Washoe is a young chimpanzee(黑猩猩). She is no 21 chimpanzee, though. Scientists are doing a research 22 her. They want to see how civilized(驯化)she can 23 . Already she does many things a human being can do.
For example, she has been learning how to exchange 24 with people. The scientists are teaching her 25 language. When she wants to be picked 26 , Washoe points up with one finger. She rubs her teeth with her finger 27 she wants to brush her teeth. This is done after every meal.
Washoe has also been 28 to think out and find answers to problems. Once she was put in a 29 with food hanging from the ceiling. It was too high to 30 . After she considered the 31 , she got a tall box to stand 32 . The food was still too high to be reached. Washoe found a 33 pole. Then she climbed onto the 34 , grasped the pole, and 35 down the food with the pole.
Washoe 36 like a human, too. The scientists keep her in a fully furnished(家具齐全的)house. After a hard 37 in the laboratory, she goes home. 38 she plays with her toys. She 39 enjoys watching television before going to bed.
Scientists hope to 40 more about people by studying our closest, relative(亲属)—chimpanzee.