实例讲解 | 雅思口语part 3 答题思路全解(附语料)

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雅思口语中Part3有关人类行为对生态影响类话题是十分常见的话题。

讨论的角度可以从宏观的层面上来讨论，人类本身的行为如何影响了地球的整体自然环境；

亦可以从微观角度分析，人类的某些行为是如何影响某物种的生活习性，例如改变了物种的捕食习惯，繁衍地等。

下面我们通过举例：海龟由于人类行为而形成的新的坏习惯，给大家呈现，人类行为对生态的影响，是如何论证的。

1

Turtles have an unfortunate habit ofdevouringplastic objects floating in the sea.

These then get snared in theiralimentary canals, cannot bebroken downby the animals' digestive enzymes and mayultimatelykill them.

It is widely assumed thatthispenchant forplastics is a matter of mistaken identity.

Drifting plastic bags, for instance, look similar to jellyfish, which many types of turtles love to eat.Yet lots of plastic objects that end up inside turtleshave no resemblance tojellyfish.

【翻译】

海龟有一个坏习惯，就是吞食漂浮在海里的塑料制品。

然后这些东西会陷入消化道，无法被动物的消化酶分解，并最终可能致死。

人们普遍认为，这种对塑料的嗜好是一种错误的识别。

例如，漂浮的塑料袋看起来就像许多海龟喜欢吃的水母。

【思路】

对于这类话题，我们首先可以阐述事实情况，然后展现出大多数人的一种普遍想法，最后通过科学的研究来展现出导致该事实发生的真实原因。

在这里，我们可以用;It is widely assumed that;强调句型来表达普通大众的想法，为接下来的转折表达做准备。

【语料】

devour vt.毁灭；吞食；凝视

She was devoured by envy and hatred.

她心中充满嫉妒和憎恨。

alimentary canal消化道

He had the disease of alimentary canal.

他患了消化道疾病。

break down分解；发生故障

The car broke down halfway to the camp.

车子在去营地的半路上抛锚了。

ultimately adv.最后;最终

Vitamin C deficiency can ultimately lead to scurvy.

缺乏维生素C 最终能导致坏血病。

It is widely assumed that.....

人们普遍认为

It is widely assumed that people need to engage in intellectual activities.

人们普遍认为，人是需要从事智力活动的。

penchant for

对的嗜好; 对的倾向;

She has a penchant for Indian food.她爱吃印度食物。

have no resemblance to...

与....毫无相似之处

Their teeth have no resemblance to those of any modern land animal.

它们的牙齿与任何现代陆地动物的牙齿都不相似

2

Two of the smellsprovedfar more attractive to the animals than the others.

Whensniffingboth theodourof food pellets and that of five-week-old bottles

turtles kept theirnostrilsout of the water more than three times as long,

and took twice as many breaths as they did when what was on offer was the smell of fresh bottle-plastic or deionised-watervapour.

On the face of it, then, the turtles were responding to the smell of old bottles as if it were the smell of food.

【翻译】

事实证明，其中两种气味对动物的吸引力要比其他气味大得多。

当海龟闻食物颗粒的气味和那个五周瓶子的气味时，它们鼻子离开水的时间是闻到新鲜塑料瓶或去离子水蒸汽气味时的三倍，呼吸的次数是闻到新鲜塑料瓶或去离子水蒸汽气味时的两倍。从表面上看，海龟对旧瓶子的气味的反应就像闻到食物的气味一样。

【思路】

这段话可以用于阐述研究的结论部分，做话题的总结。

【语料】

prove vt.证明，检验; 试验

She has proved her innocence to us.

她已向我们证明她是无罪的。

sniff vt.用力闻；嗅；发觉；

The dog sniffed suspiciously at the stranger.

狗疑惑地嗅着那个陌生人。

odour n.气味; 臭气

The unspeakable odour clung to the room.

一股难以形容的气味充斥着房间散不出去。

nostril n.鼻孔

Her nostrils flared with anger.

她气得两个鼻孔都鼓了起来

vapour

n.蒸气（等于vapor）；水蒸气

Clouds are formations of condensed water vapour.

云是由凝聚的水蒸气构成的。

On the face of it

adv.从表面判断；乍看起来

Now on the face of it, that might sound like a good thing.乍一听，这可能是件好事。

海龟吃塑料，虽然有这个物种自身器官的影响，但主要的源头是人类活动。

在雅思口语Part3的话题讨论中，关于人类活动对环境和生物的影响，是亘古不变的一类考题类型。

那么在我们回答这类问题时，一定要时刻记住回答的切入角度，有的行为是影响了地球的整体自然环境，而有的是影响了某物种的生活习性。

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