A.We know the exact number of whales in the sea. |
B.It’s easy for us to count whales in the sea. |
C.We find it impossible to count whales in the sea. |
D.We don’t want to know how many whales there are in the sea. |
A.more slowly than that of humpback whales |
B.faster than that of humpback whales |
C.as slowly as that of humpback whales |
D.as fast as that of humpback whales |
A.the number of humpback whales |
B.the number of right whales |
C.hunting whales |
D.the necessity of protecting whales |
科目:高中英语 来源:不详 题型:阅读理解
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科目:高中英语 来源:不详 题型:阅读理解
A.eight kilometers long and twenty meters wide |
B.eight kilometers long and six meters wide |
C.four kilometers long and twenty meters wide |
D.four kilometers long and six meters wide |
A.the lights | B.the electric signs |
C.the trucks and the cars | D. the emergency phones |
A.the construction of a road | B.the design of a road |
C.the construction of two tunnels | D.the design of two tunnels |
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科目:高中英语 来源:不详 题型:完形填空
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科目:高中英语 来源:不详 题型:阅读理解
A.The environment crisis will not be solved unless we stop using virgin(原始)materials. |
B.In scientific research, a higher priority(优先)should be given to understanding all living systems. |
C.Exploration of outer space will finally lead to an improvement on human living conditions. |
D.U. S. high-technology companies are welcoming this new change in scientific research. |
A.a growing number of Americans are doubtful about what high technology can do in solving the world’s problems. |
B.Many scientists are beginning to believe that the better understanding of human beings will play a more decisive role in solving the world’s problems. |
C.More and more young scientists are trying their best to find new ways to solve the world’s problems. |
D.Technological creativity will still play a very important part in solving the world’s problems. |
A.existing products be improved. |
B.more complex machines and electronic equipment be designed. |
C.ways be found to produce better goods using fewer raw materials. |
D.any new invention and innovation be encouraged in technology |
A.global food shortage | B.resources depletion(耗尽) |
C.environmental pollution | D.all of the above |
A.the development of present techniques cannot provide any answers to today’s problems. |
B.an increasing number of young scientists are taking a great interest in biological and social sciences. |
C.many scientists have come to understand the limits of natural resources. |
D.many scientists argue that high technology is something but not everything. |
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科目:高中英语 来源:不详 题型:阅读理解
A.they will not develop into phobias |
B.their influence is psychological |
C.they exist widely in the world |
D.they will disappear gradually |
A.make the same old mistake |
B.overcome them by themselves |
C.experience the worst of things |
D.grow up lacking self-confidence |
A.tell the child not to be afraid of it |
B.show the child how to approach it |
C.keep the child away from it |
D.ask the child to stroke it |
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科目:高中英语 来源:不详 题型:阅读理解
A.How the caves were formed on Mars. | B.How scientists found these caves on Mars. |
C.Caves on Mars may be full of hot air or a sign of life. | |
D.Scientists have completely recognized the surface of Mars. |
A.water has already been found on Mars | B.the scientists found all the caves at night |
C.it is certain that there is life in these caves | |
D.the surface of Mars is bitterly cold, radiation-soaked and dry |
A.such caves could provide energy for life | B.they had finally found the caves on Mars |
C.such caves would be perfect places to hunt for life | |
D.scientists had long been looking for these caves |
A.lava and energy | B.water and radiation from space |
C.gases and lava | D.water and protection from radiation |
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科目:高中英语 来源:不详 题型:阅读理解
A.North Asia | B.Australia |
C.South Pacific | D.South Asia |
A.the broad skull shape |
B.the narrow skull shape |
C.different features of Aboriginal Australians |
D.the same features of Native Americans |
A.likely to cause great interest | B.difficult to solve |
C.well-known to all | D.likely to cause argument |
A.Research on skulls can draw an exact conclusion. |
B.DNA tests have proved the fact that the first Native Americans came from Australian. |
C.Scientists are still not sure about the origin of the Native Americans. |
D.People began to enter America across the Bering Strait about 12,700 years ago. |
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科目:高中英语 来源:不详 题型:阅读理解
A.to report his classmates’ discussion | B.to invite an answer to his question |
C.to explain the natural state of Mars | D.to show his agreement on going to Mars |
A.There is a plan to send humans to Mars. |
B.There are many reasons for going to Mars. |
C.Scientists become famous by doing research on Mars. |
D.It is possible to build an Earth-like environment on Mars. |
A.humans need only a one-way ticket to Mars. |
B.two-way trips to Mars will be made safe soon |
C.it is easy to reduce the danger and cost of flights to Mars |
D.it is cheap to build an everlasting human settlement on Mars |
A.Humans will have to bring all they need from the Earth. |
B.Humans will find Mars totally unsuitable for living. |
C.Humans can produce everything they need. |
D.Humans can live longer in the colony on Mars |
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