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ĐỀ LUYỆN TỔNG HỢP (P6)

Cho các chất sau: CH3-CHOH-CH3 (1), (CH3)3C-OH (2), (CH3)2CH-CH2OH (3), CH3COCH2CH2OH (4), CH3CHOHCH2OH (5). Chất nào bị oxi hoá bởi CuO tạo ra sản phẩm có phản ứng tráng bạc?

Hóa học Tốt nghiệp THPT

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 17)

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. In the North American colonies, red ware, a simple pottery fired at low temperatures, and stone ware, a strong, impervious grey pottery fired at high temperatures, were produced from two different native clays. These kinds of pottery were produced to supplement imported European pottery. When the American Revolution (1775-1783) interrupted the flow of the superior European ware, there was incentive for American potters to replace the imports with comparable domestic goods. Stoneware, which had been simple utilitarian kitchenware, grew increasingly ornate throughout the nineteenth century, and in addition to the earlier scratched and drawn designs, threedimensional molded relief decoration became popular. Representational motifs largely replaced the earlier abstract decorations. Birds and flowers were particularly evident, but other subjects---lions, flags, and clipper ships---are found. Some figurines, mainly of dogs and lions, were made in this medium. Sometimes a name, usually that of the potter, was die-stamped onto a piece. As more and more large kilns were built to create the high-fired stoneware, experiments revealed that the same clay used to produce low-fired red ware could produce a stronger, paler pottery if fired at a hotter temperature. The result was yellow ware, used largely for serviceable items; but a further development was Rockingham ware---one of the most important American ceramics of the nineteenth century. (The name of the ware was probably derived from its resemblance to English brown-glazed earthenware made in South Yorkshire.) It was created by adding a brown glaze to the fired clay, usually giving the finished product a mottled appearance. Various methods of spattering or sponging the glaze onto the ware account for the extremely wide variations in color and add to the interest of collecting Rockingham. An advanced form of Rockingham was flint enamel, created by dusting metallic powders onto the Rockingham glaze to produce brilliant varicolored streaks. Articles for nearly every household activity and ornament could be bought in Rockingham ware: dishes and bowls, of course; also bedpans, foot warmers, cuspidors, lamp bases, doorknobs, molds, picture frames, even curtain tiebacks. All these items are highly collectible today and are eagerly sought. A few Rockingham specialties command particular affection among collectors and correspondingly high prices. The word “It” in paragraph 2 refers to _________.

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Bài 57. Thực hành: Vẽ sơ đồ lắp đặt mạch điện

Sơ đồ lắp đặt

Công nghệ Lớp 8

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25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 19)

Loại nucleotit nào sau đây không phải là đơn phân cấu tạo nên ADN

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 16)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Years ago, in their private family role, women quite often dominate the male members of the household. Women were quite (23) to their families. However, the public role of women has changed (24)since the beginning of World War II. During the war, men were away from home to the battle. As a (25)_women were in complete control of the home. They found themselves doing double and sometimes triple duty. They began to take over the work of their absent husbands and to work outside. They accounted for 73% of the industrial labor force. Women were forced by economic realities to work in the factories. The women (26) worked there were paid low wages, lived in crowded and small dormitories. (27)__they found themselves a place as active members of society. (Source: haps://goo.91/aeawF4) Question 25

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Bài 57. Thực hành: Vẽ sơ đồ lắp đặt mạch điện

Phân tích sơ đồ nguyên lý mạch điện

Công nghệ Lớp 8

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 2)

Các dung dịch riêng biệt: Na2CO3, BaCl2, MgCl2, H2SO4, NaOH được đánh số ngẫu nhiên (1), (2), (3), (4), (5). Tiến hành một số thí nghiệm, kết quả được ghi lại trong bảng sau: Dung dịch (1) (2) (4) (5) (1) Khí thoát ra Có kết tủa (2) Khí thoát ra Có kết tủa Có kết tủa (4) Có kết tủa Có kết tủa (5) Có kết tủa Các dung dịch (1), (3), (5) lần lượt là

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ĐỀ LUYỆN TỔNG HỢP (P6)

Cho sơ đồ: X→+2H2Y→+CaOZ→+O2axit 2-metylpropanoic X có thể là chất nào sau đây?

Hóa học Tốt nghiệp THPT

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Luyện tập trang 63-64-65

Cho ba đoạn thẳng có độ dài là m, n, p (cùng đơn vị đo). Dựng đoạn thẳng có độ dài x sao cho:

Toán Lớp 8

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229 Bài tập thí nghiệm từ đề thi đại học cực hay có lời giải(P7)

Để phân tích định tính các nguyên tố trong hợp chất hữu cơ, người ta thực hiện một thí nghiệm được mô tả như hình vẽ: Phát biểu nào sau đây đúng?

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 12)

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. Much as Michael loved travelling in Asia, he decided not to go to Iraq because of hi s fears of terrorism.

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 17)

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. In the North American colonies, red ware, a simple pottery fired at low temperatures, and stone ware, a strong, impervious grey pottery fired at high temperatures, were produced from two different native clays. These kinds of pottery were produced to supplement imported European pottery. When the American Revolution (1775-1783) interrupted the flow of the superior European ware, there was incentive for American potters to replace the imports with comparable domestic goods. Stoneware, which had been simple utilitarian kitchenware, grew increasingly ornate throughout the nineteenth century, and in addition to the earlier scratched and drawn designs, threedimensional molded relief decoration became popular. Representational motifs largely replaced the earlier abstract decorations. Birds and flowers were particularly evident, but other subjects---lions, flags, and clipper ships---are found. Some figurines, mainly of dogs and lions, were made in this medium. Sometimes a name, usually that of the potter, was die-stamped onto a piece. As more and more large kilns were built to create the high-fired stoneware, experiments revealed that the same clay used to produce low-fired red ware could produce a stronger, paler pottery if fired at a hotter temperature. The result was yellow ware, used largely for serviceable items; but a further development was Rockingham ware---one of the most important American ceramics of the nineteenth century. (The name of the ware was probably derived from its resemblance to English brown-glazed earthenware made in South Yorkshire.) It was created by adding a brown glaze to the fired clay, usually giving the finished product a mottled appearance. Various methods of spattering or sponging the glaze onto the ware account for the extremely wide variations in color and add to the interest of collecting Rockingham. An advanced form of Rockingham was flint enamel, created by dusting metallic powders onto the Rockingham glaze to produce brilliant varicolored streaks. Articles for nearly every household activity and ornament could be bought in Rockingham ware: dishes and bowls, of course; also bedpans, foot warmers, cuspidors, lamp bases, doorknobs, molds, picture frames, even curtain tiebacks. All these items are highly collectible today and are eagerly sought. A few Rockingham specialties command particular affection among collectors and correspondingly high prices. The phrase “derived from” in paragraph 2 is closest in meaning to _________.

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 16)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Years ago, in their private family role, women quite often dominate the male members of the household. Women were quite (23) to their families. However, the public role of women has changed (24)since the beginning of World War II. During the war, men were away from home to the battle. As a (25)_women were in complete control of the home. They found themselves doing double and sometimes triple duty. They began to take over the work of their absent husbands and to work outside. They accounted for 73% of the industrial labor force. Women were forced by economic realities to work in the factories. The women (26) worked there were paid low wages, lived in crowded and small dormitories. (27)__they found themselves a place as active members of society. (Source: haps://goo.91/aeawF4) Question 24

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Bài 56. Thực hành: Vẽ sơ đồ nguyên lý mạch điện

Hãy vẽ sơ đồ nguyên lý của một số mạch điện sau (h56.2)

Công nghệ Lớp 8

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 2)

Tiến hành các thí nghiệm sau : (1) Thuỷ phân tinh bột thu được hợp chất A (2) Lên men giấm ancol etylic thu được hợp chất hữu cơ B (3) Hyđrat hoá etylen thu được hợp chất hữu cơ D. (4) Hấp thụ C2H2 vào dung dịch HgSO4 ở 800C thu được hợp chất hữu cơ E. Chọn sơ đồ phản ứng đúng biểu diễn mối liên hệ giữa các chất trên. Biết mỗi mũi tên là một phản ứng

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Luyện tập trang 63-64-65

Có thể đo gián tiếp chiều cao của một bức tường khá cao bằng dụng cụ đơn giản được không? Hình 19 thể hiện cách đo chiều cao AB của một bức tường bằng các dụng cụ đơn giản gồm: Hai cọc thẳng đứng (cọc 1 cố định; cọc 2 có thể di động được) và sợi dây FC. Cọc 1 có chiều cao DK = h. Các khoảng cách BC = a, DC = b đo được bằng thước dây thông dụng. a) Em hãy cho biết người ta tiến hành đo đạc như thế nào. b) Tính chiều cao AB theo h, a, b.

Toán Lớp 8

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 12)

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. As Keanu Reeves became more famous, it was more difficult for him to avoid newspaper reporters.

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Bộ đề thi thử 2019 Tiếng Anh cực hay có lời giải chi tiết (Đề số 5)

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. With the victory over (A) Germany in the final match.(B) Brazil became the first team won (C) the trophy five times. (D)

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 17)

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. In the North American colonies, red ware, a simple pottery fired at low temperatures, and stone ware, a strong, impervious grey pottery fired at high temperatures, were produced from two different native clays. These kinds of pottery were produced to supplement imported European pottery. When the American Revolution (1775-1783) interrupted the flow of the superior European ware, there was incentive for American potters to replace the imports with comparable domestic goods. Stoneware, which had been simple utilitarian kitchenware, grew increasingly ornate throughout the nineteenth century, and in addition to the earlier scratched and drawn designs, threedimensional molded relief decoration became popular. Representational motifs largely replaced the earlier abstract decorations. Birds and flowers were particularly evident, but other subjects---lions, flags, and clipper ships---are found. Some figurines, mainly of dogs and lions, were made in this medium. Sometimes a name, usually that of the potter, was die-stamped onto a piece. As more and more large kilns were built to create the high-fired stoneware, experiments revealed that the same clay used to produce low-fired red ware could produce a stronger, paler pottery if fired at a hotter temperature. The result was yellow ware, used largely for serviceable items; but a further development was Rockingham ware---one of the most important American ceramics of the nineteenth century. (The name of the ware was probably derived from its resemblance to English brown-glazed earthenware made in South Yorkshire.) It was created by adding a brown glaze to the fired clay, usually giving the finished product a mottled appearance. Various methods of spattering or sponging the glaze onto the ware account for the extremely wide variations in color and add to the interest of collecting Rockingham. An advanced form of Rockingham was flint enamel, created by dusting metallic powders onto the Rockingham glaze to produce brilliant varicolored streaks. Articles for nearly every household activity and ornament could be bought in Rockingham ware: dishes and bowls, of course; also bedpans, foot warmers, cuspidors, lamp bases, doorknobs, molds, picture frames, even curtain tiebacks. All these items are highly collectible today and are eagerly sought. A few Rockingham specialties command particular affection among collectors and correspondingly high prices. How did yellow ware achieve its distinctive color?

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 16)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Years ago, in their private family role, women quite often dominate the male members of the household. Women were quite (23) to their families. However, the public role of women has changed (24)since the beginning of World War II. During the war, men were away from home to the battle. As a (25)_women were in complete control of the home. They found themselves doing double and sometimes triple duty. They began to take over the work of their absent husbands and to work outside. They accounted for 73% of the industrial labor force. Women were forced by economic realities to work in the factories. The women (26) worked there were paid low wages, lived in crowded and small dormitories. (27)__they found themselves a place as active members of society. (Source: haps://goo.91/aeawF4) Question 23

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Bài 56. Thực hành: Vẽ sơ đồ nguyên lý mạch điện

Hãy điền các kí hiệu dây pha, dây trung tính, thiết bị… vào sơ đồ điện dưới đây. Tìm những chỗ sai trong mạch

Công nghệ Lớp 8

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Luyện tập trang 63-64-65

Có thể đo được chiều rộng của một khúc sông mà không cần phải sang bờ bên kia hay không? Người ta tiến hành đo đạc các yếu tố hình học cần thiết để tính chiều rộng của khúc sông mà không cần phải sang bờ bên kia. Nhìn hình vẽ đã cho, hãy mô tả những công việc cần làm và tính khoảng cách AB =x theo BC =a, B’C’ = a’; BB’ = h.

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 2)

Cho từ từ chất X vào dung dịch Y, sự biến thiên lượng kết tủa Z tạo thành trong thí nghiệm được biểu diễn trên đồ thị sau: Phát biểu sau đây đúng là

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 16)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Question 22: Lan and Ba are discussing a question of their teacher. Lan: I think it is a good idea to have three or four generations living under one roof Ba:____________________________________.

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Bộ đề thi thử 2019 Tiếng Anh cực hay có lời giải chi tiết (Đề số 5)

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 Netherland, with much (A) of its land lying (B) lower than sea level, have (C) a system of dikes and canals for controlling (D) water.

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ĐỀ LUYỆN TỔNG HỢP (P6)

Cho các gluxit: glucozơ, fructozơ, saccarozơ, tinh bột và xenlulozơ. Có bao nhiêu chất làm nhạt màu dung dịch nước brom và có phản ứng tráng bạc ?

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 17)

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. In the North American colonies, red ware, a simple pottery fired at low temperatures, and stone ware, a strong, impervious grey pottery fired at high temperatures, were produced from two different native clays. These kinds of pottery were produced to supplement imported European pottery. When the American Revolution (1775-1783) interrupted the flow of the superior European ware, there was incentive for American potters to replace the imports with comparable domestic goods. Stoneware, which had been simple utilitarian kitchenware, grew increasingly ornate throughout the nineteenth century, and in addition to the earlier scratched and drawn designs, threedimensional molded relief decoration became popular. Representational motifs largely replaced the earlier abstract decorations. Birds and flowers were particularly evident, but other subjects---lions, flags, and clipper ships---are found. Some figurines, mainly of dogs and lions, were made in this medium. Sometimes a name, usually that of the potter, was die-stamped onto a piece. As more and more large kilns were built to create the high-fired stoneware, experiments revealed that the same clay used to produce low-fired red ware could produce a stronger, paler pottery if fired at a hotter temperature. The result was yellow ware, used largely for serviceable items; but a further development was Rockingham ware---one of the most important American ceramics of the nineteenth century. (The name of the ware was probably derived from its resemblance to English brown-glazed earthenware made in South Yorkshire.) It was created by adding a brown glaze to the fired clay, usually giving the finished product a mottled appearance. Various methods of spattering or sponging the glaze onto the ware account for the extremely wide variations in color and add to the interest of collecting Rockingham. An advanced form of Rockingham was flint enamel, created by dusting metallic powders onto the Rockingham glaze to produce brilliant varicolored streaks. Articles for nearly every household activity and ornament could be bought in Rockingham ware: dishes and bowls, of course; also bedpans, foot warmers, cuspidors, lamp bases, doorknobs, molds, picture frames, even curtain tiebacks. All these items are highly collectible today and are eagerly sought. A few Rockingham specialties command particular affection among collectors and correspondingly high prices. The passage suggests that the earliest stoneware _________.

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Luyện tập trang 63-64-65

Tam giác ABC có BC = 15cm. Trên đường cao AH lấy các điểm I, K sao cho AK = KI = IH. Qua I và K vẽ các đường EF // BC, MN // BC a) Tính độ dài các đoạn thẳng MN và EF. b) Tính diện tích tứ giác MNFE, biết rằng diện tích của tam giác ABC là 270cm2.

Toán Lớp 8

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 12)

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. It takes a long time to raise a family of owlets, so the great homed owl begins early in the year. In January and February, or as late as March in the North, the male calls to the female with a resonant hoot. The female is larger than the male. She sometimes reaches a body length of twenty-two to twenty-four inches, with a wingspread up to fifty inches. To impress her, the male does a strange courtship dance. He bobs. He bows. He ruffles his feathers and hops around with an important air. He flutters from limb to limb and makes flying sorties into the air. Sometimes he returns with an offering of food. They share the repast, after which she joins the dance, hopping and bobbing about as though keeping time to the beat of an inner drum. Owls are poor home builders. They prefer to nest in a large hollow in a tree or even to occupy the deserted nest of a hawk or crow. These structures are large and rough, built of sticks and bark and lined with leaves and feathers. Sometimes owls nest on a rocky ledge, or even on the bare ground, even to occupy the deserted nest of a hawk or crow. These structures are large and rough, built of sticks and bark and lined with leaves and feathers. Sometimes owls nest on a rocky ledge, or even on the bare ground. The mother lays two or three round, dull white eggs. Then she stoically settles herself on the nest and spreads her feather skirts about her to protect her precious charges from snow and cold. It is five weeks before the first downy white owlet pecks its way out of the shell. As the young birds feather out, they look like wise old men with their wide eyes and quizzical expressions. They clamor for food and keep the parents busy supplying mice, squirrels, rabbits, crayfish, and beetles. Later in the season baby crows are taken. Migrating songsters, waterfowl, and game birds all fall prey to the hungry family. It is nearly ten weeks before fledglings leave the nest to search for their own food. The parent birds weary of family life by November and drive the young owls away to establish hunting ranges of their own The word “they” refers to

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 16)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Question 21: Ann and Mary are studying in their classroom. Ann: "Can I borrow you dictionary?" Mary: "______"

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 2)

Cho thí nghiệm như hình vẽ: Thí nghiệm trên dùng để định tính nguyên tố nào có trong glucozơ

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Luyện tập trang 63-64-65

Tam giác ABC có đường cao AH. Đường thẳng d song song với BC cắt các cạnh AB, AC và đường cao AH theo thứ tự tại các điểm B', C' và H' (h.16). a) Chứng minh rằng: AH'AH = B'CBC b) Áp dụng: Cho biết AH'AH = 13 và diện tích tam giác ABC là 67,5 cm2. Tính diện tích tam giác AB’C’.

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Bài 55. Sơ đồ điện

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ĐỀ LUYỆN TỔNG HỢP (P6)

Trong các chất sau: tripanmitin, alanin, crezol, hiđroquinon, cumen, phenol, poli(vinyl axetat), anbumin. Có bao nhiêu chất có phản ứng với dung dịch NaOH đun nóng ?

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Bài 55. Sơ đồ điện

Thế nào là sơ đồ nguyên lý và sơ đồ lắp đặt? Chúng khác nhau ở điểm nào?

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Bộ đề thi thử 2019 Tiếng Anh cực hay có lời giải chi tiết (Đề số 5)

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. Almost (A) all the (B) students were confusing (C) because Ms. Kelly’s explanation was unclear.(D)

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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. Question 20: There must be a mutual trust between friends.

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 12)

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. It takes a long time to raise a family of owlets, so the great homed owl begins early in the year. In January and February, or as late as March in the North, the male calls to the female with a resonant hoot. The female is larger than the male. She sometimes reaches a body length of twenty-two to twenty-four inches, with a wingspread up to fifty inches. To impress her, the male does a strange courtship dance. He bobs. He bows. He ruffles his feathers and hops around with an important air. He flutters from limb to limb and makes flying sorties into the air. Sometimes he returns with an offering of food. They share the repast, after which she joins the dance, hopping and bobbing about as though keeping time to the beat of an inner drum. Owls are poor home builders. They prefer to nest in a large hollow in a tree or even to occupy the deserted nest of a hawk or crow. These structures are large and rough, built of sticks and bark and lined with leaves and feathers. Sometimes owls nest on a rocky ledge, or even on the bare ground, even to occupy the deserted nest of a hawk or crow. These structures are large and rough, built of sticks and bark and lined with leaves and feathers. Sometimes owls nest on a rocky ledge, or even on the bare ground. The mother lays two or three round, dull white eggs. Then she stoically settles herself on the nest and spreads her feather skirts about her to protect her precious charges from snow and cold. It is five weeks before the first downy white owlet pecks its way out of the shell. As the young birds feather out, they look like wise old men with their wide eyes and quizzical expressions. They clamor for food and keep the parents busy supplying mice, squirrels, rabbits, crayfish, and beetles. Later in the season baby crows are taken. Migrating songsters, waterfowl, and game birds all fall prey to the hungry family. It is nearly ten weeks before fledglings leave the nest to search for their own food. The parent birds weary of family life by November and drive the young owls away to establish hunting ranges of their own According to the passage, young owlets eat everything EXCEPT _____________

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Bài 55. Sơ đồ điện

Dựa vào những khái niệm trên, em hãy phân tích và chỉ ra những sơ đồ nào trong hình 55.4 là sơ đồ nguyên lý? Sơ đồ lắp đặt?

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Bài 54. Thực hành: Cầu chì

Tại sao trong mạng điện, cầu chì được lắp ở vị trí trước các thiết bị khác như cầu dao, công tắc, ổ điện?

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 12)

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. It takes a long time to raise a family of owlets, so the great homed owl begins early in the year. In January and February, or as late as March in the North, the male calls to the female with a resonant hoot. The female is larger than the male. She sometimes reaches a body length of twenty-two to twenty-four inches, with a wingspread up to fifty inches. To impress her, the male does a strange courtship dance. He bobs. He bows. He ruffles his feathers and hops around with an important air. He flutters from limb to limb and makes flying sorties into the air. Sometimes he returns with an offering of food. They share the repast, after which she joins the dance, hopping and bobbing about as though keeping time to the beat of an inner drum. Owls are poor home builders. They prefer to nest in a large hollow in a tree or even to occupy the deserted nest of a hawk or crow. These structures are large and rough, built of sticks and bark and lined with leaves and feathers. Sometimes owls nest on a rocky ledge, or even on the bare ground, even to occupy the deserted nest of a hawk or crow. These structures are large and rough, built of sticks and bark and lined with leaves and feathers. Sometimes owls nest on a rocky ledge, or even on the bare ground. The mother lays two or three round, dull white eggs. Then she stoically settles herself on the nest and spreads her feather skirts about her to protect her precious charges from snow and cold. It is five weeks before the first downy white owlet pecks its way out of the shell. As the young birds feather out, they look like wise old men with their wide eyes and quizzical expressions. They clamor for food and keep the parents busy supplying mice, squirrels, rabbits, crayfish, and beetles. Later in the season baby crows are taken. Migrating songsters, waterfowl, and game birds all fall prey to the hungry family. It is nearly ten weeks before fledglings leave the nest to search for their own food. The parent birds weary of family life by November and drive the young owls away to establish hunting ranges of their own The phrase “precious charges” refers to_____________

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 17)

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. In the North American colonies, red ware, a simple pottery fired at low temperatures, and stone ware, a strong, impervious grey pottery fired at high temperatures, were produced from two different native clays. These kinds of pottery were produced to supplement imported European pottery. When the American Revolution (1775-1783) interrupted the flow of the superior European ware, there was incentive for American potters to replace the imports with comparable domestic goods. Stoneware, which had been simple utilitarian kitchenware, grew increasingly ornate throughout the nineteenth century, and in addition to the earlier scratched and drawn designs, threedimensional molded relief decoration became popular. Representational motifs largely replaced the earlier abstract decorations. Birds and flowers were particularly evident, but other subjects---lions, flags, and clipper ships---are found. Some figurines, mainly of dogs and lions, were made in this medium. Sometimes a name, usually that of the potter, was die-stamped onto a piece. As more and more large kilns were built to create the high-fired stoneware, experiments revealed that the same clay used to produce low-fired red ware could produce a stronger, paler pottery if fired at a hotter temperature. The result was yellow ware, used largely for serviceable items; but a further development was Rockingham ware---one of the most important American ceramics of the nineteenth century. (The name of the ware was probably derived from its resemblance to English brown-glazed earthenware made in South Yorkshire.) It was created by adding a brown glaze to the fired clay, usually giving the finished product a mottled appearance. Various methods of spattering or sponging the glaze onto the ware account for the extremely wide variations in color and add to the interest of collecting Rockingham. An advanced form of Rockingham was flint enamel, created by dusting metallic powders onto the Rockingham glaze to produce brilliant varicolored streaks. Articles for nearly every household activity and ornament could be bought in Rockingham ware: dishes and bowls, of course; also bedpans, foot warmers, cuspidors, lamp bases, doorknobs, molds, picture frames, even curtain tiebacks. All these items are highly collectible today and are eagerly sought. A few Rockingham specialties command particular affection among collectors and correspondingly high prices. The word “ornate” in paragraph 1 is closest in meaning to _________.

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 16)

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Bài 54. Thực hành: Cầu chì

Dây chì trong cầu chì thường làm bằng vật liệu gì?

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Bài 54. Thực hành: Cầu chì

Cầu chì là gì?

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Bộ đề thi thử 2019 Tiếng Anh cực hay có lời giải chi tiết (Đề số 5)

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. I had a __________, which I couldn't explain, that something terrible was going to happen.

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Bài 54. Thực hành: Cầu chì

Khi đóng công tắc K, dòng điện đi như thế nào trong mạch điện, có đi qua bóng đèn không? Hiện tượng này gọi là gì của mạch điện?

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 12)

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Bài 54. Thực hành: Cầu chì

Dòng điện sẽ đi như thế nào trong mạch điện? Bóng đèn có sáng không?

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Bài 54. Thực hành: Cầu chì

Tắt công tắc K, làm đứt dây chì, sau đó đóng công tắc K lại. Bóng đèn có sáng không? Em có nhận xét gì về chức năng của dây chì trong trường hợp mạch điện làm việc bình thường?

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Lớp 12

Lớp 11

Lớp 10

Ôn vào 10

Lớp 9

Lớp 8

Lớp 7

Lớp 6

Ôn vào 6

Lớp 5

Lớp 4

Lớp 3

Lớp 2

Lớp 1

Đại học

ĐGNL - ĐGTD

Tốt nghiệp THPT

Ôn vào 10

Ôn vào 6

V-ACT

HSA

TSA

SPT

Toán

Văn

Tiếng Anh

Vật lý

Hóa học

Sinh học

Lịch sử

Địa lý

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Văn

Tiếng Anh

Vật lí

Hóa học

Sinh học

Lịch sử

Địa lí

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Văn

Tiếng Anh

Vật lí

Hóa học

Sinh học

Lịch sử

Địa lí

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Văn

Tiếng Anh

Vật lý

Hóa học

Sinh học

Lịch sử

Địa lí

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Văn

Tiếng Anh

Vật lý

Hóa học

Sinh học

Khoa học tự nhiên

Tin học

Lịch sử

Địa lí

Toán

Văn

Tiếng Anh