跟读练习: A1C Test for Measuring Blood Sugar Levels - 通过视频学习英语口语
选择练习模式
每种模式都会打开全屏练习室。
46 句
如果句子过短或过长，请点击 Edit 进行调整。
1
An A1c test is a blood test that can be used to estimate the average amount of glucose, or sugar, in your blood over the past three months.
2
Other names for this test are HbA1c, glycated hemoglobin, and glycosylated hemoglobin.
3
This test is often used to screen for or manage diabetes and prediabetes, conditions that can happen when your blood sugar is too high.
4
In order to understand how the test works, it's important to know about red blood cells and how your blood sugar affects them.
5
Most of the cells in your blood are called red blood cells.
6
They are made in your bone marrow, which is the tissue in the center of your bones.
7
From there, they travel to your lungs, where they pick up oxygen from the air you breathe in.
8
This happens in tiny air sacs in your lungs, called alveoli.
9
Here, oxygen attaches to proteins inside your red blood cells, called hemoglobin.
10
Your red blood cells then deliver the oxygen to tissues throughout your body.
11
After about three months, red blood cells wear out.
12
As the worn-out cells pass through your liver and spleen, other types of blood cells,
13
called macrophages, destroy them and remove them from your blood.
14
Glucose in your blood can affect your red blood cells.
15
After you eat, your body breaks down food into glucose and releases it into your blood.
16
Your tissue cells take the glucose out of your blood and use it as their main source of energy.
17
It's normal for some of the glucose in your blood to stick to the hemoglobin in your red blood cells.
18
This process is called glycosylation.
19
If your tissue cells aren't able to use the glucose, it can build up in the blood.
20
This is called hyperglycemia.
21
If you have high blood glucose, more of the hemoglobin in your red blood cells will have glucose stuck to it.
22
An A1c test shows the percentage of red blood cells that have glucose attached to them.
23
If your A1c numbers are higher, it means that your red blood cells were exposed to higher levels of blood glucose in the previous three months.
24
The test shows results from this time period because glucose can only stick to hemoglobin while your red blood cells are alive,
25
and they live for about three months.
26
Higher than normal average blood glucose can mean you have diabetes.
27
Your health care practitioner may recommend you get an A1c test if you are over 45 years old,
28
are under 45 and have one or more risk factors for diabetes, or you had diabetes during pregnancy called gestational diabetes.
29
During an A1c test, a healthcare professional, called a phlebotomist, will take a sample of blood from a vein in your arm
30
or from one of your fingers using a small needle.
31
At the lab, your blood sample will be tested to measure the amount of red blood cells
32
that have glucose sticking to the hemoglobin in them.
33
Your A1c numbers, which show the percentage of glucose-attached red blood cells, can be used to estimate your average blood glucose during the past three months.
34
Your A1c test result may include a chart that shows estimated average blood glucose range based on A1c numbers.
35
A normal A1c result means your blood sugar level is in the non-diabetic range.
36
Or an A1c result may be considered normal for you, even if your blood sugar is slightly outside the non-diabetic range.
37
This may happen because of your age or medical conditions you have, such as diabetes.
38
An abnormally high A1c test result means your blood sugar has been too high over the past three months.
39
You may be diagnosed with prediabetes or diabetes if you haven't already been told you have it.
40
Or, if you're living with diabetes, an abnormal result means your blood sugar is not well controlled.
41
If your A1C result stays high, your healthcare practitioner will talk to you about how to manage your blood sugar.
42
People with diabetes will need to have an A1C test at least twice a year.
43
People with prediabetes will need to be tested every year or two, or as often as your healthcare practitioner recommends.
44
If your A1C is normal but you had gestational diabetes, or you have risk factors for diabetes, then you will need the test every three years.
45
To find out more about the A1C test, talk to your health care practitioner.
46
Thank you.
📺 同频道
✨ 推荐视频
C11
51 句
What Your A1C Numbers Really Mean | Pharmacist Explains
Daily ConversationWorking Adults
C11
380 句
A man hiked in the woods. Every brain cell got cooked.
Daily ConversationUniversity StudentsWorking Adults
C1383
14 句
What Happens When You Eat Too Much Sugar? According To A Sugar Expert
Daily ConversationUniversity StudentsWorking Adults
C11
167 句
BLOOD TYPES explained in 9 Minutes
Daily ConversationUniversity StudentsWorking Adults
C12
189 句
Creatine: is there truth behind the hype?
Daily ConversationUniversity StudentsWorking Adults
C156 句
ST Elevation and Depression on an EKG Rhythm Strip
Daily ConversationUniversity Students
B23
24 句
Vitamin D Testing Challenges
American AccentDaily ConversationUniversity StudentsWorking Adults
C12
177 句
The REAL Reason Diabetes Is So Dangerous
Daily ConversationUniversity StudentsWorking Adults
C14
32 句
UltraSnap® Surface ATP Test
Daily ConversationWorking Adults
B25
16 句
Behind the scenes: Medical Laboratory Scientist
Daily ConversationUniversity Students
B21
176 句
Are We Measuring Life the Wrong Way? | B2 English Shadowing
Business EnglishDaily ConversationUniversity Students
B21
78 句
Day in the Life as a Doctor
Daily ConversationUniversity StudentsWorking Adults
本课的词汇与口语要点
这节 C1 级别的口语课以视频“A1C Test for Measuring Blood Sugar Levels”为素材。 视频中反复出现的词有：blood, cells, glucose, test, diabetes。 这段视频共有 46 个句子、758 个单词可供跟读。 讲话部分时长为 5:12。 说话人语速平稳，每分钟约 146 个词，很适合跟读。 82% 的单词属于英语最常用的 3,000 词，其余的词建议在练习前先学一下。
视频中的重点词汇
视频中最难的 13 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| hemoglobin 名词 | /ˌhimoʊˈɡloʊbɪn/ | 血紅蛋白 /血红蛋白 |
| prediabetes 名词 | 前驅糖尿病 /前驱糖尿病, 糖尿病前期 | |
| attach 动词 | /əˈtæt͡ʃ/ | 附上, 附 |
| alveolus 名词 | /ælˈvi.əl.əs/ | 肺泡 |
| diagnose 动词 | /ˈdaɪ.əɡˌnoʊs/ | 診斷 /诊断 |
| hyperglycemia 名词 | 高血糖 | |
| macrophage 名词 | /ˈmækɹɔʊː.feɪd͡ʒ/ | 巨噬細胞 /巨噬细胞 |
| spleen 名词 | /spliːn/ | 脾臟 /脾脏 |
| marrow 名词 | /ˈmæɹəʊ/ | 髓, 骨髓 |
| abnormal 形容词 | /ˌæbˈnɔɹ.ml̩/ | 異常 /异常 |
| vein 名词 | /veɪn/ | 靜脈 /静脉 |
| needle 名词 | /ˈniː.dəl/ | җын, 針 /针 |
| expose 动词 | /ɪkˈspoʊz/ | 揭露, 暴露 |
视频中出现的短语动词
| 单词 | 释义 |
|---|---|
| break down 动词 | 壞了 /坏了, 出故障 |
| find out 动词 | 找出, 查明 |
| pick up 动词 | 拾取, 撿 /捡 |
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 | are called · are made · is called |
| 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 been · haven't already been told |
需要注意的发音
说话人用了 3 次缩略和弱读形式，例如 aren't, haven't, you're。请按听到的简短形式来说。
- “sh” 和 “zh” 音: practitioner /pɹækˈtɪʃənəɹ/, glycosylation /ˌɡlaɪ.koʊ.səˈleɪ.ʃən/
- 长单词——注意重音位置: hemoglobin /ˌhimoʊˈɡloʊbɪn/, practitioner /pɹækˈtɪʃənəɹ/, abnormally /æbˈnɔɹ.mə.li/, alveolus /ælˈvi.əl.əs/, glycosylation /ˌɡlaɪ.koʊ.səˈleɪ.ʃən/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: alveolus /ælˈvi.əl.əs/, vein /veɪn/
- 词尾辅音 — 要读清楚，后面不要加元音: glucose /ˈɡluː.kəʊz/, attach /əˈtæt͡ʃ/, diabetic /daɪəˈbɛtɪk/, alveolus /ælˈvi.əl.əs/, diagnose /ˈdaɪ.əɡˌnoʊs/
- /r/ 和 /l/ 的区别: abnormally /æbˈnɔɹ.mə.li/, abnormal /ˌæbˈnɔɹ.ml̩/
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。
- 用正常速度逐句跟读，每句重复到你的节奏与说话人一致为止。
- 录下自己的声音并与原声对比，特别注意 hemoglobin, prediabetes, attach 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。