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1、2009年全国职称英语等级考试真题及答案理工类（B级）第1部分：词汇选项（第115题，每题1分，共15分）下面每个句子中均有1个词或短语划有横线，请为每处划线部分确定1个意义最为接近的选项。1 Would you please call my husband as soon as possible？A visit B phoneC consult D invite2 We had a long conversation about her parents.A speech B questionC talk D debate3 The chairman proposed that we stop
2、 the meeting.A stated B announcedC demanded D suggested4 Obviously these people can be relied on in a crisis.A lived on B depended onC believed in D joined in5 There is always excitement at the Olympic Games when an athlete breaks a record.A beats B maintainsC matches D tries6 All the pupils seem to
3、 be very cheerful.A happy B healthyC naughty D busy7 The traditional paintings are exhibited on the second floor.A laid B displayedC kept D stored8 She stood there，shaking with fury.A misery B laughterC anger D cry9 Mary evidently is the most diligent student among usA intelligent B beautifulC talka
4、tive D hardworking10 Persistent attempts to interview Garbo were fruitless.A Forceful B ReasonableC Continuous D Firm11 Why cant you stop your eternal complaining？A everlasting B longC temporary D boring12 Hundreds of buildings were wrecked by the earthquake.A shaken B damagedC fallen D jumped13 The
5、se paintings are considered by many to be authentic.A faithful B royalC genuine D sincere14 Many economists have given in to the fatal lure of mathematics.A attraction B simplicityC power D rigor15 Ten years after the event，her death still remains a puzzleA mist B fogC mystery D secret第2部分：阅读判断（第162
6、2题，每题1分，共7分）下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A；如果该句提供的是错误信息，请选择B；如果该句的信息文中没有提及，请选择C.Radiocarbon DatingNowadays scientists can answer many questions about the past through a technique called radiocarbon（放射性碳），or carbon-14，dating. One key to understanding how and by something happened i
7、s to discover when it happened.Radiocarbon dating was developed in the late 1940s by physicist Willard F. Libby at he University of Chicago. An atom of ordinary carbon，called carbon-12，has six protons（中子）and six neutrons（质子）in its nucleus. Carbon-14，or C-14，is a radioactive，unstable form of carbon t
8、hat has two extra neutrons（原子核）。 It returns to a more stable form of carbon through a process called decay（衰减）。 This process involves the loss of he extra neutrons and energy from the nucleus.In Libbys radiocarbon dating technique，the weak radioactive emissions（放射）from his decay process are counted
9、by instruments such as a radiation detector and counter. he decay rate is used to determine the proportion of C-14 atoms in the sample being dated.Carbon-14 is produced in the Earths atmosphere when nitrogen（氮）-14，or N-14，interacts with cosmic rays（宇宙射线）。 Scientists believe since the Earth was forme
10、d，the mount of nitrogen in the atmosphere has remained constant. Consequently，C-14 formation is thought to occur at a constant rate. Now the ratio of C-14 to other carbon toms in the atmosphere is known. Most scientists agree that this ratio is useful for dating items back to at least 50，000 years.A
11、ll life on Earth is made of organic molecules（分子）that contain carbon atoms coming from the atmosphere. So all living things have about the same ratio of C-14 atoms to other carbon atoms in their tissues（组织）。 Once an organism（有机体）dies it tops taking in carbon in any form，and the C-14 already present
12、begins to decay. Over time the amount of C-14 in the material decreases，and the ratio of C-14 to other carbon toms goes down. In terms of radiocarbon dating，the fewer C-14 atoms in a sample，the older that sample is.16 Nowadays many scientists depend on radiocarbon for dating age-old objectsA Right B
13、 Wrong C Not mentioned17 The radiocarbon dating technique is only about 40 years oldA Right B Wrong C Not mentioned18 An atom of ordinary carbon has six protons and eight neutronsA Right B Wrong C Not mentioned19 Radar is used to determine the characteristics of radiocarbonA Right B Wrong C Not ment
14、ioned20 Radiocarbon is reliable in dating an object back to at least 50，000 years.A Right B Wrong C Not mentioned21 The C-14 in an organism begins to decay when it diesA Right B Wrong C Not mentioned22 The half-life of C-14 is about 25，000 years.A Right B Wrong C Not mentioned第3部分：概括大意与完成句子（第2330题，每
15、题1分，共8分）下面的短文后有2项测试任务：（1）第2326题要求从所给的6个选项中为第14段每段1选择个最佳标题；（2）第2730题要求从所给的6个选项中为每个句子确定1个最佳选项。Chimpanzees1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）。 If the present rate of hunting and habitat（栖息地）destruction continues，then within 20 years，there will be no chimpanzees living in the wild. But this is more than an environmental or moral tragedy（悲剧）。 Chimpanzee extinction may also have profound implications（含意）for the survival of their distant relatives - human beings.2 In 1975 the biologist
