Câu hỏi:
31/10/2023 1,140
In the past oysters were raised in much the same way as dirt farmers raised tomatoes - by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about. Next, they "planted" fertilized oyster eggs, which within two or three weeks hatched into larvae. The larvae drifted until they attached themselves to the clean shells on the bottom. There they remained and in time grew into baby oysters called seed or spat. The spat grew larger by drawing in seawater from which they derived microscopic particles of food. Before long farmers gathered the baby oysters transplanted them in other waters to speed up their growth, then transplanted them once more into another body of water to fatten them up.
Until recently; the supply of wild oysters and those crudely farmed were more than enough to satisfy people's needs. But today the delectable seafood is no longer available in abundance. The problem has become so serious that some oyster beds have vanished entirely.
Fortunately, as far back as the early 1900's marine biologists realized that if new measures were not taken, oysters would become extinct or at best a luxury food. So they set up well equipped hatcheries and went to work. But they did not have the proper equipment or the skill to handle the eggs. They did not know when, what, and how to feed the larvae. And they knew little about the predators that attack and eat baby oysters by the millions. They failed, but they doggedly kept at it. Finally, in the 1940's a significant breakthrough was made.
The marine biologists discovered that by raising the temperature of the water, they could induce oysters to spawn not only in the summer but also in the fall, winter, and spring. Later they developed a technique for feeding the larvae and rearing them to spat. Going still further, they succeeded in breeding new strains that were resistant to diseases, grew faster and larger, and flourished in water of different salinities and temperatures. In addition, the cultivated oysters tasted better.
Which of the following would be the best title for the passage?
In the past oysters were raised in much the same way as dirt farmers raised tomatoes - by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about. Next, they "planted" fertilized oyster eggs, which within two or three weeks hatched into larvae. The larvae drifted until they attached themselves to the clean shells on the bottom. There they remained and in time grew into baby oysters called seed or spat. The spat grew larger by drawing in seawater from which they derived microscopic particles of food. Before long farmers gathered the baby oysters transplanted them in other waters to speed up their growth, then transplanted them once more into another body of water to fatten them up.
Until recently; the supply of wild oysters and those crudely farmed were more than enough to satisfy people's needs. But today the delectable seafood is no longer available in abundance. The problem has become so serious that some oyster beds have vanished entirely.
Fortunately, as far back as the early 1900's marine biologists realized that if new measures were not taken, oysters would become extinct or at best a luxury food. So they set up well equipped hatcheries and went to work. But they did not have the proper equipment or the skill to handle the eggs. They did not know when, what, and how to feed the larvae. And they knew little about the predators that attack and eat baby oysters by the millions. They failed, but they doggedly kept at it. Finally, in the 1940's a significant breakthrough was made.
The marine biologists discovered that by raising the temperature of the water, they could induce oysters to spawn not only in the summer but also in the fall, winter, and spring. Later they developed a technique for feeding the larvae and rearing them to spat. Going still further, they succeeded in breeding new strains that were resistant to diseases, grew faster and larger, and flourished in water of different salinities and temperatures. In addition, the cultivated oysters tasted better.
Which of the following would be the best title for the passage?
Đáp án chính xác
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Trả lời:
Giải bởi Vietjack
B
Dựa vào những thông tin trong các đoạn, có thể thấy tất cả đều liên quan đến việc nuôi trồng hàu ® suy ra tiêu đề phù hợp nhất cho đoạn văn sẽ là “ Sự nuôi trồng loài hàu” (The Cultivation of Oysters)
Câu hỏi cùng đoạn
Câu 2:
In the first paragraph, the production of oysters is compared to what other industry?
In the first paragraph, the production of oysters is compared to what other industry?
Đáp án chính xác
Lời giải của GV VietJack
: D
Dựa vào câu “In the past oysters were raised in much the same way as dirt farmers raised tomatoes” trong đoạn văn đầu, sản phẩm hàu được so sánh với ngành nông nghiệp.
Câu 3:
In the passage, which of the following is NOT mentioned as a stage of an oyster's life?
In the passage, which of the following is NOT mentioned as a stage of an oyster's life?
Đáp án chính xác
Lời giải của GV VietJack
A
Dựa vào đoạn “Next, they" planted" fertilized oyster eggs, which within two or three weeks hatched into larvae. The larvae drifted until they attached themselves to the clean shells on the bottom. There they remained and in time grew into baby oysters called seed or spat. The spat grew larger by drawing in seawater from which they derived microscopic particles of food” ® các đáp án B, C, D đã được đề cập đến trong đoạn văn như là một giai đoạn của vòng đời loài hàu.
Câu 4:
When did scientists discover that oysters were in danger?
When did scientists discover that oysters were in danger?
Đáp án chính xác
Lời giải của GV VietJack
B
Theo thông tin trong bài “Until recently; the supply of wild oysters and those crudely farmed were more than enough to satisfy people's needs. But today the delectable seafood is no longer available in abundance. The problem has become so serious that some oyster beds have vanished entirely”® các nhà khoa học phát hiện rằng loài hàu đang gặp nguy hiểm ở trong đầu thế kỷ này.
Câu 5:
According to the passage, which of the following words best describes the efforts of the marine biologists working with oysters?
According to the passage, which of the following words best describes the efforts of the marine biologists working with oysters?
Đáp án chính xác
Lời giải của GV VietJack
: A
Dựa vào đoạn “So they set up well equipped hatcheries and went to work. But they did not have the proper equipment or the skill to handle the eggs. They did not know when, what, and how to feed the larvae. And they knew little about the predators that attack and eat baby oysters by the millions. They failed, but they doggedly kept at it. Finally, in the 1940’s a significant breakthrough was made” ® những nhà sinh vật học đã nỗ lực một cách kiên trì ® chọn A
Câu 6:
In the passage, the author mentions that the new strains of oyster are ________.
In the passage, the author mentions that the new strains of oyster are ________.
Đáp án chính xác
Lời giải của GV VietJack
D
Thông tin trong bài “…they succeeded in breeding new strains that were resistant to diseases, grew faster and larger, and flourished in water of different salinities and temperatures...” giống hàu mới khỏe mạnh hơn ® chọn D
Câu 7:
In what paragraph does the author describe successful methods for increasing
the oyster population?
In what paragraph does the author describe successful methods for increasing
the oyster population?
Đáp án chính xác
Lời giải của GV VietJack
D
Những phương pháp thành công cho việc làm tăng số lượng hàu được miêu tả trong đoạn thứ tư “The marine biologists discovered that by raising the temperature of the water, they ... oysters tasted better” ® chọn đáp án D
Câu 8:
Which of the following best describes the organization of the passage?
Which of the following best describes the organization of the passage?
Đáp án chính xác
Lời giải của GV VietJack
B
Dựa vào nội dung của đoạn văn, ta thấy đầu tiên tác giả nói đến việc nuôi hàu, tiếp đến là đến vấn đề loài hàu có nguy cơ bị tuyệt chủng, tiếp đến là những nỗ lực của các nhà sinh vật học để làm tăng số lượng hàu, và cuối cùng sau đó họ nhân giống được những giống hàu mới ® có thể thấy cách viết của đoạn văn là thảo luôn về những sự việc thời gian liên quan đến việc sản xuất hàu.
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