1. The researchers hope to make contact with whatever "higher intelligence" may lie under the sea.
    这些研究人员希望能与任何可能居住在海底的"高级智能生命"接触。

2. He is a deep sea diver.
    他是深海潜水员。

3. Have you ever seen a lion in the zoo?
    你在动物园里见到过狮子吗？

4. His plane continued soaring at 5000 metres above sea level.
    他的飞机一直在海拔五千米的高空飞行。

5. He had many ships which traded with othercountries. Now his ships were all at sea.
    他拥有许多船只，与别的国家进行贸易。这时，他的船都在海上。

6. He had travelled only seven miles across the Channel when his engine failed and he was forced to land on the sea.
    但他只在海峡上空飞行7英里，引擎就发生了故障，他只好降落在海面上。

7. His engine failed and he landed on the sea for the second time.
    因引擎故障第二次降落在海面上。

8. Had he been walking north, away from the camp, toward the sea? He started slowly toward the ship, knowing full well the sick wolf was following him.
    难道他一直朝北走，离营地越来越远，走到海边来了？他站起身慢慢地向船走去，心里完全明白那条病狼准跟在后面。

9. Dennis ignored the warning and put his hand into the lion´s cage.
    丹尼斯不听警告把手放进了狮笼里。

10. Do you like sea?
    你喜欢海吗?