Câu hỏi:
15/11/2023 764
A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.
The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.
The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.
The word “hidden” in paragraph 1 is closest in meaning to ______.
A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.
The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.
The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.
The word “hidden” in paragraph 1 is closest in meaning to ______.
Đáp án chính xác
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Trả lời:
Giải bởi Vietjack
Đáp án B
Từ “hidden” ở đoạn 1 gần nghĩa nhất với
A. Không thể uống được B. Không bị ảnh hưởng/ làm cho bị hư hại
C. Không thể khai thác được D. Chưa được phát hiện
Dẫn chứng: A rather surprising geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice.
=>hidden = untouched
Câu hỏi cùng đoạn
Câu 2:
What is true of Lake Vostok?
What is true of Lake Vostok?
Đáp án chính xác
Lời giải của GV VietJack
Đáp án C
Câu nào đúng về hồ Vostok?
A. Nó hoàn toàn bị đông lạnh. B. Nó là hồ nước mặn.
C. Nó ở bên dưới một phiến đá dày. D. Nó được sưởi ấm bởi mặt trời.
Dẫn chứng: The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core.
Câu 3:
Which of the following is closest in meaning to “frigid” in paragraph 1?
Which of the following is closest in meaning to “frigid” in paragraph 1?
Đáp án chính xác
Lời giải của GV VietJack
Đáp án A
Từ nào sau đây gần nghĩa nhất với “frigid” ở đoạn 1?
A. cực kỳ lạnh B. dễ vỡ
C. khá thô ráp D. ấm áp
Dẫn chứng: The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.
Câu 4:
All of the following are true about the 1970 survey of Antarctica EXCEPT that it______.
All of the following are true about the 1970 survey of Antarctica EXCEPT that it______.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án D
Tất cả những câu nào sau đây đúng về cuộc khảo sát năm 1970 của châu Đại Dương NGOẠI TRỪ
A. được thực hiện bởi máy bay
B. tận dụng sóng radio
C. không thể xác định kích cỡ chính xác của cái hồ
D. được kiểm soát bởi 1 vệ tinh
Dẫn chứng: The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size.
Câu 5:
It can be inferred from the passage that the ice would not be flat if______.
It can be inferred from the passage that the ice would not be flat if______.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án A
Có thể suy ra từ bài đọc rằng lớp băng sẽ không bằng phẳng nếu
A. không có hồ ở bên dưới B. hồ không quá lớn
C. Bắc Cực không quá lạnh D. Sóng radio không được sử dụng.
Dẫn chứng: It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.
Câu 6:
The word “microbes” in paragraph 3 could best be replaced by which of the following?
The word “microbes” in paragraph 3 could best be replaced by which of the following?
Đáp án chính xác
Lời giải của GV VietJack
Đáp án C
Từ “microbes” ở đoạn 3 có thể được thay thế bởi từ nào sau đây?
A. hạt bụi B. bong bóng nhỏ
C. sinh vật nhỏ D. tia sáng
Dẫn chứng: The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas.
Câu 7:
Lake Vostok is potentially important to scientists because it______.
Lake Vostok is potentially important to scientists because it______.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án B
Hồ Vostok rất quan trọng đối với các nhà khoa học bởi vì
A. có thể được nghiên cứu qua việc sử dụng sóng radio
B. có thể chứa các vi trùng chưa bị làm ô nhiễm
C. có thể làm tăng hàm lượng ánh sáng tia cực tím
D. đã bị nhiễm bẩn
Dẫn chứng: The discovery of such a huge freshwater lake trapped under Antarctica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas.
Câu 8:
The purpose of the passage is to _____.
The purpose of the passage is to _____.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án D
Mục đích của bài đọc là gì?
A. giải thích cách mà hồ Vostok được phát hiện
B. cung cấp dữ liệu vệ tinh liên quan đến Bắc Cực
C. nói về các kế hoạch tương lai cho hồ Vostok
D. trình bày một khía cạnh không ngờ tới về địa lý của Bắc Cực.
Nhà sách VIETJACK:
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