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短篇科普小品：第三篇
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英文原文
Small desert pools scattered across arid lands
serve as the last refuge for a rare fish called desert pupfish.
These isolated water holes shrink rapidly during hot summers,
putting the tiny fish at risk of total local extinction.
Decades of groundwater pumping for farm irrigation
has lowered the underground aquifers that feed these pools.
As the water table drops, some historic habitats
dry up completely and vanish from the landscape forever.
Desert pupfish have adapted to survive extreme conditions
that few other freshwater species could ever tolerate.
They can handle wide swings in water temperature
and live in water with high salt concentrations.
Even so, they cannot survive when their shallow pools
disappear under the burning desert sun.
Biologists launch ongoing rescue projects
to preserve the remaining populations of desert pupfish.
They capture wild pupfish from surviving springs,
breed them in carefully controlled captive facilities,
and reintroduce the young fish into restored desert pools.
Researchers continuously monitor water levels,
salinity and temperature inside these new habitats.
They also remove invasive non-native fish species
which compete with pupfish for limited food and space.
Local land managers work together with research teams
to limit excessive groundwater extraction nearby.
This cooperative effort aims to stabilize aquifers
and keep desert water pools filled year-round.
Climate change adds another heavy pressure
to these fragile desert aquatic ecosystems.
Hotter summers bring faster evaporation,
making drought periods longer and more severe.
Scientists warn that conservation work must continue
for many years to secure the future of this unique desert fish.
Saving the desert pupfish is more than protecting one species.
It acts as an important indicator of desert water health,
guiding people to safeguard scarce desert water resources.
译文
散布在干旱土地上的小型沙漠水潭，
是一种名为沙漠鳉鱼的稀有鱼类最后的庇护所。
这些孤立水潭在炎热夏季会快速萎缩，
让这种小型鱼类面临区域性彻底灭绝的风险。
数十年来，农业灌溉持续抽取地下水，
使得补给这些水潭的地下含水层水位不断下降。
随着地下水位降低，一些历史栖息地
完全干涸，永久从这片土地上消失。
沙漠鳉鱼已经演化出适应极端环境的能力，
很少有其他淡水物种能够忍受这样的环境。
它们可以承受大幅度的水温波动，
并生活在高盐度的水体当中。
即便如此，一旦浅水水潭
在炙热的沙漠日光下消失，它们便无法存活。
生物学家持续开展抢救项目，
来保存现存的沙漠鳉鱼种群。
他们从尚存的泉水中捕捞野生鳉鱼，
在管控严格的人工繁育基地培育，
再将幼鱼放归到经过修复的沙漠水潭中。
研究人员持续监测这些新栖息地内的水位、
盐度与水温。
他们同时清除外来入侵鱼类，
这些物种会和鳉鱼争夺有限的食物与生存空间。
当地土地管理者与科研团队协同合作，
限制周边过量开采地下水。
这项联合工作旨在稳定地下含水层，
让沙漠水潭能够常年保有水源。
气候变化给这些脆弱的沙漠水生生态系统
增添了另一重巨大压力。
夏季气温升高加速水分蒸发，
干旱周期随之变得更长、更严峻。
科学家提醒，保护工作必须长期持续开展，
才能守护这种独特沙漠鱼类的未来。
拯救沙漠鳉鱼，不仅仅是保护单一物种。
它是沙漠水体健康的重要指示生物，
引导人类守护稀缺的沙漠水资源。
一、核心生词
1. pupfish
/ˈpʌpfɪʃ/
鳉鱼
名词（n.）
2. arid
/ˈærɪd/
干旱的
形容词（adj.）
3. refuge
/ˈrefjuːdʒ/
庇护所
名词（n.）
4. aquifer
/ˈækwɪfə(r)/
地下含水层
名词（n.）
5. tolerate
/ˈtɒləreɪt/
忍受；耐受
动词（v.）
6. salinity
/səˈlɪnəti/
盐度
名词（n.）
7. captive
/ˈkæptɪv/
人工圈养的
形容词（adj.）
8. reintroduce
/ˌriːɪntrəˈdjuːs/
重新放归
动词（v.）
9. invasive
/ɪnˈveɪsɪv/
入侵性的
形容词（adj.）
10. evaporation
/ɪˌvæpəˈreɪʃn/
蒸发
名词（n.）
二、重点短语
1. desert pupfish
沙漠鳉鱼
2. groundwater pumping
地下水抽取
3. underground aquifer
地下含水层
4. water table
地下水位
5. captive facilities
人工繁育基地
6. non-native species
外来物种
7. groundwater extraction
地下水开采
8. aquatic ecosystem
水生生态系统
三、长难句拆解
句子
Small desert pools scattered across arid lands
serve as the last refuge for a rare fish called desert pupfish.
主干：
Small desert pools scattered across arid lands serve as the last refuge
后置定语：
for a rare fish called desert pupfish
主干译文：
散布在干旱土地上的小型沙漠水潭是最后的庇护所。
定语译文：
供一种名叫沙漠鳉鱼的稀有鱼类栖息。
整句译文：
散布在干旱土地上的小型沙漠水潭，
是一种名为沙漠鳉鱼的稀有鱼类最后的庇护所。
句子结构：主句，过去分词作后置定语
句子
Decades of groundwater pumping for farm irrigation
has lowered the underground aquifers that feed these pools.
主干：
Decades of groundwater pumping for farm irrigation
has lowered the underground aquifers
定语从句：
that feed these pools
译文：
数十年来，农业灌溉持续抽取地下水，
使得补给这些水潭的地下含水层水位不断下降。
句子结构：主句 + that引导限制性定语从句
句子
They capture wild pupfish from surviving springs,
breed them in carefully controlled captive facilities,
and reintroduce the young fish into restored desert pools.
主干：
They capture wild pupfish from surviving springs,
breed them in carefully controlled captive facilities,
and reintroduce the young fish into restored desert pools
译文：
他们从尚存的泉水中捕捞野生鳉鱼，
在管控严格的人工繁育基地培育，
再将幼鱼放归到经过修复的沙漠水潭中。
句子结构：主句，三个并列谓语
句子
Saving the desert pupfish is more than protecting one species.
It acts as an important indicator of desert water health,
guiding people to safeguard scarce desert water resources.
主干：
Saving the desert pupfish is more than protecting one species
伴随状语：
guiding people to safeguard scarce desert water resources
译文：
拯救沙漠鳉鱼，不仅仅是保护单一物种。
它是沙漠水体健康的重要指示生物，
引导人类守护稀缺的沙漠水资源。
句子结构：动名词作主语；现在分词作伴随状语
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