日课｜英文短文English Passages for Beginners 19：Lungs
英语短文是学习英语的非常好的材料。大量地朗读和背诵英文短文，能帮英语学习者快速积累词汇量，提升语感。接下来，Jessie老师会准备一系列的英文短文供大家学习、背诵。我们先从初级水平的短文开始，这一系列的短文既适合小学生，也适合初级英语学习者。
Lungs
What allows you to breathe in fresh air? What allows you to breathe out old air? What allows you to talk? The lungs!
You have two lungs. They take up most of your chest. Your ribs protect your lungs from getting hurt. You can feel your lungs if you put one hand on your chest and breathe deeply.
Your lungs grow big when you breathe in air. Then oxygen from the air goes into your blood. Your body needs oxygen in order to live.
When your body has used up the oxygen it needs, it must get rid of old air. This air is warm from being inside your body. Your lungs breathe it out and make room for new air.
Your lungs help you talk, too. The more air you breathe in, the louder and longer you can talk in one breath. Lungs are important for breathing, talking, and even singing!
是什么能让你呼吸到新鲜空气？是什么能让你呼出旧空气？是什么能让你说话？肺！
你有两个肺。它们占据了你胸部的大部分。你的肋骨保护你的肺不受伤害。如果你把一只手放在胸前深呼吸，你可以感觉到你的肺。
当你吸入空气时，你的肺会变大。然后空气中的氧气进入你的血液。你的身体需要氧气才能生存。
当你的身体已经耗尽了它所需要的氧气，它必须排掉旧空气。这种空气在你体内是温暖的。你的肺把它呼出，为新空气腾出空间。
你的肺也能帮助你说话。你吸入的空气越多，一口气能说话的声音就越大，时间也就越长。肺对呼吸、说话甚至唱歌都很重要！
allow 使能够；促使
breathe in 吸入
breathe out 呼出
lung 肺
take up 占据；占用
chest 胸部；胸膛
rib 肋骨
protect 保护；防护
oxygen 氧气
blood 血；血液
use up 用完；耗尽
get rid of 扔掉；丢弃；摆脱
make room for 给…让出空地方
important 重要的；有重大影响的