1 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

A Stone Age bird sculpture     1     (cover) in China could be a “missing link” in our understanding of prehistoric art.     2     (date) back almost 13,500 years, the sculpture is now the oldest known example of three-dimensional art in East Asia.

Described     3     being in “an exceptional state of preservation,” the sculpture was found at an archeological site in Lingjing, Henan Province. It was hand-carved from burned animal bone. Researchers say the sculpture depicts (刻画) a bird on a base, pointing to deliberate marks     4     the creature’s eyes and bill (嘴) would be. It is believed that the bird’s oversized tail was made     5     (prevent) the sculpture from leaning forward when     6     (lay) on a surface. This discovery identifies a(n)     7     (origin) artistic tradition and pushes back by more than 8,500 years the representation of birds in Chinese art. The sculpture differs     8     (technology) and stylistically from other sculptures found in Western Europe and Siberia, and it could be the missing link tracing the origin of Chinese statues back to the early part of the Stone Age. Li Zhanyang, who led     9     study, has contributed to other archeological findings in Lingjing, including various ancient     10     (tool) and two skulls belonging to an extinct species of early humans.

2 . A new study provides the earliest known evidence of amputation — the medical term for cutting off a part of a person’s body. Around 31,000 years ago, a young adult had his left foot and part of his left leg removed in what is modern-day Indonesia, the study suggests.

Scientists say the ancient surgery was performed when the person was a child — and that the individual went on to live for years. It suggests that humans were carrying out medical operations much earlier than scientists had thought.

Tim Maloney, the study’s lead researcher, said that researchers were exploring a cave in Borneo, a rainforest area known for ancient rock art, when they came across the person’s burial.

Although much of the skeleton(骨骼)remained, it was missing its left foot and the lower part of its left leg, Maloney explained. After examining the remains, the researchers concluded the foot bones were not missing from the burial or lost in an accident. Instead, the bones had been carefully removed. The remaining leg bone showed a clean cut that healed over, Maloney said. There were no signs of infection, which would be expected if the child had gotten its leg bitten off by a creature like a crocodile. And there were also no signs of a crushing fracture(粉碎性骨折),which would have been expected if the leg had been cut off in an accident.

The child appears to have lived for around six to nine more years after losing the limb, eventually dying from unknown causes as a young adult, researchers said.

The evidence suggests that the ancient people knew enough about medicine to perform the surgery without fatal blood loss or infection. Researchers do not know what kind of tool was used to perform the surgery, or how infection was prevented. But they believe that a sharp stone tool may have made the cut, and some of the plant life in the area could have been used for medical treatment.

“The discovery of this early surgery rewrites the history of human medical knowledge and developments,”Maloney said at a press conference.

1. What can we know about the ancient surgery?

A．It was discovered by accident.

B．It was later than scientists had thought.

C．Researchers have completely understood it.

D．The young adult died soon after receiving surgery.

2. What does the fourth paragraph mainly talk about?

A．The child’s miserable experience.

B．The reason for the child’s injury.

C．The evidence of amputation.

D．The significance of the discovery.

3. What does the underlined word“limb”in paragraph 5 refer to?

A．Living environment.

B．Family and relatives.

C．One of the unknown causes.

D．Left foot and part of his left leg.

4. What’s Maloney’s attitude towards the discovery of the ancient surgery?

A．Doubtful.	B．Positive.
C．Puzzled.	D．Critical.