首页
登录
职称英语
[img]2021m4s/ct_ve01004004m_eyyjsdreadc_0378_202104[/img] If you have vi
[img]2021m4s/ct_ve01004004m_eyyjsdreadc_0378_202104[/img] If you have vi
游客
2024-08-19
33
管理
问题
If you have visited London, I’m sure that you have travelled on the London Underground.The earliest underground railway line in London was built in the middle of the 19th century.Steam engines pulled the trains, and smoke filled the stations and tunnels.Despite this, Londoners loved their new underground trains.They were a quick and convenient way to get to work.People could work in central London but live away from their work, often in better houses than before.New underground lines were built in the late 19th and the 20th century.They helped London to grow bigger and bigger.
Both Londoners and visitors needed to know which underground lines went to which places.They needed maps.Until the 1930s, maps of the underground were simply street maps with the underground lines added.In the centre of London, where there are lots of underground lines and stations, the maps were crowded and difficult to read.But if you made the map so that you could see easily what the underground system in central London was like, the map had to be very big to cover all the underground lines in the suburbs.
The problem was solved by a man called Harry Beck.He drew a map which looks like an electric circuit diagram.He made central London big, so that you could see all the lines and stations, and the suburbs small so that the map was in a reasonable size.He drew the underground lines so that they were either vertical, or horizontal, or at 45 degrees.He gave the different lines different colours.He said that people needed the map so that they could see how to get from one station—say, Victoria to another station—say, Marylebone.People didn’ t need to know the exact route of the railway line, or the exact distance between stations.So there were no streets on his map, and the stations are all about the same distance apart.
It was in the middle of the 19th century that Londoners built the first underground railway line.It helped Londoners go to work quickly and【A1】___________ and made the London become【A2】___________ in the next decades.However, the underground railway lines were simply【A3】___________to the street maps until the 1930s and they were hard to read.The problem was solved by Harry Beck who drew a map of underground railway lines like【A4】___________diagram, which can indicate all the lines in different 【A5】___________and stations with the same distance apart. [br] 【A2】
选项
答案
bigger and bigger
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3726938.html
相关试题推荐
[img]2021m4s/ct_ve01004004m_eyyjsdreada_0059_202104[/img]Whendifficultp
[img]2021m4s/ct_ve01004004m_eyyjsdreada_0059_202104[/img]Whendifficultp
[img]2021m4s/ct_ve01004004m_eyyjsdreada_0059_202104[/img]Whendifficultp
[img]2021m4s/ct_ve01004004m_eyyjsdreada_0059_202104[/img]Whendifficultp
[img]2021m4s/ct_ve01004004m_eyyjsdd_0334_202104[/img][br][originaltext]
[img]2021m4s/ct_ve01004004m_eyyjsdreadb_0267_202104[/img]Whendochildre
[img]2021m4s/ct_ve01004004m_eyyjsdreadb_0267_202104[/img]Whendochildre
[img]2021m4s/ct_ve01004004m_eyyjsdreadb_0267_202104[/img]Whendochildre
Whatnumbershouldreplacethequestionmark?[img]2021m4s/ct_ve01004004m_eyyjsd
[img]2021m4s/ct_ve01004004m_eyyjsdreadc_0378_202104[/img]Ifyouhavevi
随机试题
Goodmorning,class.Today’stopicis"IdiomsandTheirOrigins".Anidiomi
BeginninginOctober,morethan13000McDonald’srestaurantsinAmericawill
共生是指两种不同生物之间形成的紧密互利关系。在共生关系中,一方为另一方提供有利于
A.颈神经根注射 B.星状交感神经节注射 C.颈椎旁肌内注射 D.肱二头肌
开展带电设备红外诊断,当在室内或晚上检测时,应闭灯检测。
下列关于各类血管功能特点的叙述,哪一项是正确的 A.毛细血管前括约肌属于毛细血
根据以下资料回答56—60题 中国汽车工业协会发布的2009年4月份中国汽车产
基金是一种利益共享、风险共担的金融产品。( )
按起重机分类,桅杆起重机属于()。A.臂架型起重机 B.桥式起重机 C
下列说法不正确的是()。A、“预付账款”借方登记预付的款项和补付得款项 B、“
最新回复
(
0
)