Question

阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式。

The London Underground is the oldest underground network in the world. It normally 1.(operate) between 5 am and midnight. Some lines stay open throughout the night on special 2.(occasion), like New Year’s Eve. The London Underground stations can get very 3.(crowd) during the weekday rush hours. Over the decades the London Underground stations have been modernized. In the past few years, many 4.(equip) with Wi-Fi access to make passengers’ journeys as comfortable as possible. 5. well-known symbol of the London Underground, a red circle with a blue bar, was created at the 6.(begin) of the 20th century and has not changed much since then. Some of the London Underground stations are buildings 7. have special architectural values. Many original stations have been restored 8. they look similar to the way they did over a century ago.

With so many people 9.(use) it every day, the London Underground faces environmental problems. Because the water level of the Thames is on the rise 10.(constant), thousands of cubic meters of water must be pumped out of the underground stations every day.

Answer

1.operates

2.occasions

3.crowded

4.have been equipped

5.The

6.beginning

7.which / that

8.and

9.using

10.constantly

【解析】

本文是一篇说明文，介绍了世界上最古老的地铁网络——伦敦地铁的历史、发展及面临的问题。

1.考查时态和主谓一致。句意：它通常在凌晨5点到午夜之间运行。此处operate作不及物动词，表示“运转”，陈述的是客观事实，用一般现在时，主语为It，谓语动词用第三人称单数，故填operates。

2.考查名词的数。句意：在特殊情况下，比如新年前夜，一些线路会通宵营运。occasion是可数名词，此处用复数表泛指，on special occasions表示“在特殊情况下”，故填occasions。

3.考查形容词。句意：在工作日的高峰时间，伦敦地铁站会非常拥挤。作系动词get的表语用形容词，根据during the weekday rush hours可知，此处表示“拥挤的”，故填crowded。

4.考查时态语态。句意：在过去的几年里，很多地铁（线路）都安装了Wi-Fi，让乘客的旅途尽可能的舒适。时间状语“In the past few years”表明用现在完成时，many与equip之间是被动关系，所以用现在完成时的被动语态，主语是复数，谓语动词也随之用复数形式，故填have been equipped。

5.考查定冠词。句意：伦敦地铁的著名标志是一个有蓝条的红圈，设计于20世纪初，从那时起就没有什么变化。symbol是可数名词，需要用冠词修饰，根据“a red circle with a blue bar”可知，此处用定冠词表特指，故填The。

6.考查名词。句意同上，作介词at的宾语用名词，at the beginning of表示“在……的开始”，故填beginning。

7.考查定语从句。句意：伦敦的一些地铁站具有特殊的建筑价值。此处为定语从句，关系词指代先行词buildings，并在从句中作主语，故填which / that。

8.考查连词。句意：许多原始的车站已经修复，它们看起来和一个多世纪以前的样子很相似。分析句子结构可知，此处缺少连词，根据句意可知前后是顺承关系，故填and。

9.考查with的复合结构。句意：由于每天都有那么多人使用它，伦敦地铁面临着环境问题。此处为“with+宾语+宾补”的复合结构，people与use之间是逻辑上的主谓关系，表示主动，而且动作正在进行，用现在分词作宾语补足语，故填using。

10.考查副词。句意：由于泰晤士河的水位不断上涨，每天必须从地铁站抽出数千立方米的水。修饰介词短语on the rise用副词，故填constantly。