Ngân hàng câu hỏi trắc nghiệm, tự luận Toán, Lý, Hóa

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 5: If we really _____ to succeed, we must have to work hard.

4 năm trước

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Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.Question 4

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Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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5,018

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Determining the mineral content of soil samples is an exacting process; _____________ , experts must perform detail tests to analyze soil specimens.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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982

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Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.Question 3

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Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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2,788

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Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. Question 2

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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2,292

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Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.Question 1

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Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. I tried to talk to her, but she was as high as a _____________

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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147

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. There’s a list of repairs as long as _____________ .

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Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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360

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Mary is talking to her professor in his office. - Mary: “Can you tell me how to find material for my science report, professor?” - Professor: “ _____________ ”

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Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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9,112

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. - Tim: I’m terribly sorry. I just forgot to call you yesterday. - David: _____________

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Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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2,988

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. My wife was so keen on the picture that she paid through her nose for it.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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284

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. My parent’ warnings didn’t deter me from choosing the job of my dreams.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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140

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. A chronic lack of sleep may make us irritable and reduces our motivation to work.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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163

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. I knew she was only flattering me because she wanted to borrow some money.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT 20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án

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34,685

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Glass is a remarkable substance made from the simplest raw materials. It can be colored or colorless, monochrome or polychrome, transparent, translucent, or opaque. It is lightweight impermeable to liquids, readily cleaned and reused, durable yet fragile, and often very beautiful. Glass can be decorated in multiple ways and its optical properties are exceptional. In all its myriad forms - as table ware, containers, in architecture and design - glass represents a major achievement in the history of technological developments. Since the Bronze Age about 3, 000 B.C., glass has been used for making various kinds of objects. It was first made from a mixture of silica, line and an alkali such as soda or potash, and these remained the basic ingredients of glass until the development of lead glass in the seventeenth century. When heated, the mixture becomes soft and malleable and can be formed by various techniques into a vast array of shapes and sizes. The homogeneous mass thus formed by melting then cools to create glass, but in contrast to most materials formed in this way (metals, for instance), glass lacks the crystalline structure normally associated with solids, and instead retains the random molecular structure of a liquid. In effect, as molten glass cools, it progressively stiffens until rigid, but does so without setting up a network of interlocking crystals customarilyassociated with that process. This is why glass shatters so easily when dealt a blow. Why glass deteriorates over time, especially when exposed to moisture, and why glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling. Another unusual feature of glass is the manner in which its viscosity changes as it turns from a cold substance into a hot, ductile liquid. Unlike metals that flow or freeze at specific temperatures glass progressively softens as the temperature rises, going through varying stages of malleability until it flows like thick syrup. Each stage of malleability allows the glass to be manipulated into various forms, by different techniques, and if suddenly cooled the object retains the shape achieved at that point. Glass is thus amenable to a greater number of heat-forming techniques than most other materials. According to the passage, why can glass be more easily shaped into specific forms than can metals?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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679

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Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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496

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. There are many TV commercials which distracting viewers from watching their favorite films.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT 20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án

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34,220

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Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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416

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. To his dismay, his name was not on the list.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT 20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án

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7,171

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Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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753

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Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử thpt quốc gia 2019 môn tiếng anh

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892

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. It’s very difficult to tell her to give in because she is so big-headed.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT 20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án

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21,116

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Accustomed though we are to speaking of the films made before 1927 as "silent", the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film. As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before they were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry. To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indications of mood as “pleasant”, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next. Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D.w. Griffith's film Birth of a Nation, which was released in 1915. According to the passage, what kind of business was the Edison Company?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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278

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Accustomed though we are to speaking of the films made before 1927 as "silent", the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film. As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before they were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry. To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indications of mood as “pleasant”, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next. Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D.w. Griffith's film Birth of a Nation, which was released in 1915. What can be inferred that the passage about the majority of films made after 1927?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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2,606

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Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in the position ofprimary stress in each of the following questions

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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284

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. He was asked to account for his presence at the scene of crime.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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19,412

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Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 50: Which of the following is best supported by the passage?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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362

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. It’s a pity you didn’t ask because I________you

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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3,087

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Dr. Evans has________a valuable contribution to the life of the school

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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687

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. He made me_____________they had left the district

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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539

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Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 49:According to the passage, the numerical value of the concentration level of a substance is only useful if ___________.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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251

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. - “Can you take the day off tomorrow?” - “Well, I’ll have to get_______from my boss.”

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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4,007

lượt xem

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 48: According to the passage, which of the following is true about human-generated air pollution in localized regions?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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458

lượt xem

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 47: Natural pollutants can play an important role in controlling air pollution for which of the following reasons?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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1,382

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Mark the letter A, B, c, or D on you answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. We had had very salty food. We were all dying of thirst.

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Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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4,945

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Mark the letter A, B, c, or D on you answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. He is very intelligent. He can solve all the problems in no time.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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535

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Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 46: The word "altered" is closest in meaning to _______.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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1,432

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Mark the letter A, B, c or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. People believe that 13 is an unlucky number.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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63,953

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Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 45: It can be inferred from the first paragraph that _________.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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398

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Mark the letter A, B, c or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. They were exposed to biased information, so they didn't know the true story.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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403

lượt xem

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 44: The word "adversely" is closest in meaning to ____________.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

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2,974

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Mark the letter A, B, c or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. “Never borrow money from friends”, my father said.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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1,337

lượt xem

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetaions, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled-a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air' pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentrations of these pollutants were altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil on a global basis, nature's output of these compounds dwarfs that resulting from human activities. However, human production usually occurs in a localized area, such as a city. In this localized regions, human output may be dominant and may temporarily overload the natural purification scheme of the cycle. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us littleuntil we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfurdioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, as a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm. Question 43: What does the passage mainly discuss?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

Xem chi tiết » Chia sẻ

2,940

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Glass is a remarkable substance made from the simplest raw materials. It can be colored or colorless, monochrome or polychrome, transparent, translucent, or opaque. It is lightweight impermeable to liquids, readily cleaned and reused, durable yet fragile, and often very beautiful. Glass can be decorated in multiple ways and its optical properties are exceptional. In all its myriad forms - as table ware, containers, in architecture and design - glass represents a major achievement in the history of technological developments. Since the Bronze Age about 3, 000 B.C., glass has been used for making various kinds of objects. It was first made from a mixture of silica, line and an alkali such as soda or potash, and these remained the basic ingredients of glass until the development of lead glass in the seventeenth century. When heated, the mixture becomes soft and malleable and can be formed by various techniques into a vast array of shapes and sizes. The homogeneous mass thus formed by melting then cools to create glass, but in contrast to most materials formed in this way (metals, for instance), glass lacks the crystalline structure normally associated with solids, and instead retains the random molecular structure of a liquid. In effect, as molten glass cools, it progressively stiffens until rigid, but does so without setting up a network of interlocking crystals customarilyassociated with that process. This is why glass shatters so easily when dealt a blow. Why glass deteriorates over time, especially when exposed to moisture, and why glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling. Another unusual feature of glass is the manner in which its viscosity changes as it turns from a cold substance into a hot, ductile liquid. Unlike metals that flow or freeze at specific temperatures glass progressively softens as the temperature rises, going through varying stages of malleability until it flows like thick syrup. Each stage of malleability allows the glass to be manipulated into various forms, by different techniques, and if suddenly cooled the object retains the shape achieved at that point. Glass is thus amenable to a greater number of heat-forming techniques than most other materials. The word “it” in paragraph 3 refers to_______.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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355

lượt xem

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Glass is a remarkable substance made from the simplest raw materials. It can be colored or colorless, monochrome or polychrome, transparent, translucent, or opaque. It is lightweight impermeable to liquids, readily cleaned and reused, durable yet fragile, and often very beautiful. Glass can be decorated in multiple ways and its optical properties are exceptional. In all its myriad forms - as table ware, containers, in architecture and design - glass represents a major achievement in the history of technological developments. Since the Bronze Age about 3, 000 B.C., glass has been used for making various kinds of objects. It was first made from a mixture of silica, line and an alkali such as soda or potash, and these remained the basic ingredients of glass until the development of lead glass in the seventeenth century. When heated, the mixture becomes soft and malleable and can be formed by various techniques into a vast array of shapes and sizes. The homogeneous mass thus formed by melting then cools to create glass, but in contrast to most materials formed in this way (metals, for instance), glass lacks the crystalline structure normally associated with solids, and instead retains the random molecular structure of a liquid. In effect, as molten glass cools, it progressively stiffens until rigid, but does so without setting up a network of interlocking crystals customarilyassociated with that process. This is why glass shatters so easily when dealt a blow. Why glass deteriorates over time, especially when exposed to moisture, and why glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling. Another unusual feature of glass is the manner in which its viscosity changes as it turns from a cold substance into a hot, ductile liquid. Unlike metals that flow or freeze at specific temperatures glass progressively softens as the temperature rises, going through varying stages of malleability until it flows like thick syrup. Each stage of malleability allows the glass to be manipulated into various forms, by different techniques, and if suddenly cooled the object retains the shape achieved at that point. Glass is thus amenable to a greater number of heat-forming techniques than most other materials. What must be done to release the internal stresses that build up in glass products during manufacture?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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1,791

lượt xem

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42. Diversity is a hallmark of life, an intrinsic feature of living systems in the natural world. The demonstration and celebration of this diversity is an endless rite. Look at the popularity of museums, zoos, aquariums and botanic gardens. The odder the exhibit, the more different it is from the most common and familiar life forms around us, the more successful it is likely to be. Nature does not tire of providing oddities for people who look for them. Biologists have already formally classified 1.7 million species. As many as 30 to 40 million more may remain to be classified. (1) Most people seem to take diversity for granted. If they think about it at all they assume it exists in endless supply. Nevertheless, diversity is endangered as never before in its history. Advocates of perpetual economic growth treat living species as expendable. As a result an extinction crisis of unprecedented magnitude is under way. Worse yet, when diversity needs help most, it is neglected and misunderstood by much of the scientific community that once championed it. (2) Of the two great challenges to the legitimacy of this diversity, the familiar one comes primarily from economists. Their argument, associated with such names as Julian Simon, Malcolm McPherson and the late Herman Kahn, can be paraphrased: "First, if endangered species have a value as resources - which has been greatly exaggerated - then we should be able to quantify that value so that we can make unbiased, objective decisions about which species, if any, we should bother to save, and how much the effort is worth. Secondly, the global threat to the diversity of species, particularly in the tropics, has been overestimated. Thirdly, we have good substitutes for the species and ecosystems that are being lost, and these substitutes will nullify the damage caused by the extinctions". (3) The structure of the argument seems to me to be identical in form to that of an old joke from the American vaudeville circuit. One elderly lady complained to another about her recent vacation at a resort in the Catskill Mountains in New York State. "The food was terrible", she moaned. "Pure poison, I couldn't eat a bite. And the portions were so tiny!" (4) Species may be valuable, but not especially so, and the threat to them has been exaggerated. But this does not matter anyway, say the economists, because we can replace any species that vanishes.(5) It is not clear how much of an impact this argument has on the informed public, but it has certainly provoked an outcry among scientific conservationists. It has set the terms for, and dominated, most of the pro-diversity literature of the past few years, making it a literature of response, thus limiting its scope and creative force. Question 42: The position of the scientific conservationists has been weakened because they have _________.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

Xem chi tiết » Chia sẻ

513

lượt xem

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Glass is a remarkable substance made from the simplest raw materials. It can be colored or colorless, monochrome or polychrome, transparent, translucent, or opaque. It is lightweight impermeable to liquids, readily cleaned and reused, durable yet fragile, and often very beautiful. Glass can be decorated in multiple ways and its optical properties are exceptional. In all its myriad forms - as table ware, containers, in architecture and design - glass represents a major achievement in the history of technological developments. Since the Bronze Age about 3, 000 B.C., glass has been used for making various kinds of objects. It was first made from a mixture of silica, line and an alkali such as soda or potash, and these remained the basic ingredients of glass until the development of lead glass in the seventeenth century. When heated, the mixture becomes soft and malleable and can be formed by various techniques into a vast array of shapes and sizes. The homogeneous mass thus formed by melting then cools to create glass, but in contrast to most materials formed in this way (metals, for instance), glass lacks the crystalline structure normally associated with solids, and instead retains the random molecular structure of a liquid. In effect, as molten glass cools, it progressively stiffens until rigid, but does so without setting up a network of interlocking crystals customarilyassociated with that process. This is why glass shatters so easily when dealt a blow. Why glass deteriorates over time, especially when exposed to moisture, and why glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling. Another unusual feature of glass is the manner in which its viscosity changes as it turns from a cold substance into a hot, ductile liquid. Unlike metals that flow or freeze at specific temperatures glass progressively softens as the temperature rises, going through varying stages of malleability until it flows like thick syrup. Each stage of malleability allows the glass to be manipulated into various forms, by different techniques, and if suddenly cooled the object retains the shape achieved at that point. Glass is thus amenable to a greater number of heat-forming techniques than most other materials. The words “exposed to” in paragraph 2 most likely mean________.

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

Xem chi tiết » Chia sẻ

562

lượt xem

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Glass is a remarkable substance made from the simplest raw materials. It can be colored or colorless, monochrome or polychrome, transparent, translucent, or opaque. It is lightweight impermeable to liquids, readily cleaned and reused, durable yet fragile, and often very beautiful. Glass can be decorated in multiple ways and its optical properties are exceptional. In all its myriad forms - as table ware, containers, in architecture and design - glass represents a major achievement in the history of technological developments. Since the Bronze Age about 3, 000 B.C., glass has been used for making various kinds of objects. It was first made from a mixture of silica, line and an alkali such as soda or potash, and these remained the basic ingredients of glass until the development of lead glass in the seventeenth century. When heated, the mixture becomes soft and malleable and can be formed by various techniques into a vast array of shapes and sizes. The homogeneous mass thus formed by melting then cools to create glass, but in contrast to most materials formed in this way (metals, for instance), glass lacks the crystalline structure normally associated with solids, and instead retains the random molecular structure of a liquid. In effect, as molten glass cools, it progressively stiffens until rigid, but does so without setting up a network of interlocking crystals customarilyassociated with that process. This is why glass shatters so easily when dealt a blow. Why glass deteriorates over time, especially when exposed to moisture, and why glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling. Another unusual feature of glass is the manner in which its viscosity changes as it turns from a cold substance into a hot, ductile liquid. Unlike metals that flow or freeze at specific temperatures glass progressively softens as the temperature rises, going through varying stages of malleability until it flows like thick syrup. Each stage of malleability allows the glass to be manipulated into various forms, by different techniques, and if suddenly cooled the object retains the shape achieved at that point. Glass is thus amenable to a greater number of heat-forming techniques than most other materials. According to the passage, how is glass that has cooled and become rigid different from most other rigid substances?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

Xem chi tiết » Chia sẻ

713

lượt xem

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42. Diversity is a hallmark of life, an intrinsic feature of living systems in the natural world. The demonstration and celebration of this diversity is an endless rite. Look at the popularity of museums, zoos, aquariums and botanic gardens. The odder the exhibit, the more different it is from the most common and familiar life forms around us, the more successful it is likely to be. Nature does not tire of providing oddities for people who look for them. Biologists have already formally classified 1.7 million species. As many as 30 to 40 million more may remain to be classified. (1) Most people seem to take diversity for granted. If they think about it at all they assume it exists in endless supply. Nevertheless, diversity is endangered as never before in its history. Advocates of perpetual economic growth treat living species as expendable. As a result an extinction crisis of unprecedented magnitude is under way. Worse yet, when diversity needs help most, it is neglected and misunderstood by much of the scientific community that once championed it. (2) Of the two great challenges to the legitimacy of this diversity, the familiar one comes primarily from economists. Their argument, associated with such names as Julian Simon, Malcolm McPherson and the late Herman Kahn, can be paraphrased: "First, if endangered species have a value as resources - which has been greatly exaggerated - then we should be able to quantify that value so that we can make unbiased, objective decisions about which species, if any, we should bother to save, and how much the effort is worth. Secondly, the global threat to the diversity of species, particularly in the tropics, has been overestimated. Thirdly, we have good substitutes for the species and ecosystems that are being lost, and these substitutes will nullify the damage caused by the extinctions". (3) The structure of the argument seems to me to be identical in form to that of an old joke from the American vaudeville circuit. One elderly lady complained to another about her recent vacation at a resort in the Catskill Mountains in New York State. "The food was terrible", she moaned. "Pure poison, I couldn't eat a bite. And the portions were so tiny!" (4) Species may be valuable, but not especially so, and the threat to them has been exaggerated. But this does not matter anyway, say the economists, because we can replace any species that vanishes.(5) It is not clear how much of an impact this argument has on the informed public, but it has certainly provoked an outcry among scientific conservationists. It has set the terms for, and dominated, most of the pro-diversity literature of the past few years, making it a literature of response, thus limiting its scope and creative force. Question 41: What point is the writer trying to make about the economists' arguments by including the joke in paragraph 4?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải

Xem chi tiết » Chia sẻ

515

lượt xem

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Glass is a remarkable substance made from the simplest raw materials. It can be colored or colorless, monochrome or polychrome, transparent, translucent, or opaque. It is lightweight impermeable to liquids, readily cleaned and reused, durable yet fragile, and often very beautiful. Glass can be decorated in multiple ways and its optical properties are exceptional. In all its myriad forms - as table ware, containers, in architecture and design - glass represents a major achievement in the history of technological developments. Since the Bronze Age about 3, 000 B.C., glass has been used for making various kinds of objects. It was first made from a mixture of silica, line and an alkali such as soda or potash, and these remained the basic ingredients of glass until the development of lead glass in the seventeenth century. When heated, the mixture becomes soft and malleable and can be formed by various techniques into a vast array of shapes and sizes. The homogeneous mass thus formed by melting then cools to create glass, but in contrast to most materials formed in this way (metals, for instance), glass lacks the crystalline structure normally associated with solids, and instead retains the random molecular structure of a liquid. In effect, as molten glass cools, it progressively stiffens until rigid, but does so without setting up a network of interlocking crystals customarilyassociated with that process. This is why glass shatters so easily when dealt a blow. Why glass deteriorates over time, especially when exposed to moisture, and why glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling. Another unusual feature of glass is the manner in which its viscosity changes as it turns from a cold substance into a hot, ductile liquid. Unlike metals that flow or freeze at specific temperatures glass progressively softens as the temperature rises, going through varying stages of malleability until it flows like thick syrup. Each stage of malleability allows the glass to be manipulated into various forms, by different techniques, and if suddenly cooled the object retains the shape achieved at that point. Glass is thus amenable to a greater number of heat-forming techniques than most other materials. What does the author imply about the raw materials used to make glass?

4 năm trước

Tiếng Anh (mới) Tốt nghiệp THPT Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án

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1,985

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