1. What is the main topic of the talk?
A.Details of ancient history. |
B.Stories of 20th-century explorers. |
C.Development of modern technology. |
A.Energetic. | B.Mysterious. | C.Crazy. |
A.Around 1850. | B.Around 1900. | C.Around 1950. |
A.Percy Fawcett. |
B.Joao da Silva Guimaraes. |
C.Arthur Conan Doyle. |
Archaeologists (考古学家) have found two shipwrecks (沉船) deep in the South China Sea, which serve as a witness to
The No. 1 shipwreck
This is one of the most important archaeological
Located in the Yangtze River Basin, the archaeological (考古的) ruins of Liangzhu date back to 3, 300~2, 300 BC. The ruins reveal a nearly state with a unified belief system based on rice cultivation (种植), and this state
Chen Minghui, archaeologist and director of the Liangzhu Workstation, has an
Having worked in Liangzhu for 11 years, Chen is always
A well-preserved tomb from the Western Han Dynasty (206 BC-AD 24), with a clear record of the year when it
According to Huang Wei, leader of the project,
Due to being filled with water, the tomb remained
“
Based on
This is a major archaeological discovery with regard
Archaeologists have found two shipwrecks (沉船) deep in the South China Sea, which serve as a witness to
The No. 1 shipwreck
This is one of the most important archaeological
The new Sanxingdui Museum in Guanghan, Sichuan province, began trial operations on Thursday.
With a total area of about 54,400 square meters and an
The new museum has a display area of 22,000 square meters, with more than 1,500 sets of cultural relics (遗迹)
The newly
Visitors to
The site is one of China’s most important archaeological
7 . That dinosaurs ate the mammals (哺乳动物) that ran beneath their feet is not in doubt. Now an extraordinary fossil newly described in Scientific Reports, unearthed by a team led by Gang Han at Hainan Vocational University of Science and Technology in China, shows that sometimes the tables were turned.
The fossil -dated to about 125 million years ago, during the Cretaceous period-was formed when a flow of boiling volcanic mud swallowed two animals seemingly locked in a life-and-death fight. The one on top is a mammal. This animal is a herbivorous species closely related to the Triceratops (三角恐龙). Animal interactions such as this are exceptionally cam e in the fossil record.
One possibility is that the mammal was eating something already dead, other than hunting live prey. These days it is uncommon for small mammals to attack much larger animals. But it is not unheard of. And Dr. Han and his colleagues point out that those mammals which eat dead bodies typically leave tooth marks all over the bones of the animals. The dinosaur’s remains show no such marks. There is also a chance the fossil could be a fake. More and more convincing fake s have emerged, as this one did -though Dr. Han and his colleagues argue that the complexly connected nature of the skeletons (骨骼) makes that unlikely, too.
Assuming it is genuine, the discovery serves as a reminder that not all dinosaurs were enormous during the Cretaceous and not all mammals were tiny. From nose to tail, the dinosaur is just 1.2 meters long. The mammal is a bit under half a meter in length. Despite being half the size, the mammal has one paw firmly wrapped around one of its prey’s limbs, and another pulling on its jaw. It is biting down on the dinosaur’s chest, and has ripped off two of its ribs. Before they were interrupted, it seems that the mammal was winning.
1. Which idiom is closest in meaning to underlined part “the tables were turned” in paragraph 1?A.The fittest survives. | B.The hunters become hunted. |
C.Fortune always favors the brave. | D.The truth will always come to light. |
A.To prove the fossil was fake. | B.To show the forming of the fossil. |
C.To illustrate the process of hunting. | D.To suggest the dinosaur was hunted alive. |
A.The size of the fossil. | B.The absence of fake fossils. |
C.The complexity of the skeletons. | D.The consistency of the opinions. |
A.It offers a cause. | B.It highlights a solution. |
C.It justifies the conclusion. | D.It provides a new discovery. |
Chinese archaeologists have unearthed a big bronze beast. It’s one of the most highly
The bronze animal is the
The bronze beast can be seen as a cultural relic nonexistent before not just in China,
A Stone Age bird sculpture
Described
10 . Prehistoric people may have used firelight to create the illusion (错觉) of movement in their art. An analysis of 50 carved stones dug out in France suggests that when the stones were placed near a fire, the light made the carved animals seem to move, researchers report April 20 in PLOS ONE. These stones, or “plaquettes” ware found in the 1860s in a rock-shelter called Montastruc, and are carved with animals such as horses and deer. The site was used by Magdalenian people, hunter-gatherers who inhabited (居住) the area between 23, 000 and14, 000 years ago.
The researchers analyzed heat damage on the stones, which indicated them being directly exposed to high temperatures for a long period, and created 3-D models of the stones. Those models were imported to a virtual reality software where they were placed next to a virtual hearth (壁炉炉床) so that the areas of heat damage were closest to the flames, mimicking (模拟) how the stones might have been placed in real life. The researchers then observed the visual effects of the virtual reality light.
It was surprising to see how dynamic the art was and “how changed your experience of the art was by a simple thing, just putting it close to a fire,” says Andy Needham, an archaeologist at the University of York in England. The work suggests that the artists purposely carved along the outline of the rock to influence viewers to see meaningful movement through the random pattern of firelight, he says.
The finding adds to archaeologists’ understandings of the relationship between early people’s artwork and fire. Another recent study found that Stone Age humans created “hidden” art in dark caves which could be lighted and made visible only with the help of the right lighting.
1. What happened when the 50 prehistoric stones were placed near a fire?A.The animals carved on them seemed to move. |
B.The fire took on the shapes of different animals. |
C.The animal drawings on them became much clearer. |
D.Animals nearby such as horses and deer were attracted. |
A.The reason for the heat damage on the stones. |
B.The function of the software in the research. |
C.The way in which the research was conducted. |
D.The conclusion that was drawn by the researchers. |
A.Hardworking. | B.Ambitious. | C.Dependable. | D.Creative. |
A.Ancient People Must Have Used Fire in Various Ways. |
B.Different Ways of Using Fire Have Been Discovered Now. |
C.Prehistoric People May Have Used Fire to Create Movable Art. |
D.Ancient Artists Were More Innovative than We Normally Though. |