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The sensational news a couple of years ago that scientists had cloned a sheep sent academics and the public into a panic at the prospect that humans might be next. That is a (62) reaction. Cloning is a (63) challenge to the most fundamental laws of biology, (64) it is not unreasonable to be (65) that it might threaten human society and dignity. Yet much of the ethical opposition seems also to grow out of an unthinking disgust—sort of "yuck(令人厌恶的事物)factor. " And that makes it hard for even (66) scientists and ethicists to (67) the matter clearly. While human cloning might not offer great benefits to humanity, no one has yet made a persuasive (68) that it would do any real harm, (69) .Theologians (神学专家) (70) that to clone a human would (71) human dignity. That would surely be true if a cloned individual were treated as a (72) being, with fewer rights or lower (73) . But why suppose that cloned persons wouldn’t share the same rights and dignity as the rest of us A leading ethicist has suggested that cloning would violate the "right to genetic identity." (74) did he come up with such a right It makes perfect (75) to say that adult persons have a right not to be cloned without their voluntary, informed consent. But if such consent is given, whose "right" to genetic identity would be violatedMany of the science fiction scenarios(剧情) (76) by the prospect of human cloning turn out, (77) reflection, to be absurdly improbable. There is the fear, for instance, that parents might clone a child to have "spare parts" (78) the original child needs an organ (79) . But parents of (80) twins don’t view one child (81) an organ farm for the other. Why should cloned children’s parents be any different 79（）
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The sensational news a couple of years ago that scientists had cloned a sheep sent academics and the public into a panic at the prospect that humans might be next. That is a (62) reaction. Cloning is a (63) challenge to the most fundamental laws of biology, (64) it is not unreasonable to be (65) that it might threaten human society and dignity. Yet much of the ethical opposition seems also to grow out of an unthinking disgust—sort of "yuck(令人厌恶的事物)factor. " And that makes it hard for even (66) scientists and ethicists to (67) the matter clearly. While human cloning might not offer great benefits to humanity, no one has yet made a persuasive (68) that it would do any real harm, (69) .Theologians (神学专家) (70) that to clone a human would (71) human dignity. That would surely be true if a cloned individual were treated as a (72) being, with fewer rights or lower (73) . But why suppose that cloned persons wouldn’t share the same rights and dignity as the rest of us A leading ethicist has suggested that cloning would violate the "right to genetic identity." (74) did he come up with such a right It makes perfect (75) to say that adult persons have a right not to be cloned without their voluntary, informed consent. But if such consent is given, whose "right" to genetic identity would be violatedMany of the science fiction scenarios(剧情) (76) by the prospect of human cloning turn out, (77) reflection, to be absurdly improbable. There is the fear, for instance, that parents might clone a child to have "spare parts" (78) the original child needs an organ (79) . But parents of (80) twins don’t view one child (81) an organ farm for the other. Why should cloned children’s parents be any different 65（）
It has become urgent that ______ (政府重视地区经济的平衡发展)．
______ (既然给了这么好的一个机会)，he planned to stay with the job for the time being．
The United States has a major problem on its hinds. True, Britain is facing a similar problem, but for the time being it is in America that it is graver. The only way to solve it is through education. Negroes (黑人) should know about the contributions that black individuals and groups have made towards building America. This is of vital importance for their self-respect; and it is perhaps even more important for white people to know. For if you believe that a man has no history worth mentioning, it is easy to assume that he has no value as a man.Many people believe that, since the Negro’s achievements do not appear in the history books, he did not have any. Most people are taken aback when they learn that Negroes sailed with Columbus, marched with the Spanish conquerors of South America and fought side by side with white Americans in all their wars. People are astonished when you tell them about Phillis Wheatley, who learned English as a salve in Boston and wrote first-class poetry. They have never heard of Benjamin Banneker, a mathematician and a surveyor, who helped to plan the city of Washington. There has been a tendency all along to treat the black man as if he were invisible. Little has been written about the 5,000 American Negroes who fought in the Revolution against the British, but they were in every important battle. In the Anglo-American War of 1812, at least one out of every six men in the U.S. Navy was a Negro. In the Civil War, more than 200,000 black troops fought in the Union forces.How, then, did the image of the Negro as a valiant fighting man disappear To justify the hideous institution of slavery, slave-holders had to create the myth of the docile, slow-witted Negro, incapable of self-improvement, and even contented with his lot. Nothing could be further from the truth. The slave fought for his freedom at every chance he got, and there were numerous uprisings. Yet the myth of docility persisted.There are several other areas where the truth has been twisted or concealed. Most people have heard of the Negro, Carver, who invented scores of new uses for the lowly peanut. But whoever heard of Norbert Rillieux, who in 1846 invented a vacuum pan that revolutionized the sugar-refining industry Or of Elijah McCoy, who in 1872 invented the drip cup that feeds oil to the moving parts of heavy machinery How many people know that Negroes are credited with inventing such different items as ice creams, potato chips, the gas mask and the first traffic light Not many.As for the winning of the West, the black cowboy and the black frontiersman have been almost ignored, though film producers are becoming more aware of their importance. Yet in the typical trail crew of eight men that drove cattle from Texas to Kansas, at least two would have been Negroes. The black troops of the Ninth and Tenth Cavalry formed one-fifth of all the mounted troops assigned to protect the frontier after the Civil War. "What difference does it make" you may ask. A lot. The cowboy is the American folk-hero. Youngsters identify with him instantly. The average cowboy film is really a kind of morality play, with good guys and bad guys and right finally triumphing over wrong. You should see the amazement and happiness on black youngsters’ faces when they learn that their ancestors really had a part in all that. Black youngsters are happy to see Negroes on the screen because they are （）.
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