Câu hỏi:
13/07/2024 975Read 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. Though Edmund Halley was most famous because of his achievements as an astronomer, he was a scientist of diverse interests and great skill. In addition to studying the skies, Halley was also deeply interested exploring the unknown depths of the oceans. One of his lesser-known accomplishments that was quite remarkable was his design for a diving bell that facilitated exploration of the watery depths.
The diving bell that Halley designed had a major advantage over the diving bells that were in use prior to his. Earlier diving bells could only make use of the air contained within the bell itself, so divers had to surface when the air inside the bell ran low. Halley's bell was an improvement in that its design allowed for an additional supply of fresh air that enabled a crew of divers to remain underwater for several hours.
The diving contraption that Halley designed was in the shape of a bell that measured three feet across the top and five feet across the bottom and could hold several divers comfortably; it was open at the bottom so that divers could swim in and out at will. The bell was built of wood, which was first heavily tarred to make it water repellent and was then covered with a half-ton sheet of lead to make the bell heavy enough to sink in water. The bell shape held air inside for the divers to breathe as the bell sank to the bottom.
The air inside the bell was not the only source of air for the divers to breathe, and it was this improvement that made Halley's bell superior to its predecessors. In addition to the air already in the bell, air was also supplied to the divers from a lead barrel that was lowered to the ocean floor close to the bell itself. Air flowed through a leather pipe from the lead barrel on the ocean floor to the bell. The diver could breath the air from a position inside the bell, or he could move around outside the bell wearing a diving suit that consisted of a lead bell-shaped helmet with a glass viewing window and a leather body suit, with a leather pipe carrying fresh air from the diving bell to the helmet
The expression ran low in paragraph 2 is closest in meaning to
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Trả lời:
Đáp án là D.
Cụm từ “ran low” ở đoạn 2 gần nghĩa nhất với
A. Di chuyển chậm chạp
B. Đã được làm đầy lại
C. Chìm đến đáy
D. Gần như cạn kiệt
....divers had to surface when the air inside the bell ran low. [ Thợ lặn phải trở lại mặt nước khin không khí bên trong sắp cạn kiệt.]
Đã bán 188
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 correct answer to each of the following questions
She applied for training as a pilot, but they turned her ________ because of her poor eyesight
Câu 2:
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
You look tired. Why don’t we ________ and have a good rest?
Câu 3:
Mark the letter A, B, C or D on your answer sheet to indicate the most suitable respond to complete each of the following exchanges
Joanne: “You should have flown with the earlier flight!” Alex: “___________”
Câu 4:
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
If only I had taken his advice
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
You mustn’t ________ these difficult exercises; do them all
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions
After being questioned for a few minutes, John finally admitted to steal his friend’s money
Câu 7:
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions
George didn’t attend school for six weeks as he had to stay in hospital where he was ________ for pneumonia
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