跟读练习: Study Identifies Problem in Polio Vaccine - 通过YouTube学习英语口语
B1
From VOA Learning English, this is the Health Report.
25 句
如果句子过短或过长，请点击 Edit 进行调整。
1
From VOA Learning English, this is the Health Report.
2
Is a new deadly polio virus hiding somewhere in the world?
3
Some scientists believe this might be true.
4
Polio causes paralysis, leaving victims unable to walk or move parts of their bodies.
5
The disease does not usually kill.
6
But polio was deadly when the virus appeared in the Republic of the Congo in 2010.
7
Nearly half of the 445 people who were infected died.
8
New research shows there might have been a weak spot in the polio vaccine.
9
Researchers say mutations or changes in the polio virus were responsible for that unusually deadly outbreak.
10
The researchers say new kinds of polio may come into existence as the world gets closer to stopping the virus.
11
Felix Drexler is an expert on viruses at the University of Bonn in Germany.
12
He says those infected in the Congo were different from other polio patients in an important way.
13
He says about half of them remembered taking three doses of the live vaccine.
14
He says they should not have gotten sick as a result.
15
Mr. Drexler and other researchers studied that polio virus.
16
They found it had some never-before-seen mutations.
17
These changes prevented disease-fighting antibodies from attacking the virus.
18
The Republic of the Congo had been polio-free before the 2010 outbreak.
19
It ended after four nationwide vaccination campaigns.
20
Experts say the worldwide end of polio is near.
21
There have been fewer than 150 cases this year.
22
Walt Orenstein is with the Emory Vaccine Center in the United States.
23
He says health workers need to kill the virus in the last few areas where it remains.
24
Then he says talk about mutant strains or stronger vaccines would be unnecessary.
25
For VOA Learning English, I'm Alex Villareal.
下载应用
AI 为你说出的每个句子打分
TRENDING
热门
为什么要通过这个视频练习口语？
观看和学习这段关于脊髓灰质炎疫苗问题的视频，可以帮助你在实际语境中练习英语口语。通过模仿视频中的说话者，不仅可以锻炼你的发音，还能提高你的语言流利度。与真实对话相似的内容，能够让你在雅思口语练习中更加自信。特别是在讨论公共卫生和科学话题时，能够掌握相关的词汇与表达方式，会使你的英语更加接地气。
语法与表达在语境中的运用
在视频中，演讲者使用了多个重要的语法结构，我们可以总结出以下几点：
- 被动语态：例如“病毒出现于……”，这种句构强调动作的接受者，适合用于描述科学研究结果。
- 条件句：“如果健康工作者能够……，那么讨论突变菌株就没有必要了。”条件句帮助我们表达假设和未来的可能性，这是在讨论预测时常用的结构。
- 现在完成时：“研究显示……”这种时态用于强调目前的研究成果，对了解当前的研究状况及其影响至关重要。
掌握这些语法结构将有助于你的英语表达更加准确，从而在英语口语练习中更显得游刃有余。
常见的发音陷阱
在这段视频中，一些单词和短语可能会让学习者遇到发音困难。例如：
- polio：注意这个词的发音，许多学习者可能会发错音，导致沟通失误。
- mutations：此词中的“tu”音可能容易混淆，正确的发音需要注意口型以及声调。
- antibodies：该词的重音位置需要特别注意，容易使初学者在快速对话中丧失清晰度。
通过反复模仿和练习这些词汇的发音，可以有效提高你的发音准确性，促进你的英语发音练习。结合英语影子跟读的方式，反复进行练习，会更加有效。只需专注于，每个单词的发音、语调与重音，最终可达到提高英语发音的效果。
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。