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If the mouse pointer jumps around rather than moving smoothly, 1_______:
1. There might be a system-hardware interrupt (IRQ) conflict. You need 2_______ so that it isn’t using an IRQ that is being used by another device. For information about changing mouse IRQ settings, 3_______ supplied with your mouse.
2. Your mouse 4_______. For instructions, see the documentation supplied with your mouse.
_______ I see the chief now? Yes, you may.
Where did Elton John sing the song “Candle in the Wind”?
The song “Candle in the Wind” by Elton John was written originally in 1973 as a tribute to Marilyn Monroe. It describes how she became popular and people followed her everywhere, making her life difficult. After the death of Princess Diana in 1997, Elton John changed the lyrics and sang it at her funeral. In the Diana version, he describes her as “the nation’s golden child” who brought happiness to so many people. It became the biggest-selling record of all time.
Tom said that he _______ awfully tired.
Peter: Hi, Paul. 1_______.
Paul: 2_______. Peter, can you tell me what you were doing yesterday from 9 till 11 p.m.? I was looking for you.
Peter: Well, let me see. A few students and I were carrying out some experiments with different electrical devices. As for me, I was measuring the voltage.
Paul: And what about Alex? Do you happen to know what he was doing?
Peter: 3_______, he was measuring the resistance of a lead.
Paul: 4_______. I hope Julia and Michael were helping him.
Peter: Yes, they were. They were connecting leads to the multimeter. The needle was indicating the value of the resistance on the scale.
A: «Would you wait half an hour, please?»
B: «____________».
Higher education in the USA is not nation-wide. Colleges differ a lot from each other in scale and level of education as well as in the “quality” of diplomas given. There are private and state universities. Private education is considered more prestigious. The most famous private university is Harvard. Higher education is rather expensive in the USA.
She managed to _______ the first difficulties.
Ben is _______ than John.
A fire _______ during the night.
Market Economies
1. In a true market economy the government plays no role in the management of the economy, the government does not intervene in it. The system is based on private enterprise with private ownership of the means of production and private supplies of capital, which can be defined as surplus income available for investment in new business activities. Workers are paid wages by employers according to how skilled they are and how many firms wish to employ them. They spend their wages on the products and services they need. Consumers are willing to spend more on products and services, which are favoured. Firms producing these goods will make more profits and this will persuade more firms to produce these particular goods rather than less favoured ones.
2. Thus, in a market economy consumers decide what is to be produced. Consumers will be willing to pay high prices for products they particularly desire. Firms, which are privately owned, see the opportunity of increased profits and produce the new fashionable and favoured products.
3. Such a system is, at first view, very attractive. The economy adjusts automatically to meet changing demands. No planners have to be employed, which allows more resources to be available for production. Firms tend to be highly competitive in such an environment. New advanced products and low prices are good ways to increase sales and profits. Since all firms are privately owned they try to make the largest profits possible.
Solar energy
1. Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of different technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on the Earth. Only a minuscule fraction of the available solar energy is used.
2. Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy’s uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, high temperature process heat for industrial purposes. To harvest the solar energy, the most common way is to use solar panels.
3. Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
Определите основную идею текста.
Teacher: «I would advise you to use these Internet sources».
Student: «_______________»
Where did Lindbergh arrive on May 20-21, 1927?
Probably the most celebrated flight in the history of aviation was that of Charles A. Lindbergh from New York to Paris in his plane, the Spirit of St. Louis. He had been working as an airmail pilot when a group of businessmen from St. Louis offered a $25,000 prize to anyone who would fly non-stop across the Atlantic to Paris.
His flight took 33.5 hours. On May 20-21, 1927, Lindbergh arrived in Paris to a tumultuous welcome and became an instant international celebrity.
At first, the Internet was used solely by the US government, but soon universities and other institutions connected themselves to the Internet to communicate with one another and collaborate on projects. The Internet grew to connect hundreds of different sites all across the world. Each organization on the Internet was responsible for maintaining its part of the network, so the Internet was not owned or controlled by any one organization.
Today, the Internet connects up to 40 million people around the globe and is growing by as much as 10 % per month.
Solar energy
1. Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of different technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on the Earth. Only a minuscule fraction of the available solar energy is used.
2. Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy’s uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, high temperature process heat for industrial purposes. To harvest the solar energy, the most common way is to use solar panels.
3. Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
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What is the difference of solar technologies?
Thermal radiation
1. Thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter. All matter with a temperature greater than absolute zero emits thermal radiation. The mechanism is that bodies with a temperature above absolute zero have atoms or molecules with kinetic energies which are changing, and these changes result in charge-acceleration and/or dipole oscillation of the charges that compose the atoms. This motion of charges produces electromagnetic radiation in the usual way. However, the side spectrum of this radiation reflects the wide spectrum of energies and accelerations of the charges in any piece of matter at even a single temperature.
2. Examples of thermal radiation include the visible light and infrared light emitted by an incandescent light bulb, the infrared radiation emitted by animals and detectable with an infrared camera, and the cosmic microwave background radiation. Thermal radiation is different from thermal convection and thermal conduction – a person near a raging bonfire feels radiant heating from the fire, even if the surrounding air is very cold.
3. Sunlight is thermal radiation generated by the hot plasma of the Sun. The Earth also emits thermal radiation, but at a much lower intensity and different spectral distribution (infrared rather than visible) because it is cooler. The Earth’s absorption of solar radiation, followed by its outgoing thermal radiation are the two most important processes that determine the temperature and climate of the Earth.
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A microwave oven
1. A microwave oven works by passing non-ionizing microwave radiation, usually at a frequency of 2.45 gigahertz (a wavelength of 12.24 centimetres), through the food. Microwave radiation is between common radio and infrared frequencies. Water, fat, and other substances in the food absorb energy from the microwaves in a process called dielectric heating.
2. Many molecules (such as those of water) are electric dipoles, meaning that they have a positive charge at one end and a negative charge at the other, and therefore rotate as they try to align themselves with the alternating electromagnetic field of the microwaves. This molecular movement represents heat which is then dispersed as the rotating molecules hit other molecules and put them into motion.
3. Microwave heating is more efficient on liquid water than on fats and sugars (which have a smaller molecular dipole moment), and also more efficient than on frozen water (where the molecules are not free to rotate). Microwave heating is sometimes explained as a resonance of water molecules, but this is incorrect: such resonance only occurs in water vapor at much higher frequencies, at about 20 GHz.
4. A common misconception is that microwave ovens cook food from the "inside out". In reality, microwaves are absorbed in the outer layers of food in a manner somewhat similar to heat from other methods. The misconception arises because microwaves penetrate dry non-conductive substances at the surfaces of many common foods, and thus often induce initial heat more deeply than other methods. Depending on water content, the depth of initial heat deposition may be several centimetres or more with microwave ovens, in contrast to infrared or convection heating, which deposit heat thinly at the food surface. Penetration depth of microwaves is dependent on food composition and the frequency, with lower microwave frequencies (longer wavelengths) penetrating better.
(Encyclopedia Wikipedia)
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Solar energy
1. Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of different technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on the Earth. Only a minuscule fraction of the available solar energy is used.
2. Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy’s uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, high temperature process heat for industrial purposes. To harvest the solar energy, the most common way is to use solar panels.
3. Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
Определите, какое утверждение соответствует содержанию текста.
Despite the pending switch to digital, analogue receivers still remain widespread. Analogue television is still transmitted in practically all countries. For analogue radio, the switch to digital is made more difficult by the fact that analogue receivers are a fraction of the cost of digital receivers. The choice of modulation for analogue radio is typically between amplitude modulation (AM) or frequency modulation (FM). To achieve stereo playback, an amplitude modulated subcarrier is used for stereo FM.
I don’t drink _______ wine.
Today, most computer users buy, download, or share programs like Microsoft Word and Excel. 1_______. Most people see their computers as tools that help them do jobs, rather than complex electronic machines they have to pre-program – and that’s just as well, because most of us have better things to do than computer programming. 2_______. In other words, although we don’t really think of it this way, the computer can be reprogrammed as many times as you like. This is why programs are also called software. 3_______. By contrast, a computer’s hardware – the bits and pieces from which it is made (and the peripherals, like the mouse and printer, you plug into it) – is pretty much fixed when you buy it. 4_______. That computers can do so many different jobs is what makes them so useful – and that’s why millions of us can no longer live without them!
Babbage, Charles (1792-1871), British mathematician and inventor, who designed and built mechanical computing machines on principles that anticipated the modern electronic computer.
In the 1820s Babbage began developing his Difference Engine, a mechanical device that could perform simple mathematical calculations. Although Babbage started to build his machine, he was unable to complete it because of a lack of funding. In the 1830s Babbage began developing his Analytical Engine, which was designed to carry out more complicated calculations, but this device was never built, too. Babbage’s book, “Economy of Machines and Manufactures” (1832), initiated the field of study known today as operational research.
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In the 1830s Babbage began developing his Analytical Engine, which was designed to carry out …
Passenger: «I have only pounds. Can you give me change?»
Bus Driver: «_______________».
Professor: «Revise Chapter 5 before testing».
Student: «_______________».
There are many superstitions in Britain. But one of the most widely held is that it is unlucky to open an umbrella in the house. 1_______. The person who opens an umbrella in fine weather is very unpopular.
It's very unlucky to walk under a ladder. If you must pass under a ladder you can avoid bad luck by crossing your fingers and keeping them crossed until you've seen a dog.
The number 13 is said to be unlucky for some. 2_______.
The worst misfortune that can befall you is breaking a mirror. That will bring you seven years of bad luck. 3_______.
And at last there is a superstition of touching wood for luck. 4_______.
1_______. First of all we advise you to choose wine and cheese for preparing a tasty dish. 2_______. You could take cheddar, for example. You need alcohol in a fondue, not just for flavour, but to lower the boiling point and stop the protein in the cheese from curding. 3_______. 4_______.
1) 15
2) 1,534
3) 153.4
4) 1534
In digital audio broadcasting, standards are much more unified with practically all countries choosing to adopt the Digital Audio Broadcasting standard (also known as the Eureka 147 standard). The exception being the United States which has chosen to adopt HD Radio. HD Radio, unlike Eureka 147, is based upon a transmission method known as in-band on-channel transmission that allows digital information to “piggyback” on normal AM or FM analogue transmissions.
It’s no use asking him about it. He has _______ knowledge of the subject.
What are the computer programs used for?
A computer to complete a job requires more than just the actual equipment or hardware we see and touch. It requires software – programs for directing the operation of a computer or electronic data.
Software is the final computer system component. These computer programs instruct the hardware how to conduct processing. The computer is merely a general-purpose machine which requires specific software to perform a given task. Computers can input, calculate, compare, and output data as information. Software determines the order in which these operations are performed.
Programs usually fall in one of two categories: system software and applications software.