responder

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5步学习法

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第1步:含义

What is the definition of 'responder'?
A. A tool used for measuring distances.
B. An animal that observes things around it.
C. A person who replies or reacts to a stimulus or situation.
D. Someone who cannot communicate effectively.
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第2步:用法

Choose the sentence that uses 'responder' correctly.
A. The responder flew over the mountains swiftly.
B. She was the first responder to the emergency call.
C. The responder is an excellent musician.
D. He had a responder at the fitness competition.
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第3步:例句

Which word is most similar to 'responder'?
A. observer
B. listener
C. replier
D. creator
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第4步:练习

What is the opposite of 'responder'?
A. provider
B. instructor
C. ignorer
D. advocate
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第5步:掌握

Can you think of a real-life context where someone might be a responder?
A. She decided to ignore the emergency alert.
B. The person who answered the emergency call was trained for such situations.
C. He practiced responding to questions in class.
D. The team celebrated after they finished the project.