『新东方在线托福口语』为托福考生准备了ETS托福TPO/Official 1 Task 4口语练习：<img src="/upload/ti/2426000-2427000/2426847/e81c195d70ef4b3b8adc2bec6de6a108.jpg">
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原文题目答案解析，TPO/Official 1 Task 4口语原文范文音频翻译。

托福TPO/Official 1 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：现在请听一节心理学课上的部分内容。

Narrator: Now listen to part of a lecture in a psychology class.

教授正在讨论婴儿的数学能力。

The professor is discussing the mathematical capabilities of babies.

教授：科学家们发现了一些关于婴儿智力的有趣的事情。

Professor: Scientists have learned some interesting things about the intellectual abilities of babies.

他们说有证据表明，5个月大的婴儿可以做基本的算术——他们可以做加法运算。

They say there's evidence that babies as young as five months old can do basic arithmetic-- that they can add.

科学家认为婴儿知道1加1等于2，而不是1。

Scientists think babies know that one plus one equals two, and not one.

当然这些证据是间接的，因为很明显你不可能让一个五个月大的婴儿给你做加法运算。

The evidence is indirect because obviously you can't ask a five-month-old baby to add up some numbers for you.

所以他们设计了一个实验，在这个实验中，

So they devised an experiment, where in this experiment,

他们给一个婴儿在桌上展示了一个洋娃娃。

然后，研究人员在娃娃面前放下一个挡板，所以现在这个娃娃被藏在了挡板后面。

Then the researcher lowers a screen in front of the doll, so now the doll is hidden behind the screen.

但是婴儿已经看到了娃娃，所以知道那里有个洋娃娃。

But the baby has already seen the doll and so knows it's there.

然后，研究人员拿了第二个洋娃娃，很明显地把它放在屏幕后面，和第一个洋娃娃放在一起。

Well, then the researcher takes a second doll and very obviously places it behind the screen with the first one.

好了，所以现在屏幕后面有两个洋娃娃，对吧？

OK, so now you have two dolls behind the screen, right?

因为研究人员偷偷拿走了其中一个洋娃娃，

because what the researchers did was they secretly took away one of the dolls,

然后当他们把挡板升起来的时候，这个婴儿，

and then when they raise the screen back up, the baby,

嗯，它预计会看到两个娃娃，对吧？

well, it expects to see two dolls, right?

但是那里只有一个。猜猜会怎样？婴儿很惊讶。

But there's only one there. And guess what? The baby's surprised.

它期望有两个，但它只看到一个。

研究人员怎么判定婴儿表现出来的是惊讶呢？

How could the researchers tell that the baby's surprised?

嗯，他们记录了婴儿在镜头前的眼球运动。

Well, they recorded the baby's eye movements on camera.

我们知道，当一个婴儿被某物吓到，

And we know that when a baby is surprised by something,

可能是一声巨响，或是一束意想不到的闪光，

a loud noise or an unexpected flash of light maybe,

它凝视着噪音或光线从何而来。

it stares at where the noise or light is coming from.

And that's what the babies in the experiment did.

他们盯着看，因为婴儿知道：如果你加一个洋娃娃和一个洋娃娃，

They stared, because a baby knows that if you add one doll and one doll,

然后它盯着看，因为它很惊讶。

<img src="/upload/ti/2426000-2427000/2426847/e81c195d70ef4b3b8adc2bec6de6a108.jpg">
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 Using the research described by the professor, explain what scientists have learned about the mathematical abilities of babies.
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