跟读练习: Mindset For IELTS 1 track 68 - 通过视频学习英语口语

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Track 68 Good morning, everyone.

In today's lecture, I want to talk to you about a very unpopular animal here in Britain.

In fact, you could say that it's one of our least loved animals.

It's called the American bullfrog, and yes, it does in fact come from America, the east of America to be exact.

And it was brought to Britain in the early 19th century, so you could say that it's been here for quite a long time.

It wasn't brought here on purpose.

It actually arrived in a big container of aquatic plants.

In other words, it was accidentally introduced into Britain.

Now, I'll tell you a little about its appearance.

The American bullfrog is a very large and ugly species of frog.

And when I say it's large, I mean large.

Interestingly, female American bullfrogs are usually much larger than the males.

In fact, they can weigh up to 750 grams, whereas the males only go up to about 600 grams.

Take a look at its head.

It's really broad and flat, isn't it?

And you can see its mouth just here.

That's quite large too.

Now, both the male and the female American bullfrogs have green

or brown bodies and have dark spots on the top but there's one important difference between them.

The male's throat is yellow but the female has a white one instead.

And the other difference is their eardrums, here just behind their eyes.

Those of the male are much larger than the female's.

So let's move on to why we so dislike the American bullfrog.

Well, this is because it has threatened our own native species of frogs.

Firstly, it breeds very quickly indeed.

For example, female bullfrogs can lay up to 25 ,000 eggs every single season.

And secondly, the American bullfrog is very greedy.

In fact, they eat just about anything they can put into their mouths.

As well as other frogs, they eat insects, fish, and have even been known to eat birds and snakes.

So, in other words, they eat the food sources of our own native species.

Thirdly, they carry a disease that is dangerous to other frogs.

And finally, they don't just damage our natural world, they cause financial damage too.

Around £100 ,000 has been spent monitoring the American bullfrog in the wild.

So, as scientists, we can learn a lesson from this about the dangers of introducing any living species into a new environment.

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本课的词汇与口语要点

这节口语课以视频“Mindset For IELTS 1 track 68”为素材。视频中反复出现的词有：bullfrog, frog, species, male, female。这段视频共有 34 个句子、405 个单词可供跟读。讲话部分时长为 2:49。说话人语速平稳，每分钟约 144 个词，很适合跟读。 85% 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 15 个值得学习的单词，附发音和释义：

单词	发音	释义
introduce 动词	/ˌɪntɹəˈdus/	介紹 /介绍, 紹介 /绍介
gram 名词	/ˈɡɹæm/	克, 公克
lesson 名词	/ˈlɛs.ən/	課業 /课业, -課 /-课
egg 名词	/ɛɡ/	卵, 卵子
ugly 形容词	/ˈʌɡli/	難看 /难看, 醜 /丑
whereas	/(h)wɛɹˈæz/	然而
arrive 动词	/əˈɹaɪv/	到達 /到达, 到
monitor 名词	/ˈmɑ.nɪ.tɚ/	顯示器 /显示器
throat 名词	/ˈθɹoʊt/	嗓子, 喉嚨 /喉咙
snake 名词	/sneɪk/	шә, чончун
accidentally 副词	/ˌæk.sɪˈdɛnt(ə)li/	偶然
scientist 名词	/ˈsaɪəntəst/	科學家 /科学家
lecture 名词	/ˈlɛk.t͡ʃə/	演講 /演讲
breed 动词	/ˈbɹiːd/	配種 /配种
container 名词	/kənˈteɪ.nəɹ/	容器

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
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	it's been · has threatened · have even been known
被动语态 be + 过去分词 — 强调发生了什么，而不是谁做的	was brought · wasn't brought · been known

需要注意的发音

说话人用了 4 次缩略和弱读形式，例如 don't, I'll, isn't。请按听到的简短形式来说。

“th” 音: throat /ˈθɹoʊt/, threaten /ˈθɹɛt.n̩/, thirdly /ˈθɚdli/

中文母语者容易读错的音：

词尾辅音 — 要读清楚，后面不要加元音: introduce /ˌɪntɹəˈdus/, egg /ɛɡ/, whereas /(h)wɛɹˈæz/, arrive /əˈɹaɪv/, throat /ˈθɹoʊt/
/r/ 和 /l/ 的区别: firstly /ˈfɜɹstli/, bullfrog /ˈbʊlfɹɑɡ/
/æ/ — 嘴张大，不要读成 /e/: gram /ˈɡɹæm/, whereas /(h)wɛɹˈæz/, accidentally /ˌæk.sɪˈdɛnt(ə)li/

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 introduce, gram, lesson 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。

影子跟读法: 阅读完整分步指南 →

跟读练习: Mindset For IELTS 1 track 68 - 通过视频学习英语口语

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