2020年职称英语理工类补全短文练习题(17)

2020年职称英语理工类补全短文练习题(17)
Dung to death
Fields across Europe are contaminated with dangerous
levels of the antibiotics given to farm animals. The drugs,
which are in manure sprayed onto fields as fertilizers, could
be getting into our food and water, helping to create a new
generation of antibiotic-resistant “superbugs”.

The warning comes from a researcher in Switzerland who
looked at levels of the drugs in farm slurry. ___1____.

Some 20,000 tons of antibiotics are used in the European
Union and the US each year. More than half are given to farm-
animals to prevent disease and promote growth. ___2___.

Most researchers assumed that humans become infected with
the resistant strains by eating contaminated meat. But far
more of the drugs end up in manure than in meat products,
says Stephen Mueller of the Swiss Federal Institute for
Environmental Science and Technology in Dubendorf.____3____

With millions of tons of animals manure spread onto
fields of crops such as wheat and barley each year, this
pathway seems an equally likely route for spreading
resistance, he said. The drugs contaminate the crops, which
are then eaten. ___4____

Mueller is particularly concerned about a group of
antibiotics called sulphonamides. ____5___His analysis found
that Swiss farm manure contains a high percentage of
sulphonamides; each hectare of field could be contaminated
with up to 1 kilogram of the drugs. This concentration is
high enough to trigger the development of resistance among
bacteria. But vets are not treating the issue seriously.

There is growing concern at the extent to which drugs,
including antibiotics, are polluting the environment. Many
drugs given to humans are also excreted unchanged and are not
broken down by conventional sewage treatment.

练习:
A. They do not easily degrade or dissolve in water.
B. And manure contains especially high levels of bugs
that are resistant to antibiotics, he says.

C. Animal antibiotics is still an area to which
insufficient attention has been paid.

D. But recent research has found a direct link between
the increased use of these farmyard drugs and the appearance
of antibiotic-resistant bugs that infect people.

E. His findings are particularly shocking because
Switzerland is one of the few countries to have banned
antibiotics as growth promoters in animals feed.

F. They could also be leaching into tap water pumped from
rocks beneath fertilized fields.

标准答案: E,D,B,F,A

合集下载

2020年职称英语考试《理工类》补全短文练习题7

2020年职称英语考试《理工类》补全短文练习题7

2020年职称英语考试《理工类》补全短文练习题7 Lowering the Risk of Heart DiseaseLike millions of other Americans, I come from a familywith a histotry of the heart disease. My father had his first three heart attacks when he was only thirty-one._____________(46) I grew up with heart disease. It was there, but I didn’t take it serio uly.When I was thirty-one, my blood cholesterol(胆固醇)level was measured for the first time.It was 311 mg/dl, the doctor told me- an extremely high level that put me at a very high high risk of heart disease, especially with my family history. He sent me to the National Institutes of Health(NIH)to be screened for participation in a clinicaltrial._____________(47)At NIH, physicians explained the degree of riskassociated with my blood cholesterol level and the nature of the experiment. This test involves putting a tube through aleg artery(动脉) up to the heart._____________(48)Learning about the risks of the experiment as well sa the risk associated with my raised blood cholesterol level scared the life out of me. Although I was excluded fromparticipating in the study, the experience may well havesaved my life.For the first time, I began to realize the seriousness of high blood cholesterol.___________(49) But equally important, I got a taste of what it is like to be a patient, to havetests done on me and to think of myself as sick.This was hard to take.This experience taught me two lifesaving lessons. First, although I felt fit and strong, I was actually at high risk for heart disease because of my high blood cholesterol level. And with my family histaory, it could not beignored.________________(50)A Second, I could lower my blood cholesterol level simply by changing what I ate.B I was three years old at that time.C There is not enough oxygen in the blood.D It was a heart attack just waiting to happenE The trial was designed to test the effect of lowering blood cholesterol on the risk of heart disease.F The death rate for the test was only 1 in 100, I was assured.。

2020年职称英语理工类补全短文训练题(2)

2020年职称英语理工类补全短文训练题(2)

2020年职称英语理工类补全短文训练题(2)Reinventing the TableAn earth scientist has rejigged(调整) the periodic table (元素周期表)to make chemistry simpler to teach to students._____(1)____ But Bruce Railsback from the University of Georgia says he is the first to create a table that breaks with tradition and shows the ions of each element rather than just the elements themselves.“I got tired of breaking my arms trying to ex plain the periodic table to earth students,"he says,criss-crossing(交叉) his hands in the air and pointing to different bits of a traditional table.___(2)_____ But he has added contourlines to charge density,helping to explain which ions(离子)react with which.Geochemists just want an intuitive sense of what's going on with the elements,"saysAlbert Galy from the University of Cambridge ____(3)_______(4)___ He explains that sulphur(硫磺),for example,shows up in three differentspots __one for sulphide (硫化物),which is found in minerals,one for sulphite(亚硫酸盐),and one for sulphate,which is found in sea salt,for instance.He has also included symbols to show which ions are nutrients,and which are common in soil or water.___ (5)___练习:A There have been many attempts to redesign the periodic table since Dmitri Mendeleevit up in 1871.B Railsback has still ordered the elements ac,cording to the number of protons they have.C “I imagine this would be good for undergraduates .D Railsback has listed some elements more than once.E And the size of element's symbol reflects how much of it is found in the Earth's crust.F The traditional periodic table was well drawn.练习答案1A 2B 3C 4D 5E。

2020年职称英语理工类补全短文考前冲刺练习题(7)

2020年职称英语理工类补全短文考前冲刺练习题(7)

2020年职称英语理工类补全短文考前冲刺练习题(7)Read With Greater SpeedDo you have difficulty reading in class? If so, a special reading program that helps match sounds with letters could speed up your brain.At least one out of every five elementary school studentsin the US has trouble learning to read, even when thestudents are good at other subjects. (1)Researchers from Yale University, US, studied a group of children from New York and Connecticut State. As part of the study, 37 struggling readers received special tutoring.Every day, instructors worked with them on recognizinghow written letters represent units of sound called phonemes (音素). (2)By the end of the school year, these children could read faster than before. They also made fewer mistakes, and understood more of what they read than they could earlier inthe year.As part of their study, the researchers used a special machine to take action photos of the students' brains.(3) This is the same part of the brain that becomesactive when good readers read. This activated brain area appears to include a structure that helps people recognize familiar written words quickly. In lower level readers, this structure remains inactive.A year later, the brain structure was still working hard in the students who had gore through the special tutoring, and they continued to do well in reading tests (4)However, some researchers still doubt the study. (5)A Many adults are interested in matching sounds with lettersB The students also practiced reading aloud and spellingC The biggest challenge for many of these kids,scientists say, is matching sounds with letters.D Another group in the study who went through a more traditional reading program didn't show the same progress.E The pictures showed an increase in activity in the back of the brain on the left side.F They believe that reading without making any noise or linking words to sounds is more efficient.答案:1. C2. B3. E4. D5. F。

2020职称英语考试理工类练习题:阅读理解

2020职称英语考试理工类练习题:阅读理解

2020职称英语考试理工类练习题:阅读理解2020职称英语考试理工类练习题:阅读理解By the time the Montgomery Improvement Association chose the 26-year-old Martin Luther King Jr. as its leader, the hours-old bus boycott by the black citizens of Montgomery, Alabama, was already an overwhelming success. King wouldlater write that his unanticipated call to leadership "happened so quickly that I did not have time to think in through." "It is probable that if I had, I would have declined the nomination."Although press reports at the time focused on his inspiring oratory, King was actually a reluctant leader of a movement initiated by others.(The boycott began on Dec. 5 1955.) His subsequent writings and private correspondence reveal man whose inner doubts sharply contrast with his public persona. In the early days of his involvement, King was troubled by telephone threats, discord within the black community and Montgomery's "get tough" policy, to which king attributed his jailing on a minor traffic violation. One night, as he considered ways to "move out of the picture without appearing a coward," he began to pray aloud and, at that moment, "experienced the presence of the God as I had never experienced Him before."He would later admit that when the boycott began, he was not yet firmly committed to Gandhian principles. Although he had been exposed to those teachings in college, he had remained skeptical. "I thought the only way we could solve our problem of segregation was an armed revolt," he recalled."I felt that the Christian ethic of love was confined to individual relationships."Only after his home was bombed in late January did king reconsider his views on violence. (At the time, he was seeking a gun permit and was protected by armed bodyguards.) Competing with each other to influence King were two ardent pacifists: Bayard Rustin, a black activist with the War Resisters League, and the Rev. Glenn E. Smiley, a white staff member of the Fellowship of Reconciliation. Rustin was shocked to discover a gun in King's house, while Smiley informed fellow pacifists that King's home was "an arsenal."1. What did King think of his nomination as leader of the Montgomery Boycott?A) He hadn't expected it.B) He had to think about it carefully.C) He would refuse to accept it.D) He was prepared to accept it.2. Why was King unwilling to lead the movement at first?A) Because he doubted if the boycott would be successful.B) Because he was troubled with a traffic accident atthat time.C) Because he thought he was too young to be a leader.D) Because he himself didn't start the boycott.3. Which of the following is Not mentioned as something that happened at the beginning of the black people's movement?A) King was put into prison.B) Black people disagreed with each other.C) King's armed revolt proposal was turned down.D) Black people found it hard to accept the policy pursued in Montgomery.4. Which of the following was the immediate cause that made King change his view on violence?A) The education he received in college.B) The attack of his home.C) The influence of two active non-violence advocates.D) The verdict of the Supreme Court.5. In Paragraph 4, the last sentence "King's home was 'an arsenal'" meansA) King's home was a place where people got together.B) King's home was a place where people tested bombs.C) King's home was a place where weapons were stored.D) King's home was a place where bombs exploded.答案:ADCBC。

2020年职称英语考试试题库(综合类):补全短文

2020年职称英语考试试题库(综合类):补全短文

2020年职称英语考试试题库(综合类):补全短文Public relations is a broad set of planned communications about the company, including publicity releases, designed to promote goodwill and a favorable image.Publicity then is part of public relations when it is initiated by the firm, __(1)__. Since public relations involves communications with stockholders, financial analysts, government officials, and other noncustomer groups, it is usually placed outside the marketing department, perhaps as a staff department or outside consulting firm reporting to top management. This organizational placement can be a limitation because the public relations department or consultant will likely not be in tune with marketing efforts. Poor communication and no coordination may be the consequences. __(2)__, this influence generally may be less than that provided by the other components of the public image mix.Publicity may be in the form of news releases ___(3)___. Publicity on the other hand should not be divorced from the marketing department, as it can provide a useful adjunct tothe regular advertising. Furthermore, __(4)__; some can result from an unfavorable press as a reaction to certain actions or lack of actions that are controversial or even downright ill-advised.转自环球网校The point we wish to emphasize is that a firm is deluding itself if it thinks its public relations function, whether within the company or an outside firm, can take care ofpublic image problems and opportunities. Many factors impacton the public image. Many of these have to do with the waythe firm does business, __ (5)__. Public relations and directed publicity may help highlight favorable newsworthy events, and may even succeed in toning down the worst of unfavorable publicity, but the other components of the public image mix create more lasting impressions.EXERCISE;A) that have favorable overtones for the companyinitiated by the public relations departmentB) not all publicity is initiated by the firmC) usually in the form of press releases or press conferencesD) such as its product quality, the servicing and handling of complaints, and the tenor of the advertisingE) what it means to the company isF) Although the basic purpose of public relations is to provide positive influence on the public image参考答案: C F A B D。

年职称英语考试理工类A级试题及答案

年职称英语考试理工类A级试题及答案

年职称英语考试理工类A级试题及答案第1部分:词汇选项(第1~15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个意义最为接近选项。

1 She was a puzzleA.girlB.womanC.problemD.mystery2 Her speciality is heart surgery.A.regionB.siteC.fieldD.platform3 France has kept intimate links with its former African territories.A.friendlyB.privateC.strongD.secret4 You should have blended the butter with the sugar thoroughlyA.spreadB.mixedC.beatenD.covered5 The industrial revolution modified the whole structure of English society,A.destroyedB.brokeC.smashedD.changed6 Tickets are limited and will be allocated to those who apply first.A.postedB.sentC.givenD.handed7 The change in that village was miraculous.A.conservativeB.amazingC.insignificantD.unforgettable8 Customers often defer payment for as long as possibleA.makeB.demandC.postponeD.obtain9 Canada will prohibit smoking in all offices later this year.A.banB.removeC.eliminateD.expel10 She read a poem which depicts the splendor of the sunset.A.declaresB.assertsC.describesD.announces11 From my standpoint,this thing is just ridiculousA.fieldB.point of viewC.knowledgermation12 The latest census is encouragingA.statementB.assessmentC.evaluationD.count15 He was elevated to the post of prime minister.A.pulledB.promotedC.liftedD.treated17 The Monarch butterfly looks fragile.A.RightB.WrongC.Not mentioned18 The Mexicans like butterflies very much.A.RightB.WrongC.Not mentioned19 in bad winters, about 70 per cent of the butterflies can stay aliveA.RightB.WrongC.Not mentioned20 In early April, the butterflies leave their winter homes flying back northA.RightB.WrongC.Not mentioned21 Genetically modified maize isn’t poisonous to the butterflies.A.RightB.WrongC.Not mentioned22 Genetically modified products are not popular in MexicoA.RightB.WrongC.Not mentioned33 Which of the following is NOT a social occasion?A.Going to church.B.Going to work in the office.C.Staying at home.D.Going to a party.34 Who brought the Frenchmen’s neckwear to Britain?A.Tony Blair.B.Charles ll.C.Jim Callaghan.D.Andrew Turnbull.35 When did British gentlemen begin to wear ties regularly?A.After the late 19th century.B.In the 1630s.C.In 1660.D.In the late 18th century.36 Losing amphibians means losingA.knowledge about fatal human diseases.B.knowledge about air and water pollution.C.a chance to discover new medicines.D.an opportunity to detect poisonous gases.37 Amphibians lay their eggsA.in any stream they can find,B.in places without UV light,C.only on sand.D.only in the right conditions38 The arroyo toad is disappearing becauseA.it has been threatened by frogs.B.it is losing its habitat.C.a disease has been killing its eggs.D.it can’t bear the cold of winter.39 Coal miners once used the canary bird to detectA.poisonous gases.B.air pollution.C.water leakage.D.radiation.40 Scientists think that the decline of amphibians couldA.cause environmental change.B.cause a decline in other kinds of animals.C.be a warning signal for human beings.D.be a good sign for human beings.41 Belle would be fed some fruit juice if sheA.grasped the joystick.B.moved the joystick to the side of the light.C.sat quietly in a special chair.D.watched lights on a display panel.43 Which of the following is NOT true of the robot built by Srinivasan?A.It was directed by signals converted from the electrical activity in Belle’s brainB.It converted the electrical patterns into instructions for the other robot.C.It was six hundred miles away from where Belle was.D.It could perform the same function as Belle did.45 The short-term goal of the research is to help a personA.whose motor cortex is seriously damaged.B.who can operate a wheelchair but not a robotic limb.C.who has spinal cord injury but is able to move a wheelchair.D.who is unable to move but whose motor cortex is not damaged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。

2020年职称英语理工类模拟试题及答案:阅读理解

2020年职称英语理工类模拟试题及答案:阅读理解2020年职称英语理工类模拟试题及答案:阅读理解短文后有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个答案涂在答题卡相对应的位置上。

Newspapers often tell us of floods in some parts of the United States.Nearly every year on the great central drainages heavy rains and melting snow cause the waters to pour out the mountains and plains, to turn brooks into torrents, and to swell quiet streams into wild uncontrolled rivers. From Cairo to New Orleans, and from Pittsburgh to Paducah, the cry "River rising!" is a familiar yet fearful voice. . . When the rivers sometimes become too high or too swift to becontrolled communities are flooded, families flee from their homes, croplands are washed out, and transportation comes to a halt. Hunger, disease, and death follow the wild waters.Although given less publicity, the agricultural damage done by the many smaller, more frequent floods usually far exceeds the losses caused by the very grand ones. In the Central States, ditches and drains cause the flows from spring rains and melting snow to run far more rapidly than in the days before white men settled on the land. Once, excess spring flood waters emptied into lakes and swampy lands, there to be detained for slow release into stream and rivers. Now, systematic drainage has actually eliminated thesenatural reservoirs.In the more rolling sections of the East, spring runoff was formerly absorbed and held temporarily in the poroussoils beneath the unbroken expanse of forest. When large areas were converted to farm use, removal of the forest and the practice of up-and-down hill plowing deprived the soils of much of their ability to catch and store water.The effects of eliminating the natural forest cover are shown in the gullied farm lands and widened stream channels found in some densely settled areas. Partly because the stream channels are more or less filled with material washed down from the uplands, and partly because storm runoff has increased, the channels are today no longer able to carry all the flow from heavy rains. This explains why the streams overtop banks far more often than in the days before settlement.31. The best title for the selection would be______.A. River Rising! River Rising!B. Forests and FloodsC. Flooding in the U. S.D. The Results of Flooding32. All of the following cause floods EXCEPT______.A. heavy rainB. melting snowC. increasing storm runoffD. porous soil33. The author states that______.A. lakes and swamps once acted like natural reservoirsB. up-and-down hill plowing catches and stores waterC. stream channels are the best carriers of waterD. floods are easily prevented and controlled34. According to the selection, streams overtop their banks partly because______.A. material from higher land is washed into themB. ditches and drains lead into themC. rivers become too swiftD. snow melts more rapidly nowadays35. The floods which are given most publicity______.A. cause no damageB. cause the most damageC. cause less agricultural damage than the many smaller, more frequent floodsD. far exceed the smaller, more frequent floods in agricultural lossMobile Phone and DiseasesA study by scientists in Finland has found that mobile phone radiation can cause changes in human cells that might affect the brain, the leader of the research team said.But Darius Leszczynski, who headed the 2-year study and will present findings next week at a conference in Quebec(魁北克), said more research was needed to determine the seriousness of the changes and their impact on the brain or the body.The study at Finland's Radiation and Nuclear Safety Authority found that exposure to radiation from mobile phones can cause increased activity in hundreds of proteins in human cells grown in a laboratory, he said.“We know that there is some biological response. We can detect it with our very sensitive approaches, but we do not know whether it can have any physiological effects on the human brain or human body,” Leszczynski said.Nonetheless the study, the initial findings of which were published last month in the scientific journal Differentiation, raises new questions about whether mobile phone radiation can weaken the brain's protective shield against harmful substances.The study focused on changes in cells that line blood vessels and on whether such changes could weaken the functioning of the blood-brain barrier, which prevents potentially harmful substances from entering the brain from the bloodstream, Leszczynski said.The study found that a protein called hsp27 linked to the functioning of the blood-brain barrier showed increased activity due to irradiation and pointed to a possibility that such activity could make the shield more permeable(能透过的), he said.“Increased protein activity might cause cells to shrink—not the blood vessels but the cells themselves—and then tiny gaps could appear between those cells through which some molecules could pass. ” he said.Leszczynski declined to speculate on what kind of health risks that could pose, but said a French study indicated that headache, fatigue and sleep disorders could result.“These are not life-threatening problems but can cause a lot of discomfort,” he said, ad ding that a Swedish group had also suggested a possible link with Alzheimer's disease.“Where the truth is do not know,” he said.Leszczynski said that he, his wife and children use mobile phones, and he said that he did not think his study suggested any need for new restrictions on mobile phone use.36 According to Leszczynski, how does mobile phoneaffect one's health? _________A Mobile phone radiation can increase protein activities and such activities can make the protective shield more permeable.B Mobile phone radiation can shrink the blood vessels and prevent blood from flowing smoothly.C Mobile phone radiation will bring stress to people exposed to it.D Mobile phone radiation kills blood cells at a rapid speed.37 What's the result of the French study? _________A The harm of mobile phone radiation is life-threatening.B Mobile phone may affect one's normal way of thinking.C Sleep disorders could result from mobile phone radiation.D A protein called hsp27 is killed by mobile phone radiation.38 What kind of disease is not caused by the use of mobile phone? _________A Fatigue.B Headache.C Alzheimer's disease.D Tuberculosis.39 According to the passage, what would be the future of the use of mobile phone? _________A People will be forbidden to use mobile phone.B People dare not use mobile phone because of its radiation.C People will continue to use mobile phone.D There will be new restrictions on the use of mobile phone.40 Which of the following is NOT true according to the passage? _________A The research in Finland found that mobile phone radiation will affect one's brain.B Mobile phone radiation can cause increased activity in hundreds of protein in human cells.C Increased protein activity might cause cells to shrink.D Lszczynski forbid his wife and children to use mobile phone after his research.Electronic Mail (E-mail)During the past few years, scientists the world over have suddenly found themselves productively engaged in task they once spent their lives avoiding-writing, any kind of writing, but particularly letter writing. Encouraged by electronicmail's surprisingly high speed, convenience and economy, people who never before touched the stuff are regularly, skillfully, even cheerfully tapping out a great deal of correspondence.Electronic networks, woven into the fabric of scientific communication these days, are the route to colleagues in distant countries, shared data, bulletin boards andelectronic journals. Anyone with a personal computer, a modem and the software to link computers over telephone lines can sign on. An estimated five million scientists have done so with more joining every day, most of them communicating through a bundle of interconnected domestic and foreignroutes known collectively as the Internet, or net.E-mail is starting to edge out the fax, the telephone, overnight mail, and of course, land mail. It shrinks time anddistance between scientific collaborators, in part because it is conveniently asynchronous (writers can type while their colleagues across time zones sleep; their message will be waiting). If it is not yet speeding discoveries, it is certainly accelerating communication.Jeremy Bernstei, the physicist and science writer, once called E-mail the physicist's umbilical cord. Lately other people, too, have been discovering its connective virtues. Physicists are using it; college students are using it, everybody is using it, and as a sign that it has come of age, the New Yorker has celebrated its liberating presence with a cartoon-an appreciative dog seated at a keyboard, saying happily, “On the Internet, nobody knows you're a dog.”41 The reasons given below about the popularity of E-mail can be found in the passage EXCEPT __________.A direct and reliableB time-saving in deliveryC money-savingD available at any time42 How is the Internet or net explained in the passage? __________A Electronic routes used to read home and international journals.B Electronic routes used to fax or correspond overnight.C Electronic routes waiting for correspondence while one is sleeping.D Electronic routes connected among millions of users, home and abroad.43 What does the sentence “If it is not yet speeding discoveries, it is certainly accelerating communication” most probably mean? __________A The quick speed of correspondence may have ill-effects on discoveries.B Although it does not speed up correspondence, it helps make discoveries.C It quickens mutual communication even if it does not accelerate discoveries.D It shrinks time for communication and accelerates discoveries.44 What does the sentence “On the Internet, nobody knows you're a dog.”imply in the last paragraph? __________A Even dogs are interested in the computer.B E-mail has become very popular.C Dogs are liberated from their usual duties.D E-mail deprives dogs of their owners' love.45 What will happen to fax, land mail, overnight mail, etc. according to the writer? __________A Their functions cannot be replaced by E-mail.B They will co-exist with E-mail for a long time.C Less and less people will use them.D They will play a supplementary function to E-mail.31. C 3 2. D 3 3. A 3 4. A 35. C36A 37C 38D 39C 40D41 A 42 D 43 C 44 B 45 C相关推荐:相关推荐:。

2020年职称英语理工类补全短文训练题(7)

2020年职称英语理工类补全短文训练题(7)Reinventing the TableAn earth scientist has rejigged(调整) the periodic table (元素周期表)to make chemistry simpler to teach to students._____(1)____ But Bruce Railsback from the University of Georgia says he is the first to create a table that breaks with tradition and shows the ions of each element rather than just the elements themselves."I got tired of breaking my arms trying to explain the periodic table to earth students," he says,criss-crossing (交叉) his hands in the air and pointing to different bits of a traditional table.___(2)_____ But he has added contour lines to charge density,helping to explain which ions(离子)react with which.Geochemists just want an intuitive sense of what's going on with the elements,"saysAlbert Galy from the University of Cambridge ____(3)_______(4)___ He explains that sulphur(硫磺),for example,shows up in three differentspots __one for sulphide (硫化物),which is found in minerals,one for sulphite(亚硫酸盐),and one for sulphate,which is found in sea salt,for instance.He has also included symbols to show which ions are nutrients,and which are common in soil or water.___ (5)___练习:A There have been many attempts to redesign the periodic table since Dmitri Mendeleevit up in 1871.B Railsback has still ordered the elements ac,cording to the number of protons they have.C "I imagine this would be good for undergraduates .D Railsback has listed some elements more than once.E And the size of element's symbol reflects how much of it is found in the Earth's crust.F The traditional periodic table was well drawn.练习答案1A 2B 3C 4D 5E。

2020职称英语理工类考试补全短文练习(1)

2020职称英语理工类考试补全短文练习(1)Good WritingLike fine food,good writing is something we approach with pleasure and enjoy from the first taste to the last.(46) Quite the contrary,just as the cook has to undergo an intensive training,mastering the skills of his trade,the writer must sit at his desk and devote long hours to achieving a style in his writing,whatever its purpose--school work,matters of business,or purely social communication.(47)There are still some remote places in the world where you might find someone to do your business or social writing for you,for a fee.There are a few managers who are lucky enough to have the service of that rare kind of secretary who can take care of all sorts of letter writing with no more than a quick note to work from.(48)We have to write school papers,business papers or home papers.We are constantly called on to put words to paper.It would be difficult to count the number of suchwords,messages,letters,and reports put to the mails or delivered by hand,but the daily figure must be enormous.(49) We want to arouse and hold the interest ofreaders.We want whatever we write to be read,from first word to last,not thrown into some "letters-to-be-read" file orinto a wastepaper basket.(50)A.But for most of us,if there is any writing to be done,we have to do it ourselves.B.However,the managers may sometimes cause the writers a lot of trouble.C.Any good writers,like good cooks,do not suddenly appear full-blown(成熟的)D.What is more,everyone who writes expects,or at least hopes,that his writing will be read.E.This is the reason we bend our efforts toward learning and practising the skills of interesting,effective writing.F.You may be sure that the greater the effort,the more effective the writing,and the more rewarding.答案:CFADE。

2020年职称英语考试理工类补全短文专项练习2

2020年职称英语考试理工类补全短文专项练习2Dung to DeathFields across Europe are contaminated with dangerous levels of the antibiotics(抗生素) given to farm animals. The drugs,which are in manure sprayed onto fields as fertilizers(肥料),could be getting into our food and water,helping to create a new generation of antibiotic-resistant "superougs ".The warning comes from a researcher in Switzerland who looked at levels of the drugs infarm slurry. __(1)___Some 20,000 tons of antibiotics are used in the European Union(欧盟) and the US each year. More than half are given to farm-animals to prevent disease and promote growth. _(2)_Most researchers assumed that humans become infected with the resistant strains by eatingcontaminated meat?But far more of the drugs end up in manure than in meatproducts,saysStephen Mueller of the Swiss Federal Institute for Environmental Science and Technology inDubendoff. __(3)_With millions of tons of animals manure spread ontofields of crops such as wheat and barley each year,this pathway seems an equally likely route for spreading resistance,he said. Thedrugs contaminate(污染) thecrops,which are then eaten. ___(4)___ -Mueller is particularly concerned about a group of antibiotics called sulphonamides.(磺胺)___(5)___ Hisanalysis found that Swiss farm manure contains a high percentage of sulphonamides;each hectare(英亩)of field could be contaminated with up to 1 kilogram of the drugs.This concentration is high enough to trigger (启动,促使)the development of resistance among bacteria(细菌)?But vets are not treating the issue seriously.There is growing concern(越来越多的注重) at the extent to which drugs,including antibiotics,are polluting the environment. Many drugs given to humans are also excreted(排泄) unchanged and are not broken down by conventional sewage treatment.练习:A They do not easily degrade or dissolve in water,B And manure contains especially high levels of bugs that are resistant to antibiotics,he say ,C Animal antibiotics is still an area to whichinsufficient attention has been paid.D But recent research has found a direct link between the increased use of these farmdrugs and the appearance of antibiotic-resistant bugs that infect people.E His findings are particularly shocking because Switzerland is one of the few countrieshave bannedantibiotics as growth promoters in animal feed.F They could also be leaching into tap water pumped from rocks beneath fertilized fields.练习答案1E 2D 3B 4F 5A。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
相关文档
最新文档