在雅思口语中，与人类行为相关的人类行为是一个非常常见的生态影响话题。从宏观层面可以探讨人类自身的行为如何影响地球的整体自然环境；也可以从微观角度分析人类的某些行为如何影响某一物种的生活习惯，如改变物种的捕食习惯、繁殖地等。下面由新航道的沈阳雅思小编为您解答！
让我们举一个例子：海归因人类行为而形成的新的坏习惯，以及如何证明人类行为对生态的影响。
Turtles have an unfortunate habit of devouring plastic objects floating in the sea.
These then get snared in their alimentary nals, nnot be broken down by the animals' digestive enzymes and may ultimately kill them.
It is widely assumed that this penchant for plastics 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 turtles have no resemblance to jellyfish.
翻译
海归有一个坏习惯，那就是吞下漂浮在海里的塑料制品。
然后这些东西就会陷入消化道，不能被动物的消化酶分解，最终可能导致死亡。
许多人认为这种塑料习惯是一种错误的识别。
例如，漂浮的塑料袋看起来像许多海归喜欢吃的水母。
雅思口语PART3答题方法
思路
对于这类话题，我们首先可以解释事实，然后展示大多数人的共同想法，最后通过科学研究展示事实的真正原因。
在这里，我们可以用“It is widely assumed that强调句型来表达普通人的思想，为下一个转折点做好准备。
语料
devour vt. 毁灭；吞食；凝视
She was devoured by envy and hatred.
她的心里充满了嫉妒和仇恨。
alimentary AC nal 消化道
He had the disease of alimentary ac nal.
他患有消化道疾病。
break down 分解；出现故障
The r broke down halfway to the mp.
车子在去营地的路上抛锚了。
ultimately adv. 最终;最后
Vitamin C deficiency n ultimately lead to scurvy.
缺乏维生素C 最终会导致坏血病。
It is widely assumed that...
许多人认为
It is widely assumed thatpeopleneedtoengageinintellectualactivities.
许多人认为人们需要从事智力活动。
penchant for
对…的爱好；正确的趋势；正确的趋势；
She has a penchant for Indian food.她喜欢印度食物。
have no resemblance to...
与...没有相似之处
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都不相似
Two of the smells proved far more attractive to the animals than the others.
When sniffing both the odour of food pellets and that of five-week-old bottles
turtles kept their nostrils out 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-water vapour.
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，这两种口味比其他口味对动物更有吸引力。
当海归闻到食物颗粒和五周瓶子的气味时，鼻子离开水的时间是新鲜塑料瓶或去离子蒸汽的三倍，呼吸次数是新鲜塑料瓶或去离子蒸汽的两倍。从表面上看，海归对旧瓶子气味的反应就像闻到食物的气味一样。
思路
这句话可以用来讨论研究的观点部分，做话题的总结。
语料
prove vt. 确认、检测；实验
She has proved her innocence to us.
她向我们证实了她是无辜的。
sniff vt. 用力闻；嗅；发现；
The dog sniffed suspiciously at the stranger.
狗怀疑地嗅着那个陌生人。
odour n. 味道; 臭味
The unspeakable odour clung to the room.
一股难以形容的气味充满了房间散不出来的气味。
nostril n. 鼻孔
Her nostrils flared with anger.
她气得两个鼻孔都鼓了起来
vapour
n. (等于vapor)；水蒸汽
Clouds are formations of condensed water vapour.
云是由水蒸气凝结而成。
On the face of it
adv. 从表面判断；乍一看，它看起来像；
Now on the face of it, that might sound like a good thing.乍一看，这可能是件好事。
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