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Câu hỏi: 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 36 to 42.
THE RING OF FIRE
The Ring of Fire is an enormous chain of volcanoes all around the Pacific Ocean. The ring goes from New
Zealand up to Asia and across the ocean to Alaska. From Alaska, the ring continues southward along the coast of both North and South America. More than seventy-five percent of the world's volcanoes are situated in this ring.
Scientists are interested in studying the Ring of Fire because they can observe plate tectonics at work there. In 1912, a German scientist, Alfred Wegener, came up with the first theory of land movement. Wegener said continents are made up of lighter rocks resting on heavier material. Similar to the way large things move while floating on water, Wegener suggested that the positions of the continents were not fixed, but that they moved slightly. Later, scientists discovered most of Wegener's ideas were right on the mark. They then developed the theory called plate tectonics.
According to plate tectonics, the surface of the Earth consists of a number of enormous plates or sections of rock, each about eighty kilometers thick. The plates float and slowly move at speeds between one and ten centimeters every year. That is about the rate your fingernails grow! Within the Ring of Fire, new material for the Earth's plates is constantly being created as hot liquid rock called magma flows from the center of the Earth up to the ocean floor. All the existing plates on the Earth's surface have to move slightly to make room for the new material.
As plates move both away from and toward each other, they run into each other. When they hit each other, one plate might move under another. This process is called subduction. Subduction frequently causes earthquakes. It may also result in the bottom plate melting due to the extreme temperatures under the top plate. The magma created in this process can rise to the Earth's surface and come out through volcanoes, as can be seen along the Ring of Fire.
According to the passage, which is TRUE about the Ring of Fire?
A. All of the volcanoes along the ring are active.
B. Most of the volcanoes on Earth are part of the ring.
C. The ring gets bigger each year.
D. The ring was discovered in the 20th century.
THE RING OF FIRE
The Ring of Fire is an enormous chain of volcanoes all around the Pacific Ocean. The ring goes from New
Zealand up to Asia and across the ocean to Alaska. From Alaska, the ring continues southward along the coast of both North and South America. More than seventy-five percent of the world's volcanoes are situated in this ring.
Scientists are interested in studying the Ring of Fire because they can observe plate tectonics at work there. In 1912, a German scientist, Alfred Wegener, came up with the first theory of land movement. Wegener said continents are made up of lighter rocks resting on heavier material. Similar to the way large things move while floating on water, Wegener suggested that the positions of the continents were not fixed, but that they moved slightly. Later, scientists discovered most of Wegener's ideas were right on the mark. They then developed the theory called plate tectonics.
According to plate tectonics, the surface of the Earth consists of a number of enormous plates or sections of rock, each about eighty kilometers thick. The plates float and slowly move at speeds between one and ten centimeters every year. That is about the rate your fingernails grow! Within the Ring of Fire, new material for the Earth's plates is constantly being created as hot liquid rock called magma flows from the center of the Earth up to the ocean floor. All the existing plates on the Earth's surface have to move slightly to make room for the new material.
As plates move both away from and toward each other, they run into each other. When they hit each other, one plate might move under another. This process is called subduction. Subduction frequently causes earthquakes. It may also result in the bottom plate melting due to the extreme temperatures under the top plate. The magma created in this process can rise to the Earth's surface and come out through volcanoes, as can be seen along the Ring of Fire.
According to the passage, which is TRUE about the Ring of Fire?
A. All of the volcanoes along the ring are active.
B. Most of the volcanoes on Earth are part of the ring.
C. The ring gets bigger each year.
D. The ring was discovered in the 20th century.
Kiến thức : Đọc hiểu
Giải thích: Theo đoạn văn, điều nào là ĐÚNG về vành đai núi lửa?
A. Tất cả các núi lửa dọc theo vành đai đều hoạt động.
B. Hầu hết các núi lửa trên Trái đất là một phần của vành đai.
C. Mỗi năm vành đai trở nên lớn hơn.
D. Vành đai được phát hiện vào thế kỷ 20.
Thông tin: More than seventy-five percent of the world's volcanoes are situated in this ring.
Tạm dịch: Hơn bảy mươi lăm phần trăm núi lửa trên thế giới nằm trong vành đai này.
Giải thích: Theo đoạn văn, điều nào là ĐÚNG về vành đai núi lửa?
A. Tất cả các núi lửa dọc theo vành đai đều hoạt động.
B. Hầu hết các núi lửa trên Trái đất là một phần của vành đai.
C. Mỗi năm vành đai trở nên lớn hơn.
D. Vành đai được phát hiện vào thế kỷ 20.
Thông tin: More than seventy-five percent of the world's volcanoes are situated in this ring.
Tạm dịch: Hơn bảy mươi lăm phần trăm núi lửa trên thế giới nằm trong vành đai này.
Đáp án B.