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上期翻译答案
Nearly 50% of cancer deaths worldwideare caused bypreventable risk factors, such as smoking and drinking alcohol, according to the largest study of the link between cancer burden and risk factors.
一项最大规模的针对癌症负担与风险因素关系的研究显示，全球近50%的癌症死亡是由吸烟和饮酒等可预防性风险因素导致的。
《本期内容》
双语阅读
A new study estimates there are 20quadrillionindividual ants across the globe, which together weigh more than all wild birds and mammals combined.“Anyone who’s looked at ants and realised there are lots of them has probably wondered how many there may be in total – it’s just a question that’s on people’s minds,” says Patrick Schultheiss at the University of Hong Kong, who co-led the study with his colleague Sabine Nooten at the Julius Maximilian University of Würzburg in Germany.
一项新的研究估计，全球有2亿亿只蚂蚁，所有蚂蚁的总重量比所有野生鸟类和哺乳动物的生物总重量还要大。香港大学的派翠克·斯图尔特伊斯和他的同事，德国朱利斯马克西米兰大学的沙滨·努滕，共同主持了这项研究，他说：“任何观察过蚂蚁并意识到有很多蚂蚁的人，可能都会想知道世界上总共有多少只蚂蚁——这只是人们心中的一个疑问。”
To provide an answer, they compiled data from 489 studies that measured ant densities in different parts of the world using standardised methods. Theyextrapolatedthis data to estimate there are approximately 20,000,000,000,000,000, or 20 quadrillion, ants across the globe.
为了回答这个问题，他们收集了来自489项研究中的数据，这些研究用标准化的方法测量了世界不同地区的蚂蚁密度。他们根据这些数据推断，全球大约有2亿亿只蚂蚁。
The totalbiomassof this global ant population – the collective weight of carbon in all the individuals – is about 12 million tonnes. This is more than wild birds and mammals combined, which have a total biomass of 2 million tonnes and 7 million tonnes, respectively. Humans, by comparison, have a total biomass of 60 million tonnes.
全球蚂蚁种群的总生物量——所有个体的总碳重量——约为1200万吨。这比野生鸟类和哺乳动物的总和还要多，它们的生物量分别为200万吨和700万吨。相比之下，人类的总生物量为6000万吨。
Previous estimates of the number of ants on Earth were “essentiallyeducatedguesses” that extrapolated from ant densities measured in one or two locations, says Schultheiss. The latest analysis aimed to be more accurate by looking at studies from all continents and written in different languages. There are still gaps in our knowledge, however, because most ant counts have been conducted on the ground, rather than in trees or underground, says Schultheiss. Statistics from Africa and northern Asia are also limited.
斯图尔特伊斯说，以前对地球上蚂蚁数量的估计“基本上是有根据的猜测”，即根据地球上一两个点位的测量的蚂蚁密度推断出来的。翻译划线句，长按文末小程序码打卡，答案下期公布~然而，斯图尔特伊斯说，我们的认知仍有差距，因为大多是对地面的蚂蚁计数，而没有算树上和地下的蚂蚁。非洲和北亚的统计数据也很有限。
There are 15,700 known species and subspecies of ants. The insects are vital to most ecosystems because of their roles indispersingseeds, increasing nutrient availability via soil turnover and providing food for ant-eating animals. Knowing the global ant population is important for conservation purposes, says Nooten.
全球已知的蚂蚁种类和亚种有15700种。因为蚂蚁可以传播种子、通过翻动土壤增加土地的营养性，为食蚁动物提供食物等，这种昆虫在大多数生态系统中都发挥着至关重要的作用。努滕说，掌握全球蚂蚁的数量对于生态保护的目标来说很重要。
本文节选自：New Scientist （新科学家）
发布时间：2022.09.19
作者：Alice Klein
原文标题：There are 20,000,000,000,000,000 ants crawling all over Earth
词汇积累
1.quadrillion
英 [kwɒˈdrɪljən] 美 [kwɑːˈdrɪljən]
n. 百万之四次方；千的五次方
adj. 千之五次方的
2.extrapolate
英 [ɪkˈstræpəleɪt] 美 [ɪkˈstræpəleɪt]
vt. 外推；推断
vi. 外推；进行推断
3.biomass
英 [ˈbaɪəʊmæs] 美 [ˈbaɪoʊmæs]
n. 生物量；生物质能燃料
4.dispersing
美 [dɪˈspɜːrs]
n. 分配，分散
adj. 分散的
v. 使散开；散布；驱散（disperse 的现在分词）
词组搭配
1.educated guess n. 有根据的推测
写作句总结
原句：Anyone who’s looked at ants and realised there are lots of them has probably wondered how many there may be in total – it’s just a question that’s on people’s minds.
结构：Anyone who’s looked at XX and realised XX has probably wondered how XX – it’s just a question that’s on people’s minds.
例句：Anyone who’s benefited from studying and realized how important it is has probably wondered how to use the knowledge to become a better self – it’s just a question that’s on people’s minds.
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