英语完形填空？
In the 1960s and 1970s, two teachers at the University of Nevada, Beatrix and R. Allen Gardener, 点此填空 American Sign Language (ASL) to young chimpanzees (猩猩). They 点此填空 their first chimpanzee Washoe. By age five Washoe knew and used more than 160 signs. With these words, she communicated with humans. The study of chimpanzee communication has 点此填空 information useful in 点此填空 how humans developed. It has also been useful in understanding the method by which children learn language. 展开
How do animals “speak”? Animals communicate with each other in different ways. Some insects (昆虫) such as ants use smell to tell other ants, “There’s food over there.” Bees communicate by sight. They do a kind of dance to tell others bees the 点此填空（location） of a supply of flowers. Snakes can also communicate. When they are in 点此填空（danger） , they can signal to other animals to stay away. They do this by 点此填空 （turning） over and displaying the colors on their body. The colors 点此填空（warn against） others that the snake’s bite can kill. Many mammals (哺乳动物) such as elephants and whales 点此填空 （convey/send） information by sound.
In the 1960s and 1970s, two teachers at the University of Nevada, Beatrix and R. Allen Gardener, 点此填空（taught） American Sign Language (ASL) to young chimpanzees (猩猩). They 点此填空（trained） their first chimpanzee Washoe. By age five Washoe knew and used more than 160 signs. With these words, she communicated with humans. The study of chimpanzee communication has 点此填空（offered） information useful in 点此填空（showing） how humans developed. It has also been useful in understanding the method by which children learn language.
