【单选题】【消耗次数：1】
对固定酸进行缓冲的最主要系统是
①
碳酸氢盐缓冲系统
②
磷酸盐缓冲系统
③
血浆蛋白缓冲系统
④
还原血红蛋白缓冲系统
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【单选题】
What role does a teacher play in the following activity? T: do you have any hobbies? S: yes, I like singing and dancing. T: Uhm, and...? S: I also collect coins. T: Oh, really, how many...have you already...collected?
①
Controller
②
Assessor
③
Organizer
④
Prompter
【单选题】
Which of the following is the advantage of whole class work?
①
It is an ideal way to show materials and do presentations together
②
It allows students to work together rather than under teacher’s guidance.
③
There is always a great chance of different opinions and contributions to the work
④
It is less stressful.
【单选题】
Which of the following is the time when students work in groups?
①
When all the students are under the control of the teacher
②
When students work in pairs on an exercise or a task
③
When students work in small group
④
When students are expected to work on their own at their own speed.
【单选题】
What role does a teacher play in the following activity? The teacher gives students 2 minutes to skim a text, and when time is up, he asks students to stop and answer some questions.
①
Controller
②
Assessor
③
Organizer
④
Prompter
【单选题】
What are the possible roles of a teacher?
①
Controller, assessor
②
Organizer, prompter
③
Participant, resource-provider
④
All of the above.
【单选题】
Which of the following is the time when students study by themselves?
①
When all the students are under the control of the teacher
②
When students work in pairs on an exercise or a task
③
When students work in small groups
④
When students are expected to work on their own at their own speed.
【单选题】
What role does a teacher play in the following activity? When a student has made a sentence with borrow, “I borrowed a paper to write a letter”, the teacher says, “Well, we don’t say a paper, we say a piece of paper.”
①
Controller
②
Assessor
③
Organizer
④
Prompter.
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Why do novice teacher often have problems giving clear instructions?
①
Their language proficiency is low
②
They are fresh from the university
③
Their instructions are too short
④
They are not able to target their instructions to the level of the learners.
【单选题】
When is appropriate for the teacher to give classroom instructions to students?
①
Give directions to tasks or activities, checking comprehension, giving feedback
②
Providing explanations to a concept or language structure, drawing attention
③
Setting requirements, checking comprehension, assigning homework
④
All of the above.
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What are not good rules to follow for making instructions effective?
①
Use simple instructions and make them suit the comprehension level of the students
②
Use the mother tongue only when it is necessary
③
Use body language to assist understanding
④
Not model the task or activity before letting students move into groups or pairs .