Microplastics, referring to plastic fragments and particles (碎片和微粒) less than 5 millimeters in diameter (直径), have been found on Mount Qomolangma as high as 8,440 meters above sea level, just 408.86 meters below the peak of the mountain, according to a recent study published in the journal One Earth. Scientists collected snow and water samples from 19 different
2 . In the South Atlantic Ocean, there is an island called Tristan da Cunha, which is a six day boat ride from the nearest town Cape Town in South Africa. There’s no airport on Tristan. Every month or so, a boat will bring visitors but not many. The boat will also bring mail and supplies. You can only see about 270 people, 300 cows, 500 sheep, and a whole lot of penguins there.
The British tried to build a military base there in 1816. They gave up after a year. But a soldier and his family talked a few people into staying. Those people slowly built a community. Few trees grow on the island. So they found wood that washed ashore. They used it to build homes and boats. For food, they raised cows, sheep and pigs. They fished and planted potatoes. They promised to share everything they had. Sometimes ships brought supplies to Tristan. But for many years, no one there used money. Instead, people on the island traded potatoes for supplies. It cost five potatoes to send a piece of mail.
Today, nearly everyone on Tristan is a farmer. The island’s main industry is fishing. It has a single factory that cans fish.
Several times, bad luck has nearly destroyed the town on Tristan. In 1885, men died in a boat accident. That left 13 women and only 4 adult men on the island. Still, everyone stayed. In 1961, a bigger disaster stuck. The town was destroyed by a volcanic eruption. All 290 people on the island moved to England. But soon, nearly all of them moved back to the island and rebuilt their town.
What’s so special about life on this lonely island? For islanders like Harold Green, that’s an easy question to answer. Green has lived on Tristan his whole life. He left when the volcano erupted. But England was too loud and too crowded for him. He came back because the island is peaceful.
1. What was used as money on Tristan in the past?| A．Fish. | B．Wood. | C．Sheep. | D．Potatoes |
| A．A deadly boat accident. |
| B．A terrible natural disaster. |
| C．The attraction of modern life. |
| D．The building of a British military base. |
| A．Bored | B．Hopeful. | C．Satisfied | D．Regretful. |
| A．A lonely island. |
| B．A special lifestyle. |
| C．A famous fishing town. |
| D．A popular tourist attraction. |
