| 查看: 4581 | 回复: 99 | |||
| 【奖励】 本帖被评价94次，作者123职称英语增加金币 74 个 | |||
[资源]
【真题资源】2012年职称英语考试理工类B级真题与答案
|
|||
2012年职称英语考试理工类B级真题与答案  第2部分 阅读判断 Eastern Quakes Can Trigger Big Shakes In the first week of November 2011,people in central Oklahoma experienced more than two dozen earthquakes. The largest, a magnitude（量）5.6 quake, shook thousands of fans in a college football stadium, caused cracks in a few buildings and scared many people who had never felt a quake before. Oklahoma is not an area of the country famous for its quakes. If you watch the news on TV, you see reports about all sorts of natural disasters. But the most dangerous type of natural disaster, and also the most unpredictable, is the earthquake. Researchers at the US Geological Survey（USGS）estimate that several million earthquakes occur globally each year. That may sound scary, but people don’t feel many of them because they happen in remote and unpopulated regions. Many quakes happen under the ocean, and others have a very small magnitude. Scientists know about small, remote quakes only because of very sensitive electronic devices called seismometers（地震仪）. These devices detect and measure the size of ground vibrations（震颤）produced by earthquakes. Altogether, USGS researchers use seismometers to identify and locate about 20000 earthquakes each year. Although earthquakes can happen anywhere in the world, really big quakes occur only in certain areas. The largest ones register a magnitude 8 or higher and happen, on average, only once each year. Such big ones typically occur along the edges of Earth’s tectonic plates（构造板块）. Thctonic plates are huge pieces of Earth’s crust（外壳）, sometimes many kilometers thick. Often, edges of these plates temporarily lock together. When plates push and scrape（擦）past each other earthquakes occur. www.123zcyy.com On average, tectonic plates move very slowly--bout the same speed as your fingernails grow. But sometimes earthquakes rumble（轰轰作响）through portions of the landscape far from a plate’s edges. Although less expected, these “mid-plate” small earthquakes can be stantial damage. Some of the biggest known examples hit the eastern half of the United States two centuries ago. Today, scientists are still puzzling over why the quakes occurred and when similar ones might occur. 16. Oklahoma is an area often experiencing natural disasters. A. Right B.Wrong C. Not mentioned 17. The earthquake is the most unpredictable natural disaster. A. Right B.Wrong C. Not mentioned 18. Few earthquakes happen without people’s awareness. A. Right B.Wrong C. Not mentioned 19. Seismometers can identify and locate most of the earthquakes in China. A. Right B.Wrong C. Not mentioned 20. Big earthquakes of a magnitude 8 or higher seldom happen far from the edges of tectonic plates. A. Right B.Wrong C. Not mentioned 21. Whenever tectonic plates move, earthquakes happen. A. Right B.Wrong C. Not mentioned 22. The earthquake that hit the eastern half of the United States two centuries ago is the biggest”mid-plate” one in history. A. Right B.Wrong C. Not mentioned 第3部分 Learn about Noble Gases（惰性气体） 1 Have you ever ridden on a balloon? Many tourist spots offer balloon rides in order for people to see the beauty of a place from above. A balloon contains a noble gas called hellum（氦）. Formerly, balloons contained hydrogen but hydrogen is very flammable and dangerous when uncontrolled. Therefore, people shifted to helium, which is safer. Helium is safe because it has the properties of the noble gases. 2 People once belleved that noble gases couldn’t chemically react at all. For this reason, they were called inert gases（惰性气体）. They were also listed under Group 0 in the old periodic table because scientists believed that the gases have zero valence（价）electrons in their outer shell. This was later proven to be untrue when some noble gas compounds were discovered. 3 The gases are elements, which share similar properties. These properties include being monoatomic, colorless, odorless, being able to conduct electricity, and having low chemical reactivity. Noble gases include Helium, Neon, Argon, Krypton, Xenon and Radon. These are all found in Group 18, in the rightmost column of the periodic table. If you look at the periodic table, you will notice that these elements are the only ones, which do not have a charge. Helium has the lowest molecular（分子的）weight while Radon is the heaviest. 4 Remember that chemical reactions occur because atoms have valence electrons, which are electrons in their outer shell. When the outer shell is “unfilled” or the required number of electrons is not yet complete, the atom is more reactive. Noble gases have a full outer shell, meaning that they have complete electrons in their outer shell. This complete number varies. For instance, the outer shell of Helium has 2 valence electrons while the outer shell of Xenon has 8 electrons. Nowadays, there remains to be a few noble gases because of the low chemical reactivity of these said gases. 5 because of their properties, noble gases have many important applications. They are widely used in medicine and industries. For instance, liquid Helium is used for superconducting magnets（磁体）. These magnets are very important in physics and medicine. When a doctor suspects that a person’s brain has been damaged, he might request for Magnetic Resonance Imaging(MRI). MRI allows the doctor to “see” the brain, without operating on the patient.[ Last edited by ANDPing on 2012-4-19 at 20:53 ] |
回复此楼» 本帖附件资源列表
-
欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com - 附件 1 : 2012年职称英语理工类B级真题及答案.doc
2012-04-19 16:04:42, 84 K
» 收录本帖的淘帖专辑推荐
 好东东 |
» 本帖已获得的红花（最新10朵）
sunshinegirl» 猜你喜欢
085600 295分求调剂
已经有14人回复
-
环境工程297分求调剂一志愿杭高院
已经有3人回复
-
理学07化学 303求调剂
已经有7人回复
-
290分调剂求助
已经有6人回复
-
362求调剂
已经有6人回复
-
求调剂推荐 材料 304
已经有17人回复
-
304求调剂
已经有4人回复
-
张芳铭-中国农业大学-环境工程专硕-298
已经有8人回复
-
070300化学354求调剂
已经有12人回复
-
08工科，295，接受跨专业调剂
已经有3人回复
» 本主题相关商家推荐: (我也要在这里推广)
» 本主题相关价值贴推荐，对您同样有帮助:
- 厦门大学2012考博成绩以及考试科目，忐忑中
已经有104人回复
- 【真题资源】06-11英语职称考试综合B真题及答案！
已经有35人回复
- 08~10年全国职称英语理工类（B）考试真题
已经有8人回复
- 【讨论】职称英语考试国家指定教材是那个版本的？
已经有7人回复
- 职称英语考试A/B/C如何选择？
已经有13人回复
2楼2012-04-19 20:50:31
5楼2012-06-10 15:12:14
7楼2012-06-29 15:27:06
10楼2012-09-04 20:43:58
19楼2012-12-05 12:16:24
37楼2013-01-15 22:32:55
,好资源~~谢谢 38楼2013-01-18 10:27:36
|
本帖内容被屏蔽 |
41楼2013-02-16 13:19:20
44楼2013-02-25 11:53:50
简单回复
liaodf3楼
2012-04-22 00:30
回复
三星好评 顶一下，感谢分享！
2012-04-26 01:51
回复
五星好评 顶一下，感谢分享！
2012-06-25 12:53
回复
五星好评 顶一下，感谢分享！
2012-07-21 16:47
回复
五星好评 顶一下，感谢分享！
2012-07-25 09:04
回复
五星好评 顶一下，感谢分享！
gao200413011楼
2012-10-08 08:29
回复
五星好评 顶一下，感谢分享！
2012-10-22 15:53
回复
五星好评 顶一下，感谢分享！
suhuazhang13楼
2012-10-23 12:29
回复
五星好评 顶一下，感谢分享！
abao21014楼
2012-10-29 22:01
回复
五星好评 顶一下，感谢分享！
ye606pop15楼
2012-10-29 23:16
回复
五星好评 顶一下，感谢分享！
20072005mhn16楼
2012-11-04 19:24
回复
五星好评 顶一下，感谢分享！
yshq511717楼
2012-12-03 11:39
回复
五星好评 顶一下，感谢分享！
jingxi28818楼
2012-12-05 12:13
回复
三星好评 顶一下，感谢分享！
oixinxin20楼
2012-12-07 10:47
回复
五星好评 顶一下，感谢分享！谢谢分享
snowhite828821楼
2012-12-07 21:04
回复
五星好评 顶一下，感谢分享！
kedaxiaoyu22楼
2012-12-09 10:15
回复
五星好评 顶一下，感谢分享！
applelucky23楼
2012-12-09 21:39
回复
五星好评 顶一下，感谢分享！
fengj198424楼
2012-12-10 14:50
回复
五星好评 顶一下，感谢分享！
兔佳佳25楼
2012-12-10 20:29
回复
五星好评 顶一下，感谢分享！
艾兰路052426楼
2012-12-19 16:18
回复
五星好评 顶一下，感谢分享！
ccyyhh27楼
2012-12-21 15:24
回复
五星好评 顶一下，感谢分享！
zhx393828楼
2012-12-24 15:03
回复
五星好评 顶一下，感谢分享！
lingxd11729楼
2012-12-27 16:05
回复
五星好评 顶一下，感谢分享！
65438507430楼
2012-12-28 11:20
回复
五星好评 顶一下，感谢分享！
wenwen_b31楼
2013-01-07 14:28
回复
五星好评 
谢谢分享
谢谢分享
沫静萱32楼
2013-01-07 21:41
回复
五星好评 顶一下，感谢分享！
whkr33楼
2013-01-08 10:27
回复
五星好评 顶一下，感谢分享！
dreamfoxsxu34楼
2013-01-08 14:29
回复
五星好评 顶一下，感谢分享！
刃天蓝35楼
2013-01-12 23:14
回复
五星好评 顶一下，感谢分享！
五角枫60636楼
2013-01-14 20:06
回复
三星好评 谢谢分享
zhangml_200039楼
2013-01-24 08:21
回复
五星好评 顶一下，感谢分享！
白青红40楼
2013-02-16 11:21
回复
五星好评 顶一下，感谢分享！
xiuyan_ren42楼
2013-02-18 17:19
回复
五星好评 顶一下，感谢分享！
哈哈大姑爷43楼
2013-02-21 22:35
回复
五星好评 
guoliang181645楼
2013-03-04 10:49
回复
五星好评 顶一下，感谢分享！
jingg199046楼
2013-03-09 15:43
回复
五星好评
guiyingsu47楼
2013-03-12 16:41
回复
五星好评 顶一下，感谢分享！
lhccooler48楼
2013-03-21 21:38
回复
五星好评 顶一下，感谢分享！
ylzjhchen49楼
2013-03-24 22:17
回复
五星好评 顶一下，感谢分享！
yiyuner50楼
2013-03-26 20:45
回复
五星好评 顶一下，感谢分享！
