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托福精聽薈萃之每日老托聽力講解 第75期

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【填空答案】

  1. subject: adj. likely to be affected by something, especially something unpleasant 易受…(不快事物)影響的;易患…的[+to]
  2. cold-blooded: adj. a cold-blooded animal, such as a snake, has a body temperature that changes with the temperature of the air or ground around it (動(dòng)物)冷血的(如蛇)
  3. protoplasm: n.[U]technical the colorless substance that forms the cells of plants and animals 【術(shù)語】原生質(zhì),原漿
  4. approximately: adv. (of quantities) imprecise but fairly close to correct 近似地,大約
  5. weightless: adj. having no weight, especially when you are floating in space or water(尤指在空中或水中)失重的;沒有重量的
  6. limitation: n. [C usually plural]a limit on how good someone or something can be, what they are able to do etc(某人或物)局限,不足之處
  7. incompressible: adj. impossible to compress; resisting compression 不能壓縮的
  8. shove: v. to push someone or something, in a rough or careless way, using your hands or shoulders(用手或肩)推,推擠,推撞
  9. wiggle: v. to move with small movements from side to side or up and down, or make something move like this(動(dòng)作較小地)擺動(dòng);扭動(dòng)
  10. propel: v. to move, drive, or push something forward 推動(dòng);推進(jìn);驅(qū)動(dòng)
  11. literally: adv. used to emphasize that something is actually true 的確,確實(shí)
  12. angular: adj. having sharp and definite corners 有尖角的
  13. peculiarity: n. [C]something that is a feature of only one particular place, person, or situation(僅為某人、某地方或某情況所獨(dú)有的)特點(diǎn);獨(dú)特性

【聽力原文】

To us, the environment in which fish dwell often seems cold, dark, and mysterious. But there are advantages to living in water, and they have played an important role in making fish what they are. One is that water isn't subject to sudden temperature changes. Therefore it makes an excellent habitat for a cold-blooded animal. Another advantage is the water's ability to easily support body weight. Protoplasm has approximately the same density as water, so a fish in water is almost weightless. This "weightlessness" in turn means two things: One, a fish can get along with a light weight and simple bone structure, and two, limitations to a fish's size are practically removed. Yet there is one basic difficulty to living in water—the fact that it's incompressible. For a fish to move through water, it must actually shove it aside. Most can do this by wiggling back and forth in snakelike motion. The fish pushes water aside by the forward motion of its head, and with the curve of its body and its flexible tail. Next, the water flows back along the fish's narrowing sides, closing in at the tail, and helping the fish propel itself forward. The fact that water is incompressible has literally shaped the development of fish. A flat and angular shape can be moved through water only with difficulty. And for this reason, fish have a basic shape that is beautifully adapted to deal with this peculiarity.

重點(diǎn)單詞   查看全部解釋    
definite ['definit]

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adj. 明確的,確切的,有把握的

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environment [in'vaiərənmənt]

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n. 環(huán)境,外界

 
impossible [im'pɔsəbl]

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adj. 不可能的,做不到的
adj.

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angular ['æŋgjulə]

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adj. 有角的,消瘦的,有尖角的

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compress [kəm'pres]

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vt. 壓縮,壓榨
n. [醫(yī)]敷布

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unpleasant [ʌn'pleznt]

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adj. 使人不愉快的,討厭的

 
careless ['kɛəlis]

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adj. 粗心的,疏忽的
n. 不關(guān)心的,粗心

 
temperature ['tempritʃə(r)]

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n. 溫度,氣溫,體溫,發(fā)燒

 
peculiarity [pi.kju:li'æriti]

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n. 特質(zhì),特性,怪癖,古怪

 
density ['densiti]

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n. 密集,密度,透明度

 
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