【正文】 be said to be that of [A] frustration [B] indifference[C] amazement[D] opposition Text 4 Nancy Casey was born in Chicago， Illinois， and left when she was three years old. Her family moved to Iowa and lived on 900 acres of farmland， where Nancy trained horses and ponies and helped raise all kinds of farm animals. Nancy loved animals then， and still has a big place in her heart for them. She currently has two Siamese cats， Misha and Iman. At sixteen years old， Nancy39。s true that just about every cell in the body has the instructions to make a plete human， most of those instructions are inactivated， and with good reason： the last thing you want for your brain cells is to start churning out stomach acid or your nose to turn into a kidney. The only time cells truly have the potential to turn into any and all body parts is very early in a pregnancy， when so called stem cells haven39。s hearing revolved around [A] the precise capabilities of spy satellites in orbit [B] NASA39。s Comments on Columbia Accident [B] An Inquiry into Columbia Accident [C] Shedding Light on Shuttle39。re not quite so happy with the process.” The investigative board already had remended that NASA push for better coordination between the space agency and military offices in charge of satellites and telescopes. The . National Imagery and Mapping Agency in March agreed to regularly capture detailed satellite images of space shuttles in orbit. Still， Gehman said it was unclear whether even images from America39。s senior shuttle managers and administrators to reject offers of satellite images of possible damage to Columbia39。s left wing. Gehman told reporters after the hearing that answers to these important questions could have enormous impact， since they could place in a different context NASA39。t know in much detail how the changes in our eyes give rise to sensation. But there is every reason to think that as we learn more about the physiology of the brain， we shall do so， and that the great philosophical problems about knowledge are going to be pretty fully cleared up. But if our descendants know the answers to these questions and others that perplex us today， there will still be one field of which they do not know， namely the future. However exact our science， we cannot know it as we know the past. Philosophy may be described as argument about things of which we are ignorant. And where science gives us a hope of knowledge it is often reasonable to suspend judgment. That is one reason why Marx and Engels quite rightly wrote to many philosophical problems that interested their contemporaries. But we have got to prepare for the future， and we cannot do so rationally without some philosophy. Some people say we have only got to do the duties revealed in the past and laid down by religion， and god will look after the future. Other say that the world is a machine and the course of future events is certain， whatever efforts we may make. Marxists say that the future depends on ourselves， even though we are part of the historical process. This philosophical view certainly does inspire people to very great achievements. Whether it is true or not， it is powerful guide to action We need a philosophy， then， to help us to tackle the future. Agnosticism easily bees an excuse for laziness and conservatism. Whether we adopt Marxism or any other philosophy， we cannot understand it without knowing something of how it developed. That is why knowledge of the history of philosophy is important to Marxists， even during the present critical days. 21. What is the main idea of this passage？ [A] The main idea of this passage is the argument whether philosophy will ultimately be solved by science or not. [B] The importance of learning philosophies， especially the history of philosophy. [C] The difference between philosophy and science. [D] A discuss about how to set a proper attitude towards future. 22. The example of what Plato thought in the passage shows that [A] the development of science really can solve a great many of the problems on which philosophers still argue [B] plato knew nothing about Physics [C] the scientists have achieved a lot in terms of light theory [D] different people have different ways of perception 23. What field can our descendants know？ [A] The origin of human beings [B] Some questions that perplex us today. [C] Many philosophical problems which Marx and Engels wrote rather little. [D] The future. 24. How many kinds of ideas are there about the future？ [A] Two [B] Three [C] Four [D] Five 25. What are the functions of studying philosophies mentioned in the passage？ [A] The study of philosophies would make our own idea flexible. [B] The study of philosophies would help prepare us for the future and guide our actions. [C] The study of philosophies would enable us to understand how things develop as to better tackle the future. [D] All of the above. Text 2 This line of inquiry did not begin until earlier this month— more than three months after the accident— because there were “too many emotions ， too many egos， ” said retired Adm. Harold Gehman， chairman of the Columbia Accident Investigation Board. [an error occurred while processing this directive] Testifying before the Senate Commerce Committee， Gehman said this part of his inquiry was in its earliest stages， starting just 10 days ago. But Gehman said he already has concluded it is “inconceivable” that NASA would have been unable or unwilling to attempt a rescue for astronauts in orbit if senior shuttle managers and administrators had known there was fatal damage to Columbia39。s wing shortly after liftoff， allowing superheated air to perate the wing during its fiery reentry on ， melt it from inside