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[00:01.59]第23课
[00:03.19]Television Day:Right or left?
[00:05.86]电视日:是右还是左?
[00:08.54]Which of your two hands do you use most?
[00:11.12]你最常用哪只手?
[00:13.69]Very few of us can use both of our hands equally well.
[00:16.51]我们当中很少有人能双手都运用自如.
[00:19.33]Most of us are right-handed.
[00:21.16]多数人惯用右手.
[00:22.99]Only about five people out of a hundred are left-handed.
[00:25.77]每100人中大约只有5人是左撇子.
[00:28.55]New-born babies can grasp objects with either of their hands,
[00:31.48]初生婴儿能用任何一个手握东西.
[00:34.40]but in about two years they usually prefer to use their right hands.
[00:37.47]但过2年他们通常用右手了.
[00:40.54]Scientists don't know why this happens.
[00:42.72]科学家不知道这是怎么形成的.
[00:44.90]They used to think that that we inherited this tendency from our animal ancestors
[00:47.99]过去他们常认为我们从我们的动物祖先那儿继承了这一习性,
[00:51.07]but this may not be true.
[00:52.83]但这不一定对.
[00:54.60]Monkeys are our closest relatives in the animal world.
[00:57.17]猴子是我们在动物世界中关系最近的动物.
[00:59.74]Scientists have found that
[01:01.43]科学家们发现
[01:03.11]monkeys prefer to use one of their hands more than the other
[01:05.79]猴子喜欢用某只手多于另一只手
[01:08.47]but it can be either hand.
[01:10.19]但这可是两只手中的任何一只.
[01:11.92]There are as many right-handed monkeys as there are left-handed ones.
[01:14.95]用右手的猴子与用左手的猴子一样多.
[01:17.98]Next time you visit the zoo,watch the monkeys carefully.
[01:20.65]下次你去动物园时,仔细观察一下猴子.
[01:23.33]You'll see that some of them will prefer to swing from their right hands
[01:26.15]你会发现有些猴子用右手荡秋千,
[01:28.97]and others will use their left hands.
[01:31.00]而另一些猴子则用左手.
[01:33.02]But most human beings use their right hands better.
[01:35.66]但大多数人用右手更为灵活,
[01:38.30]and this makes life difficult for those who prefer to use their left hands.
[01:41.22]这就使得用左手的人生活较困难些.
[01:44.15]We live in a right-handed world.
[01:46.32]我们生活在一个惯用右手的世界.