据报道，2011年7月28日，我国自行研究的“蛟龙号”载人潜水器成

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据报道，2011年7月28日，我国自行研究的“蛟龙号”载人潜水器成功完成第三次下潜科学考察与试验任务，最大下潜深度达到5188m．“蛟龙号”载人潜水器实现5000m级水深的突破，标志着我国成为世界上少数掌握大深度载人深潜技术的国家．潜水器下潜越深，受到的海水对它的压强越______；在海面下5000m深处它受到海水的压强是______Pa．（海水密度取1×10³kg/m³，g=10N/kg）

答案

①海水的密度不变，潜水器下潜越深，由公式p=ρgh知：受到的海水对它的压强越大；

②在海面下5000m深处，潜水器受到海水的压强是p=ρgh=1.0×10³kg/m³×10N/kg×5000m=5×10⁷Pa．

故答案为：大；5×10⁷．

完形填空

Anne Spencer Morrow was born in 1906 in Englewood, New Jersey. She went to Smith College in Northampton, Massachusetts. She wanted to become a __1_. She won two major prizes from the __2_for her writing.
Anne Morrow was a quiet, shy and small young woman when she __3__Charles Lindbergh in 1927. The 25-year- old man was tall and good-looking. Charles Lindbergh was one of ___4__ people in the world. He had just become the first person___5__ a plane alone across the Atlantic Ocean, from New York to Paris. Two years __6_, Anne and Charles Lindbergh were married. Reports about their___7__ were on the front pages of newspapers.
After her marriage to Charles Lindbergh, Anne became a pilot too. She began _8__many long airplane flights with her husband. The Lindberghs explored new ways to fly around the world. They seemed to enjoy the greatest _9__ that any young people could not have.
Then in 1932, something__10__happened.They were in great sorrow (痛苦).The Lindberghs’ _11_baby,twenty-month-old Charles, was kidnapped from their home in New Jersey. The body of the baby was discovered more than ten weeks later.
There were a huge number of reports about the case. Newspapers __12__it "the Crime of the Century”. After the trial（审判）, the Lindberghs found it __13__ to live in the United States. There were threats(威胁) on the life of their second child. And there were too __14__ newspaper stories about them. So Anne and Charles Lindbergh moved to Europe in 1935. Four years later they moved __15___ to the United States.
Anne Morrow Lindbergh never fully recovered from the death of her first child. Yet, she and her husband had five more children. She continued flying. In 1934, she became the first woman to win the National Geographic Society's Hubbard Gold Medal. She was honored for her exploration, research and discovery.

D．the most attractive

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单项选择题

2000年3月18日，当人们还沉浸在欢庆新春到来的喜悦之中的时候，______，刺骨的西北风携带着漫天飞旋的黄沙铺天盖地而来。阳光明媚、大地______的美好景象，______被遮天蔽日的沙尘罩上了一层厚厚的土黄色。太阳失去了往日的光辉，像一只灰色盘子悬挂在天空。
填入划横线部分最恰当的一项是( )。

A．突然
回春
顷刻
B．突然
复苏
顷刻
C．忽然
回春
立刻
D．忽然
复苏
立刻

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