Câu hỏi:
19/03/2020 1,452Read 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 30 to 34.
Ocean water plays an indispensable role in supporting life. The great ocean basins hold about 300 million cubic miles of water. From this vast amount, about 80,000 cubic miles of water are sucked into the atmosphere each year by evaporation and returned by precipitation and drainage to the ocean. More than 24,000 cubic miles of rain descend annually upon the continents. This vast amount is required to replenish the lakes and streams, springs and water tables on which all flora and fauna are dependent. Thus, the hydrosphere permits organic existence.
The hydrosphere has strange characteristics because water has properties unlike those of any other liquid. One anomaly is that water upon freezing expands by about 9 percent, whereas most liquids contract on cooling. For this reason, ice floats on water bodies instead of sinking to the bottom. If the ice sank, the hydrosphere would soon be frozen solidly, except for a thin layer of surface melt water during the summer season. Thus, all aquatic life would be destroyed and the interchange of warm and cold currents, which moderates climate, would be notably absent.
Another outstanding characteristic of water is that water has a heat capacity which is the highest of all liquids and solids except ammonia. This characteristic enables the oceans to absorb and store vast quantities of heat, thereby often preventing climatic extremes. In addition, water dissolves more substances than any other liquid. It is this characteristic which helps make oceans a great storehouse for minerals which have been washed down from the continents. In several areas of the world these minerals are being commercially exploited. Solar evaporation of salt is widely practised, potash is extracted from the Dead Sea, and magnesium is produced from sea water along the American Gulf Coast.
The author’s main purpose in this passage is to ___________.
Sách mới 2k7: 30 đề đánh giá năng lực DHQG Hà Nội, Tp. Hồ Chí Minh, BKHN 2025 mới nhất (600 trang - chỉ từ 160k).
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Trả lời:
Đáp án B.
Dịch câu hỏi: Mục đích chính của tác giả trong đoạn văn này là để ___________.
A. minh họa tầm quan trọng của việc bảo tồn nước
B. mô tả tính chất và công dụng của nước
C. so sánh nước với các chất lỏng khác
D. giải thích cách sử dụng nước trong thương mại và công nghiệp
Thông tin: “Ocean water plays an indispensable role in supporting life.” (Nước biển đóng vai trò không thể thiếu trong việc hỗ trợ cuộc sống.)
“The hydrosphere has strange characteristics because water has properties unlike those of any other liquid.” (Thủy quyển có những đặc điểm kỳ lạ vì nước có đặc tính không giống với bất kỳ chất lỏng nào khác.)
“Another outstanding characteristic of water is that water has a heat capacity,...” (Một đặc điểm nổi bật khác của nước là nước có nhiệt dung,...)
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 correct answer to each of the following questions.
If it’s raining tomorrow, we shall have to ______ the match till Sunday.
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.
_______ in large quantities in the Middle East, oil became known as black gold because of the large profit it brought.
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 think everyone wants to make friends with John. He is _____ honest person.
Câu 4:
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.
Owing (A) to their superior skills, highly competitive (B) athletes have been known (C) to win contests and break records even when suffered (D) from injuries, physical disorders, and infections.
Câu 5:
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.
The new technique calls (A) for heat (B) the mixture before applying it (C) to the wood. (D)
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
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.
There’s no _______ in going to school if you’re not willing to learn.
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