3 After watching and videotaping the children for several hundred hours.The psychologist and her assistants made many important observations.For example,they saw that the hearing children made many different,varied motions with their hands.However, there appeared to be no pattern to these motions.The deaf babies also made many different movements with their hands,but these movements were more consistent and deliberate. The deaf babies seemed to make the same hand movements over and over again.During the four-month period,the deaf babies'hand motions started to resemble some of the basic hand-shapes used in ASL.The children also seemed to prefer certain hand-shapes. 4 Hearing infants start first with simple syllable babbling (dadada),then put more syllables together to sound like real sentences and questions.Apparently,deaf babies follow this same pattern too.First,they repeat simple hand-shapes.Next,they form some simple hand signs (words)and use these movements together to resemble ASL sentences. 5 Linguists-people who study language-believe that our ability for language is innate.In other words,humans are born with the capacity for language.It does not matter if we are physically able to speak or not.Language can be expressed in many different ways -for instance,by speech or by sign.Dr.Petitto believes this theory and wants to prove it. She plans to study hearing children who have one deaf parent and one hearing parent.Dr. Petitto wants to see what happens when babies have the opportunity to learn both sign language and speech.Does the human brain prefer speech?Some of these studies of hearing babies who have one deaf parent and one hearing parent show that the babies babble equally with their hands and their voices.They also produce their first words,both spoken and signed,at about the same time. 6 The capacity for language is uniquely human.More studies in the future may prove that the sign system of the deaf is the physical equivalent of speech.If so,the old theory that only the spoken word is language will have to be changed.The whole concept of human communication will have a very new and different meaning. Questions 31-35 are based on Passage 4. 31.What is babbling? 32.At what age do most infants babble? 33.What is the full name for ASL? 34.What theory does Dr.Petitto believe about language learning? 35.Who does Dr.Petitto want to study to prove the theory? 9543 After watching and videotaping the children for several hundred hours. The psychologist and her assistants made many important observations. For example , they saw that the hearing children made many different , varied motions with their hands. However, there appeared to be no pattern to these motions. The deaf babies also made many different movements with their hands, but these movements were more consistent and deliberate. The deaf babies seemed to make the same hand movements over and over again. During the four-month period , the deaf babies' hand motions started to resemble some of the basic hand-shapes used in ASL. The children also seemed to prefer certain hand-shapes. 4 Hearing infants start first with simple syllable babbling (dadada) , then put more syllables together to sound like real sentences and questions. Apparently , deaf babies follow this same pattern too. First , they repeat simple hand-shapes. Next , they form some simple hand signs (words) and use these movements together to resemble ASL sentences. 5 Linguists - people who study language - believe that our ability for language is innate. In other words, humans are born with the capacity for language. It does not matter if we are physically able 'to speak or not. Language can be expressed in many different ways - for instance , by speech or by sign. Dr. Petitto believes this theory and wants to prove it. She plans to study hearing children who have one deaf parent and one hearing parent. Dr. Petitto wants to see what happens when babies have the opportunity to learn both sign language and speech. Does the human brain prefer speech? Some of these studies of hearing babies who have one deaf parent and one hearing parent show that the babies babble equally with their hands and their voices. They also produce their first words, both spoken and signed , at about the same time. 6 The capacity for language is uniquely human. More studies in the future may prove that the sign system of the deaf is the physical equivalent of speech. If so , the old theory that only the spoken word is language will have to be changed. The whole concept of human communication will have a very new and different meaning. Questions 31-35 are based on Passage 4. 31. What is babbling? 32. At what age do most infants babble? 33. What is the full name for ASL? 34. What theory does Dr. Petitto believe about language learning? 35. Who does Dr. Petitto want to study to prove the theory? 954