『新东方在线托福口语』为托福考生准备了ETS托福TPO/Official 39 Task 4口语练习：<img src="/upload/ti/2427000-2428000/2427307/11292164573245bf8a056f0054dc98e3.jpg">
<br>Using the ex原文题目答案解析，TPO/Official 39 Task 4口语原文范文音频翻译。

托福TPO/Official 39 Task 4口语原文独立/综合口语题目答案解析-范文音频翻译-新东方托福官方网校手机版

旁白：来听生物课讲座上的一部分。

Narrator: Listen to part of a lecture in a Biology class.

教授：有些动物生活在高山上，

Professor: There are certain animals that live high in the mountains,

在树线以上，也就是树不会生长的地方。

at altitudes of above the tree line where trees don't grow.

在这个多山的环境中四处走动是很有挑战性的，

And moving around in this mountainous environment can be challenging,

because the mountain slopes can be very steep and rocky.

除此之外，经常有冰或雪使这些岩石斜坡滑更加危险。

Besides that, there's often ice or snow making these rocky slopes slippery and dangerous.

因此，生活在高海拔地区的动物具有特殊的特征，可以帮助它们在这个艰难的山区环境中移动。

So animals that live at high altitudes have special features that help them move around in this difficult mountainous environment.

许多山地动物有强壮的肌肉，帮助它们爬上陡峭的斜坡。

many mountain animals have strong muscles that help them climb up and down the steep slopes.

As they're moving around looking for food,

它们必须爬上这些及其陡峭的山坡，然后再下来。

they have to climb up these really steep mountainsides at a dramatic incline and get down again too.

对于许多动物来说，这将是一个真正的问题，需要强大的力量和平衡。

For many animals, this would be a real problem requiring great strength and balance.

山地山羊，它们生活在北美部分地区的山上。

Mountain goats, which live high up in the mountains in parts of North America.

山羊在前肢区域有一个很大的，肌肉发达的胸部，

Mountain goats have a large, well-muscled chest in front-leg area,

这些巨大的，发达的肌肉帮助它们爬上几近垂直的山坡，

and these big, developed muscles in this area help them pull themselves up these near vertical slopes,

and balance in tight positions when climbing down.

此外，山地动物通常有特别的、适应环境的脚，当它们在冰面或岩石上行走时，可以帮助它们避免滑落。

Also, mountain animals often have specially adapted feet that help them keep from slipping when they're walking over ice or rocks.

High-altitude mountain slopes can be very slippery,

尤其是当有雪或冰的时候，如果它们掉下来的话，还有很长的路要走。

especially when there's snow or ice on them, and it's a long way down if they fall.

因此，山地动物需要有一个安全、可靠的立足点。

So mountain animals need to have a safe, sure footing.

这些羊有特殊的脚趾可以独立运动，

these sheep have special toes that move independently,

使得脚趾可以伸进岩石和冰中。

它们的后肢有特殊的圆形软垫，可以帮助它们抓住岩石或冰的表面，

And the back parts of their feet have special round rubbery pads that help them grip the surface of the rock or ice,

<img src="/upload/ti/2427000-2428000/2427307/11292164573245bf8a056f0054dc98e3.jpg">
<br>Using the examples of the mountain goat and bighorn sheep, explain two special features that help animals move around in a mountainous environment.