In the middle of the night, a baby chimpanzee is having nightmares. Chantal, his caretaker, tries to calm him back to sleep. She works at the Tchimpounga Chimpanzee Rehabilitation Center, in the Republic of the Congo, in Africa.

The chimpanzee’s name is George. He was taken from his mother by illegal hunters. Eventually, he was rescued and taken to the sanctuary(保护区), where Chantal helped him make friends with the other chimpanzees. “We rescue chimpanzees from horrible conditions and socialize them,” Goodall said. “They need to learn chimpanzee behavior. If one loses its mother when it’s tiny, it’s like a human child losing its mother.”

Chimpanzees are victims of deforestation and the illegal wildlife trade. Their population, numbering in the millions a century ago, could be down to 172,000. This makes the work of the Tchimpounga sanctuary even more important. “An ecosystem is made up of a complex mix of plants and animals,” Goodall says. “They all have a role to play. ”

At its opening, in 1992, Tchimpounga had space for 60 chimpanzees. It has since expanded to the size of a hundred football fields, and houses around 150 chimpanzees. Many live on forested islands in the Kouilou River. In that environment, the chimpanzees are prepared for a possible return to the wild.

The chimpanzees aren’t the only ones getting an education. The sanctuary broadcasts documentaries on local television, and works with law enforcement and government to reduce illegal trade in animals. These efforts are paying off, Tchimpounga head vet Rebeca Atencia said, “We have effectively stopped the arrival of orphan(孤儿) chimpanzees to Tchimpounga. We’ve received only one orphan chimpanzee over the past three years. This is a great achievement that shows us that our efforts are working.”

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1.What does the underlined word “nightmares” mean?

A Night suits.

B Night habits.

C Frightening dreams.

D Staying up at night.

解析：选C。C词义猜测题。根据第一段第一句的“In the middle of the night”以及后面的“ calm him back to sleep”可推断，这只黑猩猩幼崽正在做噩梦，即nightmares表示“噩梦，可怕的梦”。故选C。

2.What do chimpanzees in the Tchimpounga sanctuary have in common?

A They were taken by illegal hunters.

B They usually need more new friends.

C They used to be in very bad conditions.

D They lost their mothers when quite young.

解析：选C。C推理判断题。根据第二段中的“We rescue chimpanzees from horrible conditions and socialize them”可知，奇蓬加黑猩猩康复中心营救那些处于非常恶劣的环境中的黑猩猩，由此可知，在奇蓬加保护区的这些黑猩猩都曾处于糟糕的环境中。故选C。

3.What can be inferred about the Tchimpounga sanctuary?

A It initially focuses on the study of the ecosystems.

B It prepares the chimpanzees for their return to the wild.

C It aims to control the number of the chimpanzees.

D It intends to build more sanctuaries in Africa.

解析：选B。B细节理解题。结合第三、四段内容，尤其是第四段最后一句可知，奇蓬加保护区为这些黑猩猩重返野外做好准备。故选B。

4.What does Rebeca Atencia think of their effort?

A Demanding.

B Worthwhile.

C Fruitless.

D Controversial.

解析：选B。B推理判断题。根据最后一段中的“These efforts are paying off”以及“This is a great achievement that shows us that our efforts are working.”可知，奇蓬加黑猩猩康复中心所做的努力正在起作用，因此Rebeca Atencia认为他们的努力是值得的。故选B。