新闻报道的结构一般分为四个部分：（一）标题、（二）导语、（三）主体、（四）结语。标题是新闻的题目，是编辑对最有新闻价值内容的浓缩、概括、提炼和再创造。撰写标题是为了撷取新闻要点、诠释新闻意义、吸引读者阅读。在今天繁忙的现代社会中，报纸的读者大多是标题浏览者。导语是消息开头的第一段或第一句话，它扼要地揭示出消息的核心内容。主体是消息的主要部分，它用充足的事实表现主题，是对导语内容的进一步开展和阐释。新闻报道的结语一般是最后一句话或者一段话，通常对全文内容作概括性的总结，或对新闻事件的发展趋势作出预测。有时，作者根据报道的事实在结语中提出令人深思的问题。

一般来说，标题、导语和主体是构成新闻报道的必不可少的三部分。可根据新闻报道的内容而确定是否要结语或其它内容（如事件和历史背景等），有时，还可将它们暗含在主体中。

在写新闻报道时，首先要注意新闻的标题具有语言幽默风趣的特点，有较强的吸引力。同时，写作依据的材料要充分，要用事实来说话，语言力求简洁。最后，报道中要有亮点，能引人深思或能让人产生强烈的兴趣。

请阅读下面一则关于刘翔获得奥运金牌的体育报道,并试着找出这则新闻报道的标题、 导语和主体：

Liu Xiang：Dark Horse in the Athens Olympics

Liu Xiang , born on July 13, 1983 in Shanghai, China, is a Chinese hurdling athlete.

In 2002, Liu launched his career in fine style by winning the first IAAF (国际业余田径联合会) Grand Prix in Lausanne with a world youth and Asian record time of 13.12 seconds in the 110 metres hurdles.

He has since made the finals at the IAAF World Championships in Athletics and IAAF World Indoor Championships in Athletics. Two of the three cases has seen American hurdling great Allen Johnson take the major prize, but in the last in May at Osaka, Liu managed to beat Johnson with an Asian-record time of 13.06 seconds.

Still young, Liu has improved steadily, and won a gold medal at the 2004 Summer Olympics in the 110 meters hurdles event. In the final, he equaled the world record of 12.91 seconds held since 1993 by Colin Jackson of Wales. This is the first time an athlete of non-African descent (后裔) has dipped under 13 seconds for the 110 meter hurdles.