单选题[此试题无题干]

单选题[此试题无题干]

单选题 For the first time in history, evolution has taken a backseat. There is an ongoing realization that human beings are capable of directly shaping their own evolution. As we case into the twenty-first century, we realize that genetic engineering is undoubtedly going to have a dramatic {{U}}(67) {{/U}} on our lives. It seems that with genetic engineering, science has moved from {{U}}(68) {{/U}} the natural world to redesigning it. Now we must ask ourselves {{U}}(69) {{/U}} this influence will be for better or for worse. However, scientists remain {{U}}(70) {{/U}} in their opinions. Some have {{U}}(71) {{/U}} against the hazards of genetic engineering, {{U}}(72) {{/U}} others have dismissed these perils as inconsequential. Lewis Wolpert, professor of biology at University College London, says, "There are no ethical {{U}}(73) {{/U}} because you are not doing any {{U}}(74) {{/U}} to anyone." And the gist of his statement is staunchly supported by James Watson, a Nobel Prize winner. "If we can make better human beings by knowing how to change {{U}}(75) {{/U}} , why shouldn't we do it?" They are both extremely {{U}}(76) {{/U}} of excuses that genetic engineering is a bad idea. {{U}}(77) {{/U}} , two other prominent scientists have {{U}}(78) {{/U}} their displeasure about genetic engineering. They have made no {{U}}(79) {{/U}} of the rather strong and true feelings {{U}}(80) {{/U}} genetic engineering. George Wald, Nobel Prize winning biologist wrote recombinant DNA technology {{U}}(81) {{/U}} our society with unprecedented problems in the history of science. It places in human hands the {{U}}(82) {{/U}} to redesign living organisms, the {{U}}(83) {{/U}} of some three billion years of evolution. It is happening too fast. It {{U}}(84) {{/U}} probably the largest ethical problem, for going {{U}}(85) {{/U}} in this direction may be not only unwise but {{U}}(86) {{/U}} .

单选题A special feature of education at MIT is the opportunity for students and faculty to ______ together in research activities. A. specialize B. participate C. consist D. involve

单选题 Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each questionthere will be a pause. During the pause, you must read the four choices marked , and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the center.

单选题A．Sheisboredwiththework.B．Shehasnothingtodo.C．Sheiswillingtodonothing.D．Shefeelsgoodatdealingwithpaperwork.

单选题Questions 9 to 11 are based on the conversation you have just heard.

单选题A) over C) our ofB) away from D) beyond

单选题 Questions 22 to 25 are based on the passage you have just heard.

单选题A) that C) when B) so D) then

单选题After many attempts she ______ managed to get promotion.

单选题The worse situation in the property market can be shown by ______.

单选题From early youth, Karl Marx had ______ his memory by memorizing verses in an unfamiliar tongue.