1 . A perfectly preserved wreck (沉船) that has lain unnoticed in the icy Baltic Sea for over 500 years has finally been confirmed. The European ship was first observed in 2009, when a sonar(声呐) exploration by the Swedish Maritime Administration (SMA) indicated a large object in the area. However, it was not until early 2019 that researchers from Soton and MMT found evidence of the sunken ship using underwater robotic cameras.
When the team observed the pictures of the 60-foot-long shipwreck, they were surprised to discover it was 99 percent complete. The scientists considered that the wreck's good condition is due to its place in the Baltic Seabed, where the oxygen levels are low. Oxygen is key to most ocean life's survival. Therefore, such an environment where the shipwreck stays reduces or completely removes the creatures that feed on rotting wood.
So although this ship is contemporary to the times of Christopher Columbus, it shows a remarkable level of preservation after 500 years at the bottom of the sea. Dr. Pacheco-Ruiz, who led the MMT effort, said,“It's almost like it sank yesterday. It's a truly astonishing sight."
The scientists are unsure what let the ship sink. However, the ship's guns, which are in their"ready to fire" positions, indicate it may have been the victim of a naval battle. Since the ship dates back to the early 16th century, historians predict it may have sunk during Sweden's three year independence war with its Danish rulers between 1521 and 1523. Alternatively, it could also have been involved in the border dispute (争端) between Russia and Sweden from 1554 to 1557.
The ship is by far the best-preserved shipwreck ever found from the Age of Exploration, when Europeans explored the world by sea.
What's more exciting is that the ship is similar to the Pinta and La Nina, which Comlubus famously sailed toward North America. The scientists, who continue to observe the shipwreck hope the boat's design will expose some of the technologies available to the Italian explorer during his 1492 voyage of discovery.
1. What scientific achievement did Soton 's and MMT' s researchers make?| A．Discovering a wreck using sonar. |
| B．Getting the wreck out or icy water. |
| C．Identifying the object found by SMA. |
| D．Making the ancient wreck well preserved. |
| A．It is generally unfit for creatures to live in. | B．It is tough for scientists to do research. |
| C．It contains too many harmful gases. | D．It is filled with rotting wood. |
| A．his curiosity about the time when the ship sank |
| B．his amazement at the ship's previous grandness |
| C．his surprise at the wreck's well-preserved condition |
| D．his shock at the sinking of the great European ship |
| A．The damage to the ship. | B．The causes of the ship's sinking. |
| C．The construction of the ship. | D．The possible function of the ship. |
| A．Recovering the ancient ships, the Pinta and La Nina. |
| B．Finding every aspect of life in the Age of Exploration. |
| C．Exploring the role the ship played in Columbus' exploration. |
| D．Leaning about Columbus' voyage according to the ship's design. |
