【正文】 that atomic clock will be . A. more precise B. absolutely accurate C. more durable D. indestructible …… . …… One such atomic clock is so accurate ……… . It will be of great importance in fields such as astronomical observation and longrange navigation. ……… 13. Which of the following is not mentioned in the passage as to the usage of atomic clock? A. Scientific research. B. Astronomical observation. C. To check Einstein’s relativity theory. D. Long range navigation. An atomic clock …… .. may be used to check the accuracy of predictions based on Einstein’s relativity theory,……. Placed in an orbiting satellite moving at a speed of 18000 miles an hour, the clock could broadcast its time reading to a ground station, …… . 14. Which of the following is implied but not stated? A. Precise timekeeping is essential in science. B. Scientists expect to disprove Einstein’s relativity theories. C. Atomic clocks will be important in space flight. D. The rate of vibration of an atom never varies. 15. An appropriate title for this passage would be . A. A Peacetime Use of the Atom B. Atoms and Molecules C. The Satellite Timekeepers D. The Role of the Clock Passage 4 In munities north of Denver, residents are pitching in to help teachers and administrators as the Vrain school District tries to solve a $ million budget shortage blamed on mismanagement. 5 16. What has happened to the Vrain School District? A. A huge financial problem has arisen. B. Many schools there are mismanaged. C. Lots of teachers in the district are planning to quit. D. Many administrative personnel have been laid off. “We’re worried about our teachers and principals, and we really don’t want to lose them because of this.” One parent said. “If we can help ease their financial burden, we will.” 17. How did the residents in the Vrain School District respond to the budget shortage? A. They felt somewhat helpless about it. B. They accused those responsible for it. C. They pooled their efforts to help solve it. D. They demanded a thorough investigation. ……… ..The 2200student district discovered the shortage last month. “It’s extraordinary. Nobody would have imagined something happening like this at this level.” Said State Treasurer Mike Coffman 18. In the view of State Treasurer Mike Coffman, the educational budget shortage is . A. unavoidable B. unthinkable C. insolvable D. irreversible ……District officials ……. At Coffman’s request, the District Attorney has begun investigating the district’s finances. Coffman says he wants to know whether district officials hid the budget shortage …… 19. Why did Coffman request an investigation? A. To see if there was a deliberate coverup of the problem. B. To find out the extent of the consequences of the case. C. To make sure that the school principals were innocent. D. To stop the voters approving the $ 212 million bond issue. …… ..At Creek High School, three students started a website that displays newspaper articles, district information and an forum (論壇 ). “Rumors about what’s happening to the district are moving at lighting speed.” said a student. “We wanted to know the truth, and spread that around instead.” 20. Three high school students started a website in order to . A. attract greater public attention to their needs B. appeal to the public for contributions and donations C. expose officials who neglected their duties D. keep people properly informed of the crisis 6 P324P3（醫(yī)學(xué)上的冷藏術(shù)） 9 月 28 號 Without a blood supply ans deteriorate rapidly. ... 31. The word “deteriorate” A) die B) cool C) worsen Organs differ in their sensitivity to damage. At body temperature, permanent destruction of the brain occurs after more than three to five minutes。 of the heart, liver and lung, after 10 to 30 minutes。 of the kidney(腎 )， after 50 to 100 minutes。 and of the skin, after 6 to 12 hours. A) kidney is one of the most delicate B) brain is more delicate D) many people are w Although the shorter the time the an is deprived of its blood supply the better, the cornea(角膜 )can be removed for grafting(移植 )at relative leisure, but …. 34. Which of the following ans can survive the longest? A) Livers B) Lungs C) Hearts … .For a kidney to be preserved from 48 to 72 hours, a plicated machine is required to provide artificial circulation. To keep a kidney undamaged for longer than 72 hours is difficult. Blood cells, spermatozoa(精子 )and certain other dissociated tissue cells can be frozen to subzero temperatures and kept alive indefinitely. 35. A) can help preserve kidneys without d Special preserving fluids will prevent cell destruction by icecrystals, but these fluids have damaging effects if introduced into whole ans 33. B) A dead kidney can be made to live after blood is reinfused into its blood ve 7 P320P4（雪崩） Death es quickly in the mountains. Each winter holidaymakers are caught unconscious as they happily ski away from the fixed runs, little realizing that a small avalanche can send them crashing in a bonebreaking fall down the slope and leave them buried under tons of crisp white snow. … .. 51. Each winter holiday makers in the mountains e face to face with death because ___ . A. they fail to realize how dangerous avalanches can be B. they are not expert enough at skiing on the fixed runs C. they are trying to avoid areas where avalanches happen D. they ski great distances down the mountainsides The snow in the Salzburg of Austria, where a recent disaster to