听力音频：
Questions 21-24
Which is the following feature of each of Autonomous Underwater Vehicles. (AUVS)?
A can stay in one area
B has special shape
C is made of strong material
D drives well on rough terrain
E acts the best in deep water
F senses the dangers on seabed
G uses solar energy
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S83: ________
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Sea Explorer:________
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Wave Rider:________
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T602:________
Questions 25-30
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Which aspect do students agree that the study on AUVs should depend on? A. cost of the technology B. location of the oil field C. data required
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Where did scientists believe oil off California coast came from? A. tanker B. underwater volcano C. ocean drilling sites
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What was the well-known Valin used for in oil exploration? A. it is the most advanced at the time B. it was low-cost and small C. it could avoid marine life easily
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What do researchers use Valin to analyze? A. oil’s chemical properties B. how much was the oil C. movements of underwater currents
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Why is it difficult to detect the impact of oil study on sea animals? A. oil is complex and unpredictable B. marine animals are hard to track C. the ocean floor changes constantly
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Why do researchers like to study oil seeps? A. it shows how sea animals change to suit the environment B. it helps predict oil reserve locations C. it’s easier to monitor over time
答案
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