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Câu hỏi:

27/08/2021 83

 

Read the following pasage and mark the letter A,B,C or D to indicate the correct answer to each of the questions from 36 to 42.

A rather surprising geographical feature of Antarctica is that a huge freshwater, 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 warned by geothermal heat from the earth's core. This thick glacier above Lake Vostok actually insulates it from frigid temperatures (the lowest ever recorded on Earth) 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; 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 fresh water 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?

 

A. pieces of dust

B. trapped bubbles

C. tiny organism 

Đáp án chính xác

D. rays of light

Trả lời:

verified Giải bởi qa.haylamdo.com

Đáp án C

Dịch nghĩa: Từ “microbes” - những loài vi sinh vật - ở đoạn 3 có thể thay thế tốt nhất bằng từ nào sau đây?

A. hạt bụi     B. bong bóng bị chặn lại C. sinh vật nhỏ xíu          D. tia sáng

Câu trả lời này có hữu ích không?

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

Mark the letter A, B, C or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

Xem đáp án » 27/08/2021 873

Câu 2:

Mark the letter A, B, C or D to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.

In 1989, a ban was given on all international trade in ivory.

Xem đáp án » 27/08/2021 652

Câu 3:

Mark the letter A, B, C or D to indicate the sentence that best combines each pair of sentences in the following questions.

The Prime Minister set up a committee of financial experts. They ere to help him discuss and formulate new policies.

Xem đáp án » 27/08/2021 459

Câu 4:

Read the following passage and mark the letter A, B, C or D to indicate the correct word or phrase that

best fits each of the numbered blanks from 31 to 35.

Early writing and Alphabets

When people first began to write, they did not use an alphabet. Instead, they drew small pictures to (31) _______ the objects they were writing about. This was very slow because there was a different picture for every word.

            The Ancient Egyptians had a (32) _______of picture writing that was called hieroglyphics. The meaning of this writing was forgotten for a very long time but in 1799 some scientists (33) _______ a stone near Alexandria, in Egypt. The stone had been there for over a thousand years. It had both Greek and hieroglyphics on it and researchers were finally able to understand what the hieroglyphics meant.

          An alphabet is quite different from picture writing. It (34) _______of letters or symbols that represent a sound and each sound is just part of one word. The Phoenicians, who lived about
3,000 years ago, developed the modern alphabets. It was later improved by the Roman's and this alphabet is now used (35) _______ throughout the world.

Điền vào ô 34.

Xem đáp án » 27/08/2021 331

Câu 5:

Mark the letter A, B, C or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

Xem đáp án » 27/08/2021 327

Câu 6:

Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.

Ironically, the new model is nowhere near as reliable as the old one.

Xem đáp án » 27/08/2021 327

Câu 7:

Read the following passage and mark the letter A, B, C or D to indicate the correct word or phrase that

best fits each of the numbered blanks from 31 to 35.

Early writing and Alphabets

When people first began to write, they did not use an alphabet. Instead, they drew small pictures to (31) _______ the objects they were writing about. This was very slow because there was a different picture for every word.

            The Ancient Egyptians had a (32) _______of picture writing that was called hieroglyphics. The meaning of this writing was forgotten for a very long time but in 1799 some scientists (33) _______ a stone near Alexandria, in Egypt. The stone had been there for over a thousand years. It had both Greek and hieroglyphics on it and researchers were finally able to understand what the hieroglyphics meant.

          An alphabet is quite different from picture writing. It (34) _______of letters or symbols that represent a sound and each sound is just part of one word. The Phoenicians, who lived about
3,000 years ago, developed the modern alphabets. It was later improved by the Roman's and this alphabet is now used (35) _______ throughout the world.

Điền vào ô 32.

Xem đáp án » 27/08/2021 284

Câu 8:

Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Xem đáp án » 27/08/2021 268

Câu 9:

Read the following passage and mark the letter A, B, C or D to indicate the correct word or phrase that

best fits each of the numbered blanks from 31 to 35.

Early writing and Alphabets

When people first began to write, they did not use an alphabet. Instead, they drew small pictures to (31) _______ the objects they were writing about. This was very slow because there was a different picture for every word.

            The Ancient Egyptians had a (32) _______of picture writing that was called hieroglyphics. The meaning of this writing was forgotten for a very long time but in 1799 some scientists (33) _______ a stone near Alexandria, in Egypt. The stone had been there for over a thousand years. It had both Greek and hieroglyphics on it and researchers were finally able to understand what the hieroglyphics meant.

          An alphabet is quite different from picture writing. It (34) _______of letters or symbols that represent a sound and each sound is just part of one word. The Phoenicians, who lived about
3,000 years ago, developed the modern alphabets. It was later improved by the Roman's and this alphabet is now used (35) _______ throughout the world.

Điền vào ô 31.

Xem đáp án » 27/08/2021 262

Câu 10:

Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.

"Lily has a lot on her mind", Mrs. Baker said.

Xem đáp án » 27/08/2021 231

Câu 11:

Mark the letter A, B, C or D to indicate the most suitable response to complete each of the following exchanges.

 Ken and Tom are high-school students. They meet each other at a gallery but Ken is in a hurry.

Ken: “I've got to go, Tom. So long”

Tom: “So long, Ken. And _______.”

Xem đáp án » 27/08/2021 209

Câu 12:

Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Xem đáp án » 27/08/2021 163

Câu 13:

Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.

 Did he mean to hurt her or did that happen accidentally?

Xem đáp án » 27/08/2021 163

Câu 14:

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

(A) The populace was (B) so terrified of the tornado that (C) however town she visited she found (D) villages deserted of inhabitants and livestock.

Xem đáp án » 27/08/2021 159

Câu 15:

Mark the letter A, B, C or D to indicate the most suitable response to complete each of the following exchanges.

- “How about giving me a hand?” – “____________.”

Xem đáp án » 27/08/2021 152

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