一、泛听建议：

　　1、完整听一遍，掌握大意。

　　2、继续听，特别注意关键信息。遇到相似的词，写下来。

　　Americans posing to remember where there were 50 years ago today when the country _1_ a president. Speaking at a ceremony near the site where John F Kennedy, the nation's 35th president, was felled by an assassin's bullet on Nov 22nd, 1963, Dallas mayor Michael Rawlings says it was an event that stun the nation.

　　美国人要记住他们50年前的今天的样子，当时美国失去了一位总统。美国第35任总统约翰·肯尼迪于1963年11月22日遭遇暗杀者的枪击，今天在暗杀地附近举行了一场纪念仪式，达拉斯市长迈克尔·罗林斯表示，这是一起震惊全美的事件。

　　"A new era dawn and another wind a half century ago when hope and hatred collided right here in Dallas, we watch the nightmarethrough reality that in our front yard our president had been taken from us."

　　“半个世纪以前，新时代到来，旧时代消逝，希望和怨恨在达拉斯交织，我们看到了现实中的噩梦，我们的总统在我们眼前被杀害。”

　　New marker _2_ at the site Dealey Plaza where the assassination _3_ featuring the last paragraph of a speech the president intended to deliver that night. More events are also held in other major US cities _4_ Boston and Washington today.

　　他在遇刺案发生地迪利广场，宣读了肯尼迪遇刺当天原定演讲中的最后一段演说。今天，包括波士顿和华盛顿在内的美国主要城市都举行了纪念仪式。

　　词汇解析：

　　1、stun

　　vt. 使震惊；打昏；给以深刻的印象

　　n. 昏迷；打昏；惊倒；令人惊叹的事物

　　eg:He's stunned by today's resignation of his longtime ally.

　　他被自己的长期助手今天的辞职所震惊。

　　eg:When they told me she was missing I was totally stunned.

　　当他们告诉我她不见了时，我完全惊呆了。

　　2、nightmare

　　n. 恶梦；梦魇般的经历

　　adj. 可怕的；噩梦似的

　　eg:All the victims still suffered nightmares.

　　所有的受害者仍为恶梦所扰。

　　参考答案：

　　1、lost 2、was unveiled

　　3、took place 4、including