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25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Mức độ sinh sản của quần thể là một trong các nhân tố ảnh hưởng đến kích thước của quần thể sinh vật. Nhân tố này lại phụ thuộc vào một số yếu tố, yếu tố nào sau đây là quan trọng nhất?

Sinh học Tốt nghiệp THPT
Xem chi tiết 548 lượt xem 6 năm trước
Đề thi Học Kì 2 môn hóa lớp 12 cực hay có lời giải (Đề số 2)

Hòa tan hết m gam bột nhôm kim loại bằng dung dịch HNO3 thu được dung dịch A không chứa muối amoni và 1,12 lit khí N2 (dktc). Khối lượng ban đầu m có giá trị là

Hóa học Tốt nghiệp THPT
Xem chi tiết 644 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (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. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. It can be inferred from the passage that it is legal if_______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 690 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it’s hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. The author states that the reason that infants need to avoid certain foods related to allergies has to do with the infant’s _____________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 370 lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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 early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. All of the following features of the covered wagon made it unattractive to the emigrants EXCEPT _________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 3.6 K lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Khi thủy phân không hoàn toàn Brađikinin (Arg- Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg), có tác dụng làm giảm huyết áp) thu được số tripeptit có chứa phenylamin (Phe) là

Hóa học Tốt nghiệp THPT
Xem chi tiết 654 lượt xem 6 năm trước
25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Một alen nào đó dù là có lợi cũng có thể bị loại bỏ hoàn toàn khỏi quần thể và một alen có hại cũng có thể trở nến phổ biến trong quần thể là do tác động của:

Sinh học Tốt nghiệp THPT
Xem chi tiết 606 lượt xem 6 năm trước
Bài tập đồ thị - Hóa Học cực hay có lời giải nâng cao

Nhỏ từ từ dung dịch Ba(OH)2 vào dung dịch chứa x mol H2SO4 và y mol Al2(SO4)3. Đồ thị biểu diễn sự phụ thuộc khối lượng kết tủa theo thể tích dung dịch Ba(OH)2 như sau: Giá trị nào sau đây của a là đúng?

Hóa học Tốt nghiệp THPT
Xem chi tiết 374 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it’s hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. The word “hyperactive” is closest in meaning to _____________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 307 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (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. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. Which of the following properties is NOT mentioned as protected by copyright?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.9 K lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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 early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. All of the following were mentioned in the passage as options for modes of transportation from the Missouri River to the West EXCEPT _________ .

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.3 K lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Khi nói về đột biến gen, phát biểu nào sau đây không đúng?

Sinh học Tốt nghiệp THPT
Xem chi tiết 3.1 K lượt xem 6 năm trước
ĐỀ LUYỆN TỔNG HỢP (P2)

Đun nóng 2 chất hữu cơ X, Y có công thức phân tử C5H8O2 trong dung dịch NaOH thu được 2 muối natri của 2 axit C3H6O2 (X1) và C3H4O2 (Y1) và 2 sản phẩm khác tương ứng là X2, Y2. Tính chất hoá học giống nhau giữa X2, Y2 là

Hóa học Tốt nghiệp THPT
Xem chi tiết 770 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (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. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. The word “principle” in paragraph 3 is closest in meaning to_________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.2 K lượt xem 6 năm trước
25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Đối với quá trình tiến hóa nhỏ, nhân tố đột biến (quá trình đột biến) có vai trò cung cấp

Sinh học Tốt nghiệp THPT
Xem chi tiết 750 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it’s hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. What can be inferred about babies from this passage?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 287 lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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 early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. The expression “green” in paragraph 3 is closest in meaning to _________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.2 K lượt xem 6 năm trước
600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Khi nói đến chức năng quan của nhân tế bào, có bao nhiêu phát biểu đúng?    I. Chứa đựng thông tin di truyền.    II. Tổng hợp nên ribôxôm.    III. Trung tâm điều khiển mọi hoạt động sống của tế bào.    IV. Chứa NST.

Sinh học Tốt nghiệp THPT
Xem chi tiết 728 lượt xem 6 năm trước
25 Bộ đề Ôn luyện thi THPTQG môn Sinh Học cực hay có lời giải (Đề số 21)

Theo quan điểm hiện đại, chọn lọc tự nhiên tác động trực tiếp lên:

Sinh học Tốt nghiệp THPT
Xem chi tiết 8.5 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 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. Most forms of property are concrete and tangible, such as houses, cars, furniture or anything else that is included in one’s possessions. Other forms of property can be intangible, and copyright deals with intangible forms of property. Copyright is a legal protection extended to authors of creative works, for example, books, magazine articles, maps, films, plays, television shows, software, paintings, photographs, music, choreography in dance and all other forms of intellectual or artistic property. Although the purpose of artistic property is usually public use and enjoyment, copyright establishes the ownership of the creator. When a person buys a copyrighted magazine, it belongs to this individual as a tangible object. However, the authors of the magazine articles own the research and the writing that went into creating the articles. The right to make and sell or give away copies of books or articles belongs to the authors, publishers, or other individuals or organizations that hold the copyright. To copy an entire book or a part of it, permission must be received from the copyright owner, who will most likely expect to be paid. Copyright law distinguishes between different types of intellectual property. Music may be played by anyone after it is published. However, if it is performed for profit, the performers need to pay a fee, called a royalty. A similar principle applies to performances of songs and plays. On the other hand, names, ideas, and book titles are excepted. Ideas do not become copyrighted property until they are published in a book, a painting or a musical work. Almost all artistic work created before the 20th century is not copyrighted because it was created before the copyright law was passed. The two common ways of infringing upon the copyright are plagiarism and piracy. Plagiarizing the work of another person means passing it off as one’s own. The word plagiarism is derived from the Latin plagiarus, which means “abductor”. Piracy may be an act of one person, but, in many cases, it is a joint effort of several people who reproduce copyrighted material and sell it for profit without paying royalties to the creator. Technological innovations have made piracy easy and anyone can duplicate a motion picture on videotape, a computer program, or a book. Video cassette recorders can be used by practically anyone to copy movies and television programs, and copying software has become almost as easy as copying a book. Large companies zealously monitor their copyrights for slogans, advertisements, and brand names, protected by a trademark. What does the passage mainly discuss?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 3 K lượt xem 6 năm trước
20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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 early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. Which of the cities that served as a jump-off point can be inferred from the passage to be farthest west?

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it’s hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. The phrase “set off’ is closest in meaning to _____________.

Tiếng Anh Tốt nghiệp THPT
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ĐỀ LUYỆN TỔNG HỢP (P2)

Chất nào sau đây không phản ứng với nước Br2?

Hóa học Tốt nghiệp THPT
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Bài tập đồ thị - Hóa Học cực hay có lời giải nâng cao

Nhỏ từ từ dung dịch Ba(OH)2 vào ống nghiệm chứa dung dịch H2SO4 và Al2(SO4)3. Đồ thị biểu diễn sự phụ thuộc khối lượng kết tủa theo thể tích dung dịch Ba(OH)2 như sau: Giá trị nào sau đây của mmax là đúng?

Hóa học Tốt nghiệp THPT
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600 Bài trắc nghiệm từ đề thi thử THPTQG Sinh Học có lời giải chi tiết (Đề số 13)

Trong quá trình nhân đôi ADN, enzim ligaza (enzim nối) có vai trò?

Sinh học Tốt nghiệp THPT
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Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 23)

Hỗn hợp E gồm hai peptit mạch hở X và Y, được tạo bởi alanin và glyxin có công thức (X) CxHy­NzO7 và (Y) CnHmNtO6. Đốt cháy hết 23,655 gam hỗn hợp E cần vừa đủ 1,00125 mol O2, sau phản ứng thu được tổng số mol H2O và N2 là 0,915 mol. Phần trăm khối lượng của Y trong E là:

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 12)

Mark the letter A, B, c or D your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. The National Institute of Mental Health is conducting far-reaching research to determine the psychological effects of using drugs.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it’s hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. The word “symptoms” is closest in meaning to _____________.

Tiếng Anh Tốt nghiệp THPT
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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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 early 1800s, to reach the jump-off point for the West, a family from the East of the United States could either buy a steamboat passage to Missouri for themselves, their wagons and their livestock or, as happened more often, simply pile everything into a wagon, hitch up a team, and begin their overland trek right in their front yard.         Along the macadamized roads and turnpikes east of the Missouri River, travel was comparatively fast, camping easy, and supplies plentiful. Then, in one river town or another, the neophyte emigrants would pause to lay in provisions. For outfitting purposes, the town of Independence had been preeminent ever since 1827, but the rising momentum of pioneer emigration had produced some rival jump-off points. Westport and Fort Leavenworth flourished a few miles upriver. St. Joseph had sprung up 55 miles to the northwest; in fact, emigrants who went to Missouri by riverboat could save four days on the trail by staying on the paddle wheelers to St. Joe before striking overland.         At whatever jump-off point they chose, the emigrants studied guide books and directions, asked questions of others as green as themselves, and made their final decision about outfitting. They had various, sometimes conflicting, options. For example, either pack animals or two -wheel carts or wagons could be used for the overland crossing. A family man usually chose the wagon. It was the costliest and slowest of the three, but it provided space and shelter for children and for a wife who likely as not was pregnant. Everybody knew that a top-heavy covered wagon might blow over in a prairie wind or be overturned by mountain rocks, that it might mire in river mud or sink to its hubs in desert sand, but maybe if those things happened on this trip, they would happen to someone else. Anyway, most pioneers, with their farm background, were used to wagons. The word “preeminent” in paragraph 2 is closest in meaning to _________.

Tiếng Anh Tốt nghiệp THPT
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ĐỀ LUYỆN TỔNG HỢP (P2)

Số hiđrocacbon (thể khí ở đktc) tác dụng được với dung dịch AgNO3­ trong NH3­ là

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 12)

Mark the letter A, B, c or D your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. The 2004 Indian Ocean earthquake, measured 9.1 on the Richter scale, occurring on 26 December wiped out a large number of residential coastal areas.

Tiếng Anh Tốt nghiệp THPT
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Bài tập đồ thị - Hóa Học cực hay có lời giải nâng cao

Nhỏ từ từ dung dịch Ba(OH)2 vào ống nghiệm chứa dung dịch HCl và Al2(SO4)3. Đồ thị biểu diễn sự phụ thuộc khối lượng kết tủa theo thể tích dung dịch Ba(OH)2 như sau: Giá trị nào của m sau đây là đúng?

Hóa học Tốt nghiệp THPT
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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it’s hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. According to the passage, the difficulty in diagnosing allergies to foods is due to _______ .

Tiếng Anh Tốt nghiệp THPT
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ĐỀ LUYỆN TỔNG HỢP (P2)

Công thức nào sau đây không thể là công thức đơn giản của 1 este no, mạch hở

Hóa học Tốt nghiệp THPT
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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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.         During the second half of the nineteenth century, the production of food and feed crops in the United States rose at an extraordinarily rapid rate. Com production increased by four and a half times, hay by five times, oats and wheat by seven times. The most crucial factor behind this phenomenal upsurge in productivity was the widespread adoption of labor-saving machinery by northern farmers. By 1850 horse-drawn reaping machines that cut grain were being introduced into the major grain-growing regions of the country. Horse-powered threshing machines to separate the seeds from the plants were already in general use. However, it was the onset of the Civil War in 1861 that provided the great stimulus for the mechanization of northern agriculture. With much of the labor force inducted into the army and with grain prices on the rise, northern farmers rushed to avail themselves of the new labor-saving equipment. In 1860 there were approximately 80,000 reapers in the country; five years later there were 350,000.         After the close of the war in 1865, machinery became ever more important in northern agriculture, and improved equipment was continually introduced. By 1880 a self-binding reaper had been perfected that not only cut the grain, but also gathered the stalks and bound them with twine. Threshing machines were also being improved and enlarged, and after 1870 they were increasingly powered by steam engines rather than by horses. Since steam-powered threshing machines were costly items-running from $ 1,000 to $4,000 - they were usually owned by custom thresher owners who then worked their way from farm to farm during the harvest season. “Combines” were also coming into use on the great wheat ranches in California and the Pacific Northwest. These ponderous machines - sometimes pulled by as many as 40 horses - reaped the grain, threshed it, and bagged it, all in one simultaneous operation.           The adoption of labor-saving machinery had a profound effect upon the sale of agricultural operations in the northern states-allowing farmers to increase vastly their crop acreage. By the end of century, a farmer employing the new machinery could plant and harvest two and half times as much com as a farmer had using hand methods 50 years before. It can be inferred from the passage that most fanners did not own threshing machines because _________ .

Tiếng Anh Tốt nghiệp THPT
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Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 23)

Hỗn hợp X gồm Mg, Fe, Cu, Fe2O­3 và CuO, trong đó oxi chiếm 10% khối lượng. Cho m gam X tan hoàn toàn vào dung dịch Y gồm HCl 0,74M và NaNO3 0,1M, thu được dung dịch Z chỉ chứa (m+29,37) gam muối trung hoà và 0,448 lít khí N2 (đktc). Dung dịch Z phản ứng tối đa với 0,67 mol KOH. Giá trị của m gần nhất với giá trị nào sau đây?

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 12)

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 ofprimary stress in each of the following questions

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 411 lượt xem 6 năm trước
Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it’s hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. The topic of this passage is _____________ 

Tiếng Anh Tốt nghiệp THPT
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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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.         During the second half of the nineteenth century, the production of food and feed crops in the United States rose at an extraordinarily rapid rate. Com production increased by four and a half times, hay by five times, oats and wheat by seven times. The most crucial factor behind this phenomenal upsurge in productivity was the widespread adoption of labor-saving machinery by northern farmers. By 1850 horse-drawn reaping machines that cut grain were being introduced into the major grain-growing regions of the country. Horse-powered threshing machines to separate the seeds from the plants were already in general use. However, it was the onset of the Civil War in 1861 that provided the great stimulus for the mechanization of northern agriculture. With much of the labor force inducted into the army and with grain prices on the rise, northern farmers rushed to avail themselves of the new labor-saving equipment. In 1860 there were approximately 80,000 reapers in the country; five years later there were 350,000.         After the close of the war in 1865, machinery became ever more important in northern agriculture, and improved equipment was continually introduced. By 1880 a self-binding reaper had been perfected that not only cut the grain, but also gathered the stalks and bound them with twine. Threshing machines were also being improved and enlarged, and after 1870 they were increasingly powered by steam engines rather than by horses. Since steam-powered threshing machines were costly items-running from $ 1,000 to $4,000 - they were usually owned by custom thresher owners who then worked their way from farm to farm during the harvest season. “Combines” were also coming into use on the great wheat ranches in California and the Pacific Northwest. These ponderous machines - sometimes pulled by as many as 40 horses - reaped the grain, threshed it, and bagged it, all in one simultaneous operation.           The adoption of labor-saving machinery had a profound effect upon the sale of agricultural operations in the northern states-allowing farmers to increase vastly their crop acreage. By the end of century, a farmer employing the new machinery could plant and harvest two and half times as much com as a farmer had using hand methods 50 years before. The word “they” in paragraph 2 refers to _________.

Tiếng Anh 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 12)

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 ofprimary stress in each of the following questions

Tiếng Anh Tốt nghiệp THPT
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ĐỀ LUYỆN TỔNG HỢP (P2)

Crackinh hoàn toàn một ankan X chỉ thu được sản phẩm gồm 2 hiđrocacbon. X là chất nào sau đây?

Hóa học Tốt nghiệp THPT
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Bài tập đồ thị - Hóa Học cực hay có lời giải nâng cao

Nhỏ từ từ dung dịch Ba(OH)2 vào ống nghiệm chứa dung dịch HCl và Al2(SO4)3. Đồ thị biểu diễn sự phụ thuộc khối lượng kết tủa theo thể tích dung dịch Ba(OH)2 như sau: Giá trị nào của mmin sau đây là đúng?

Hóa học Tốt nghiệp THPT
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Đề thi Hóa học cực hay có lời giải chi tiết cơ bản, nâng cao (Đề 23)

X,Y là hai hữu cơ axit mạch hở MX<MY. Z là ancol no, T là este hai chức mạch hở không nhánh tạo bởi X, T, Z. Đun 38,86 gam hỗn hợp E chứa X, Y, Z, T với 400ml dung dịch NaOH 1M vừa đủ thu được ancol Z và hỗn hợp F chứa hai muối có số mol bằng nhau. Cho Z vào bình chứa Na dư thấy bình tăng 19,24 gam và thu được 5,824 lít H2 ở đktc. Đốt hoàn toàn hỗn hợp F cần 15,68 lít O2 (đktc) thu được khí CO2, Na2CO3 và 7,2 gam H2O. Phần trăm số mol của T trong E gần nhất với:

Hóa học Tốt nghiệp THPT
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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Almost 90 percent of American students below the college level attend public elementary and secondary schools, which do not charge tuition but rely on local and state taxes for funding. Traditionally, elementary school includes kindergarten through the eighth grade. In some places, (23) _____________ , elementary school ends after the sixth grade, and students attend middle school, or junior high school, from grades seven through nine. Similarly, secondary school, or high school, traditionally comprises grades nine through twelve, but in some places begins (24) _____________ the tenth grade.    Most of the students who do not attend public elementary and secondary schools attend private schools, for which their families pay (25) _____________ . Four out of five private schools are run by religious groups. In these schools religious instruction is part of the curriculum, (26) _____________ also includes the traditional academic courses. There is also a small but growing number of parents who educate their children themselves, a practice known as home schooling.    The United States does not have a national school system. Nor, with the exception of the military academies, are there schools run by the federal government. But the government (27) _____________ guidance and funding for federal educational programs in which both public and private schools take part and the U.S. Department of Education oversees these programs. Điền vào ô 27

Tiếng Anh 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 12)

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 pronunciation in each of the following questions

Tiếng Anh Tốt nghiệp THPT
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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 11)

Bệnh mù màu đỏ và lục ở người do gen đột biến lặn nằm trên nhiễm sắc thể X không có alen tương ứng trên Y. Bệnh bạch tạng lại do một gen lặn khác nằm trên nhiễm sắc thể thường qui định. Một cặp vợ chồng đều không mắc cả 2 bệnh trên. Người vợ có bố bị mù màu và mẹ bình thường nhưng em trai bị bệnh bạch tạng. Người chồng bố mẹ đều bình thường, ông bà nội đều bình thường nhưng có chú bị bệnh bạch tạng. Biết rằng mẹ của người chồng đến từ một quần thể có tỉ lệ người bình thường mang gen gây bệnh bạch tạng là 1/10. Nếu cặp vợ chồng này sinh ra một đứa con bình thường, xác suất để đứa con này không mang alen gây bệnh là

Sinh học Tốt nghiệp THPT
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ĐỀ LUYỆN TỔNG HỢP (P2)

Đốt cháy một hiđrocacbon X mạch hở thu được số mol CO2 bằng số mol H2O. X là

Hóa học Tốt nghiệp THPT
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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 18)

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.         During the second half of the nineteenth century, the production of food and feed crops in the United States rose at an extraordinarily rapid rate. Com production increased by four and a half times, hay by five times, oats and wheat by seven times. The most crucial factor behind this phenomenal upsurge in productivity was the widespread adoption of labor-saving machinery by northern farmers. By 1850 horse-drawn reaping machines that cut grain were being introduced into the major grain-growing regions of the country. Horse-powered threshing machines to separate the seeds from the plants were already in general use. However, it was the onset of the Civil War in 1861 that provided the great stimulus for the mechanization of northern agriculture. With much of the labor force inducted into the army and with grain prices on the rise, northern farmers rushed to avail themselves of the new labor-saving equipment. In 1860 there were approximately 80,000 reapers in the country; five years later there were 350,000.         After the close of the war in 1865, machinery became ever more important in northern agriculture, and improved equipment was continually introduced. By 1880 a self-binding reaper had been perfected that not only cut the grain, but also gathered the stalks and bound them with twine. Threshing machines were also being improved and enlarged, and after 1870 they were increasingly powered by steam engines rather than by horses. Since steam-powered threshing machines were costly items-running from $ 1,000 to $4,000 - they were usually owned by custom thresher owners who then worked their way from farm to farm during the harvest season. “Combines” were also coming into use on the great wheat ranches in California and the Pacific Northwest. These ponderous machines - sometimes pulled by as many as 40 horses - reaped the grain, threshed it, and bagged it, all in one simultaneous operation.           The adoption of labor-saving machinery had a profound effect upon the sale of agricultural operations in the northern states-allowing farmers to increase vastly their crop acreage. By the end of century, a farmer employing the new machinery could plant and harvest two and half times as much com as a farmer had using hand methods 50 years before. Combines and self-binding reapers were similar because each _________.

Tiếng Anh 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 12)

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 pronunciation in each of the following questions

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 14)

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.    Almost 90 percent of American students below the college level attend public elementary and secondary schools, which do not charge tuition but rely on local and state taxes for funding. Traditionally, elementary school includes kindergarten through the eighth grade. In some places, (23) _____________ , elementary school ends after the sixth grade, and students attend middle school, or junior high school, from grades seven through nine. Similarly, secondary school, or high school, traditionally comprises grades nine through twelve, but in some places begins (24) _____________ the tenth grade.    Most of the students who do not attend public elementary and secondary schools attend private schools, for which their families pay (25) _____________ . Four out of five private schools are run by religious groups. In these schools religious instruction is part of the curriculum, (26) _____________ also includes the traditional academic courses. There is also a small but growing number of parents who educate their children themselves, a practice known as home schooling.    The United States does not have a national school system. Nor, with the exception of the military academies, are there schools run by the federal government. But the government (27) _____________ guidance and funding for federal educational programs in which both public and private schools take part and the U.S. Department of Education oversees these programs. Điền vào ô 26

Tiếng Anh Tốt nghiệp THPT
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