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Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

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. You must answer the police’s questions truthfully: otherwise, you will get into trouble.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 863 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. He was the only .................. that was offered the job.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 83 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

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. Help and supports are rapidly sent to wherever there are victims of catastrophe.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 12.2 K lượt xem 6 năm trước
Tổng hợp đề ôn thi THPTQG môn Hóa Học cực hay có lời giải (Đề số 7)

Cho 0,04 mol một hỗn hợp X gồm CH2=CH-COOH, CH3COOH và CH2=CH-CHO phản ứng vừa đủ với dung dịch chứa 6,4 gam brom. Mặt khác, để trung hòa 0,04 mol X cần dùng vừa đủ 40 ml dung dịch NaOH 0,75M. Khối lượng của CH2=CH-COOH trong X là: 

Hóa học Tốt nghiệp THPT
Xem chi tiết 459 lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

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. She was so insubordinate that she lost her job within a week.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.6 K lượt xem 1 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. You can meet Mr. Pike, who is .................. behalf .................. the university to solve the problems of foreign students.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.5 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

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. There has been insufficient rainfall over the past two years, and farmers are having trouble.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 0.9 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. Taking part in the Advanced Engineering Project gave me a chance to use my .................. to help society.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 20.2 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

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

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.9 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. I made my .................. to that company for a job a month ago but I haven’t received any reply yet.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 8 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

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

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 7.9 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

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.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 708 lượt xem 6 năm trước
Tổng hợp đề ôn luyện THPTQG Hóa học có lời giải chi tiết (Đề số 18)

Hỗn hợp X gồm Fe3O4 và CuO. Cho 25,4 gam X phản ứng với CO nung nóng, sau một thời gian thu được hỗn hợp rắn Y và hỗn hợp khí Z. Cho Z tác dụng với dung dịch Ba(OH)2 dư, thu được 9,85 gam kết tủa. Hòa tan hết Y trong 120 gam dung dịch HNO3 63% đun nóng thu được dung dịch T và 3,92 lít (đktc) khí NO2 (sản phẩm khử duy nhất). Cho V (lít) dung dịch NaOH 1M vào dung dịch T, phản ứng hoàn toàn tạo ra kết tủa với khổi lượng lớn nhất. Phần trăm khối lượng Fe3O4 và giá trị V nhỏ nhất là

Hóa học Tốt nghiệp THPT
Xem chi tiết 333 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Higher vocational (A) education and training that combines (B) teaching of both practical (C) skills and theoretical (D) expertise.  

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 25.8 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 21)

Mark the ltter 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.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 6.6 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

Higher education is very importance (A) to national economies (B), and it is also a source source of trained and educated (C) personnel for the whole country (D).

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 46.6 K lượt xem 6 năm trước
Tổng hợp đề ôn thi THPTQG môn Hóa Học cực hay có lời giải (Đề số 7)

Cho 2,9 gam một anđehit phản ứng hoàn toàn với lượng dư AgNO3 trong dung dịch NH3 thu được 21,6 gam Ag. Công thức cấu tạo thu gọn của anđehit là 

Hóa học Tốt nghiệp THPT
Xem chi tiết 542 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Economics (A) have been developed (B) rapidly (C) since (D) the last few years.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 10.5 K lượt xem 6 năm trước
Tổng hợp đề ôn thi THPTQG môn Hóa Học cực hay có lời giải (Đề số 7)

Đốt cháy 2 ankin X, Y kế tiếp thu được thể tích hơi H2O gấp 0,6 lần thể tích CO2 ở cùng điều kiện. Công thức phân tử của X, Y lần lượt là

Hóa học Tốt nghiệp THPT
Xem chi tiết 543 lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. She buys a lot of new dresses every month. She always dresses shabbily.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 14.1 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. He didn’t take his father’s advice. That’s why he is out of work.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 531 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

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

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 587 lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. There are many (A) frequently (B) mentioned reasons why one out of (C) four arrests (D) involve a juvenile.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 532 lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. In the 1920s, Tulsa had a (A) higher number of (B) millionaire than any (C) other U.S. (D) city.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 7.9 K lượt xem 6 năm trước
Tổng hợp đề ôn luyện THPTQG Hóa học có lời giải chi tiết (Đề số 18)

Tiến hành các thí nghiệm sau: (a) Cho crom vào cốc có chứa axit sunfuric đậm đặc, nguội. (b) Cho dung dịch axit sunhiric loãng vào cốc chứa dung dịch kali cromat. (c) Cho kẽm vào cốc có chứa dung dịch crom (III) clorua.   (d) Cho crom (III) oxit vào cốc có chứa dung dịch NaOH loãng ở nhiệt độ thường. Số thí nghiệm có xảy ra phản ứng hóa học là

Hóa học Tốt nghiệp THPT
Xem chi tiết 596 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

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

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 526 lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. The proposal (A) has repealed after a (B) twenty-minutes discussion (C) a number of objections to its failure (D) to include our district.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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. Bill’s English is much better than it was.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 10 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

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.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 5.5 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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. You should have persuaded him to change his mind.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.5 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. Mary left home to start an independent life. She realised how much her family meant to her

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 5.2 K lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 9)

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.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 0.9 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 455 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. Kate completed her higher education. She then decided to travel the world before getting a job

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 3 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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 _________.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề ôn thi THPTQG môn Hóa Học cực hay có lời giải (Đề số 7)

Cho 50 ml dung dịch NaOH 1M tác dụng với 50 ml dung dịch H3PO4 0,5M, muối thu được có khối lượng là

Hóa học Tốt nghiệp THPT
Xem chi tiết 0.9 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Teenagers is greatly influenced by not only their parents but also their peers

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 23.8 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 390 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. It concerns many socialogists that inadequate parents skills may lead to an increase in the number of incidents of juvenile delinquency

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 31.6 K lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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 _________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 567 lượt xem 6 năm trước
Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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?

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề ôn thi THPTQG môn Hóa Học cực hay có lời giải (Đề số 7)

Cho m gam Al phản ứng hoàn toàn với dung dịch HNO3 loãng (dư), thu được 4,48 lít khí NO (đktc, sản phẩm khử duy nhất). Giá trị của m là

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Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. It is the ASEAN Para Games that disabled athletes have an opportunity to have their talents and efforts recognised

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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?

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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 “durable” in paragraph 1 is closest in meaning to _________.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề ôn thi THPTQG môn Hóa Học cực hay có lời giải (Đề số 7)

Pha loãng dung dịch HCl có pH = 2 bao nhiêu lần để được dung dịch có pH = 3

Hóa học Tốt nghiệp THPT
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Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 1)

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. It is believed that modem farming methods have greatly improved farmers’ lives.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 35 to 42.         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 customarily associated 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 a 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. Why does the author list the characteristics of glass in paragraph 1?

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề ôn thi THPTQG môn Hóa Học cực hay có lời giải (Đề số 7)

Trong các dãy chất sau đây, dãy nào có các chất là đồng đẳng của nhau?

Hóa học Tốt nghiệp THPT
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Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 20)

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 from 28 to 34.         Esperanto is what is called a planned, or artificial, language. It was created more than a century ago by Polish eye doctor Ludwik Lazar Zamenhof. Zamenhof believed that a common language would help to alleviate some of the misunderstandings among cultures.         In Zamenhof’s first attempt at a universal language, he tried to create a language that was as uncomplicated as possible. This first language included words such as ab, ac, ba, eb, be, and ce. This did not result in a workable language in that these monosyllabic words, though short, were not easy to understand or to retain.         Next, Zamenhof tried a different way of constructing a simplified language. He made the words in his language sound like words that people already knew, but he simplified the grammar tremendously. One example of how he simplified the language can be seen in the suffixes: all nouns in this language end in o, as in the noun amiko, which means “friend”, and all adjectives end in -a, as in the adjective bela, which means “pretty”. Another example of the simplified language can be seen in the prefix mal-, which makes a word opposite in meaning; the word malamiko therefore means “enemy”, and the word malbela therefore means “ugly” in Zamenhof’s language.         In 1887, Zamenhof wrote a description of this language and published it. He used a pen name, Dr. Esperanto, when signing the book. He selected the name Esperanto because this word means “a person who hopes” in his language. Esperanto clubs began popping up throughout Europe, and by 1950, Esperanto had spread from Europe to America and Asia.         In 1905, the First World Congress of Esperanto took place in France, with approximately 700 attendees from 20 different countries. Congresses were held annually for nine years, and 4,000 attendees were registered for the Tenth World Esperanto Congress scheduled for 1914, when World War I erupted and forced its cancellation.         Esperanto has had its ups and downs in the period since World War I. Today, years after it was introduced, it is estimated that perhaps a quarter of a million people are fluent in it. This may seem like a large number, but it is really quite small when compared with the billion English speakers and billion Mandarin Chinese speakers in today’s world. Current advocates would like to see its use grow considerably and are taking steps to try to make this happen. Which paragraph describes the predecessor to Esperanto?

Tiếng Anh Tốt nghiệp THPT
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