Иностранный язык – страница 91
1 Прочитайте текст и выполните задания
Digital electronics
1. Computers understand only two numbers, 0 and 1, and do all their arithmetic operations in this binary mode. Many electrical and electronic devices have two states: they are either off or on. Because computers have been a major application for integrated circuits from their beginning, digital integrated circuits have become commonplace. It has thus become easy to design electronic systems that use digital language to control their functions and to communicate with other systems.
2. A major advantage in using digital methods is that the accuracy of a stream of digital signals can be verified, and, if necessary, errors can be corrected. An example is the sound from a phonograph record, which always contains some extraneous sound from the surface of the recording groove even when the record is new. Contrast this with the sound from a digital compact disc recording. The disc and the player contain error-correcting features that remove any incorrect pulses (perhaps arising from dust on the disc) from the information as it is read from the disc.
3. As electronic systems become more complex, it is essential that errors produced by noise be removed; otherwise, the systems may malfunction. Many electronic systems are required to operate in electrically noisy environments, such as in an automobile. The only practical way to assure immunity from noise is to make such a system operate digitally.
4. Any electrical system generates some noise, and all electronic systems are to some degree susceptible to disturbance from noise. The noise may be conducted along wires connected to the system, or it may be radiated through the air. Care is necessary in the design of systems to limit the amount of noise that is generated and to shield the system properly to protect it from external noise sources.
(Encyclopedia Britannica)
Укажите, в какой части текста (1, 2, 3, 4) содержится ответ на вопрос
Why is it necessary to delete any errors caused by noise?
Digital electronics
1. Computers understand only two numbers, 0 and 1, and do all their arithmetic operations in this binary mode. Many electrical and electronic devices have two states: they are either off or on. Because computers have been a major application for integrated circuits from their beginning, digital integrated circuits have become commonplace. It has thus become easy to design electronic systems that use digital language to control their functions and to communicate with other systems.
2. A major advantage in using digital methods is that the accuracy of a stream of digital signals can be verified, and, if necessary, errors can be corrected. An example is the sound from a phonograph record, which always contains some extraneous sound from the surface of the recording groove even when the record is new. Contrast this with the sound from a digital compact disc recording. The disc and the player contain error-correcting features that remove any incorrect pulses (perhaps arising from dust on the disc) from the information as it is read from the disc.
3. As electronic systems become more complex, it is essential that errors produced by noise be removed; otherwise, the systems may malfunction. Many electronic systems are required to operate in electrically noisy environments, such as in an automobile. The only practical way to assure immunity from noise is to make such a system operate digitally.
4. Any electrical system generates some noise, and all electronic systems are to some degree susceptible to disturbance from noise. The noise may be conducted along wires connected to the system, or it may be radiated through the air. Care is necessary in the design of systems to limit the amount of noise that is generated and to shield the system properly to protect it from external noise sources.
(Encyclopedia Britannica)
Укажите, в какой части текста (1, 2, 3, 4) содержится ответ на вопрос
Why is it necessary to delete any errors caused by noise?
2 Прочитайте текст и выполните задания
Digital electronics
1. Computers understand only two numbers, 0 and 1, and do all their arithmetic operations in this binary mode. Many electrical and electronic devices have two states: they are either off or on. Because computers have been a major application for integrated circuits from their beginning, digital integrated circuits have become commonplace. It has thus become easy to design electronic systems that use digital language to control their functions and to communicate with other systems.
2. A major advantage in using digital methods is that the accuracy of a stream of digital signals can be verified, and, if necessary, errors can be corrected. An example is the sound from a phonograph record, which always contains some extraneous sound from the surface of the recording groove even when the record is new. Contrast this with the sound from a digital compact disc recording. The disc and the player contain error-correcting features that remove any incorrect pulses (perhaps arising from dust on the disc) from the information as it is read from the disc.
3. As electronic systems become more complex, it is essential that errors produced by noise be removed; otherwise, the systems may malfunction. Many electronic systems are required to operate in electrically noisy environments, such as in an automobile. The only practical way to assure immunity from noise is to make such a system operate digitally.
4. Any electrical system generates some noise, and all electronic systems are to some degree susceptible to disturbance from noise. The noise may be conducted along wires connected to the system, or it may be radiated through the air. Care is necessary in the design of systems to limit the amount of noise that is generated and to shield the system properly to protect it from external noise sources.
(Encyclopedia Britannica)
Укажите, какой части текста (1, 2, 3, 4) соответствует следующая идея
The use of digital compact disc is more advantageous for the purity of sound.
Digital electronics
1. Computers understand only two numbers, 0 and 1, and do all their arithmetic operations in this binary mode. Many electrical and electronic devices have two states: they are either off or on. Because computers have been a major application for integrated circuits from their beginning, digital integrated circuits have become commonplace. It has thus become easy to design electronic systems that use digital language to control their functions and to communicate with other systems.
2. A major advantage in using digital methods is that the accuracy of a stream of digital signals can be verified, and, if necessary, errors can be corrected. An example is the sound from a phonograph record, which always contains some extraneous sound from the surface of the recording groove even when the record is new. Contrast this with the sound from a digital compact disc recording. The disc and the player contain error-correcting features that remove any incorrect pulses (perhaps arising from dust on the disc) from the information as it is read from the disc.
3. As electronic systems become more complex, it is essential that errors produced by noise be removed; otherwise, the systems may malfunction. Many electronic systems are required to operate in electrically noisy environments, such as in an automobile. The only practical way to assure immunity from noise is to make such a system operate digitally.
4. Any electrical system generates some noise, and all electronic systems are to some degree susceptible to disturbance from noise. The noise may be conducted along wires connected to the system, or it may be radiated through the air. Care is necessary in the design of systems to limit the amount of noise that is generated and to shield the system properly to protect it from external noise sources.
(Encyclopedia Britannica)
Укажите, какой части текста (1, 2, 3, 4) соответствует следующая идея
The use of digital compact disc is more advantageous for the purity of sound.
3 Прочитайте текст и выполните задания
Digital electronics
1. Computers understand only two numbers, 0 and 1, and do all their arithmetic operations in this binary mode. Many electrical and electronic devices have two states: they are either off or on. Because computers have been a major application for integrated circuits from their beginning, digital integrated circuits have become commonplace. It has thus become easy to design electronic systems that use digital language to control their functions and to communicate with other systems.
2. A major advantage in using digital methods is that the accuracy of a stream of digital signals can be verified, and, if necessary, errors can be corrected. An example is the sound from a phonograph record, which always contains some extraneous sound from the surface of the recording groove even when the record is new. Contrast this with the sound from a digital compact disc recording. The disc and the player contain error-correcting features that remove any incorrect pulses (perhaps arising from dust on the disc) from the information as it is read from the disc.
3. As electronic systems become more complex, it is essential that errors produced by noise be removed; otherwise, the systems may malfunction. Many electronic systems are required to operate in electrically noisy environments, such as in an automobile. The only practical way to assure immunity from noise is to make such a system operate digitally.
4. Any electrical system generates some noise, and all electronic systems are to some degree susceptible to disturbance from noise. The noise may be conducted along wires connected to the system, or it may be radiated through the air. Care is necessary in the design of systems to limit the amount of noise that is generated and to shield the system properly to protect it from external noise sources.
(Encyclopedia Britannica)
Определите основную идею текста.
Digital electronics
1. Computers understand only two numbers, 0 and 1, and do all their arithmetic operations in this binary mode. Many electrical and electronic devices have two states: they are either off or on. Because computers have been a major application for integrated circuits from their beginning, digital integrated circuits have become commonplace. It has thus become easy to design electronic systems that use digital language to control their functions and to communicate with other systems.
2. A major advantage in using digital methods is that the accuracy of a stream of digital signals can be verified, and, if necessary, errors can be corrected. An example is the sound from a phonograph record, which always contains some extraneous sound from the surface of the recording groove even when the record is new. Contrast this with the sound from a digital compact disc recording. The disc and the player contain error-correcting features that remove any incorrect pulses (perhaps arising from dust on the disc) from the information as it is read from the disc.
3. As electronic systems become more complex, it is essential that errors produced by noise be removed; otherwise, the systems may malfunction. Many electronic systems are required to operate in electrically noisy environments, such as in an automobile. The only practical way to assure immunity from noise is to make such a system operate digitally.
4. Any electrical system generates some noise, and all electronic systems are to some degree susceptible to disturbance from noise. The noise may be conducted along wires connected to the system, or it may be radiated through the air. Care is necessary in the design of systems to limit the amount of noise that is generated and to shield the system properly to protect it from external noise sources.
(Encyclopedia Britannica)
Определите основную идею текста.
The transmission of signals over a distance for the purpose of communication is …
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Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Определите, какое утверждение соответствует содержанию текста.
Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Определите, какое утверждение соответствует содержанию текста.
6 Прочитайте текст и выполните задания
Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Завершите утверждение согласно содержанию текста.
Charter schools are particularly popular with …
Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Завершите утверждение согласно содержанию текста.
Charter schools are particularly popular with …
7 Прочитайте текст и выполните задания
Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Ответьте на вопрос.
What are the peculiarities with charter schools?
Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Ответьте на вопрос.
What are the peculiarities with charter schools?
8 Прочитайте текст и выполните задания
Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Определите основную идею текста.
Charter schools of the USA
1. Charter schools are public schools that are independent of any local school district. National surveys of charter school have found high levels of satisfaction among parents, pupils and teachers associated with then. Charter schools were especially well received by poor and minority families.
2. Charter school is a movement toward school reform that focuses on improving education, pupil autonomy and choice. A charter school may be a separate school with separate funding, or it can be a school within a school. Typically, most new charter schools around the country are small.
3. The quality is measured by test scores. If the quality is good, the schools enjoy success. If it is not good, they'll fail and lose their financing – this is a powerful motive to offer a high-quality program. Charter schools are usually formed by a group of teachers, parents, and/or community leaders who want to make contributions to education reform.
Определите основную идею текста.
Every move you make and every expression of your face is a far more powerful form of ________ than anything you can say in words.
The _______ insisted that psychology should rely only on data that can be empirically measured.
11 Заполните пропуск
In ecology a niche is a term describing the relational position of a species or population in an _______.
In ecology a niche is a term describing the relational position of a species or population in an _______.
12 Заполните пропуск
The _______ is only the very thin surface layer which extends from 11,000 meters below sea level to 15,000 meters above.
The _______ is only the very thin surface layer which extends from 11,000 meters below sea level to 15,000 meters above.
It’s necessary to get practical ________of work and to get deep knowledge in different fields of science.
The type of psychologists who study how people influence one another, especially in groups is called …
15 Прочитайте текст и выполните задания
Cognitive theories
1. Cognitive theories are appropriate to the school situation, for they are concerned with knowing and thinking. They assume that perceiving and doing, shown in manipulation and play, precede the capacity to symbolize, which in turn prepares for comprehensive understanding. Although the sequence of motor-perceptual experience followed by symbolic representation has been advocated for a long time, Jean Piaget offered the first penetrating account of this kind of intellectual growth. His views have exercised great influence on educators.
2. Cognitive theories of learning also assume that the complete act of thought follows a fairly common sequence, as follows: arousal of intellectual interest; preliminary exploration of the problem; formulation of ideas, explanations, or hypotheses; selection of appropriate ideas; and verification of their suitability.
3. Teaching based on cognitive theories of learning recognizes, first, the growth in quality of intellectual activity and capitalizes on this knowledge by organizing instruction to anticipate the next stage in development but does not await it; otherwise there would be no instruction; i.e., instruction should pace development but not outstrip it. Second, it seeks to tune the learning situation to the sequences of the complete act of thought and to arrange, simplify, and organize the subject matter accordingly. Some educators emphasize strongly the arousal phase; in many modern science curricula there is, thus, the idea of inquiry training, which tries to arouse in the child a spontaneous rather than a directed interest. Other educators are concerned more with the middle intellectual phases of the thinking sequence — especially the playing with hypotheses or hunches and the working with organizing ideas and concepts.
4. Once started, the motivation of cognitive learning depends less on notions of reinforcement and more on standards of intellectual achievement generated by the learner himself. Accordingly, the learner may begin to have aspirations and to set himself future standards that are influenced by his past performances and those of his fellows.
(Encyclopedia Britannica)
Определите, какое утверждение соответствует содержанию текста.
Cognitive theories
1. Cognitive theories are appropriate to the school situation, for they are concerned with knowing and thinking. They assume that perceiving and doing, shown in manipulation and play, precede the capacity to symbolize, which in turn prepares for comprehensive understanding. Although the sequence of motor-perceptual experience followed by symbolic representation has been advocated for a long time, Jean Piaget offered the first penetrating account of this kind of intellectual growth. His views have exercised great influence on educators.
2. Cognitive theories of learning also assume that the complete act of thought follows a fairly common sequence, as follows: arousal of intellectual interest; preliminary exploration of the problem; formulation of ideas, explanations, or hypotheses; selection of appropriate ideas; and verification of their suitability.
3. Teaching based on cognitive theories of learning recognizes, first, the growth in quality of intellectual activity and capitalizes on this knowledge by organizing instruction to anticipate the next stage in development but does not await it; otherwise there would be no instruction; i.e., instruction should pace development but not outstrip it. Second, it seeks to tune the learning situation to the sequences of the complete act of thought and to arrange, simplify, and organize the subject matter accordingly. Some educators emphasize strongly the arousal phase; in many modern science curricula there is, thus, the idea of inquiry training, which tries to arouse in the child a spontaneous rather than a directed interest. Other educators are concerned more with the middle intellectual phases of the thinking sequence — especially the playing with hypotheses or hunches and the working with organizing ideas and concepts.
4. Once started, the motivation of cognitive learning depends less on notions of reinforcement and more on standards of intellectual achievement generated by the learner himself. Accordingly, the learner may begin to have aspirations and to set himself future standards that are influenced by his past performances and those of his fellows.
(Encyclopedia Britannica)
Определите, какое утверждение соответствует содержанию текста.