英语听力文摘 English Digest 606、鲸鱼会被晒伤吗？

 　　The ozone¹ layer is thinner than it used to be. This fact has motivated humans to keep themselves protected from the sun’s ultraviolet, or UV, rays. But just because we can protect ourselves from these rays doesn’t mean that they don’t still exist–they exist, and are targeting the most vulnerable marine² mammal, the whale.

 

　　Researchers at the University of London have been studying the effects of UV rays on whales in the Gulf³ of California for over three years. Whale skin samples taken during this study have shown an increased prevalence in sun damage, visible in the form of lesions and blisters⁴.

　　Their study has shown that like humans, lighter-skinned whales are more susceptible⁵ to skin damage caused by the sun. Unlike humans, whales are unable to protect themselves they are forced to come to the surface to breathe, where they are fully⁶ exposed to the sun’s harsh rays. University of London researchers theorize that there may be some correlation⁷ between the severity of skin damage and the amount of time spent at the ocean’s surface, which varies based on whale species.

 

　　Biopsies of skin samples indicated evidence of DNA⁸ damage in the deepest layers of the whales’ skin cells. Researchers concede that there is little hope of reducing these damaging affects within the next several years. They can only hope that whales’ cellular⁹ repair mechanisms¹⁰ can adjust to offset¹¹ this damage.

 

　　Will skin damage in whales lead to skin cancer as it does in humans? Could whales adapt to this increased UV radiation by perhaps, getting “suntans”? These are the types of questions that will be taken into consideration in future studies.

1 ozone   

n.臭氧，新鲜空气

参考例句：

• The ozone layer is a protective layer around the planet Earth.臭氧层是地球的保护层。
• The capacity of ozone can adjust according of requirement.臭氧的产量可根据需要或调节。

2 marine   

adj.海的；海生的；航海的；海事的；n.水兵

参考例句：

• Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
• When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。

3 gulf   

n.海湾；深渊，鸿沟；分歧，隔阂

参考例句：

• The gulf between the two leaders cannot be bridged.两位领导人之间的鸿沟难以跨越。
• There is a gulf between the two cities.这两座城市间有个海湾。

4 blisters   

n.水疱( blister的名词复数 )；水肿；气泡

参考例句：

• My new shoes have made blisters on my heels. 我的新鞋把我的脚跟磨起泡了。 来自《现代汉英综合大词典》
• His new shoes raised blisters on his feet. 他的新鞋把他的脚磨起了水疱。 来自《简明英汉词典》

5 susceptible   

adj.过敏的，敏感的；易动感情的，易受感动的

参考例句：

• Children are more susceptible than adults.孩子比成人易受感动。
• We are all susceptible to advertising.我们都易受广告的影响。

6 fully   

adv.完全地，全部地，彻底地；充分地

参考例句：

• The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
• They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

7 correlation   

n.相互关系，相关，关连

参考例句：

• The second group of measurements had a high correlation with the first.第二组测量数据与第一组高度相关。
• A high correlation exists in America between education and economic position.教育和经济地位在美国有极密切的关系。

8 DNA   

(缩)deoxyribonucleic acid 脱氧核糖核酸

参考例句：

• DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
• Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。

9 cellular   

adj.移动的；细胞的，由细胞组成的

参考例句：

• She has a cellular telephone in her car.她的汽车里有一部无线通讯电话机。
• Many people use cellular materials as sensitive elements in hygrometers.很多人用蜂窝状的材料作为测量温度的传感元件。

10 mechanisms   

n.机械( mechanism的名词复数 )；机械装置；[生物学] 机制；机械作用

参考例句：

• The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
• He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》

11 offset   

n.分支，补偿；v.抵消，补偿

参考例句：

• Their wage increases would be offset by higher prices.他们增加的工资会被物价上涨所抵消。
• He put up his prices to offset the increased cost of materials.他提高了售价以补偿材料成本的增加。