16.??Hemingway was born in 1899 in Oak Park,Illinois,a prosperous suburb of Chicago.His father,a physician,was an enthusiastic hunter and fisheman who taught his son to handle a rod and a gun.Hemingway's respect for these skills and his lov...

11.??While I was working as a child psychologist,a principal phoned me."I'm baffled,"he said."A child has written an essay called ‘The Properties of the Nucleus.’"His teacher can't understand it.Neither can I."I went to the school and met...

6.??From there, 3 days of magnificent (trekking) through great scenery had brought us to the village of Kumjung. A. travelling B. sightseeing C. palying D. driving ...

1.??His mind had grown suddenly (numb) seconds seemed hours. A. acute B. insensitive C. indifferent D. painful ...

16.??Although American civilization took over and replaced the frontier almost a century ago,the heritage of the frontier is still very much alive in the U.S.today.The idea of the frontier still stirs the emotions and imaginations of the Am...

11.??New measurements taken from sleeping people explain,at least in part,why dreams tend to have such bizarre but vivid storylines.The findings deal a blow to the Freudian interpretation of dreams but leave open the possibility that some u...

6.??At the 1908 Olympics in London the Marathon race was held on a very hot day.The race started at Windsor Castle,one of the homes of the Royal Family,so that the Royal children could see the runners leave.The race was planned to continue ...

1.??Most Americans think that ice cream is as American as baseball and applepie.But ice cream was known long before American was discovered.The Roman emperor Nero may have made a king of ice cream.He hired hundreds of men to bring snow and ...

16.??In 1989,Melissa started Kids F.A.C.E.as an after-school club at her elementary school.The six-member group met each Monday to write letters and plan cleanup activities."We never thought it was anything more than a group of kids coming ...

11.??Astronomers（天文学家） can tell just how hot the surface of the moon gets.The side of the moon toward the sun gets two degrees hotter than boiling water（沸水）.The night side reaches 243 degrees below zero（零度）.In an eclipse（月蚀...