①

An American biotech company has claimed that it has created the firsthum an embryos ever produced by cloning，provoking a storm of criticism and reigniting the ethical debate about the promises and dangers of biology's most controversial new technology．
ADVANCED CELL TECHNOLOG

1961年,美国当代文学重要代表之一、"黑色幽默"文学的杰出代表——约瑟夫·海勒(Joseph Heller)发表了小说《第二十二条军规》(Catch-22).
　　小说描写的是在第二次世界大战期间,美国第27飞行大队为配合意大利抗击纳粹德国的侵略而驻扎在地中海某海岛上的故事.小说的主人公尤索林(Yossarian)是一名上尉飞行员,随着战争加剧,他总担心自己会在空中战死,时刻感到自己的生命在受到威胁.极度的恐惧使他想通过证实自己精神失常而远离战场.因为根据部队的规定,任何发疯的人都必须回到地面.他的想法是对的.但是,军队的法令中有另一条规定,即第二十二条军规:任何想逃避作战责任的军人都不是真疯.这样一来,他别无选择,只能继续作战;如果他真的是精神失常,他就可以返

（A）
Charles Arntzen is convinced that the reddish，powdery substance he holds in his hand will make the world a safer place． Arntzen，an Arizona State University biologist，has been working for nearly five years to create what is basically freeze-dried tomato juice—

You and your parents can stop worrying—Edison，Darwin and lots more were far from being geniuses in their teens．
History books seldom mention it，but the truth is that many of our greatest figures were practically“beatniks” when they were teenagers． They were given to daydream-

By Cynthia M. Hamond
My mother isn't speaking to my father．She hasn't spoken to him in five years，and for that，my father is truly grateful．
I was crying last time she did speak to him．I saw the exchange though I could not he

Before the First World War，the dominant force in cinem a was European．The European filmmakers were the ones really experimenting with visual im agery and taking it to its limits．The Am ericans，admittedly， had DW Griffith ，an extraordinary filmmaker，but he was the exception rather than the rule in Hollywood．Fil

IT had been a long，hard，wonderful day．The two of us had walked from the sea's edge through the length of a beautiful valley，climbed a superb mountain，traversed its narrow ，rocky ridge，and now stood on its final peak，tired，happy and looking for the perfect camp site．
The exper

About ten years ago when I was an undergraduate in college，I was working as an intern①at my University's Museum of Natural History②．One day while w orking at the cash register in the gift shop，I saw an elde rly couple come in w ith a little girl in a w hee lchair．

On Saturday afternoon，I was on the way to the largest bookstore as usual，where I kept it a good habit to bury myself in mountains of books．Though merely a small corner was available，I felt myself on top of the world as long as I was reading．Today I was especiall

Fifteen months ago，Paul Ruscavich lay on the hospital bed with bandages wrapped around his head from crown to the nostrils，his body swollen to about twice its normal size．Nurses and doctors came and went，pricked him with hypodermic（1）needles，asked him questions，shook his arms，as machines gurgled（2）and hummed．P

The shirt has been a common piece of clothing for men and women for a great many centuries. Some of the expressions made from the word are as old, and as common, as the sh

By Alfred, Lord Tennyson

By Ben Jonson

Never handle firearms carelessly. The sorrow and suffering that have been caused through the innocent but heedless11 handling of firearms by the young! Only four days ago,