tense up
不及物短语动词，表示（身体或情绪）变得紧张
She tensed up when she heard the loud noise.
她听到巨响时紧张起来。
变得紧张或拉紧
增加紧张感；变得紧张、不安或焦虑；使或变的紧张(tense的过去式与过去分词形式)
to become stretched or tense or taut
使或变的紧张(tense的过去式与过去分词形式)
v become stretched or tense or taut；v increase the tension on；v become tense, nervous, or uneasy；v cause to be tense and uneasy or nervous or anxious；s having inflections to indicate tense
一般现在时
She often tenses up before exams.
她在考试前常常会紧张。
一般过去时
He tensed his muscles before lifting the weights.
他在举重之前绷紧了肌肉。
现在进行时
I am tensing my body to prepare for the jump.
我正在绷紧身体准备跳跃。
动词形式规则变化
He tensed up as he waited for the test results.
他在等待测试结果时紧张了起来。
用法提示：动词过去式表示变得紧张
Her shoulders tensed when she heard the loud noise.
她听到巨响时肩膀绷紧了。
用法提示：动词过去式表示肌肉变得紧绷
The cat tensed its muscles before leaping.
猫在跳跃前绷紧了肌肉。
用法提示：动词过去式表示使某物变得紧绷
不及物短语动词，表示（身体或情绪）变得紧张
She tensed up when she heard the loud noise.
她听到巨响时紧张起来。
及物用法，使某部位紧张或绷紧
He tensed his muscles before lifting the weight.
他在举重前绷紧了肌肉。
反身用法，使自己做好心理或身体准备
She tensed herself for the bad news.
她绷紧神经准备迎接坏消息。
grammar · medium
易错句子I felt tensed before the interview.
正确表达I felt tense before the interview.
“tensed”是动词tense的过去式或过去分词，不能用作形容词描述状态；表示紧张的状态应使用形容词“tense”。
grammar · medium
易错句子He became tensed when the teacher called his name.
正确表达He became tense when the teacher called his name.
在系动词（如become, feel, get）后应跟形容词，而非动词的过去分词。“tensed”是动词形式，而“tense”是形容词。
tensed是动词过去式，表示‘变得紧张’的动作；tense是形容词，描述状态‘紧张的’。
tensed强调肌肉或神经的绷紧状态；nervous更侧重内心的不安和担忧。
tensed指短暂的紧张状态；stressed强调长期压力导致的紧张。
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