Foreign guests from
In AD 79, the ancient Roman city of Pompeii, in southern Italy,
Researchers, Danilo Campanaro and Giacomo Landeschi, from Lund University in Sweden, used data that were collected by drones to create
增加:在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线，并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词;
2.只允许修改10处，多者(从第11处起)不计分。
Since the digging of No.3 to No.8 sites begin in October last year, about 500 pieces of relics (文物) have been found at Sanxingdui Ruins in southwest China Sichuan Province. The relics, discovered at six new sites, include the golden masks. Many of them are unique shaped. The new finds have brought the total amount of the relics discovered at the ruins to nearly 2,000. The discoveries has shown that ancient China is far more developed we have expected.
Sanxingdui was discovered in the early twenty century. It has been considering as one of the greatest archaeological (考古的) wonder in the world.
4 . The researchers say they have discovered two huge magma chambers (岩浆库) under Wei Mountain in Heilongjiang. If it is true, it will be a surprising discovery since the volcano last erupted over 500,000 years ago.
Zhang Haijiang and his team visited nearly 100 sites across Wei Mountain. They were looking for magma, and they found an unusual signal from 15km underground, followed by another one at 8km. Their computer modelling suggested there could be two huge magma chambers with a depth of more than 9km. According to their research, 15 percent of the upper chamber is now filled with molten (熔化的) rock. Some studies have suggested that a volcanic eruption could take place when a chamber is filled to 40 percent magma.
They suggested that the volcanic activity in northeast China is likely to be in an active stage, and the active volcanic monitoring is needed to further understand the magma system in this area.
Xu Jiandong, director of the volcanic research, said seismic (地震的) stations had been monitoring this area for many years. "If there are really huge magma chambers in the area, we should have found some related seismic activities—When the lower chamber fills the upper one, there should be some movement," he said. "But so far, after decades of monitoring on the site, we've picked up almost nothing. The whole area has been very, very quiet," he added.
So did the researchers really find huge magma chambers? While the unusual signals found by Zhang's team looked like magma chambers, they could also have been caused by other things.
But what is for sure is that the area is active. It's like porridge boiling in a pot. But since the studies in recent years have suggested a low risk of immediate eruption in the area, the government has not set up seismic stations around. And it is certain that they aren't prepared for a big eruption over there.
1. What do Zhang Haijiang and his team say they've found under Wei Mountain?| A．Lots of frozen rocks. | B．Two magma chambers. |
| C．Nearly 100 volcanic sites. | D．A huge magma system. |
| A．They don't find any seismic activities. |
| B．The active volcanic monitoring is needed. |
| C．Their efforts to monitor volcanoes are useless. |
| D．Volcanic eruptions never happened in this area. |
| A．Volcanic eruptions. | B．Zhang's team members. |
| C．The seismic stations. | D．The unusual signals. |
| A．What Can Cause Volcanoes to Erupt in Northeast China? |
| B．Is Chinese Government Ready for Volcanic Eruptions? |
| C．Are There Magma Chambers Under Wei Mountain? |
| D．Is Active Volcanic Monitoring Needed in China? |
