题目内容
（请给出正确答案）
A．calling people's attention to the true value of water
B．blowing up dams that affect the supply of fresh water
C．adopting sound water conservation policies
D．finding the best way to distribute the world's water
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更多“To solve the water supply prob…”相关的问题
The purpose of Paragraph 2 is to ______.
A．show privatized water is world's direction to solve water crisis.
B．explain why $37 billion will be invested to solve the problem of water shortage in Saudi Arabia.
C．show Saudis consumed too much water even though Saudi Arabia is the driest parts of the globe.
D．call for government to find more solutions for water conservation.
What does the last sentence in the 3(上标)rd paragraph mean according to the passage？
A．The patient is seriously ill because of lack of water in the well.
B．The patient can be saved if he has enough money to solve the financial problem.
C．It's too late for small business owners to realize the gravity of the problem because they have used up their money.
D．It's too late for small business owners to realize the gravity of the problem because they have used up their business.
What does the last sentence in the 3rd paragraph mean according to the passage？
A．The patient is seriously iii because of lack of water in the well.
B．The patient can be saved if he has enough money to solve the financial problem.
C．It's too late for small business owners to realize the gravity of the problem because they have used up their money.
D．It's too late for small business owners to realize the gravity of the problem because they have used up their business.
What does the last sentence in the 3rd paragraph mean according to the passage？
A．The patient is seriously iii because of lack of water in the well.
B．The patient can be saved if he has enough money to solve the financial problem.
C．It's too late for small business owners to realize the gravity of the problem because they have used up their money.
D．It's urgent for small business owners to pour all their money into the enterprise to revitalize their business.
What does the last sentence in the 3rd paragraph mean according to the passage？
A．The patient is seriously iii because of lack of water in the well.
B．The patient can be saved if he has enough money to solve the financial problem.
C．It's too late for small business owners to realize the gravity of the problem because they have used up .their money.
D．It's urgent for small business owners to pour all their money into the enterprise to revitalize their business.
Passage Four
Archimedes was a famous Greek mathematician and scientist. He was born around 287 BC and he died in the year 212 BC.
Archimedes is most well-known for one specific idea that he came up with. "Archimedes's Principle" states that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that the object moves. For example, if you put a piece of wood and a piece of gold the same size in water, only the wood will float. Both the wood and gold move the same amount of water, but the wood weighs less than this water, while the gold weighs more.
It is believed that Archimedes discovered this principle when the king of Syracuse asked him to solve a problem. The king wanted to know if his crown was pure gold or a mixture of gold and silver. The king, of course, did not melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the king.
48. A good title for the selection is______.
A. Archimedes
B. Archimedes's Principle
C. A Gold and Silver Crown
D. The King of Syracuse
Like all large cities, New York has old problems to solve and【21】ones to face. Slums(贫民窟) must be cleared, and new housing constructed.【22】jams continues to plague(折磨) the city's overcrowded streets. Not only must new highways be【23】, but old ones must be repaired. Protecting the【24】and safety of New Yorkers【25】an army of police, firemen, and sanitation(卫生) workers. Finding an adequate water【26】is a constant problem, as is the attraction of new business and industry to boost the city's【27】. Caring for the sick,【28】the young, providing【29】the needy, and helping newcomers to adjust to big city life are additional tasks【30】the city must perform.
In spite of New York's【31】, millions of visitors continue to flock to the city each year. Thousands stay to work and【32】in the city,【33】to New York's human resources. New Yorkers are working hard to【34】their city's needs and to keep it a world【35】of culture, industry, and commerce. New York buzzes with the sounds of machines tearing down and building up the city, changing its face for tomorrow's world.
(41)
A．easy
B．hard
C．new
D．many
Archimedes is well-known for one specific (精确的) idea that he came up with. "Archime des' principle" tells us that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that moves. For example, if you put a piece of wood and a piece of metal of the same size in water, only the wood will float. Both the wood and metal move the same amount (量) of water, but the water moved by the wood weighs less than that of the water moved by the gold. It is believed that Archimedes discovered this principle when the King of Syracuse asked him to solve a problem. The King wanted to know if his crown (皇冠) was pure gold or a mixture of gold and silver. The King, of course, did not want to melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than the one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the King.
The best title for this passage is ______
A．Archimedes
B．Archimedes's principle
C．A Gold and Silver Crown
D．The King of Syracuse
Archimedes is most well-known for one specific idea that he came up with. "Archimedes's Principle" states that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that the object moves. For example, if you put a piece of wood and a piece of gold the same size in water, only the wood will float. Both the wood and gold move the same amount of water, but the wood weighs less than this water, while the gold weighs more.
It is believed that Archimedes discovered this principle when the king of Syracuse asked him to solve a problem. The king wanted to know if his crown was pure gold or a mixture of gold and silver. The king, of course, did not melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the king.
A good title for the selection is______.
A．Archimedes
B．Archimedes's Principle
C．A Gold and Silver Crown
D．The King of Syracuse
Archimedes is most well-known for one specific idea that he came up with. "Archimede's Principle" states that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that the object moves. For example, if you put a piece of wood and a piece of gold the same size in water, only the wood will float. Both the wood and gold move the same amount of water, but the wood weighs less than this water, while the gold weighs more.
It is believed that Archimedes discovered this principle when the king of Syracuse asked him to solve a problem. The king wanted to know if his crown was pure gold or a mixture of gold and silver. The king, of course, did not melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the king.
A good title for the selection is ______.
A．Archimedes
B．Archimedes' Principle
C．A gold and silver crown
D．The king of Syracuse
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