6. Of the three speech acts a speaker might be performing simultaneously when speaking， linguists are most interested in the ______ act because it is identical with the speaker’s intention. ( )
A. performative B. constative
C. illocutionary D. perlocutionary
7. Middle English began with the arrival of the Norman French invaders in England under William the Conqueror in 1066. For about a century and a half after the Norman Conquest， Middle English was heavily influenced by French，most noticeably in large and central areas of ______. ( )
A. vocabulary B. pronunciation
C. morphology D. syntax
8. Depending on the demands of a particular communicative situation，bilingual or multilingual speakers may change between language varieties in the middle of speech or even in the middle of a sentence. Such a situation is known as ______. ( )
A. bilingualism B. multilingualism
C. diglossia D. code-switching
9. Language disorder resulting from a damage to ______ area in the brain reveals word-finding difficulties and problems with syntax. ( )
A. Wernicke’s B. Broca’s
C. Gage’s D. Genie’s
10. Studies on the effects of formal instruction on second language acquisition show that formal instruction may help learners perform some types of tasks EXCEPT ______. ( )
A. planned speech B. writing
C. career-oriented exam D. casual and spontaneous conversation
