考试中的听力理解部分历来是中国学生的薄弱环节。自六级改革后，听力部分所占比例由原来的20%升至35%。这时我们就需要去做一些六级听力模拟题，一起来看一下这篇14年12月20日英语六级听力模拟题吧!
Michelle Howard received her fourth star at a ceremony at Arlington National Cemetery with her family and fellow servicemen looking on.
"If you don't believe today was the first - when I called to order, a four-star shoulder board for women - they didn't exist. [A] special contract was let and you folks are seeing the first set in the history of the United States Navy," said Howard.
Secretary of the Navy Ray Mabus was the promoting officer.
"The Navy picked the best officer to be the VCNO. That's the only thing that happened here today," said Mabus.
Since 1982, when she graduated from the U.S. Naval Academy, Howard has achieved many historic "firsts" in her career. She was the first African-American woman to achieve three-star rank in the U.S. Armed Forces, as well as being the first woman to achieve the rank of admiral in the Navy. She also was the first African-American woman to command a naval ship.
Chief of Naval Operations Jonathan Greenert said the honors mean extra obligations.
“She will bear the burden of a role model, and she is ready to bear that very well, and I am very excited about that because we need lots more women in the Navy,” said Greenert.
Howard was in the Pentagon during the September 11, 2001 terrorist attack, and in 2009 participated in the naval task force dispatched to rescue the U.S.-flagged merchant vessel Maersk Alabama and its captain Richard Phillips, who had been kidnapped by Somali pirates.