2017年职称英语综合B阅读理解模拟试题

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　　请根据短文内容，回答1~5题。

　　Japanese Drilling into Core of Earth

In what resembles a journey to the center of the Earth, Japanese scientists have launched the world's first attempt to bore a hole into the red-hot core of a volcano and unlock the secrets of deadly eruption.

A 50-meter-high oil-rig-like derrick perched on the scrubby slopes of Japan's Mount Unzen will begin drilling through the volcano's crust next week in a bid to sample the magma bubbling below.

The aim is to study how the liquefied rock causes menacing gas buildup, said team leader Setsuya Nakata, of the University of Tokyo's Earthquake Research Institute.

"Gassing is important because it controls the explosivity of eruptions," Nakata said. "The results can be expanded to anti-disaster research."

Mount Unzen, a wind-swept 1.486-meter dome on the southern island of Kyushu, is a perfect model. It erupted in 1991, showering avalanches of hot rocks over a nearby town, killing 43 people and leaving nearly 2,300 homeless. Another 11.000 people were evacuated from the area until 1995, when the volcano had stabilized.

The results are particularly important to a nation like Japan, where the meteorological agency monitors 20 dangerous peaks. Perhaps Japan's most famous volcano is snowcapped Mount Fuji,which last erupted in 1707 and sprinkled Tokyo with ash.

The drilling on Mount Unzen will begin very soon from an altitude of 850 meters on its northwest slope. Scientists hope to tap a magma vent around sea level by August and extract a 200-meter-long core sample by summer 2004.

Boring into the glowing magma at that level would normally be impossible, because of its fiery 700 degree Celsius heat. Thus, slurry of water will be pumped into the drill shaft to cool the magma and allow the drill head to cut through.

Nakata said there is no danger of triggering another eruption.

rding to the passage, Mount Unzen.

ted in 1707.

ted in 1991.

ted in 1995.

ral times in the last century.

rding to the passage, the study of the Mount Unzen volcano may benefit Japan in all the following aspects EXCEPT__________.

ing causes of volcano eruptions.

ing to launch anti-disaster research.

ing into the connection between liquified rocks and gas buildup.

icting volcano eruptions.

is this research project so important to Japan?

use Japan has many living volcanos.

use Japan wants to turn Mount Fuji to a dead volcano.

use volcano gas could be a source of energy.

use Japan is testing a new way of drilling into the earth.

drilling site on Mount Unzen is__________.

nd the sea level.

the northeast slope of the mountain.

t half way up the mountain.

high as 1,486 meters.

title of this passage Japanese Drilling into Core of Earth actually means that they__________.

l a hole into the core of a volcano.

into the rocks near the volcanic vent.

uct an imagery journey to the core of a volcano.

rd magma as the core of Earth.

1.参考答案：B

2.参考答案：D

3.参考答案：A

4.参考答案：C

5.参考答案：A