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外刊素材来源：《Scientific American（科学美国人）（美国月刊）》
报刊原版标题：
Microbial Science and Human Immune Health
一、英文改编正文
Microbial science focuses on the study of tiny organisms
such as bacteria, fungi and viruses
that cannot be directly observed by human naked eyes,
and explores their complex interactions
with the human body and surrounding environments.
Trillions of microbes settle on human skin, oral cavity
and intestinal tracts, forming a unique microbial community
that participates in food digestion, nutrient absorption
and the regulation of the body’s immune responses.
A balanced gut microbiome can restrain the overgrowth
of harmful pathogenic microorganisms,
while the imbalance of microbial groups
may trigger inflammatory reactions
and increase the risk of various chronic illnesses.
Scientists cultivate microbial samples in controlled laboratories
to analyze their biological characteristics
and test how different strains respond
to new antibacterial substances and environmental changes.
Artificial intelligence (AI) sorts out massive gene sequencing data
of microorganisms,
identifies the functional genes inside microbial cells
and speeds up the research progress of new probiotic products.
The human immune system can recognize invading pathogens
and produce specific immune cells and antibodies
to block infections and repair damaged tissues,
but excessive immune reactions may mistakenly attack healthy body cells.
In-depth research on microbes and immune mechanisms
promotes the development of vaccines and targeted therapies,
helps people form scientific health habits
and maintains the long-term stability of human internal ecological balance.
二、完整译文
微生物科学研究细菌、真菌与病毒等
人类肉眼无法直接观测的微小生命体，
探究它们与人体以及周边环境之间
复杂的相互作用关系。
数以万亿计的微生物定居在人体皮肤、口腔
以及肠道内部，形成独特的微生物群落，
参与食物消化、营养吸收，
并且调控机体免疫应答。
平衡的肠道微生物群能够抑制有害致病微生物的过度繁殖；
而微生物菌群失衡，
则有可能诱发炎症反应，
提升多种慢性疾病的发病风险。
科研人员在受控实验室中培养微生物样本，
分析它们的生物学特征，
测试不同菌株面对新型抗菌物质
以及环境变化时的反应。
人工智能AI整理海量微生物基因测序数据，
识别微生物细胞内部的功能基因，
加快新型益生菌产品的研发进程。
人体免疫系统能够识别入侵的病原体，
产生特异性免疫细胞与抗体，
抵御感染并修复受损组织；
但过度的免疫反应，有可能错误攻击健康的人体细胞。
针对微生物与免疫机制的深度研究，
推动疫苗与靶向治疗手段的发展，
帮助人们建立科学的健康习惯，
维持人体内部生态的长期稳定。
三、核心重点词汇短语
1. microbial
/maɪˈkrəʊbiəl/
微生物的
形容词(adj.)
2. intestinal
/ɪnˈtestɪnl/
肠道的
形容词(adj.)
3. pathogenic
/ˌpæθəˈdʒenɪk/
致病的
形容词(adj.)
4. inflammatory
/ɪnˈflæmətri/
炎症性的
形容词(adj.)
5. antibody
/ˈæntibɒdi/
抗体
名词(n.)
6. probiotic
/ˌprəʊbaɪˈɒtɪk/
益生菌
名词(n.)
7. sequence
/ˈsiːkwəns/
测序；序列
动词(v.) /名词(n.)
8. vaccine
/ˈvæksiːn/
疫苗
名词(n.)
四、长难句分层拆解
原句1
Microbial science focuses on the study of tiny organisms
such as bacteria, fungi and viruses
that cannot be directly observed by human naked eyes,
and explores their complex interactions
with the human body and surrounding environments.
句子主干：
Microbial science focuses on the study and explores interactions
分层修饰成分：
tiny
前置定语，修饰生命体
such as bacteria, fungi and viruses
同位语，列举微生物种类
that cannot be directly observed by human naked eyes
定语从句，修饰微小生命体
complex
前置定语，修饰相互作用
with the human body and surrounding environments
后置介词定语，说明作用对象
原句2
Trillions of microbes settle on human skin, oral cavity
and intestinal tracts, forming a unique microbial community
that participates in food digestion, nutrient absorption
and the regulation of the body’s immune responses.
句子主干：
Microbes settle on body parts,
forming a community that participates in digestion,
absorption and regulation
分层修饰成分：
Trillions of
定语，修饰微生物
human skin, oral cavity and intestinal tracts
地点状语，微生物定居位置
unique microbial
多层前置定语，修饰微生物群落
that引导定语从句，描述群落功能
food、nutrient、the body’s immune responses
多层前置定语，分别修饰消化、吸收、免疫应答调控
原句3
AI sorts out massive gene sequencing data
of microorganisms,
identifies the functional genes inside microbial cells
and speeds up the research progress of new probiotic products.
句子主干：
Artificial intelligence (AI) sorts out data,
identifies genes and speeds up progress
分层修饰成分：
massive gene sequencing
多层前置定语，修饰测序数据
of microorganisms
后置介词定语，限定数据来源
functional
前置定语，修饰基因
inside microbial cells
后置介词定语，限定基因位置
the research progress
多层前置定语，修饰研发进展
of new probiotic products
后置介词定语，限定研发对象
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