1. (2022高二下·盐城期末) 听下面一段独白，回答以下小题。

As the car industry develops, traffic accidents have become as familiar as the common cold.<br />Yet their causes and control remain a serious problem that is difficult to solve.<br />Experts have long recognized that this discouraging problem has many causes.<br />At the very least, it is a problem that involves three factors.<br />The driver, the vehicle, and the roadway.<br />If all the drivers exercised good judgment at all times, there would be few accidents.<br />Improved design has helped to make highways much safer.<br />But the number of accidents continues to rise because of human failure<br />and an enormous increase in the number of automobiles on the road.<br />Attention is now turning increasingly to the third cause of the accidents, the car itself.<br />People want to know how cars can be built better to protect the drivers.<br />So there are also some new driverless cars on the road.<br />Are they really safe?<br />As the car industry develops, traffic accidents have become as familiar as the common cold.<br />Yet their causes and control remain a serious problem that is difficult to solve.<br />Experts have long recognized that this discouraging problem has many causes.<br />At the very least, it is a problem that involves three factors.<br />The driver, the vehicle, and the roadway.<br />If all the drivers exercised good judgment at all times, there would be few accidents.<br />Improved design has helped to make highways much safer.<br />But the number of accidents continues to rise because of human failure<br />and an enormous increase in the number of automobiles on the road.<br />Attention is now turning increasingly to the third cause of the accidents, the car itself.<br />People want to know how cars can be built better to protect the drivers.<br />So there are also some new driverless cars on the road.<br />Are they really safe?

1. （1） How many factors of car accidents are mentioned?

   A . 2. B . 3. C . 4.
3. （2） What measure has been taken to reduce car accidents?

   A . Improved highway design. B . Stricter traffic management. C . Strengthened training for drivers.
5. （3） What remains an important cause of road accidents?

   A . Poor traffic control. B . Some driverless cars. C . Drivers' carelessness.