跟讀練習: Cambridge 15 listening (Test-1) (Part-4) - 通過影片學習英語口語

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Part 4.

You will hear a student giving a presentation about a type of tree known as the eucalyptus.

which is common in Australia.

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

Now listen carefully and answer questions 31 to 40.

Today, I'm going to talk about the eucalyptus tree.

This is a very common tree here in Australia, where it's also sometimes called the gum tree.

First, I'm going to talk about why it's important.

Then I'm going to describe some problems it faces at present.

Right, well, the eucalyptus tree is an important tree for lots of reasons.

For example, it gives shelter to creatures like birds and bats.

And these and other species also depend on it for food, particularly the nectar from its flowers.

So, it supports biodiversity.

It's useful to us humans too because we can kill germs with a disinfectant made from oil extracted from eucalyptus leaves.

The eucalyptus grows all over Australia, and the trees can live for up to 400 years.

So, it's alarming that all across the country, numbers of eucalyptus are falling because the trees are dying off prematurely.

So, what are the reasons for this?

One possible reason is disease.

As far back as the 1970s, the trees started getting a disease called mundula yellows.

The tree's leaves would gradually turn yellow, then the tree would die.

It wasn't until 2004 that they found the cause of the problem was lime,

or calcium hydroxide, to give it its proper chemical name, which was being used in the construction of roads.

The lime was being washed away into the ground and affecting the roots of the eucalyptus trees nearby.

What it was doing was preventing the trees from sucking up the iron they needed for healthy growth.

When this was injected back into the affected trees, they immediately recovered.

But this problem only affected a relatively small number of trees.

By 2000, huge numbers of eucalyptus were dying along Australia's east coast of a disease known as Bell Minor -associated dieback.

The bell miner is a bird and the disease seems to be common where there are high populations of bell miners.

Again, it's the leaves of the trees that are affected.

What happens is that insects settle on the leaves and eat their way round them, destroying them as they go,

and at the same time they secrete a solution which has sugar in it.

Thank you.

The bell miner birds really like this solution, and in order to get as much as possible,

they keep away other creatures that might try to get it.

So these birds and insects flourish at the expense of other species,

and eventually so much damage is done to the leaves that the tree dies.

But experts say that trees can start looking sick before any sign of bell minor -associated dieback.

So it looks as if the problem might have another explanation.

One possibility is that it's to do with the huge bushfires that we have in Australia.

A theory proposed over 40 years ago by ecologist William Jackson is

that the frequency of bushfires in a particular region affects the type of vegetation that grows there.

If there are very frequent bushfires in a region, this encourages grass to grow afterwards,

while if the bushfires are rather less frequent, this results in the growth of eucalyptus forests.

So, why is this?

Why do fairly frequent bushfires actually support the growth of eucalyptus?

Well, one reason is that the fire stops the growth of other species which would consume water needed by eucalyptus trees. And there's another reason.

If these other quick -growing species of bushes and plants are allowed to proliferate,

they harm the eucalyptus in another way by affecting the composition of the soil and removing nutrients from it.

So some bushfires are actually essential for the eucalyptus to survive,

as long as they are not too frequent. In fact, there's evidence

that Australia's indigenous people practised regular burning of bushland for thousands of years before the arrival of the Europeans.

But since Europeans arrived on the continent, the number of bushfires has been strictly controlled.

Now, scientists believe that this reduced frequency of bushfires to low levels has led to what's known as 'dry' rainforest,

which seems an odd name as usually we associate tropical rainforest with wet conditions.

And what's special about this type of rainforest?

Well?

Unlike tropical rainforest, which is a rich ecosystem, this type of ecosystem is usually a simple one.

It has very thick, dense vegetation but not much variety of species.

The vegetation provides lots of shade, so one species that does find it ideal is the bell -miner bird,

which builds its nests in the undergrowth there.

But again, that's not helpful for the eucalyptus tree.

That is the end of part four.

You now have one minute to check your answers to part four.

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FOR YOU

為什麼要用這個影片練習口語？

使用這個影片進行口語練習，不僅可以提高你的聽說能力，還能幫助你瞭解澳大利亞常見的尤加利樹。這種樹在當地文化和生態中佔有重要地位。通過模仿演講者的發音和語調，你可以提升自己的 雅思口語練習 技能，增強對自然環境相關話題的表達能力。在練習過程中，你會接觸到具體的詞彙和專業術語，這將提升你的綜合語言理解能力。與此同時，觀看 看YouTube學英語 的影片，能夠讓學習過程更加生動有趣，同時也能讓你感受到真實的語言使用情境。

語法與表達結構分析

被動語態：例如，“樹的葉子逐漸變黃，然後樹就會死去。”這裡的被動結構強調了動作的結果，而不關注施動者。
現在進行時：如“我今天要談論尤加利樹。”這個時態用來表達當前的動作或計劃，能使句子更具生動性。
條件句：例如，“如果火災發生得比較少，這會導致尤加利森林的生長。”這種結構有助於表達假設和條件關係。

掌握這些表達方式將有助於加深你對英語語法的理解，而在與他人交流時，也能讓你表達得更加流暢自然。你可以通過 shadow speak 的方式，反覆跟讀並內化這些句式，讓語言學習變得更高效。

常見發音陷阱

在影片中，一些難以發音的單詞包括“尤加利”（eucalyptus）和“蜜蜂鳥”（bell miner）。注意這些詞的重音和節奏，避免出現平淡的語調。此外，演講者的澳大利亞口音可能對非母語者造成一些挑戰。模仿這些發音可以幫助你提升自己的發音技巧和聽力理解能力，確保在實際交流中能夠更好地理解對方的意思。

通過關注並反覆練習這些發音，能夠有效提升你的口語表達，使你在任何場合下都能自信地展示自己的英語能力。利用 英語影子跟讀 的方式，進行跟讀和模仿，將你的學習變得更有趣。

影片中的語法

說話人最常用的結構，並附上影片中的原話：

結構	影片中的用法
被動語態 be + 過去分詞 — 強調發生了什麼，而不是誰做的	being washed · was injected · are affected
定語從句 who / which + 從句 — 補充說明人或事物	name, which was · solution which has · rainforest, which is
現在完成時 have/has + 過去分詞 — 過去發生但與現在仍有關聯的事	has been · has led

什麼是跟讀法？

跟讀法 (Shadowing) 是一種有科學依據的語言學習技巧，最初開發用於專業口譯員的培訓，並由多語言者Alexander Arguelles博士普及。這個方法簡單而強大：您在聽英語母語原聲的同時立即大聲重複——就像是一個延遲1-2秒緊跟說話者的影子。與被動聽力或語法練習不同，跟讀法強迫您的大腦和口腔肌肉同時處理並模模擬實的講話模式。研究表明它能顯著提高發音準確性，語調，節奏，連讀，聽力理解和口語流利度——使其成為雅思口語備考和真實英語交流最有效的方法之一。

影子跟讀法: 閱讀完整分步指南 →

跟讀練習: Cambridge 15 listening (Test-1) (Part-4) - 通過影片學習英語口語

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為什麼要用這個影片練習口語？

語法與表達結構分析

常見發音陷阱

影片中的語法

什麼是跟讀法？