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08/08/2023 1,386
Part 2. Questions 66 – 75 (2.0 points - 0.2/ each)
Read the passage below and choose the best answer to each question
Early peoples had no need of engineering works to supply their water. Hunters and nomads camped near natural sources of fresh water, and populations were so sparse that pollution of the water supply was not a serious problem. After community life developed and agricultural villages became urban centres, the problem of supplying water became important for inhabitants of a city, as well as for irrigation of the farms surrounding the city. Irrigation works were known in prehistoric times, and before 2000 BC the rulers of Babylonia and Egypt constructed systems of dams and canals to impound the flood waters of the Euphrates and Nile rivers, controlling floods and providing irrigation water throughout the dry season. Such irrigation canals also supplied water for domestic purposes. The first people to consider the sanitation of their water supply were the ancient Romans, who constructed a vast system of aqueducts to bring the clean waters of the Apennine Mountains into the city and built basins and filters along these mains to ensure the clarity of the water. The construction of such extensive water-supply systems declined when the Roman Empire disintegrated, and for several centuries local springs and wells formed the main source of domestic and industrial water.
The invention of the force pump in England in the middle of the 16th century greatly extended the possibilities of development of water-supply systems. In London, the first pumping waterworks was completed in 1562; it pumped river water to a reservoir about 37 m above the levelof the River Thames and from the reservoir the water was distributed by gravity, through lead pipes, to buildings in the vicinity.
Increased per-capita demand has coincided with water shortages in many countries. Southeast England, for example, receives only 14 per cent of Britain's rainfall, has 30 per cent of its population, and has experienced declining winter rainfall since the 1980s.
In recent years a great deal of interest has been shown in the conversion of seawater to fresh water to provide drinking water for very dry areas, such as the Middle East. Several different processes, including distillation, electrodialysis, reverse osmosis, and direct-freeze evaporation, have been developed for this purpose. Some of these processes have been used in large facilities in the United States. Although these processes are successful, the cost of treating seawater is much higher than that for treating fresh water.
Early peoples didn’t need water supply engineering works because ______.
Part 2. Questions 66 – 75 (2.0 points - 0.2/ each)
Read the passage below and choose the best answer to each question
Early peoples had no need of engineering works to supply their water. Hunters and nomads camped near natural sources of fresh water, and populations were so sparse that pollution of the water supply was not a serious problem. After community life developed and agricultural villages became urban centres, the problem of supplying water became important for inhabitants of a city, as well as for irrigation of the farms surrounding the city. Irrigation works were known in prehistoric times, and before 2000 BC the rulers of Babylonia and Egypt constructed systems of dams and canals to impound the flood waters of the Euphrates and Nile rivers, controlling floods and providing irrigation water throughout the dry season. Such irrigation canals also supplied water for domestic purposes. The first people to consider the sanitation of their water supply were the ancient Romans, who constructed a vast system of aqueducts to bring the clean waters of the Apennine Mountains into the city and built basins and filters along these mains to ensure the clarity of the water. The construction of such extensive water-supply systems declined when the Roman Empire disintegrated, and for several centuries local springs and wells formed the main source of domestic and industrial water.
The invention of the force pump in England in the middle of the 16th century greatly extended the possibilities of development of water-supply systems. In London, the first pumping waterworks was completed in 1562; it pumped river water to a reservoir about 37 m above the levelof the River Thames and from the reservoir the water was distributed by gravity, through lead pipes, to buildings in the vicinity.
Increased per-capita demand has coincided with water shortages in many countries. Southeast England, for example, receives only 14 per cent of Britain's rainfall, has 30 per cent of its population, and has experienced declining winter rainfall since the 1980s.
In recent years a great deal of interest has been shown in the conversion of seawater to fresh water to provide drinking water for very dry areas, such as the Middle East. Several different processes, including distillation, electrodialysis, reverse osmosis, and direct-freeze evaporation, have been developed for this purpose. Some of these processes have been used in large facilities in the United States. Although these processes are successful, the cost of treating seawater is much higher than that for treating fresh water.
Early peoples didn’t need water supply engineering works because ______.
Quảng cáo
Trả lời:
Giải bởi Vietjack
Chọn B
Câu hỏi cùng đoạn
Câu 2:
The word “impound” in paragraph 1 is closest in meaning to “______”.
Lời giải của GV VietJack
Chọn D
Câu 3:
Clean water supply was first taken into consideration by ______.
Clean water supply was first taken into consideration by ______.
Lời giải của GV VietJack
Chọn B
Câu 4:
For several centuries after the disintegration of the Roman Empire, the main source of water supply was from ______.
For several centuries after the disintegration of the Roman Empire, the main source of water supply was from ______.
Lời giải của GV VietJack
Chọn A
Câu 5:
The word “mains” in paragraph 1 could best be replaced by “______”.
Lời giải của GV VietJack
Chọn C
Câu 6:
Which of the following is NOT true about London’s water supply in the middle of the 16th century?
Which of the following is NOT true about London’s water supply in the middle of the 16th century?
Lời giải của GV VietJack
Chọn D
Câu 7:
The word “vicinity” in paragraph 2 refers to ______.
The word “vicinity” in paragraph 2 refers to ______.
Lời giải của GV VietJack
Chọn C
Câu 8:
One of the causes of water shortages in South-east England is ______.
One of the causes of water shortages in South-east England is ______.
Lời giải của GV VietJack
Chọn B
Câu 9:
Which of the following is NOT mentioned as a process of conversing seawater to freshwater?
Which of the following is NOT mentioned as a process of conversing seawater to freshwater?
Lời giải của GV VietJack
Chọn C
Câu 10:
In the passage, the author mainly discusses ______.
In the passage, the author mainly discusses ______.
Lời giải của GV VietJack
Chọn A
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