Appendix 11. Written practice exercises
Unit 1
1) Explain the necessity of using italicized articles in the following passage
Schools can also be grouped by 1) the types of programs and degrees they offer. 2) The three major groups are community colleges, 4-year colleges, and universities. Community colleges (sometimes called junior colleges) offer only 3) the first 2 years of undergraduate studies 4) (the freshman and sophomore years). They enroll about 5 million students 5) a year. Most community colleges are public schools, supported by local and / or state funds. They serve two general types of students: those taking 6) the first 2 years of college before they transfer to 7) a 4-year school for their third and fourth (junior and senior) years and those enrolled in 1- or 2-year job-training programs. What is 8) the difference between 9) a college and 10) a university? Size is only part of 11) the answer. Some colleges have 12) a student body of just 13) a few hundred, while some state universities serve more than 100,000 students on several campuses?
2) Fill in the gaps with the correct article where necessary
As with 1) …………… schools system, so also with higher education: there is 2) …………… real problem about the exclusivity of Britain's two 3) …………… oldest universities. While Oxbridge is no longer the preserve of social elite, it retains its exclusive, narrow and spell-binding culture. Together with 4) …………… public school system, it creates a narrow social and intellectual channel from which 5) …………… nation's leaders are almost exclusively drawn. In 6) …………… 1996 few people were in 7) …………… top jobs in the Civil Service, the armed forces, 8) …………… law or finance, who had not been either to a public school or Oxbridge, or to both.
Education and literacy are 9) …………… important parts of modern life. Literacy has 10) …………… impact on 11) …………… individual's ability to participate in society and to understand important public issues. And it provides 12) …………… foundation upon which skills needed in 13) …………… labour market are built.
Unit 2
1) Explain the necessity of using italicized linking words and phrases in the following passage
1) For example, estimates of the amount of warming that would result from a doubling of greenhouse gas concentrations range from 3.6 degrees to 8 degrees Fahrenheit. The intergovernmental climate panel said it could not rule out even higher temperatures. 2)While the low end could probably be tolerated, the high end would almost certainly result in calamitous, long-lasting disruptions of ecosystems. 3) Moreover, a wide range of economists and earth scientists say that level of risk justifies an aggressive response. 4)By the way, some questions have persisted 5)despite of the fact that a century-long accumulation of studies points to human-driven warming. The rate and extent at which sea levels will rise in this century as ice sheets erode remains highly uncertain, 6)even as the long-term forecast of centuries of retreating shorelines remains intact. Scientists are struggling more than ever to disentangle how the heat building in the seas and atmosphere will affect the strength and number of tropical cyclones. 7)Furthermore, the latest science suggests there will be more hurricanes and typhoons that reach the most dangerous categories of intensity, 8)but fewer storms over all.
2) Fill in the gaps with the linking words from the box
| In addition so particularly thus for example moreover although furthermore finally also |
Science and technology have always been in mutual interaction. 1) ……………, there is a deep symbiosis between discovery in science and new technology. 2) …………… today scientific collaboration between different countries is considered to be a quite important part of science development. 3) …………… scientific collaboration leads to formation of scientific knowledge of ordinary people. 4) ………….., having a population that has strong literacy skills also places a country in a better position to meet the complex social challenges that it faces. 5) ………….., strong literacy skills are linked to better health outcomes for individuals. 6) ………….. highly literate population will be better able to deal with issues of governance in a highly diverse society. Using new technologies in science is quite significant for development of new branches of science as well. 7) ………….., since the human race has been swiftly advancing with regards to technology, new branches of engineering are being developed. 8) ………….. engineering jobs can now be found in the following fields: computer engineering, software engineering, nanotechnology, molecular engineering, mechatronics and many more. 9) ………….. all these fields may be defined differently, there is generally a great overlap, 10) ………….. in the fields of physics, chemistry and mathematics.
Unit 3
1) Explain the necessity of using italicized pronouns in the following passage
A university is usually bigger than a college because the scope of 1) its programs is much greater. 2) It offers a wider range of undergraduate programs plus graduate studies. Part of the responsibility of a university is to encourage 3) its faculty and graduate students to do research to advance human knowledge. Colleges, on the other hand, are primarily undergraduate schools. They have no obligation to conduct research. Many excellent colleges are liberal arts schools, 4) which means that 5) they offer studies in the humanities, languages, mathematics, social sciences, and sciences. 6) They generally do not offer degrees in engineering, business, journalism, education (teacher training), and many other specific vocations 7) that a student can prepare for at a university.
2) Fill in the gaps with pronouns from the box. Some of them can be used more than once.
| It (4) this which (3) them its |
Why does man use metals still so much today when there are other materials, especially plastics, 1) …………… are available? A material is generally used because 2) …………… offers the required strength, and other properties, at minimum cost. The main advantage of metals is their strength and toughness.
Plastics are lighter and more corrosion-resistant, but they are not usually as strong. Another problem with plastics is what to do with 3) …………… after use. Metal objects can often be recycled; plastics can only be dumped or burned. Not all metals are strong, however. Copper and aluminum, for example, are both fairly weak — but if they are mixed together, the result is an alloy called aluminum bronze, 4) …………… is much stronger than either pure copper or pure aluminum.
The properties of a metal can be further improved by use of heat treatment. 5) …………… usually consists of heating the metal or alloy to a selected temperature below 6) …………… melting point and then cooling 7) …………… at a certain rate to obtain those properties which are required. For example, hardening is used to make metals harder. Tempering makes them softer and less brittle. Annealing is carried out to make a metal soft so that 8) …………… can be machined more easily. Methods of extracting, producing, and treating metals are being developed all the time to meet engineering requirements. 9) …………… means that there is an enormous variety of metals and metallic materials available from 10) ……………to choose.
Unit 4
1) Explain the necessity of using italicized articles in the following passage
At 1)the core of science's self-modification is technology. New tools enable new structures of knowledge and new ways of discovery. 2)The achievement of science is to know new things; 3) the evolution of science is to know them in new ways. What evolves is less 4) the body of what we know and more 5) the nature of our knowing. I'm willing to bet 6) the scientific method 400 years from now will differ from today's understanding of science more than today's science method differs from 7) the proto-science used 400 years ago. 8) A sensible forecast of technological innovations in 9) next 400 years is beyond our imaginations (or at least mine), but we can fruitfully envision technological changes that might occur in 10) the next 50 years.
2) Fill in the gaps with the correct article where necessary
Ever since 1) ………….. Soviet Union fell apart in 1991, 2) ………….. Russian leaders have been vowing to transform their old-line, industrial society into 3) …………… modern, knowledge-based economy driven by 4) …………… innovative science and technology. Unfortunately, that transformation continues to be hobbled by outdated attitudes at 5) …………… top of Russia’s academic hierarchy. 6) ………….. small, but telling example came to light last month when 7) ……….. popular online newspaper gazeta.ru published 8) …………… interview with Yuri Osipov (in Russian), president of 9) …………… Russian Academy of Sciences in Moscow. Pressed by 10) …………… reporter about the very low citation rate for articles published in Russian-language science journals, Osipov dismissed 11) …………… relevance of citation indices, questioned 12) …………… need for Russian scientists to publish in foreign journals and said that any top-level specialist “will also study Russian and read papers in Russian”.
Unit 5
1) Explain the necessity of using italicized linking words and phrases in the following passage
During the past several decades the conference has redefined other base SI units to vastly improve their accuracy and 1)thus keep them in step with the advancement of scientific and technological understanding. The standards for the meter and the second, 2) for example, are now founded on natural phenomena. The meter is tied to the speed of light, 3)whereas the second has been related to the frequency of microwaves emitted by a specific element during a certain transition between energy states. Today the kilogram is the last remaining SI unit still based on a unique man-made object. Metrologists (specialists in measurement) are 4)therefore striving to define mass using techniques depending only on unchanging properties of nature. 5)Because scientists measure constants in SI units (including the kilogram), any drift in the IPK's real mass will give rise to a drift in the value of a measured constant – a seeming paradox for what is commonly considered an immutable phenomenon. In the process of more accurately redefining the kilogram independently of the IPK, 6)however, scientists will choose a best estimate of the constant's value and 7)thus “fix” it.
2) Combine sentences wherever possible. Use linking words.
1) A robot is a mechanical device that can perform boring, dangerous, and difficult tasks. 2) First of all, robots can perform repetitive tasks without becoming tired or bored. 3) They are used in automobile factories to weld and paint. 4) Robots can also function in hostile environments. 5) They are useful for exploring the ocean bottom as well as deep outer space. 6) Finally, robots can perform tasks requiring pinpoint accuracy. 7) 1n the operating room, robotic equipment can assist the surgeon. 8) For instance, a robot can kill a brain tumor. 9) It can operate on a fetus with great precision. 10) The field of artificial intelligence is giving robots a limited ability to think and to make decisions. 11) However, robots cannot think conceptually. 12) Robots cannot function independently. 13) Humans have to program them. 14) They are useless. 15) Therefore, humans should not worry that robots will take over the world-at least not yet.
Unit 6
1) Explain the necessity of using italicized pronouns in the following passage
Metrologists ascertained the mass of the crystal sphere by “substitution weighing” using a conventional balance and a “tare mass,” 1)whose mass must be stable but need not be known. 2) They placed the sphere on a balance and compared 3)it against a separate one-kilogram tare mass sitting on the other arm of the balance. 4)They then substituted the sphere with a mass known in terms of the IPK mass standard and repeated the weighing process. Because the substitution was carried out so that the balance remained unaffected by the switch, the difference in the two readings gave the difference in mass between the sphere and the mass standard, 5)which revealed the mass of the sphere. This method eliminated error arising from factors such as unequal lengths of the balance arms. The researchers also analyzed other samples of the silicon material to establish the relative abundance of the various isotopes to account for their differing contributions to the molar mass of the sphere. To accomplish this task, 6)they had to determine the proportion of the three isotopes – silicon 28, silicon 29 and silicon 30 – present in the natural silicon crystal. For this step they used mass spectroscopy, 7)which separates charged isotopes according to their different charge-to-mass ratios.
2) Fill in the gaps with pronouns from the box. Some of them can be used more than once.
| It (4) that (2) this its |
The Russian Academy of Sciences was founded in 1725. 1) …………… is the chief coordinating body for scientific research in Russia through 2) …………… science councils and commissions. 3) …………… means that it controls network of nearly 100 research institutes. 4) …………… has sections of physical, technical, and mathematical sciences; chemical, technological, and biological sciences, and earth sciences, and controls a network of nearly 300 research institutes. The Russian Academy of Agricultural Sciences, 5) …………… was founded in 1929, has departments of plant breeding and genetics; arable farming and the use of agricultural chemicals; feed and fodder crops production; plant protection. 6) …………… controls a network of nearly 100 research institutes. 7) …………… supervises a number of research institutes, experimental and breeding stations, dendraria and arboreta. The Russian Federation in 2002 had 3,415 scientists and engineers, and 579 technicians engaged in research and development (R and D) per million people. Of 8) …………… amount, the largest portion, 58.4%, came from government sources, while business accounted for 30.8%.
Unit 7
1) Explain the necessity of using italicized articles in the following passage
Skolkovo is 1) the centerpiece of Medvedev’s drive to create 2) a new kind of economy. 3) A nondescript Soviet-era suburb 40 kilometers outside Moscow, Skolkovo is already home to Russia’s leading business school, which is (crucially) private but receives some state research money. 4) The new innovation city is inspired by 5) the relationship between Stanford University and Silicon Valley, or 6) the Massachusetts Institute of Technology and 7) the Route 128 tech firms outside Boston: 8) a place where academic brains can find 9) the private and government money they need to launch startup companies. 10) The new Skolkovo will be “11) a real city of 12) the future,” says oil baron Viktor Vekselberg, Russia’s 10th-richest man and Medvedev’s choice to organize 13) the business side of Skolkovo, selecting 14) the best ideas for 15) the state to back as startups. Construction is already underway on 16) a 300-hectare plot that will be protected by walls and gates.
2) Fill in the gaps with the correct article where necessary
1) ............... question raised became known as 2) ……………. Poincaré conjecture. Over 3) …………… years, many outstanding mathematicians tried to solve it--Poincaré himself, Whitehead, Bing, Papakirioukopolos, Stallings, and others. While their efforts frequently led to 4) …………… creation of significant new mathematics, each time 5) …………… flaw was found in the proof. In 1961 came astonishing news. Stephen Smale, then of the University of California at Berkeley (now at the City University of Hong Kong) proved that 6) ………….. analogue of the Poincaré conjecture was 7) …………… true for spheres of five or more dimensions. The higher-dimensional version of the conjecture required 8) …………… more stringent version of Poincaré's test; it asks whether 9) …………… so-called homotopy sphere is 10) …………… true sphere. Smale's theorem was 11) ……………. achievement of extraordinary proportions. It did not, however, answer Poincaré's original question. The search for an answer became all the more 12) …………… alluring.
Unit 8
1) Explain the necessity of using italicized linking words and phrases in the following passage
The inconstancy that plagues the definition of the kilogram previously affected the second and the meter. Scientists once defined the second in terms of the rate of rotation of the earth. In 1967, 1)however, they redefined it to be “the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.” Metrologists introduced this change because the rotation rate of our planet is not constant, 2)whereas the wavelength of the radiation emitted by cesium 133 during a specific transition. 3)Although this definition is not based on an artifact, it suffers from its dependence on a particular transition of a specific atom, which unfortunately turns out to be more sensitive to electromagnetic fields than is desirable. 4) Unfortunately, the definition may need to be changed in the future to accommodate the even more precise optical clocks that physicists are now developing. The definition of the meter, 5)on the other hand, is firmer. 6)All in all, this definition should also be resilient because it fixed the value of a key physical constant, the speed of light, at exactly 299,792,458 meters a second. 7)Thus, progress in the control and measurement of the frequency of electromagnetic radiation (the number of sinusoidal vibrations a second) will merely improve the accuracy with which scientists can measure the meter – with no change in the unit’s definition required.
2) Fill in the gaps with the linking words from the box
| So by the way thus despite of the fact as for example as a consequence as a matter of fact according to while |
1) …………… that today many university science and technology departments, 2) …………… at Oxford, Cambridge, Manchester, Imperial College London, and Strathclyde, are among the best in Europe, there is a concern about its value in the future. 3) ……… statistics, Academics' pay has fallen so far behind other professions and behind academic salaries elsewhere, 4) ………….. many of the best brains have gone abroad. 5) ………….. adequate pay and sufficient research funding to keep the best in Britain remains a major challenge. 6) …………… with the schools system, 7) …………… also with higher education: there is a real problem about the exclusivity of Britain's two oldest universities. 8) …………… Oxbridge is no longer the preserve of a social elite, it retains its exclusive, narrow and spell-binding culture. 9) …………… it creates a narrow social and intellectual channel from which the nation's leaders are almost exclusively drawn together with the public school system. 10) ……………. in 1996 few people were in top jobs in the Civil Service, the armed forces, the law or finance, who had not been either to a public school or Oxbridge, or to both.
Unit 9
1) Explain the necessity of using italicized pronouns in the following passage
A growing body of scientific evidence indicates that since 1950 the world's climate has been warming. 1) It’s a result of emissions from unfettered burning of fossil fuels and the razing of tropical forests. 2) This adds to the atmosphere's invisible blanket of carbon dioxide and other heat-trapping "greenhouse" gases. Recent research has shown that methane, 3)which flows from landfills, livestock and oil and gas facilities, is a close second to carbon dioxide in impact on the atmosphere. Other questions have persisted despite a century-long accumulation of studies 4)that point to human-driven warming. The rate and extent at 5)which sea levels will rise in this century as ice sheets erode remains highly uncertain, even as the long-term forecast of centuries of retreating shorelines remains intact. Scientists are struggling more than ever to disentangle how the heat building in the seas and atmosphere will affect the strength and number of tropical cyclones. The latest science suggests there will be more hurricanes and typhoons 6)that reach the most dangerous categories of intensity, but fewer storms over all. Government figures for the global climate show that 2010 was the wettest year in the historical record, and 7)it tied 2005 as the hottest year since record-keeping began in 1880.
2) Fill in the gaps with pronouns from the box. Some of them can be used more than once.
| In addition to that furthermore it (2) those as well as (2) this which |
The cooperation program accounts for over 60% of the available funding. 1) ………….. allows European researchers to work together on collaborative research projects to advance knowledge, to propose solutions to some of the major issues facing us today and to develop new technologies for the future. 2) …………… this fact, 3) …………… promotes cooperation among universities, industry and research centers across the European Union, 4) ………….. with the rest of the world. 5) ………….. this program focuses on research in: health; food, agriculture and biotechnology; information and communication technologies. The ideas program is implemented through a new body, the European Research Council (ERC), 6) …………… provides on average 1 billion Euro per year for investigator-driven frontier research in cutting-edge, “risky” areas. The first call for proposals focuses on early-stage independent investigators – 7) …………… ready to set up their own team for the first time. Future calls will cater to all experience levels. The people program provides increased funding for Marie Curie actions, 8) …………. promote the training and mobility of researchers at all research career stages. 9) ………….. includes fellowships for Europeans wanting to work in another European country; specific international activities to fund non-European researchers to work in Europe and to fund Europeans to work outside Europe; 10) …………… reintegration grants for European researchers to return to Europe from abroad.
Unit 10
1) Explain the necessity of using italicized articles in the following passage
In some ways Medvedev’s plan to create 1)a legitimate outlet for tech talent is quintessentially Soviet. 2) The idea of a city for scientists harks back to Stalin’s purpose-built tech cities within 3)the Gulag where selected scientists worked in conditions of privilege – and hatched such breakthroughs as 4) the Soviet atom bomb. But in this era “you can’t have 5) a centrally planned innovative economy,” warns Vladislav Inozemtsev, director of 6)the Moscow-based Center for Post-Industrial Studies. “Nowhere in 7) the world has a Silicon Valley blossomed because of decrees issued by bureaucrats, even if 8)the decrees are backed up by government financing.”
9) The failure of central planning does not necessarily spell doom for Skolkovo, because Medvedev is guided by 10)a more modern vision of how to use subsidies to steer business development. Medvedev is pushing innovation as one of his “four I’s,” or pillars of modernization, 11)the others being institutions, infrastructure, and investment. But truth be told, he’s not making much progress. Russia built just 1,000 kilometers of roads last year, compared with 12)the 47,000 kilometers built by China.
2) Fill in the gaps with the correct article where necessary
Global talks on climate change opened in Cancún, Mexico, in 1) …………… late 2010 with 2) …………… toughest issues unresolved, and 3) …………… conference produced modest agreements. But while 4) …………… measures adopted in Cancún are likely to have scant near-term impact on the warming of 5) …………… planet, the international process for dealing with the issue got 6) …………… significant vote of confidence. In the United States, on Jan. 2, 2011, the Environmental Protection Agency imposed its first regulations related to greenhouse gas emissions. 7) ………….. immediate effect on 8) …………… utilities, refiners and major manufacturers will be small, with 9) …………… new rules applying only to those planning to build large new facilities or make major modifications to existing plants. President Obama vowed as 10) …………… candidate that he would put 11) …………… United States on 12) …………… path to addressing climate change by 13) …………… reducing emissions of carbon dioxide and other greenhouse gas pollutants. He offered Congress wide latitude to pass climate change legislation, but held in reserve 14) …………… threat of E.P.A. regulation if it failed to act. The deeply polarized Senate’s refusal to enact 15) …………… climate change legislation essentially called his bluff.
Unit 11 Revision
1) Explain the necessity of using italicized articles, linking words, and pronouns in the following passage
1) The present definition of 2)the kilogram requires that all SI mass measurements carried out in the world be related to 3)the mass of the IPK. (“Mass” is commonly equated with “weight,” 4) but technically 5) the “mass” of 6)an object refers to 7)the amount of matter in 8)it, 9)whereas 10) its “weight” is caused by 11) the gravitational attraction between 12)the object and 13)the earth.) To forge 14)this link, metrologists remove the IPK from 15) its sanctuary every 40 years or so to calibrate 16)the copies of 17)the IPK 18)that are sent to 19)the International Bureau of Weights and Measures by 20) the 51 national signatories of 21)the “Meter Convention” – 22)the treaty 23)that governs the SI. Once equilibrated, 24)these copies are used to calibrate all other mass standards of 25) the member states in 26)a long, unbroken sequence 27)that propagates down to 28) the weighing scales and other instruments employed in laboratories and factories around 29)the globe. 30)It makes economic sense to have 31)a stable, unchanging standard of mass, 32)but evidence indicates that the mass of the IPK drifts with time. By observing relative changes of 33)the other mass standards fabricated at 34)the same time as 35)the IPK and by analyzing old and new measurements of mass-related fundamental constants (36)which are thought not to change significantly over time), scientists have shown that 37)the mass of the IPK could have grown or shrunk by 50 micrograms or more over the past 100 years.
2) Find and correct the sentence structure errors in the following article
In my child development classes, I’m learning about ways of keep girls interested in technology. Studies shows that girls and boys begin their school years equally interested in technology. After elementary school is the time that computers are less of an interest for girls. To sum up, boys keep up with computers and other technology throughout their educations more than girls, they get ahead in these the fields. Experts have come up with some suggestions for teachers and parents of girls to help them.
Girls need opportunities to experiment with computers. Despite of the fact that girls spend time on computers, but they usually just do their assignments then they log off. Since computer games and programs are often aimed at boys. Parents and teachers need to buy computer products that will challenge girls not only in literature and art, but also in math, science, and business is important.
Another suggestion is to put computers in places where girls can socialize. One reason many boys stay interested in technology is that it is something he can do on his own. Girls tend to be more interested in working with others and to share activities. Furthermore computer terminals are placed close to one another, girls work at them for much longer periods of time. To begin with, parents and teachers need to be aware that nothing beats positive role models. Teach them about successful women in the fields of business, scientific, and technology. Otherwise the earlier we start interesting girls in these fields, the better.
Unit 12 Revision
1) Explain the necessity of using italicized articles, linking words, and pronouns in the following passage
Global warming has become perhaps 1) the most complicated issue facing world leaders. 2)On the one hand, warnings from 3)the scientific community are becoming louder, as 4) an increasing body of science points to rising dangers from 5) the ongoing buildup of human-related greenhouse gases — produced mainly by 6) the burning of fossil fuels and forests. 7) On the other, 8) the technological, economic 9) and political issues 10)that have to be resolved before 11) a concerted worldwide effort to reduce emissions can begin have gotten no simpler, particularly in 12) the face of 13) a global economic slowdown. Global talks on climate change opened in Cancún, Mexico, in late 2010 with 14) the toughest issues unresolved, 15) and 16) the conference produced modest agreements. 17) But 18) while the measures adopted in Cancún are likely to have scant near-term impact on 19) the warming of 20) the planet, 21) the international process for dealing with 22) the issue got 23) a significant vote of confidence. 24) The agreement fell well short of 25) the broad changes scientists say are needed to avoid dangerous climate change in coming decades. But it laid 26) the groundwork for stronger measures in 27) the future, if nations are able to overcome 28) the emotional arguments 29) that have crippled climate change negotiations in recent years.
2) Fill in the gaps with the correct articles, linking words, and pronouns
Computer science began to be established as 1) …………… distinct academic discipline in 2) ………….. 1950s and early 1960s. 3) …………… aim is more on understanding 4) …………… properties of the programs used to implement software such as games and web-browsers, and using 5)…………… understanding to create new programs or improve existing ones.
6) …………… mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). 7) ………….. were the size of 8) ………….. large room, consuming as much power as several hundred modern personal computers. Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy 9) ………….. fraction of 10) ………….. space. Simple computers are small enough to fit into small pocket devices, and can be powered by 11) ………….. small battery. Personal computers in their various forms are icons of 12) ………….. Information Age and are what most people think of as “computers”. 13) ………….., the embedded computers found in many devices from MP3 players and toys to industrial robots are 14) ………….. most numerous. 15) ………….., the number of computers that are networked is growing phenomenally. 16) …………… very large proportion of personal computers regularly connect to 17) …………… Internet to communicate and receive information. “Wireless” networking often utilizing mobile phone networks. 18) ………….. has meant networking is becoming increasingly ubiquitous even in mobile computing environments.