Lying under the skull, the human brain contains an average of ten billion nerve cells called ______.(　　　)

Describe the distinctive features of Black English in its syntactic system by using examples.

In some dialects of English, the word “ask” is pronounced [?ks], and children’s speech shows a number of cases of sound movement, for example, “aminal” for “animal”. Now explain sound movement by giving examples. State the difference between sound movement and sound addition by examples.

Broca’s area

euphemism

expressives

behaviourism as a semantic view

stylistic synonyms

major lexical category

free morpheme

synchronic study