A three-year independent investigation into the September 11, 2001 attack on the Pentagon has yielded new eyewitness evidence which, according to the Southern California-based researchers who conducted the investigation conclusively (and unfortunately), establishes as a historical fact that the violence which took place in Arlington that day was not the result of a surprise attack by suicide hijackers, but rather a military black operation involving a carefully planned and skillfully executed deception."
A CNN Reporter at the scene states that there is no evidence that a 757 hit the Pentagon.
　  What hit the Pentagon? A Boeing 757 loaded with passengers and fuel right? Who was on Flight 757? According to the Flight Information there were No Arabs on it. That makes me wonder if Flight 757 actually existed at all.
　　From the pictures and the videos, people can find that there are several doubtful points that need to be taken into consideration, for example the marker line on the grass in the satellite and ground pictures, the different colors of the smoke, the hole which the plane impacted, and the standing pylons (架线塔).
　　Also, from the comparison of the different pictures, people can find some other strange points. For example, the gear (齿轮) is not the matching one. The wreckage of the plane is not the one from the American Airlines. The glass on the pavement of the pole is another doubtful point. The last thing that need considering is about the collapse. One of the gif video shows the plane impacting the Pentagon. The only problem with this video footage is that it has been altered (改变) and can not be fully trusted.
　　These crash photos and videos shown here clearly have been doctored (篡改) and don't even match the physics of what happened. So where is the real video? It leaves me many questions. Is this a missile? It is a real enigma.
【小题1】Where can you possibly read this article?

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

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 ________．

A three-year independent investigation into the September 11, 2001 attack on the Pentagon has yielded new eyewitness evidence which, according to the Southern California-based researchers who conducted the investigation conclusively (and unfortunately), establishes as a historical fact that the violence which took place in Arlington that day was not the result of a surprise attack by suicide hijackers, but rather a military black operation involving a carefully planned and skillfully executed deception."

A CNN Reporter at the scene states that there is no evidence that a 757 hit the Pentagon.

　  What hit the Pentagon? A Boeing 757 loaded with passengers and fuel right? Who was on Flight 757? According to the Flight Information there were No Arabs on it. That makes me wonder if Flight 757 actually existed at all.

　　From the pictures and the videos, people can find that there are several doubtful points that need to be taken into consideration, for example the marker line on the grass in the satellite and ground pictures, the different colors of the smoke, the hole which the plane impacted, and the standing pylons (架线塔).

　　Also, from the comparison of the different pictures, people can find some other strange points. For example, the gear (齿轮) is not the matching one. The wreckage of the plane is not the one from the American Airlines. The glass on the pavement of the pole is another doubtful point. The last thing that need considering is about the collapse. One of the gif video shows the plane impacting the Pentagon. The only problem with this video footage is that it has been altered (改变) and can not be fully trusted.

　　These crash photos and videos shown here clearly have been doctored (篡改) and don't even match the physics of what happened. So where is the real video? It leaves me many questions. Is this a missile? It is a real enigma.

1.Where can you possibly read this article?

2.What the word “yielded” mean in the first sentence?

3.Which of the following doubtful points is not mentioned in the passage?

4. What is the author’s attitude towards the 911 investigation?

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