托福听力课外资料练习：科学美国人60秒大白鲨之吻相关内容分享

在托福听力考试的备考过程中，科学美国人60秒相信大家一定用得比较多，那么大家平时是如何利用这个课外资料的呢?这里小编整理了科学美国人60秒：大白鲨之吻相关的内容分享，大家一起来学习一下吧。

科学美国人60秒听力练习：大白鲨之吻

科学美国人60秒英文文本

Until a great white shark reaches about three meters in length, its jaws can't handle the kind of Spielbergian bite force usually associated with the killer fish. Cynthia Graber reports

除非大白鲨长到3米长，否则，它们的牙齿不能像斯在皮尔伯格的电影里那样，成为死亡象征。CG报道。

They’re everyone’s worst nightmare when it comes to swimming in the ocean: great white sharks. That’s despite the fact that the number of fatal shark attacks annually can usually be counted on the fingers of one still attached hand. But a new study finds that until great whites get at least three meters long, they’re less [Jaws music] and more [gentle music]. Because a full-force bite could wind up hurting them.

In research published in the Journal of Biomechanics [Stephen Wroe et al., article in press], scientists used 3-D computers models and advanced engineering techniques to study how sharks hunt and kill their food.

Great whites have jaws and teeth that are perfect for a powerful chomp on prey ranging from small fish to large marine mammals. But the researchers were surprised to find that a shark less than three meters long only looks like it could manage that killer bite. Because it hasn’t developed enough stiff, mineralized cartilage yet. A bite that would be lethal to a large marine mammal could damage the shark’s jaws.

The finding may explain why the few shark attacks that do happen on people are rarely fatal—until it’s pretty big, the great white’s reputation is worse than its bite.

科学美国人60秒中文翻译：

游弋在深海中的他们是每个人的恶梦：大白鲨。尽管事实是每年人类遭受鲨鱼袭击致死的次数通常是一个手就数的过来。然而一项新的研究发现，在大白鲨成长到至少三米长之前，他们就不太[音乐：凶狠]而是更多[音乐：柔和]。因为全力一咬很可能以伤害他们自己而告终。

在生物力学研究杂志上发表的一项调查表明[作者：Stephen Wroe等，引用待定]，科学家使用三维计算机模型和先进的工程技术来研究鲨鱼如何猎杀他们的食物。

大白鲨的嘴巴和牙齿是一副功能强大的捕猎工具：猎物从小型鱼类到大型海洋哺乳动物。但研究人员惊奇地发现，小于3米长的鲨鱼仅是外表看起来杀气腾腾。因为其软骨坚硬度和矿物含量都不够。对于大型海洋哺乳动物的致命一咬将会伤害到鲨鱼的下巴。

这一发现或许解释了为什么鲨鱼袭击却少有人丧命--直到它长到相当的大。大白鲨咬杀的恶名比它真实的一嘴可厉害多了。

1. in length 长度

2. wind up 结束，停止

3. jaw n.颌，颚

4. chomp 大声咀嚼(草料等),格格地咬

5. mammal n.哺乳动物

6. cartilage n. 软骨

7. lethal a.致命的

以上就是小编为大家整理的科学美国人60秒：大白鲨之吻的文本以及翻译，大家练习的时候还可以找来音频资料一起练习，效果定会更好。最后，小编预祝大家托福考试能取得理想的成绩。

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