单选题 Speech-the act of uttering sounds to convey(传达) meaning--is a kind of human action. Like any other constantly repeated action, speaking has to be learned, but once it is learned, it becomes a generally unconscious and apparently automatic process.
As far as we can determine, human beings don"t need to be forced to speak. Most babies seem to possess a sort of instinctive drive to produce speech like noises. How to speak and what to say are another matter altogether. These actions are learned from the particular society into which the baby was born; so that, like all conduct that is learned from a society--from the people around us--speech is a patterned activity. The sounds that a child can make are more varied and numerous than the sounds that any particular language utilizes. However, a child born into a society with a pattern of language is encouraged to make a small selection of sounds and to make these few sounds over and over again until it is natural for him to make these sounds and no others.

单选题 Speech is_______.

单选题 The instinctive drive of most babies is ______.

单选题 What are the sounds a child is able to make like?

单选题 How can a child be considered to have learned to speak?

单选题 According to the passage ,which of the following statements is true?