Sentence The sentence is the highest rank of grammatical unit. Based on one or more than one clause. the sentence is also the basic linguistic unit of connected discourse, it can stand alone and perform a function in social communication. Thus. a sentence can be defined as a grammatical unit that can stand by itself and perform a communicative function 1) Full and minor sentences完全句和不完全句 A full sentence is a sentence with an expressed subject and predicate This kind of sentence is mostly used in formal speech and writing A minor sentence is only a sentence fragment which in specific contexts and situations can stand by itself and perform a communicative function. Minor sentences are extensively used in informational discourse When did he arrive Last night No smoking HelpSentence • The sentence is the highest rank of grammatical unit. Based on one or more than one clause, the sentence is also the basic linguistic unit of connected discourse; it can stand alone and perform a function in social communication. Thus, a sentence can be defined as a grammatical unit that can stand by itself and perform a communicative function. • 1) Full and minor sentences 完全句和不完全句 • A full sentence is a sentence with an expressed subject and predicate. This kind of sentence is mostly used in formal speech and writing. • A minor sentence is only a sentence fragment which in specific contexts and situations can stand by itself and perform a communicative function. Minor sentences are extensively used in informational discourses. • -----When did he arrive? -----Last night. • No smoking! • Help!