资料：Taikong City was founded by the dormuns about 50 AD.Its name is derived from a Cethic worldwhich means the piece of the bold one.After they invaded Bliton in 43 AD the Dormons built a bridge across the Themas River.They later decided it was an excellent place to built a port.The water was deep enough for ocean going ships but it was far enough inland to be safe from other raiders.Around 50 AD Dormons merchants built a town by the bridge.So Taikong City was born.
There was not a stone wall around the early settlement but there may have been a ditch and an earth ramepart with a wooden palisade on top.Then in 61 AD Queen Boudia led a rebellion against the Dormuns .Her army marched on Taikong City. No attempt was made to defend Taikong City.Boudia burned Taikong City but after her rebellion was crushed a was rebuilt.Rich peole built houses of stone or brick with tiled roofs but most people lived in wooden houses.By the end of the 2nd century stone wall was erected aroung Taikong City. The wall was 20 feet high.Outside the wall was a ditch.In the middle of the 3rd century 20 bastions were added to the walls （a semi-circular tower projecting from the wall）.
what is this passage mainly about?
本题考查主旨大意。
【关键词】passage mainly about
【主题句】第1自然段Taikong City was founded by the Dormuns about 50 AD.“公元50年左右，Dormuns建立了Taikong城。”
【解析】本题问的是“这篇文章主要讲的是什么？”。选项A意为“Taikong城的历史”；选项B意为“石墙在Taikong城附近”；选项C意为“Taikong城名称的由来”；选项D意为“反对Dormuns（多姆斯）的叛乱”。文章在开头提到Dormuns在公元50年左右建立了Taikong城。然后提到了名字的由来，石墙以及叛乱等内容并展开叙述。结合主题句，故A选项正确。
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