解决免费的技能测试以备考 FCE Listening Part 2。在这一部分，你将听到一个关于：海洋探索（Ocean Exploration）的独白。你的任务是填补句子中的空白（Sentence Completion）。定期进行 FCE Listening Part 2 类型的练习是掌握释义和以最高分通过B2 First证书及英语扩展高考的最佳途径。用答案钥匙检查你的答案！
You will hear a talk about exploring the deep ocean. For questions 1-10, listen and complete the sentences with a word or short phrase.
The speaker notes that we have mapped more of the surface of than our own oceans.
The speaker notes that we have mapped more of the surface of than our own oceans.
The deepest known point on Earth is located in a region called the 海沟.
At extreme depths, the water is high enough to crush a standard submarine completely.
Due to the total absence of sunlight, deep-sea creatures rely on a process called to produce their own light.
Scientists were amazed to discover underwater hot springs known as hydrothermal .
The organisms living near these hot springs use rather than 光合作用 to survive.
One of the main obstacles to deep-sea exploration is the incredibly high of building specialized vehicles.
Researchers use uncrewed robotic to capture high-definition footage of the ocean floor safely.
A significant concern for marine biologists today is the massive accumulation of 污染 in the oceans.
The speaker strongly believes that the ocean holds the key to curing many human in the future.