翻译题 Climate science needs more mathematicians and physicists. So say prominent climatologists who are trying to spark enthusiasm for their field in budding researchers who might otherwise choose astrophysics or cosmology. 【F1】Talented physical scientists are needed to help resolve mysteries that are crucial to modelling the climate—and, potentially, saving the planet—the group says, such as the ways in which clouds are formed.
There is a misconception that the major challenges in physical climate science are settled. "That's absolutely not true," says Sandrine Bony, a climate researcher at the Laboratory of Dynamic Meteorology in Paris.
To attract physics and mathematics students to the speciality, Bony and her collaborators have presented some of the field's grand challenges in magazines. Last week in Nature Geosdence, Bony's team outlined four of the field's deepest questions, including how clouds and climate interact and how the position of tropical rain belts and mid-latitude storm tracks might change in a warming world. The questions are best tackled, says Bony, by creating more realistic climate simulations—an approach that she hopes will appeal to physicists.
【F2】The perception that climate science is "solved" is an unintentional result of pressure on climatologists to convey a simple message to the public—for instance, that all dry regions will get dryer and all wet regions wetter in a warming climate, says Piers Forster, a climate modeller at the University of Leeds, UK. "We too quickly turn to the policy implications of our work and forget the basic science," adds Bjorn Stevens, a co-author of the Nature Geosdence paper. 【F3】Although climate scientists agree on the basics—for example, climate change is primarily the result of human activity—large uncertainties per-. sist in "climate sensitivity", the increase in average global temperature caused by a given rise in the concentration of carbon dioxide.
As Bony and co-authors argue, understanding how the warming climate might affect cloud cover, which influences the amount of sunlight reflected back into space and thus Earth's energy cycle, is key to addressing these uncertainties. 【F4】A major weakness of current climate models is their limited ability to simulate the convection by which humid air is lifted into the atmosphere and which drives cloud formation and rainfall.
Building better cloud-resolving models requires enormous computer power, as well as people who have a deep understanding of climate physics combined with skills in numerical modelling. But the number of scientists involved in developing computer algorithms for improved climate models is tiny. 【F5】Many physicists applaud Bony's effort to raise interest in climate science, but whether physics students will take notice of her call remains to be seen.
问答题 1.【F1】
【正确答案】这些气候学家说,需要一些有天赋的物理科学家来帮助解开那些对气候建模,甚至在潜在性上能够拯救地球的至关重要的奥秘,比如云层形成的方式。
【答案解析】①本句是包含两个定语从句的主从复合句。主句谓语是被动语态的形式,强调是主语Talented physical scientists被需要。help resolve sth.意为“帮助解决某事”。②that引导第一个定语从句,修饰主句中有待解决的对象mysteries;此定语从句的谓语为be crucial to doing sth.结构,意为“对……至关重要”。介词to后面是并列的动词ing形式,其一是modelling the climate,另一个是用破折号引出、起补充说明作用的saving the planet。③the group says在句中可视为插入语,补充说明主句所述内容出自何人之口,根据上文语境,可判断此处的the group指代首段第二句中的prominent climatologists。④句末的such as the ways…是对mysteries的举例说明,该短语中包含in which引导的定语从句,修饰的对象是ways,表示“是……的方式”。
问答题 2.【F2】
【正确答案】气象学家肩负向公众传递简单信息的压力,比如在全球变暖的大前提下所有干旱地区将更干旱,潮湿地区将更潮湿,此种压力其中一个副作用就是造成气候学“已再无奥秘”这一认识。
【答案解析】①本句是包含两个同位语从句的复合句,主句主干是The perception is an unintentional result,主句表语后的介宾短语of pressure on climatologists是result的后置定语,说明是气候学家承受压力导致的结果,不定式短语to convey a simple message to the public是pressure的后置定语,说明是要向公众传递简单信息的压力。②同位语的作用是补充说明被修饰词的内容。其中同位语从句1修饰的是主句主语The perception;同位语从句2修饰的是message,其中for instance表明此同位语从句举例说明message。get dryer是一个“get+比较级”的结构,表示“变得更……”,后半句中的wet region wetter为省略形式,其中省略了连接词and前已出现的will get。
问答题 3.【F3】
【正确答案】虽然气候科学家对气候学的基本原则达成了共识——例如,气候变化主要是人类活动的结果——在“气候敏感性”(即二氧化碳浓度升高所导致的全球平均气温的升高)中依然存在很大的不确定性。
【答案解析】①本句的主句是large uncertainties persist in“climate sensitivity”,前面是Although引导的让步状语从句,两个破折号之间的内容是对the basics的补充举例说明。②主句逗号后面的the increase in…caused by…为climate sensitivity的同位语,补充说明climate sensitivity具体是指由二氧化碳浓度升高所导致的全球平均气温的升高,该同位语中caused by…为修饰increase的后置定语。
问答题 4.【F4】
【正确答案】目前气候模型的主要弱点是模拟对流的能力有限,而在对流中潮湿的空气被提升到大气中,有助于云的形成和降雨。
【答案解析】①本句是复合句。主句主干为主系表结构,主句主语后的介宾短语of current climate models是其后置定语,说明是现有气候模型的主要弱点;their limited ability也有后置定语to simulate the convection,说明是在模拟对流方面的能力有限。②修饰ability的后置定语中的convection“对流”由两个定语从句并列修饰,第一个定语从句由by which引导,此引导词在从句中作状语,表示“通过……的方式”,谓语动词为被动语态的be lifted into。③第二个定语从句中由which引导,该引导词在从句中兼作主语,谓语动词为drive,意为“推动”,cloud formation和rainfall是其并列宾语。
问答题 5.【F5】
【正确答案】许多物理学家都赞赏博尼为提高物理学专业学生对气候学的兴趣所作出的努力,但是物理学专业学生是否会留意到她的呼吁还有待观察。
【答案解析】①本句包含两个分句,由转接连词but并列连接,说明前后分句为转折关系。第一个分句中的不定式短语to raise interest...是修饰effort的后置定语,说明是提升……方面的努力,介词短语in climate science也是后置定语,修饰interest。②第二个分句中,主语由whether引导的主语从句充当,该从句所述内容与主句谓语中的see存在逻辑上的被动关系,故see在句中使用了过去分词形式,remain意为“保持,有待”。