[填空题]Hay has found that both ______ and social factors combine to put twins at a disadvantage.

[填空题]Hay has found that both ______ and social factors combine to put twins at a disadvantage.

[填空题]From his findings, Hay has established some flexible guidelines for parents of identical twins. One suggestion is for parents to ______ so that contact with other children will ______ accelerate language development.

[简答题]It was found that laughter has similar effects to physical exercise.

[填空题]Hay found that parents of twins tend to favor the first-born baby, giving that twin more time and attention. Even when they start school, the first-born twin does better than the second-born.

[填空题]Hay found that twins do better in singing than the single babies.

[单项选择]What has she found
A. Her bag.
B. Her key.
C. Her kite.

[填空题]Introduction Linguistics has both practical and philosophical motivations. So both, the first and second editions of this text were directed toward students of [1] _______. many [1]________. This third edition continues and further develops this approach. We have aimed to dispel a number of myths about language and to discuss the various aspects of language from both an [2]_____and cur- [2] _______. rent point of view. Part one is “The Nature of Human Language. “Then we discuss speech sounds or [3]_______and includes a passage on machines [3] _______. that “talk” and “understand”. On phonology we demonstrate how sounds form [4]______. Because [4] _______. of this, written forms of language are very late in the history of human lan- guage. Then we discuss other [5] _______ aspects of language how words [5] _______. are formed; what words, phrases, and sentences mean; and how words are