听力原文： US President George W. Bush said that the United States will help train a new Afghan military but made clear he would not commit US troops to peacekeeping. He made the remark yesterday when meeting visiting Afghan leader Hamid Karzai. A reminder of the dangers facing US troops in Afghanistan came yesterday when the US military said one of its helicopters carrying 24 people crashed as it tried to land in rough terrain. Fourteen people were hurt. And on Monday, six fighters loyal to the Saudi-born militant Osama Bin Laden were killed in a hail of bullets and grenades when Afghan troops, supported by US forces, stormed a hospital in the southern city of Kandabar after a long standoff. After months of intensive searching, the whereabouts of Bin Laden, accused mastermind of the September 11 attacks on the United States that killed more than 3,000 people, remain unknown. But America's CBS News said in a report on Monday he underwent kidney dialysis in a Pakistani military hospital the day before the US attacks. In Washington, Bush told Karzai he would not commit troops to a peacekeeping force, instead helping a British-led force in Kabul with intelligence and logistics. Karzai, the first Afghan leader to visit Washington since former king Zahir Shah in 1963, pledged his support for America's war on terrorism. According to the news, US will not send peacekeeping troops to Afghanistan but it will