概括:內(nèi)容選自老托福聽(tīng)力,是練習(xí)托福聽(tīng)力的絕佳材料。


Hints:
closed-circuit TV
In our lab today, we'll be testing the hypothesis that babies can count as early as five months of age. The six babies here are all less than six months old. You'll be watching them on closed-circuit TV and measuring their responses. The experiment is based on the well-established observation that babies stare longer if they don't see what they expect to see. First, we're going to let two dolls move slowly in front of the babies. The babies will see the two dolls disappear behind a screen. Your job is to record, in seconds, how long the babies stare at the dolls when the screen is removed. In the next stage, two dolls will again move in front of the babies and disappear. But then a third doll will follow. When the screen is removed, the babies will only see two dolls. If we're right, the babies will now stare longer because they expect three dolls but only see two. It seems remarkable to think that such young children can count. My own research has convinced me that they have this ability from birth. But whether they do or not, perhaps we should raise another question - should we take advantage of this ability by teaching children mathematics at such a young age? They have great untapped potential, but is it good for parents to pressure young children?
在我們今天的實(shí)驗(yàn)中,我們將檢驗(yàn)嬰兒早在五個(gè)月大的時(shí)候就能數(shù)數(shù)的假說(shuō)。參加實(shí)驗(yàn)的6個(gè)嬰兒被試年齡都在5個(gè)月以下。你需要通過(guò)閉路電視觀察他們,測(cè)量他們的反應(yīng)時(shí)。 如果嬰兒沒(méi)有看到自己想看的東西,他會(huì)注視更長(zhǎng)的時(shí)間,實(shí)驗(yàn)是建立在這一已經(jīng)確認(rèn)的觀察結(jié)論的基礎(chǔ)之上的。首先,我們會(huì)讓兩個(gè)布偶在嬰兒面前緩慢移動(dòng),嬰兒會(huì)看見(jiàn)那兩個(gè)布偶消失在屏幕后方。你的工作就是在短時(shí)間內(nèi)記錄當(dāng)屏幕被移開(kāi)時(shí),嬰兒會(huì)注視布偶多長(zhǎng)時(shí)間。 下一步,兩個(gè)布偶還會(huì)在嬰兒面前移動(dòng)并且逐漸消失。但是這時(shí)后面會(huì)跟上第三個(gè)布偶。當(dāng)屏幕被移開(kāi)時(shí),嬰兒只能看見(jiàn)兩個(gè)。如果我們的理論是正確的,嬰兒現(xiàn)在會(huì)凝視更長(zhǎng)的時(shí)間因?yàn)樗麄兤谕吹降氖侨齻€(gè)布偶,但是現(xiàn)在只看到了兩個(gè)。 考慮到這么小的孩子能夠數(shù)數(shù),這看起來(lái)不同凡響。我自己的研究使我相信他們的這種能力是從一出生就有的。但是無(wú)論他們是否這樣做,也許我們應(yīng)該提出另一個(gè)問(wèn)題——我們應(yīng)該教這么小的孩子學(xué)數(shù)學(xué)來(lái)利用和發(fā)展他們的這種能力嗎?他們有巨大的未發(fā)現(xiàn)和開(kāi)發(fā)的潛能,但是作為父母來(lái)說(shuō)給小孩子壓力是一種值得稱(chēng)贊的事情嗎? ——譯文來(lái)自: zjxsdnu01