Đánh giá năng lực Hà Nội
Đánh giá năng lực Hà Nội
Dạng bài Đọc hiểu lớp 12
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct anstver to each of the questions.
In addition to the greatest ridges and volcanic chains, the oceans conceal another form of undersea mountains: the flat-topped seamount. No marine geologist even suspected the existence of these isolated mountains until they were discovered by geologist Harry H. Hess in 1946. He was serving at the time as a naval officer on a ship equipped with a fathometer. Hess named these truncated peaks after the nineteenth-century Swiss-born geologist Arnold Guyot, who had served on the faculty of Princeton University for thirty years. Since then hundreds of guyots have been discovered in every ocean but the Arctic. Like offshore canyons, guyots present a challenge to oceanograpliic theory. They are believed to be extinct volcanoes. Their flat tops indicate that they once stood above or just below the surface, where the action of waves leveled off their peaks. Yet today, by definition, their summits are at least 600 feet below the surface, and some are as deep as 8,200 feet. Most lie between 3,200 and 6,500 feet deep. Their tops are not really flat but slope upward to a low pinnacle at the center dredeing from the tops of guyots which have recovered basalt and coral rubble, and that would be expected from the eroded tops of what were once islands. Some of this material is over 80 million years old. Geologists think the drowning of the guyots involved two processes: the great weight of the volcanic mountains depressed by the sea íloor rose beneath them, and the level of the sea rose a number of times, especially when the last Ice Age ended, some 8,000 to 11,000 years ago.
Notes:
- seamount (n): is a mountain rising from tlie ocean sea floor that does not reach to the water’s surface (sea level).
- guyot (n): an isolated underwater volcanic mountain (seamount), with
a flat top over 200 meters below the surface of the sea.
- pinnacle (n): the top part of a mountain.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct anstver to each of the questions.
In addition to the greatest ridges and volcanic chains, the oceans conceal another form of undersea mountains: the flat-topped seamount. No marine geologist even suspected the existence of these isolated mountains until they were discovered by geologist Harry H. Hess in 1946. He was serving at the time as a naval officer on a ship equipped with a fathometer. Hess named these truncated peaks after the nineteenth-century Swiss-born geologist Arnold Guyot, who had served on the faculty of Princeton University for thirty years. Since then hundreds of guyots have been discovered in every ocean but the Arctic. Like offshore canyons, guyots present a challenge to oceanograpliic theory. They are believed to be extinct volcanoes. Their flat tops indicate that they once stood above or just below the surface, where the action of waves leveled off their peaks. Yet today, by definition, their summits are at least 600 feet below the surface, and some are as deep as 8,200 feet. Most lie between 3,200 and 6,500 feet deep. Their tops are not really flat but slope upward to a low pinnacle at the center dredeing from the tops of guyots which have recovered basalt and coral rubble, and that would be expected from the eroded tops of what were once islands. Some of this material is over 80 million years old. Geologists think the drowning of the guyots involved two processes: the great weight of the volcanic mountains depressed by the sea íloor rose beneath them, and the level of the sea rose a number of times, especially when the last Ice Age ended, some 8,000 to 11,000 years ago.
Notes:
- seamount (n): is a mountain rising from tlie ocean sea floor that does not reach to the water’s surface (sea level).
- guyot (n): an isolated underwater volcanic mountain (seamount), with
a flat top over 200 meters below the surface of the sea.
- pinnacle (n): the top part of a mountain.
Quảng cáo
Câu 1: What is the author’s main purpose in writing this passage?
A. To trace the career of Arnold Guyot.
B. To describe features of the undersea world.
C. To present the results of recent geologic research.
D. To discuss underwater ridges and volcanic chains.
-
Đáp án : B(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 2: The word “conceal” is closest in meaning to _________ .
A. contain
B. erode
C. hide
D. create
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Đáp án : C(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 3: The passage implies that guyots were first detected by means of ___________ .
A. a fathometer
B. computer analysis
C. a deep sea diving expedition
D. research submarines
-
Đáp án : A(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 4: The author indicates that Arnold Guyot __________ .
A. was Harry Hess’s instructor
B. invented the fathometer
C. named the guyots after himself
D. taught at Princeton University
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Đáp án : D(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 5: What does the passage say about the Arctic?
A. The first guyot was discovered there.
B. No guyots have ever been found there.
C. There are more guyots there than in any other ocean.
D. It is impossible that guyots were ever formed there.
-
Đáp án : B(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 6: The author states that offshore canyons and guyots have which of the following characteristics in common?
A. Both are found on the ocean floor near the continental shelves.
B. Both present oceanographers with a mystery.
C. Both were formed by volcanic activity.
D. Both were, at one time, above the surface of the sea.
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Đáp án : B(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 7: According to the passage, most guyots are found at a depth of ___________ .
A. less than 600 feet
B. between 600 and 3,200 feet
C. between 3,200 and 6,500 feet
D. more than 8,200 feet
-
Đáp án : C(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 8: Which of the following is closest in meaning to the word “rubble”?
A. fragments
B. mixture
C. columns
D. core
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Đáp án : A(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 9: According to the passage, which of the following two processes were involved in the submersion of guyots?
A. erosion and volcanic activity
B. the sinking of the sea floor and the rising of sea level
C. mountain building and the action of ocean currents
D. high tides and earthquakes
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Đáp án : B(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
Câu 10: According to the passage, when did sea level significantly rise?
A. in 1946
B. in the nineteenth century
C. some 8,000 to 11,000 years ago
D. 80 million years ago
-
Đáp án : C(0) bình luận (0) lời giải
Giải chi tiết:
Lời giải sai Bình thường Khá hay Rất Hay
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