[单项选择]Passage Two Questions 30 to 32 are based on the passage you have just heard.
A. Whether the security checks were really necessary.
B. How to cope with the huge crowds of visitors to the municipal building
C. Whether the security checks would create long queues at peak hours.
D. How to train the newly recruited security guards.

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[单项选择]Passage Two Questions 36 to 40 arc based on the following passage． Natural gas began with the plant and animal life of the earth’s prehistoric seas．Dead organisms settled on the ocean floor and were covered by layers of mud，silt(淤泥)，and the layers of mud，silt，and sand were compressed into solid rock．As millions of years passed，these rock layers bucked shifted．and accumulation of gas and oil were displaced and became trapped beneath masses of nonporous rock． Primitive man discovered natural gas quite by accident．The temple fires of Baku on the Caspian Sea(里海)were fired by natural gas seeping(渗漏)from rock fissures(裂缝)，and worshipers(礼拜者，崇拜者)of hire journeyed to Baku from ad afar away as India．The mysterious“burning springs”in North America and elsewhere were also evidence of escaping gas，probably ignited by lighting． The first industrial application of natural gas was made by the Chinese．Gas transported by bamboo pipes was burned to evaporate brine and produc
A. plant life
B. animal life
C. minerals
D. both a and b

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Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A. The changes of life styles have no influence on business.
B. Different people may have completely different life styles.
C. It’s doubtful what life styles are changing.
D. Life styles of different people are the same.

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[单项选择]Passage Two
Questions 29 to 32 are based on the passage you have just heard.
A. To offer a criticism of the works of Pearl Buck.
B. To illustrate Pearl Buck’s /views on Chinese literature.
C. To give a general introduction to Pearl Buck.
D. To discuss Pearl Buck’s influence on the cultures of the East and the West.

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[单项选择] Passage Two
Questions 30 to 32 are based on the passage you have just heard.
A. Grassland for animals.
B. A land covered with trees.
C. A steep slope of a hill.
D. A land with fertile soil.

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Passage Two

Questions 26 to 30 are based on the following passage.
Tides are created mainly by the pull of the moon on the earth. The moon’s pull causes water in the oceans to be a little deeper at a point closest to the moon and also at a point farthest from the moon, on the opposite side of the earth. These two tidal“waves”follow the apparent movement of the moon around the earth and strike nearly every coast line at intervals of about twelve hours and twenty-five minutes. After reaching a high point, the water level goes down gradually for a little more than six hours and then begins to rise toward a new high point. Hence, most coast lines have two tides a day, and the tides occur fifty minutes later each day. Differences in the coast line and in channels in the ocean bottom may change the time that the t
A. be the same height as they are now
B. be of equal height all the time
C. sometimes be higher than they are now
D. no longer be affected by the wind

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