跟读练习: Blood Flow Through the Heart (Made Easy in 5 Minutes!) - 通过视频学习英语口语
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Alright you guys, welcome back to another video lesson.
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My name is Eddie Watson and this is ICU Advantage, where the confidence to succeed begins here, making critical care topics easy to understand.
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Now, if you don't want to miss out on any future critical care lessons that I do, make sure and subscribe to the channel down below.
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Make sure you hit that bell icon though and select all notifications so you never miss out on a new lesson.
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Alright, let's begin.
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In this lesson, let's take a quick look at the flow of blood through the heart.
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And the heart is really the powerhouse of the circulatory system.
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It's continuously moving blood throughout the entire body, providing oxygenated blood and nutrients,
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while also carrying away waste and returning that deoxygenated blood back to the lungs.
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the flow of blood through the cardiac system is vital to being able to understand the problems
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and conditions that can come up along the way at various points.
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We do though need to start off with some basic foundations before we begin.
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So when I'm talking about veins, I'm talking about blood vessels that are carrying blood towards the heart, and then arteries are then blood vessels carrying blood away from the heart.
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And then for the sake of our drawing, blue is going to be used to signify deoxygenated blood and red is going to be our oxygenated blood.
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So with that out of the way, let's go ahead and take a look inside the heart so we can see some of the structures here.
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There are four main chambers, two upper chambers called atria and two lower chambers called ventricles.
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And we have one of each on each side of the heart.
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We have the right atrium, the right ventricle, the left atrium, and the left ventricle.
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And the atria help to fully load the ventricle before it then ejects blood away from the heart.
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The heart can also be divided up into the right and left sides.
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The right side is going to be responsible for deoxygenated blood going right to the lungs, and then the left side is responsible for oxygenated blood that has just left the lungs.
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There's also four heart valves that you need to know, one at the exit of each of the four chambers.
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Exiting from the right atrium, we have the tricuspid valve.
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Then exiting from the right ventricle, we have the pulmonic valve.
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And then exiting the left atrium, we have the mitral valve.
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This is something that also is known as the bicuspid valve.
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And then finally exiting the left ventricle, we have the aortic valve.
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Each of these valves act as a one-way valve to prevent backflow of blood in the system.
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And normal valves have three leaflets, with the exception of the mitral valve, which only has two, hence the name bicuspid.
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And then finally there are the blood vessels, which bring blood to, as well as carry blood away from the heart.
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The inferior vena cava, which has blood originating from the trunk, visceral organs, and the lower body.
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And the superior vena cava, which has blood originating from the head and upper body.
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Which these two together bring most of the deoxygenated blood from the body back to the heart
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and empty into the right atrium.
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Next, we have the pulmonary artery, which is going to carry the deoxygenated blood away from the heart and then to the lungs to be oxygenated.
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From here, we have both the right and left pulmonary veins, which are bringing the oxygenated blood back to the heart and emptying into the left atrium.
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And then finally, the aortic carries the oxygenated blood away from the heart to the rest of the body.
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Alright, now that we've covered the structures, let's actually see how the blood flows through the system.
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We start with the deoxygenated blood returning to the heart via the inferior vena cava and the superior vena cava.
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This blood empties into the right atrium.
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The right atrium then contracts the blood through the tricuspid valve into the right ventricle.
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The right ventricle then contracts, ejecting the blood through the pulmonic valve into the pulmonary artery.
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Now remember this is an artery because the blood is going away from the heart, but it's also blue here because this is still deoxygenated blood.
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The pulmonary artery branches and carries blood to the left and the right lungs to receive oxygen and release carbon dioxide.
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After the blood leaves the lungs, the oxygenated blood is going to return to the heart via the pulmonary veins.
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Again, remember that these are veins because they're carrying blood towards the heart, but they're red here because this is now oxygenated blood.
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The pulmonary veins empty the blood into the left atrium.
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The left atrium contracts the blood through the mitral valve into the left ventricle.
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The left ventricle then contracts, ejecting that blood through the aortic valve, into the aorta, and onto the rest of the body.
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So one more time let's just talk through that again.
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We start with the deoxygenated blood returning to the heart via the inferior vena cava and the superior vena cava.
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This blood empties into the right atrium.
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The right atrium then contracts the blood through the tricuspid valve into the right ventricle.
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The right ventricle then contracts ejecting that blood through the pulmonic valve into the pulmonary artery.
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The blood then travels to the lungs and then returns back from the lungs via the pulmonary veins, which then empty into the left atrium.
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The left atrium contracts that blood through the mitral valve into the left ventricle.
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The left ventricle then contracts, ejecting that blood through the aortic valve to the aorta and onto the rest of the body.
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And remembering the order of the heart valves can be difficult.
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The mnemonic TPMA can help.
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Toilet, paper, my asset tricuspid pulmonic mitral aortic.
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Alright that's all I got that's the blood flow through the heart.
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If you guys like this lesson please leave a comment
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or a like down below really goes a long way to help support this channel as well as
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if you know somebody else who might find this useful make sure and share it with them as well.
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and a special shout out to our awesome Patreon and YouTube members that are out there.
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By showing your support for this channel you guys get additional content
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that you can't get from just the normal YouTube channel here alone.
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Make sure you guys stay tuned for the next lesson that I'm going to release.
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In the meantime, check out a couple really awesome videos I'm going to link to right here.
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As always, thank you guys so much for watching.
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Have a great day.
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推荐视频
本课的词汇与口语要点
这节 C1 级别的口语课以视频“Blood Flow Through the Heart”为素材。 视频中反复出现的词有:blood, valve, atrium, ventricle, deoxygenated。 这段视频共有 72 个句子、1150 个单词可供跟读。 讲话部分时长为 6:03。 说话人语速较快,每分钟约 190 个词,会出现较多连读和弱读。 只有 80% 的单词属于英语最常用的 3,000 词,词汇难度较高。
视频中的重点词汇
视频中最难的 15 个单词,附发音和释义:
| 单词 | 发音 | 释义 |
|---|---|---|
| atrium 名词 | /ˈeɪ.tɹi.əm/ | 天井 |
| ventricle 名词 | /ˈvɛn.tɹɪk.əl/ | 心室 |
| pulmonary 形容词 | /ˈpʌl.məˌnɛ.ɹi/ | 肺的 |
| artery 名词 | /ˈɑɹ.təɹ.i/ | 動脈 /动脉 |
| vein 名词 | /veɪn/ | 靜脈 /静脉 |
| eject 动词 | /ɪˈd͡ʒɛkt/ | 逐出, 驅逐 /驱逐 |
| tricuspid 形容词 | /tɹaɪˈkʌspɪd/ | 三尖 |
| inferior 形容词 | /ɪnˈfɪɹ.i.ɚ/ | 低劣, 低賤 /低贱 |
| aorta 名词 | /eɪˈɔɹtə/ | 主動脈 /主动脉, 大動脈 /大动脉 |
| subscribe 动词 | /səbˈskɹaɪb/ | 簽署 /签署 |
| leaflet 名词 | /ˈliːflɪt/ | 傳單 /传单 |
| mnemonic 名词 | /nəˈmɑnɪk/ | 記憶術 /记忆术, 助憶 /助忆 |
| nutrient 名词 | /ˈnuː.tɹi.ənt/ | 養分 /养分, 營養素 /营养素 |
| dioxide 名词 | /daɪˈɑksaɪd/ | 二氧化物 |
| notification 名词 | /ˌnoʊtɪfɪˈkeɪʃn̩/ | 通知 |
视频中出现的短语动词
| 单词 | 发音 | 释义 |
|---|---|---|
| check out 动词 | 退房 | |
| come up 动词 | 上來 /上来 | |
| go ahead 动词 | /ˌɡoʊ əˈhɛd/ | 請便 /请便 |
视频中的语法
说话人最常用的结构,并附上视频中的原话:
| 结构 | 视频中的用法 |
|---|---|
| 被动语态 be + 过去分词 — 强调发生了什么,而不是谁做的 | be divided · is known · be oxygenated |
| 定语从句 who / which + 从句 — 补充说明人或事物 | cava, which has · artery, which is · veins, which are |
| 现在完成时 have/has + 过去分词 — 过去发生但与现在仍有关联的事 | has just left · we've covered |
需要注意的发音
说话人用了 10 次缩略和弱读形式,例如 I'm, they're, can't。请按听到的简短形式来说。
- “sh” 和 “zh” 音: notification /ˌnoʊtɪfɪˈkeɪʃn̩/, shout /ʃaʊt/
- 长单词——注意重音位置: deoxygenate /diˈɒksɪdʒɪneɪt/, oxygenate /ˈɒksɪdʒəneɪt/, pulmonary /ˈpʌl.məˌnɛ.ɹi/, inferior /ɪnˈfɪɹ.i.ɚ/, originate /əˈɹɪd͡ʒɪneɪt/
中文母语者容易读错的音:
- /v/ — 不要读成 /w/,上齿轻触下唇: ventricle /ˈvɛn.tɹɪk.əl/, vein /veɪn/, visceral /ˈvɪsəɹəl/
- 词尾辅音 — 要读清楚,后面不要加元音: deoxygenate /diˈɒksɪdʒɪneɪt/, oxygenate /ˈɒksɪdʒəneɪt/, aortic /eɪˈɔɹ.tɪk/, eject /ɪˈd͡ʒɛkt/, tricuspid /tɹaɪˈkʌspɪd/
- /r/ 和 /l/ 的区别: ventricle /ˈvɛn.tɹɪk.əl/, pulmonary /ˈpʌl.məˌnɛ.ɹi/, mitral /ˈmaɪtɹəl/, circulatory /ˈsɝkjələˌtɔɹi/, visceral /ˈvɪsəɹəl/
如何用这段视频练习
- 先完整听一遍视频,不要开口,记下不认识的单词。
- 先用 0.75 倍速逐句跟读,熟练之后再回到正常速度。
- 录下自己的声音并与原声对比,特别注意 atrium, ventricle, pulmonary 这类单词。
什么是跟读法?
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧,最初开发用于专业口译员的培训,并由多语言者Alexander Arguelles博士普及。这个方法简单而强大:您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同,跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性,语调,节奏,连读,听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。













