《2020年度全国职称英语等级考试全真模拟题理工类B级.pdf》由会员分享，可在线阅读，更多相关《2020年度全国职称英语等级考试全真模拟题理工类B级.pdf（60页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、全国职称英语等级考试全真模拟题理工类B级资料仅供参考全国职称英语等级考试全真模拟题理工类B级(一)第一部分：词汇选项(第115题，每 题1分，共15分)下面共有15个句子，每个句子中均有1个词或短语划有底横线，请从每个句子后面所给的4个选项中选择1个与划线部分意义最相近的词或短语。答案一律涂在答题卡相应的位置上。1.All living organisms,regardless of theirunique identity,have certain biological,chemical,and physical characteristics incommon.A)as a result
2、of B)considering C)onpurpose D)whatever2.The most pressing problem any economicsystem faces is how to use its scarce resources.A)puzzling B)difficult C)terrifying D)urgent资料仅供参考3.The Klondike was the scene of one of thebiggest gold rushes the world has ever known.A)location B)view C)event D)landscap
3、e4.Of the reptile groups,the snake groupwas the 411al one to appear.A)last B)best C)ugliest D)longest5.Colleges and universities usually givediplomas or certificates to students whocomplete course requirements satisfactorily.A)responsibly B)acceptably C)patiently D)respectfully6.A will is a document
4、 written to ensurethat the wishes of the deceased are realized.A)fulfilled B)afHliated C)advocated D)received7.She has been the subject of massivemedia coverage.A)extensive B)negative C)responsive资料仅供参考D)explosive8.The conference explored the possibility ofdoser trade links.A)rejected B)investigated
5、 C)proposedD)postponed9.Experts generally agree that diet has animportant bearing on ones health.A)result B)factor C)cause D)influence10.1 expect that she will be able to cater foryour particular needs.A)meet B)reach C)provide D)fill11.John is collaboration with Mary inwriting a book.A)cooperating B
6、)merging C)combiningD)associating12.Mary lost control of her car and collided资料仅供参考with a tree.A)came across B)ran into C)met D)knocked13.Mary was compelled to take in washingto help support her family.A)pleaded B)appealed C)forced D)instructed14.The child couldn*t comprehend theadvanced textbook.A)
7、interpret B)read C)understand D)translate15.I warned him to keep the matterconfidential.A)private B)safe C)personal D)secret第二部分：阅读判断(第16-22题，每 题1分，共7分)阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。如果该资料仅供参考句提供的是正确信息，请在答题卡上把A 涂黑;如果该句提供的是错误信息，请在答题卡上把B涂黑；如果该句的信息在文章中没有提及，请在答题卡上把C 涂黑。Radiocarbon DatingNowadays s
8、cientists can answer manyquestions about the past through a techniquecalled radiocarbon（放射性碳）.or carbon-14,dating One key to understanding how and whysomething happened is to discover when ithappened Radiocarbon dating wasdevelopedinthelatel940s by physicist Willard FLibby at the University of Chica
9、go An atom ofordinary carbon called carbon-12 has sixprotons（质子）and six neutrons（中 子）in itsnucleus（原 子 核）Carbon-14,or C-14,is aradioactive unstable form of carbon that hastwo extra neutrons.It returns to e more stableform of carbon through a process calleddecay（衰减）This process involves the loss of t
10、he资料仅供参考extra neutrons and energy from the nucleus.InLibbys radiocarbon dating technique,the weakradioactive emissions（放 射）from this decayprocess are counted by instruments such as aradiation detector and counter.The decay rateis used to determine the proportion of C-14atoms in the sample being date
11、d.Carbon-14 isproduced in the Earth s atmosphere whennitrogen（氨）-14.or N-14,interacts with cosmicrays（宇宙射线）Scientists believe since the Earthwas formed,the amount of nitrogen in theatmosphere has remained constantConsequently,C-14 formation is thought tooccur at a constant rate Now the ratio of C-14
12、 toother carbon atoms in the atmosphere is knownMost scientists agree that this ratio is useful fordating items back to at least 50.000 yearsAll life on Earth is made of organicmolecules（分 子）that contain carbon atomscoming from the atmosphere So all living thingshave about the same ratio of C-14 ato
13、ms toother carbon atoms in their tissues（组织）Once资料仅供参考an organism（有机体）dies it stops taking incarbon in any form,and the C-14 alreadypresent begins to decay Over time the amount ofC-14 in the material decreases and the ratio ofC-14 to other carbon atoms goes down In termsof radiocarbon dating,the few
14、er C-14 atoms in asample 9 the older that sample is.16.Nowadays many scientists depend onradiocarbon for dating age-old objectsA RightB WrongC Not mentioned17.The radiocarbon dating technique is onlyabout 40 years oldA RightB WrongC Not mentioned18.An atom of ordinary carbon has six protonsand eight
15、 neutronsA RightB Wrong资料仅供参考C Not mentioned19.Radar is used to determine thecharacteristics of radiocarbonA RightB WrongC Not mentioned20.Radiocarbon is reliable in dating an objectback to at least 50,000 yearsA RightB WrongC Not mentioned21.When an organism dies,the C-14 in it beginsto decay.A Rig
16、htB WrongC Not mentioned22.The half-life of C-14 is about 25,000 yearsA RightB WrongC Not mentioned第三部分：概括大意与完成句子（第 23-30题，每题1 分,资料仅供参考共 8 分）阅读下面这篇短文，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 2,3,5,6 段每段选择1 个正确的小标题；第 273 0 题要求从所给的6 个选项中选择4个正确选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。The iPadl.The iPad is a tablet comp
17、uter designed,developed and marketed by Apple primarily asa platform for audio-visual media includingbooks,periodicals,movies,music,games,andweb content.At about 1.5 pounds（o80 grams）,its size and weight fall between those orcontemporary smart phones and laptopcomputers.Apple released the iPaa in Ap
18、ril,and sold 3 million of the devices in 80 days.2.The iPad runs the same operating systemas the iPod Touch and iPhoneand can run itsown applications as well as iPhone applications.Without modification?and with the exception ofweb applications,it will only run programsapproved by Apple and distribut
19、ed via its onlinestore.3.Like iPhone and iPod Touch,the iPad iscontrolled by a multitouch display-a departurefrom most previous tablet computerswhichused a pressure-triggered stylus（触控笔）一aswell as a virtual onscreen keyboard in lieu of aphysical keyboard.The iPad uses a Wi-Fi dataconnection to brows
20、e the Internet,load andstream media,and install software.Some modelsalso have a 3G wireless data connection whichcan connect to HSPA data networks.The device资料仅供参考is managed and synced by iTunes on a personalcomputer via USB cable.4.An ipad has different features andapplications one can use to execu
21、te different andinteresting things.There are lots of ipadapplications that the owner can use fo enhancetfie way they communicate.Some of these arehow to use social networking sites and otheronline options.One of the most common uses isfor e-mail services.ipad applications slideMarkdown Mail allow th
22、e adoption of specificand particular options.They enable the ownerto personalize their email accounts.5.While the ipad is mostly used byconsumers it also has been taken up by businessusers.Some companies are adopting ipads intheir business offices by distributing or makingavailable ipads to employee
23、s.Examples of usesin the workplace include lawyers responding toclients,medical professionals accessing healthrecords during patient exams,and managersapproving employee requests.A survey by Frost&Sullivan shows that ipad usage in workplacesis linked to the goals of increased employeeproductivity,re
24、duced paperwork,and increasedrevenue23.24.25.26.2345hhhhppppaaaarrrrggggaaaarrrraaaapppApB.CDF.Online storesDifferences from iPhoneDisplay and data connectionBusiness usageFeatures ana applicationsOperating system27.In April the iPad developed by Applewas 87 The iPad will only run programsapproved b
25、y Apple if not_ 29.iPad applications enable the owners资料仅供参考email accounts to be _.30.iPad usage in offices enables employeeproductivity to be.AB.CDE.F.modifiedincreasedpersonalizedbrowseddistributedreleased第四部分：阅读理解（第3145题，每题3分，共45分）下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案涂在答
26、题卡相应的位置上。第一篇 Teaching Math,TeachingAnxietyIn a new study about the way kids learnmath in elementary school,the psychologists atthe University of Chicagol Sian Beilock andSusan Levine found a surprising relationshipbetween what female teachers think and whatfemale students learn:If a female teacher i
27、s资料仅供参考uncomfortable with her own math skills,thenher female students are more likely to believethat boys are better than girls at math.“If these girls keep getting math-anxiousfemale teachers!in later grades,it may create asnowball effect on their math achievement?,said Levine.In other words,girls
28、may end uplearning math anxiety from their teachers4.Thestudy suggests that if these girls grow upbelieving that boys are better at math than girlsare,then these girls may not do as well as theywould have if they were more confident.Just as students find certain subjects to bedifficult,teachers can
29、find certain subjects to bedifficult to learn-and teach.The subject ofmath can be particularly difficult for everyone.Researchers use the word anxiety to describesuch feelings:anxiety is uneasiness or worry.The new study found that when a teacherhas anxiety about math,that feeling caninfluence how h
30、er female students feel aboutmath.The study involved 65 girls,52 boys and资料仅供参考17 first-and second-grade teachers inelementary schools in the Midwest.The studentstook math achievement tests at the beginningand end of the school year,and the researcherscompared the scores.The researchers also gave th
31、e students teststo tell whether the students believed that a mathsuperstar had to be a boy.Then the researchersturned to the teachers:To find out whichteachers were anxious about math,theresearchers asked the teachers how they felt attimes when they came across math,such aswhen reading a sales recei
32、pts.A teacher who gotnervous looking at the numbers on a salesreceipt,for example,was probably anxiousabout math.Boys,on average,were unaffected by ateacher*s anxiety.On average,girls withmath-anxious teachers scored lower on theend-of-the-year math tests than other girls in thestudy did.Plus,on the
33、 test showing whethersomeone thought a math superstar had to be a资料仅供参考boy,20 girls showed feeling that boys would bebetter at math-and all of these girls had beentaught by female teachers who had mathanxiety.“This is an interesting study,but the resultsneed to be interpreted as preliminary and inne
34、ed of replication with a larger sample6,H saidDavid Geary,a psychologist at the University ofMissouri 7in Columbia.31.What is the result of the research at theUniversity of Chicago,according to the firstparagraph?A Girls comfortable with their own mathskills are better than boys at math.B Girls unco
35、mfortable with their ownmath skills are not as good as boys at math.C Female teachers*math skills haveinfluence over girl students*math skills.D Female teachers*confidence in theirmath skills is related to girFs math skills.32.What is implied in the thirdparagraph?资料仅供参考A Math teachers,like math lea
36、rners,donot like the subject due to its difficulty.B A difficult subject like math may affectteachers*confidence in teaching the subject.C Teachers are more anxious teachingmath than their students learning math.D Math is so difficult that no teachers liketo teach it.33.According to the experiment,t
37、hoseteachers were probably anxious about mathwhen they feltA nervous memorizing the numbers of asales receipt.B helpless saving the,numbers of a salesreceipt.C uneasy reading the numbers of a salesreceipt.D hopeless filling in the numbers of asales report.34.The sixth paragraph tells us that therese
38、arch findingsA prove a strong link between female资料仅供参考teachers*math anxiety and their femalestudents1 math achievements.B show that male students are less likelyto be affected by their math anxiety than femalestudents.C provide strong evidence that mathsuperstars are more likely to be males thanfem
39、ales.D discover a strong link between teachers1math anxiety and their students*mathachievements.35.David Geary thinks thatA the study is interesting but it is based onunreliable research process.B the research results need to be retestedbased on a larger sample.C the research results need to bereint
40、erpreted to be meaningful.D the study is well based and producessignificant results.资料仅供参考第二篇 Where Have All the BeesGone?Scientists who study insects have a realmystery on their hands.All across the country,honeybees are leaving their hives（蜂巢）andnever returning.Researchers call thisphenomenon colo
41、ny-collapse（群 体 瘫 痪）disorder.It is reposed that 25 to 40 percent ofthe honeybees in the US have vanished fromtheir hives since last fall.So far,no one canexplain why.Colony collapse is a serious concernbecause bees play an important role in theproduction of about one-third of the foods weeat.As they
42、 feed,honeybees spread pollen（花粉）from flower to flower.Without this process,aplant cant produce seeds or fruits.Now,a group of scientists and beekeepershave teamed up to try to figure out whafscausing the alarming collapse of so manycolonies.They hope to find out whafscontributing to the decline and
43、 to prevent bee资料仅供参考disappearance in the future.It could be that disease is causing thedisappearance of the bees.To explore thatpossibility,Jay Evans,a researcher at the UnitedStates Department of Agriculture（SDA）BeeResearch Laboratory,examines bees taken fromcolonies that are collapsing.We know wh
44、at ahealthy bee should look like on the inside and wecan look for physical signs of disease.n he says.And bees from collapsing colonies dont lookvery healthy.n Their stomachs are worn downcompared to the stomachs of healthy bees,“Evans says.It may be that a parasite（寄生虫）making the bees*digestive org
45、ans.Theirimmune（免疫的）systems may not be working asthey should.Moreover,they have high levels ofbacteria inside their bodies.Another cause of colony-collapse disordermay be certain chemicals that farmers apply tokill unwanted insects on crops,says Jerry Hayes,chief bee inspector for the Florida Depart
46、mentof Agriculture.Some studies,he says,suggest资料仅供参考that a certain type of insecticide（杀虫剂）affectsthe honeybees newels system and memory.Itseems like honeybees are going out and gettingconfused about where to go and what to do,“hesays.If it turns out that a disease is contributingto colony collapse
47、,bees*genes could explain whysome colonies have collapsed and others havenot.In any group of bees there are manydifferent kinds of genes.The more differentgenes a group has,the higher the group*s geneticdiversity.So far scientists havent determinedthe role of genetic diversity in colony collapse,but
48、 its a promising theory,says Evans.36.What is the mystery that researchers findhard to explain?A.Honeybees are flying all across thecountry.B.Half of the honeybees in the US have died.C.Honeybees are leaving their hives and donot return.资料仅供参考D.Honeybee hives are in disorder.37.Researchers are serio
49、usly concerned with thephenomenon of colony-collapse disorder becauseA.honeybees help produce one-third of thefoods we eatB.parasites on bees may spread everywhere.C.honeybees cannot find enough foodelsewhere.D.honeybees feed on flowers.38.Which of the following is a possible cause ofthe colony-coll
50、apse disorder?A.Population explosion.B.Decreasing number of flowers around.C.Genetically modified products.D.Diseases and chemicals.39.Which of the following explanations is givenby Jerry Hayes to the phenomenon?A.Bee-keepers do not understand thehoneybees behavior.资料仅供参考B.A certain type of chemical