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【单选题】
有文法G=({S},{a},{S→SaS,S→e},S),该文法是____。

LL(1)文法
二义性文法
算符优先文法
SLR(1)文法
【单选题】
A: Why didnt you come to my party last night? B: Im sorry, [填空]. I had to visit my grandmother at the hospital.

I did it
I still remember it
I will come
I couldnt make it
【判断题】
What?has she doing?

正确
错误
【单选题】
What are two categories of vocabulary?

Receptive vocabulary and productive vocabulary
innate vocabulary and learned vocabulary
familiar vocabulary and unfamiliar vocabulary
new vocabulary and old vocabulary.
【单选题】
What are the ways of practicing stress?

Use gestures
Use the voice
Use the blackboard
All of the above.
【单选题】
What are the possible roles of a teacher?

Controller, assessor
Organizer, prompter
Participant, resource-provider
All of the above.
【单选题】
What is the function of optional activities?

Backups in case the lesson goes too fast and there are a few minutes left
Prepared for good students
Prepared for bad students
Used for emergency.
【单选题】
What is fluency competence concerned with?

Appropriate use of the language in social context
Ability to link units of speech together with facility and without strain or inappropriate slowness or undue hesitation
Strategies one employs when there is communication breakdown due to lack of resources
Knowledge of language itself, its form and meaning.
【单选题】
What is linguistic competence concerned with?

Appropriate use of the language in social context
Ability to create coherent written text or conversation and the ability to understand them
Strategies one employs when there is communication breakdown due to lack of resources
Knowledge of language itself, its form and meaning.
【单选题】
What is discourse competence concerned with?

Appropriate use of the language in social context
Ability to create coherent written text or conversation and the ability to understand them
Strategies one employs when there is communication breakdown due to lack of resources
Knowledge of language itself, its form and meaning.