you put on the Internet it will warn you," Salmon said. "It will text you immediately."

Salmon said the device is waterproof and shockproof and lasts for three days with a full charge.

It will be available in both Britain and the United States this year and retails for 200 dollars with a 10 dollar a month subscription fee.

He said the company had received thousands of inquiries about the device since launching it this week. "Fifty percent are positive, 50 percent are negative, that it’s a bit Big Brotherish," he said. "But it’s really just about letting you have freedom of mind."

Only when       does the device begin to work.

       A．it uses GPS and GSM technology   B．it is put within about 3 meters

       C．it’s joined to parents’ computer      D．it is fastened to the child’s wrist

If a child is wearing the “wristwatch”, parents can track them by      .

       A．sending the text message “wru”      B．replying to the text message

       C．getting a Google Maps picture D．phoning the local police station

What Can we conclude from the text?

       A．It won’t be easily found if a child loses t11e device

       B．The device won’t work while a child is swimming

       C．Parents can easily track children due to the device

       D．The new product needs to be fully charged daily

The purpose of the text is to      .

       A．explain how to use the new device

       B．attract more buyers to the new product

       C．discuss advantages of a new invention

       D．introduce a new electronic equipment