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2008年职称英语考试理工类(C级)真题及答案
www.hrexam.com   更新时间:2010-12-05 点击: 【字体: 】 加入收藏 关闭本页
fter long hours at low-paying jobs,getting less on their plate hardly seems like a good deal.they live from paycheck(薪金支票)to paycheck,happy to save a little money for next year’s christmas presents.
  对不起,题目暂缺   
    第三篇sunspots
   it’s not surprising that sunspots(太[nextpage]阳黑子)were observed by ancient astronomers(天文学家).the largest sunspots on the sun can be seen without a telescope. it was not until the.invention of the telescope(望远镜)in the early 17th century, however,that systematic studies of sunspots could be undertaken.the great astronomer galileo was among the first to make telescopic observations of sunspots.
   sunspots are regions of extremely strong magnetic fields(磁场)found on the sun’s surface.a sunspot has a dark central core known as the umbra.the umbra is surrounded by a dark ring called the penumbra,where the magnetic field spreads outward.sunspots appear dark because they are giving off less radiation.they are cooler than the rest of the sun’s surface.
   sunspots are frequently observed in pairs or in paired groups.the members of a spot pair are identified as the leading spot and the following spot.they are identified by their position in the pair in terms of the direction in which the sun rotates(旋转).
   the number of sunspots at any one time varies。a large spot group may consist of as many as 1 0 groups and 300 spots across the sun.the number of spots changes in a fairly regular pattern called the sunspot cycle.the largest number occurs about every 11 years.at sunspot minimum,there are at most just a few small spots.
   the average lifetime of an individual spot group is roughly one solar rotation,which is about 25 days.the most persistent large spots,however,can survive for two to three months
   41. careful observations and systematic studies of sunspots
   a. were made by ancient astronomers.
   b. started in the early 17th century.
   c. were made by galileo only.
   d. could be made without a telescope.
   42. sunspots are cooler than the rest of the sun's surface because
   a. they produce less energy.
   b. they are buried in the sun.
   c. they are far away from magnetic fields.
   d. they are close to magnetic fields.
   43. the leading spot and the following spot are the names of
   a. two large sunspots.
   b. a large spot and a small spot.
   c. the two spots in a spot pair.
   d. the central core and the ring around it.
   44. if an intense sunspot activity-had occurred in 1857, the next one would have been in
   a. 1858.
   b. 1862.
   c. 1865.
   d. 1868.
   45. in the last paragraph the word "persistent" means
   a. important
   b. effective.
   c. enduring.
   d. visible.   

    第5部分:补全短文(第46~50题,每题2分,共10分)
  下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
  canada

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