职称英语考试理工类C级试题.doc
《职称英语考试理工类C级试题.doc》由会员分享,可在线阅读,更多相关《职称英语考试理工类C级试题.doc(15页珍藏版)》请在咨信网上搜索。
1、职称英语考试理工类C级试题资料仅供参考 全国职称英语等级考试理工类(C级)真题及答案 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个词或短语划有底横线,请为每处划线部分确定1个意义最为接近的选项。 1Id very much like to know what your aim in life is. Athought B idea Cgoal D plan 2The policemen acted quickly because lives were at stake Ain danger B in difficulty Cin despair D out of
2、 control 3Practically all animals communicate either through sounds or through soundless codes. A Certainly BProbably C Almost DAbsolutely 4Mary rarely speaks to Susan. Aslowly B seldom Cweakly D constantly 5Im working with a guy from London Ateacher B student Cfriend D man 6Youd better put these do
3、cuments in a safe place Adark B secure Cguarded D banned 7The courageous boy has been the subject of massive media coverage. Aextensive B continuous Cinstant D quick 8The town is famous for its magnificent buildings Ahigh-rise B modern Cancient D splendid 9The great change of the city astonished all
4、 the visitors. Asurprised B scared Cexcited D moved 10 Jack packed up all the things he had accumulated over the last ten years. Afuture B far Cpast D near 11 Would you please call my husband as soon as possible? Avisit B phone Cconsult D invite 12 We had a long conversation about her parents Aspeec
5、h B question Ctalk D debate 13 The chairman proposed that we stop the meeting. Astated B announced Cdemanded D suggested 14 Obviously these people can be relied on in a crisis. Alived on B depended on Cbelieved in D joined in 15 There is always excitement at the Olympic Games when an athlete breaks
6、a record Abeats B maintains Cmatches D tries 第2部分:阅读判断(第1622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 Dating Nowadays scientists can answer many questions about the past through a technique called radiocarbon (放射性碳), or carbon-14,
7、 dating. One key to understanding how and by something happened is 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 it
8、s nucleus. Carbon-14, or C-14, is a radioactive, unstable form of carbon that 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 te
9、chnique, the weak radioactive emissions (放射) from his decay process are counted 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
10、N-14, interacts with cosmic rays (宇宙射线)。 Scientists believe since the Earth was formed, 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 scie
11、ntists agree that this ratio is useful for dating items back to at least 50,000 years. All 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)。 O
12、nce an organism (有机体) dies it tops taking in carbon in any form, and the C-14 already present 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 tha
13、t sample is. 16Nowadays many scientists depend on radiocarbon for dating age-old objects A Right BWrong C Not mentioned 17The radiocarbon dating technique is only about 40 years old A Right BWrong C Not mentioned 18An atom of ordinary carbon has six protons and eight neutrons A Right BWrong C Not me
14、ntioned 19Radar is used to determine the characteristics of radiocarbon. A Right BWrong C Not mentioned 20Radiocarbon is reliable in dating an object back to at least 50,000 years. A Right BWrong C Not mentioned 21When an organism dies, the C-14 in it begins to decay. A Right BWrong C Not mentioned
15、22The half-life of C-14 is about 25,000 years. A Right BWrong C Not mentioned 第3部分:概括大意与完成句子(第2330题,每题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个选项中为每个确定1个最佳选项。 Meet Your Memory 1Memory is something that cannot be seen, touched or weighed. It is thought to be abstract
16、. It is a set of skills rather than an object. Neither is there a single standard for judging a good or poor memory. There are a number of different ways in which a person may have a good memory. 2Memory is generally viewed as consisting of three stages: (1) acquisition refers to learning the materi
17、al; (2) storage refers to keeping the material in the brain until it is needed; and (3) retrieval (提取) refers to getting the material back out when it is needed. 3Memory consists of at least two different processes: short-term memory and long-term memory. Short-term memory has a limited capacity and
18、 a rapid forgetting rate. Its capacity can be increased by chunking (组成大块), or grouping separate bits of information into larger chunks. Long-term memory has an almost unlimited capacity. 4One measure of memory is recall, which requires you to produce information by searching the memory for it. In a
19、ided recall, you are given cues (提示) to help you produce the information. In free-recall learning you recall the material in any order; in serial learning you recall it in the order it was presented; and in paired-associate learning you learn pairs of words so that when the first word is given you c
20、an recall the second word. A second measure of memory is recognition, in which you do not have to produce the information from memory, but must be able to identify it when it is presented to you. In a third measure of memory, relearning, the difference between how long it took to learn the material
21、the first time and how long it takes to learn it again indicates how much you remember. Relearning is generally a more sensitive measure of memory than is recognition because relearning shows retention (保持) while recognition does not. Recognition is generally a more sensitive measure than recall. 23
22、Paragraph 1 24Paragraph 2 25Paragraph 3 26Paragraph 4 AWhy do we forget things? BHow do we measure memory? CWhat are the stages memory consists of? DWhat is the difference between short-term memory and long-term memory? EWhat is memory? FWho may have a poor memory? 27Remembering involves getting the
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 职称 英语考试 理工类 试题
1、咨信平台为文档C2C交易模式,即用户上传的文档直接被用户下载,收益归上传人(含作者)所有;本站仅是提供信息存储空间和展示预览,仅对用户上传内容的表现方式做保护处理,对上载内容不做任何修改或编辑。所展示的作品文档包括内容和图片全部来源于网络用户和作者上传投稿,我们不确定上传用户享有完全著作权,根据《信息网络传播权保护条例》,如果侵犯了您的版权、权益或隐私,请联系我们,核实后会尽快下架及时删除,并可随时和客服了解处理情况,尊重保护知识产权我们共同努力。
2、文档的总页数、文档格式和文档大小以系统显示为准(内容中显示的页数不一定正确),网站客服只以系统显示的页数、文件格式、文档大小作为仲裁依据,平台无法对文档的真实性、完整性、权威性、准确性、专业性及其观点立场做任何保证或承诺,下载前须认真查看,确认无误后再购买,务必慎重购买;若有违法违纪将进行移交司法处理,若涉侵权平台将进行基本处罚并下架。
3、本站所有内容均由用户上传,付费前请自行鉴别,如您付费,意味着您已接受本站规则且自行承担风险,本站不进行额外附加服务,虚拟产品一经售出概不退款(未进行购买下载可退充值款),文档一经付费(服务费)、不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
4、如你看到网页展示的文档有www.zixin.com.cn水印,是因预览和防盗链等技术需要对页面进行转换压缩成图而已,我们并不对上传的文档进行任何编辑或修改,文档下载后都不会有水印标识(原文档上传前个别存留的除外),下载后原文更清晰;试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓;PPT和DOC文档可被视为“模板”,允许上传人保留章节、目录结构的情况下删减部份的内容;PDF文档不管是原文档转换或图片扫描而得,本站不作要求视为允许,下载前自行私信或留言给上传者【天****】。
5、本文档所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用;网站提供的党政主题相关内容(国旗、国徽、党徽--等)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。
6、文档遇到问题,请及时私信或留言给本站上传会员【天****】,需本站解决可联系【 微信客服】、【 QQ客服】,若有其他问题请点击或扫码反馈【 服务填表】;文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“【 版权申诉】”(推荐),意见反馈和侵权处理邮箱:1219186828@qq.com;也可以拔打客服电话:4008-655-100;投诉/维权电话:4009-655-100。