跟读练习: Vol 2 - test 3 - section 4 - 通过视频学习英语口语

You will hear part of a lecture about the study on Australian crocodiles.

First, You have some time to look at questions 31. to 40.

Now listen carefully and answer questions 31 .0 to 40.

Around 10 years ago, Australia Zoo, the University of Queensland and Queensland Parks and Wildlife,

undertook a project to monitor the movements and behavior of the crocodiles in Lakefield National Park.

The aim of the study was to provide better information on how adult crocodiles there Interact within a river system.

enabling people to have better decisions on how to manage crocodile populations.

This project can lead the world in crocodile management, Because of the use of satellite.

which enables scientists to stably receive accurate information being sent back to them on the computer.

Even though the crocodiles can travel very long distances, scientists can still know where they are and study their habits.

The study is going to help scientists gain further knowledge

on crocodile behaviour which can help make informed decisions on the management plans for crocodiles,

not only in Australia, but around the world.

Crocodile tracking isn't a new idea in Australia.

Crocodile studies have been previously conducted by radio.

A miniature electronic device was implanted under the skin of these animals, and they were released back into the river.

These tags enabled scientists to track the movements of these particular crocodiles over the next 10 years. Of course.

There are some unexpected challenges.

The data transmitted from each receiver is recorded by some devices employed in the receiving stations.

However, Some devices, are too old.

that they always lose signals due to a variety of reasons.

so they can't track those animals which they have been studying for months.

In order to study the crocodiles, They must first be captured.

so that the device can be put on them.

But this is a very difficult task.

because they are alert and afraid of being followed by humans.

so it might take the team several hours to capture one.

The tracking device has signal transmitters inside and it's waterproof.

It is attached to the head of the crocodile.

so the crocodile cannot remove the device with its feet or tail.

The research has begun to reveal the movements of crocodiles.

Data showed that crocodiles tend to be more active at night time.

The GPS sometimes shows that in some areas the crocodiles are overpopulated.

So scientists at the park have to use a helicopter to

relocate the crocodiles in order to control their population in the area.

A crocodile would be taken many kilometers away from its original place.

However, Scientists found that the relocation methods were ineffective.

because the relocated crocodiles will return to their original location following the most direct route within one week.

The tracking data shows that the crocodiles swim right back to where they came from when moved.

Crocodiles sometimes travel hundreds of kilometers from Indonesia to Australia in order to reproduce.

It is interesting to see that they can always find their way and they will not get lost in the ocean.

Scientists realized The crocodiles are able to navigate.

This is an important ability for them when they have to migrate for very long distances.

We may wonder if human beings can learn from the crocodiles and find our way without using technology.

However, through lots of research and experiments, Scientists conclude, that crocodiles can tell directions by using their senses to the sun.

so that they know where they're going.

This is an ability which human beings don't possess.

Another finding is that like the migration of birds who can travel thousands and thousands of kilometers, Crocodiles have the same system to help them travel.

The research is still going on in Northern Australia.

Scientists are working hard to gather more information about this amazing creature.

That is the end of section 4.

You now have half a minute to check your answers.

That is the end of the listening test.

In the IELTS test, you would now have 10 minutes to transfer your answers to your answer sheet.

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这个视频适合谁？

如果你正在通过看YouTube学英语提升听力和口语，尤其是想练习学术讲座类内容，这个关于澳大利亚鳄鱼研究的视频再合适不过。它适合有一定基础、想挑战长段落理解和英语口语练习的学习者。视频中的科学描述、实验过程等内容，能帮你熟悉正式表达，为影子跟读（shadowspeak）提供丰富素材。

值得积累的词汇与表达

monitor the movements：监测行动。如视频中研究人员用卫星监测鳄鱼动向。
implant under the skin：植入皮下。描述追踪设备的安装方式，实用的科技类表达。
relocate：重新安置。用于描述鳄鱼的迁移管理，在环境类话题中常用。
navigate：导航。指鳄鱼依靠感官辨别方向，可延伸用于描述人类或动物的定位能力。

如何练好发音？

视频中演讲者的发音清晰，语速适中，适合shadow speak练习。注意以下几点：一是连读，如“enable people to”中“enable”与“people”的弱读连读；二是重音，如“informative”“migrate”等词的重音位置；三是语调，学术讲座中陈述事实时语调平稳，提到有趣发现（如鳄鱼导航能力）时略有上升。建议使用shadowing site的逐句跟读功能，模仿节奏和停顿，提升口语流畅度。

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	being sent · was implanted · is recorded
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	have been · has begun

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。

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如何练好发音？

视频中的语法

什么是跟读法？