In informal speech, people often omit sentence subjects because they are commonly understood. What are the omitted subjects in the following two sentences？ Why do people know that these are the correct subjects？ a. Hope you like everything here. b. Just imagine what has just happened here.
______are language varieties appropriate for use in particular speech situations.
A．Slang
B．Address terms
C．Registers
D．Education varieties
How does the top-down approach differ from the bottom-up approach in language processing？
A．Bottom-up processing is more effective than top-down processing in speech synthesis.
B．Bottom-up processing utilizes all information one has in speech perception.
C．Top-down processing uses one" s existing knowledge and the incoming speech signal.
D．Top-down processing is more efficient than bottom-up processing in speech comprehension.
The utterance meaning of the sentence varies with the context in which it is uttered.
此题为判断题（对，错)。
Describe the process of language perception, comprehension and production.
Structural metaphor means that human experiences with physical objects provide the basis for ways of viewing events, activities, emotions, ideas, etc. , as entities and substances.
此题为判断题（对，错)。
