[pʌls][pʌls]
  • n. 脉搏;脉冲;[植]豆类
  • v. 搏动;跳动
  • 记忆方法

    词源记忆法
    词根pel,puls来源于拉丁语pellere(=to drive),过去分词为pulsus—英文根字典,意为to drive,这二个词根它们属于一对同源异形根,前者是此词的不定式词干,后者是此词的动名词词干。这对词根在英语中构词很有规律前者加上前缀构成动词,后者则构成相应的名词和形容词。它们的变形为peal。同义词根有来自拉丁语的ig/ag/act和flig。此外,来自拉丁语的意为to lead的duc/duct(du),men(mean)以及来自希腊语的agog也有近似的含义。同源词1.dispel(远远地驱逐或者分别撵dis(=away)+pel(=drive)vt.驱走;驱散My father always told me that a glass of cold water dispels nightmares.我爸爸经常跟我说一杯凉水可以赶走噩梦。2.impel(在里面驱赶im<;in(=in)+pel(=drive)vt.sb+to do驱使;迫使;催促;推进impulse n推动(力);(内心的)冲动impulsion n冲动;推进impeller n叶轮impulsive adj.冲动的;由冲动造成的He has billions,but fear impels him to earn more money.他虽已有数十亿的财产,但恐惧驱使他去赚取更多的钱。3.expulsion(向外撵、驱赶ex(=out)+puls(=drive)n驱逐,逐出;排除;除名,开除expel v赶出,驱逐Disobedience of the rules will result in immediate expulsion from school.违反校规的结果就是立即被学校开除。
      noun(名词)
      1. [ C ] 脉搏
      2. 测(某人的)脉搏
      3. [ C ] (声波或光波的)脉冲
      4. [ C or U ] (食品搅拌机的)脉冲搅拌
      5. 豆类植物的种子;荚果;豆子
      verb(动词)
      1. [ I ] (以规律且强有力的节拍)跳动,搏动,振动
      2. [ I or T ] (用食品搅拌机)脉冲搅拌

    双解例句

    noun(名词)
    1. [ C ] 脉搏

      The child's pulse was strong/weak.

      那个孩子的脉搏很有力/虚弱。

      Exercise increases your pulse rate.

      锻炼能加快你的脉搏。

    2. 测(某人的)脉搏
    3. [ C ] (声波或光波的)脉冲

      The data, normally transmitted electronically, can be changed into pulses of light.

      这一数据通常是电子传送的,现在可被改为光波脉冲。

    4. [ C or U ] (食品搅拌机的)脉冲搅拌

      Give the mixture a pulse or two until it is broken down.

      对混合物进行一两次脉冲搅拌,直到搅碎。

      Set the food processor to pulse, adding olive oil and herbs.

      将食物搅拌机设置为脉冲,加入橄榄油和香料。

    5. 豆类植物的种子;荚果;豆子

      Pulses include peas, lentils, and chickpeas.

      豆类包括豌豆、小扁豆和鹰嘴豆。

    verb(动词)
    1. [ I ] (以规律且强有力的节拍)跳动,搏动,振动

      I could feel the blood pulsing through my veins.

      我能感觉到血液在我的血管里翻腾。

    2. [ I or T ] (用食品搅拌机)脉冲搅拌

      Place the prawns in a food processor and pulse to a coarse paste.

      将大虾放入食品搅拌机中,搅拌成粗糊状。

    小知识

    The word pulse has many shades of meaning, but most of them involve something characterized by short, rhythmic bursts. If you’re angry, the muscles in your jaw might pulse — meaning they contract quickly in short bursts.

    Pulse can be a noun that describes the rhythmic pumping of blood through your veins and arteries. You’ve probably had a nurse take your pulse as a way to measure your heart rate. Pulse can refer to other things that have a rhythmic beat, like the pulse of dance music or a pulse of flashing light. The verb describes something that throbs, literally or figuratively. Your blood will pulse through your veins, or a busy city may pulse with life.

    常用短语

    1. pulse width

      脉冲宽度;脉冲持续时间

    2. pulse generator

      脉冲发生器

    3. pulse width modulation

      [计]脉冲调制;脉宽灯;脉冲间隔灯

    4. pulse wave

      脉搏波;脉波

    5. pulse compression

      [计]脉冲压缩

    6. electromagnetic pulse

      电磁脉冲

    7. pressure pulse

      压力脉冲;气压脉动

    8. pulse duration

      脉冲持续时间

    9. pulse frequency

      脉冲频率;脉率;脉搏率;脉冲重复频率

    10. optical pulse

      光脉冲,光学脉冲

    11. pulse energy

      脉冲能量,脉波能

    12. single pulse

      单脉冲;单冲量

    13. pulse pressure

      [生理]脉压

    14. pulse rate

      [医]脉搏率;脉冲重复频率

    15. pulse modulation

      脉冲调制;脉冲灯

    16. narrow pulse

      窄脉冲

    17. pulse transformer

      脉冲变压器

    18. electric pulse

      电脉冲

    19. pulse shape

      脉冲波形;脉冲形式

    20. electrical pulse

      n. 电脉冲

    单词用法

    近似单词
    pause n.暂停;中止
    重要短语
    pulse width脉冲宽度;脉冲持续时间
    pulse generator脉冲发生器
    pulse width modulation[计]脉冲调制;脉宽灯;脉冲间隔灯
    pulse wave脉搏波;脉波

    词根词缀

    词根: puls

    =drive/push,表示”驱动,推”

    • adj.

      compulsory 必须做的,强制性的,[课程]必修的

      com共同+puls驱动,推+ory……的→共同推的→强制性的

      impulsive 易冲动的,感情用事的

      impulse[v.冲动]+ive……的→adj.易冲动的,感情用事的

      repulsive 令人厌恶的,驱逐的

      repulse[n.&v.驱逐,击退,厌恶]+ive……的→adj.令人厌恶的,驱逐的

    • n.

      compulsion 压力,难以抗拒的冲动

      com共同+puls驱动,推+ion表名词→共同推→强制

      expulsion 驱逐,开除

      ex出+puls驱动,推+ion表名词→推出去→驱逐

      propulsion 推进,推进力

      pro向前+puls驱动,推+ion表名词→向前推

      pulse 脉搏,脉冲

      puls驱动,推+e→n.脉搏,脉冲

    • n.&v.

      push 推, 推动

      push=puls驱动,推→n.&v.推, 推动

      repulse 驱逐,击退,厌恶

      re回+puls驱动,推+e→推回去→击退,驱逐

    • v.

      impulse 冲动

      im内+pulse跳动→内在推动→冲动

      pulsate 有规律的振动,[脉]搏动

      pulse[n.脉搏,脉冲]+ate表动词→v.有规律的振动,[脉]搏动

    同根词

    词根:pulse

    adj.

    pulsating脉动的;脉冲的;搏动的

    pulsing脉冲的

    pulsed脉冲的;跳动的;脉冲调制的

    pulseless无生气的;无脉动的

    n.

    pulsing脉动

    v.

    pulsating颤动;有规律地跳动(pulsate的现在分词)

    pulsing使跳动;搏动(pulse的ing形式)

    pulsed使跳动;使摆动(pulse的过去分词)

    vi.

    pulsate搏动;悸动;有规律地跳动