Câu hỏi:
18/03/2020 3,024Read 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.
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 upon 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 “microbes” in paragraph 3 could best be replaced by which of the following?
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Trả lời:
Đáp án C.
A. pieces of dust: mảnh bụi
B. tiny bubbles: bong bóng nhỏ bé
C. tiny organisms: sinh vật nhỏ bé
D. rays of light: tia sáng
Microbles (vi khuẩn), gần nghĩa nhất với tiny organisms
Đã bán 152
Đã bán 114
Đã bán 132
Đã bán 47
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
His performance stood head and shoulders above the rest.
Câu 2:
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.
Rather than disturb the meeting, I left without saying goodbye.
Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
I can’t possibly lend you any more money, it is quite out of the _________ .
Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He would win the race if he __________ his brother's example and trained harder.
Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
By the time you come here tomorrow, the work ___________.
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
There is too much ____________ in this world.
Câu 7:
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.
Please remain in (A) your assign seats (B) until (C) the instructor dismisses (D) the class.
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