3. At the beginning of the 21st century China had no high-speed railways.Traveling on trains in China was slow and uncomfortable.With low average speeds,it would take a long time to travel between major cities like Shanghai and Beijing.
Today,China already has the world's largest network of high-speed railways.No fewer than 37,900 kilometers(about 23,500 miles) of lines cross the country,linking all of its major mega-city clusters(特大城市群),and all have been completed since 2008,with a further 3,700 kilometers due to open in the coming months of 2021.The network is expected to double in length again,to 70,000 kilometers,by 2035.
With trains reaching speeds of up to 350 kph on many lines,intercity travel has been changed and the control of airlines has been broken on the busiest routes.By 2020,75% of Chinese cities with a population of 500,000 or more had a high-speed rail link.
In comparison,Spain has about 3,218 kilometers of high-speed rail lines built for operation at over 250 kph.At the same time,the UK currently has just 107 kilometers while the United States has a 735.5 kilometers railway line connecting highly developed areas.
As China seeks to grow its influence across Asia and into Europe and Africa through the significant "Belt and Road Initiative(一帶一路倡議)",rail is playing a key part in creating the new "Silk Road" it desires.
Although its trains are now among the fastest in the world,China is also spending significant funds on the development of maglev(磁懸?。?technology,which will allow it to operate passenger services at up to 620 kph -well beyond the current limits of steel wheel on steel rails.
(1)How was China's railway system at the beginning of the 21st century?
A.It was the world's largest.
B.It covered its major cities.
C.It was fast and comfortable.
D.It was slow and uncomfortable.
(2)What was the length of China's high-speed railway network in 2021?
A.About 3,700 kilometers.
B.About 37,900 kilometers.
C.About 41,600 kilometers.
D.About 70,000 kilometers.
(3)Which country has the second largest high-speed railway network?
A.China.
B.Spain.
C.The United Kingdom.
D.The United States.
(4)Why is China spending significant funds on maglev technology?
A.Because it is much cheaper.
B.Because it is more environmentally friendly.
C.Because it is already widely used in other countries.
D.Because it can break through the current speed limit.