2. 外语
  3. In the 19th Century and early 20th Century, railway trains had a vital role. In the later half of the 20th Century, the motorca

In the 19th Century and early 20th Century, railway trains had a vital role. In the later half of the 20th Century, the motorca

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问题     In the 19th Century and early 20th Century, railway trains had a vital
role. In the later half of the 20th Century, the motorcar and the aircraft have 【M1】______
eroded the importance of railway travel.
    However, new technology, high-speed rail, has enabled some train ser
vices to be faster and more convenient than the motorcar and aircraft. Mod
ern jet aircrafts can travel at great speed; there is no doubt about that. Trains, 【M2】______
however, travel with a maximum of 186mph or 300km/h. This is consider- 【M3】______
ably less than the aircraft, only about one third of the speed. So how can
they still compete? Aircraft has crucial disadvantages. First of all, airports 【M4】______
exist out of town. This is because they take a large amount of room, often 【M5】______
several square miles as with major airports. To get to the airport people face
a trip, often in the region of 30 minutes. 【M6】______
    Train stations, on the other hand, usually exist in the centre of cities, for
historical reasons. Even there is no room for a train station, it can be built 【M7】______
underground, so there would be no reason for a major station not to be at the
heart of the city. Hence journey time to and from stations is considerately 【M8】______
less than to airports.
    Secondly, there is bureaucracy. Airports require people to check-in, leav
ing baggages behind, and provide their tickets all the time. People are usu- 【M9】______
ally requested by the airline to arrive early. There is no such thing in trains,
you just find out the platform and walk straight into it. 【M10】______
【M4】
选项
答案has — have
解析 此题有一定难度。解题的关键同第二题，即理解aircraft是一个可数名词，而且是一个单复数同形的名词。所以aircraft这个词形本身并不能告诉我们这是一个复数概念还是 一个单数概念，我们要通过上下文来判断。那么此句中的aircraft到底是复数还是单数呢?我们发现一个可数名词单数不可能以零冠词修饰，一定要有定冠词或不定冠词修饰。此处实际上是零冠词修饰复数名词aircraft表类指，所以动词必须用复数形式。
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