[简答题]

WATER AND LIFE ON MARS

1 The presence or absence of water has a direct bearing on the possibility of life on other planets. In the nineteenth century, it was commonly accepted that life, perhaps even intelligent life, was widespread in the solar system, and Mars was an obvious target in the search for life. New photographic technology offered a way for astronomers to learn more about the red planet. In 1888, Italian astronomer Giovanni Schiaparelli produced images that showed a network of long, thin, dark lines crossing the surface of Mars. He called these features canali in Italian, which became "canals" or "channels" in English. The strange appearance of the canals suggested to some scientists that they had been formed artificially rather than naturally. The mystery deepened when Schiaparelli observed that many of the canals in the photographs were actually double.
2 Other photographic images of Mars revealed its seaso

[单项选择]
1 The presence or absence of water has a direct bearing on the possibility of life on other planets. In the nineteenth century, it was commonly accepted that life, perhaps even intelligent life, was widespread in the solar system, and Mars was an obvious target in the search for life. New photographic technology offered a way for astronomers to learn more about the red planet. In 1888, Italian astronomer Giovanni Schiaparelli produced images that showed a network of long, thin, dark lines crossing the surface of Mars. He called these features canali in Italian, which became "canals" or "channels" in English. The strange appearance of the canals suggested to some scientists that they had been formed artificially rather than naturally. The mystery deepened when Schiaparelli observed that many of the canals in the photographs were actually double.
2 Other photographic images of Mars revealed its seasonall
A. How Mars compares to other planets in the solar system
B. Who built the network of canals on the surface of Mars
C. Whether signs of water indicate that life has existed on Mars
D. How soon astronauts from Earth will be able to go to Mars

[单项选择]

Fresh water life itself, has never come easy in the Middle East. Ever since the Old Testament God punished man with 40 days and 40 nights of rain, water supplies here have been dwindling. The rainfall only comes in winter, Inshallah—Good willing—and drains quickly through the semiarid land, leaving the soil to bake and to thirst for next November.
The region’s accelerating population, expanding agriculture, industrialization, and higher living standards demand more fresh water. Drought and pollution limit its availability. War and mismanagement squander it. Says Joyce Starr of the Global Water Summit Initiative, based in Washington D. C. "Nations like Israel and Jordan are swiftly sliding into that zone where they are suing all the water resources available to them. They have only 15 to 20 years left before their agriculture, and ultimately their food security, is threatened."
I came here to examine this crisis in the making, to investi
A. according to the Ole Testament fresh water is available only in November
B. rainfall comes only in winter starring form November
C. running water systems will not be ready until next November
D. it is a custom in that region that irrigation to crops is done only in November

[单项选择]"This study proves that there is no life on Mars. "
"But（）man still（）there is. "
A. a great deal... think
B. a great many... think
C. much... thinks
D. many a... thinks

[多项选择]Explain the importance of water to life, including the following points:
Outline 1. Water is essential for life.
2. Water is an important part of body structure.
3. A healthy body needs water to perform all the tasks.
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