1. (2022八下·南谯期中) 阅读下列短文，从每小题所给的A、B、C、D 四个选项中选出一个最佳选项。

Have you ever taken the train from Beijing to Shanghai or the train from Shanghai to Beijing? Then how much do you know about the Beijing-Shanghai railway?

The Beijing-Shanghai railway was completed in 1968. The line runs 1,462 kilometers between China's two main cities and passes through five provinces and the city of Tianjin.

Since opening, it has been one of the busiest lines in our country. Ten trains run on the Beijing-Shanghai railway every day. Five of them are non-stop. Now trains can travel at 250 kilometers per hour at most and the time of the travel is only 10 hours.

China has become one of the countries with high-speed train services. Trains run at the speed of 200 kilometers per hour on 6,003 kilometers of track(轨道), and on some parts, the highest speed can be 250 kilometers per hour. The 6,003 kilometers of track serves both high-speed passenger trains and low-speed cargo(货物) trains.

Railway operators(驾驶员) have to deal with the problem of the speed gap between the two kinds of trains to make sure they both run safely.

1. （1） The Beijing-Shanghai railway is ________.

   A . 1,462 kilometers B . 1,968 meters C . 6,003 kilometers D . 200 kilometers
3. （2） Half of the trains on the Beijing-Shanghai railway are ________.

   A . old B . non-stop C . made in Japan D . too slow
5. （3） Which of the following sentences is TRUE?

   A . Only one train is running on the 6,003 kilometers of track. B . The Beijing-Shanghai railway passes through six provinces. C . All the trains in China run without stopping. D . The Beijing-Shanghai railway has been one of the busiest lines in China.