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托福必备词汇 - 生物学、物理学和化学

在这里,你将学习一些关于生物学、物理学和化学的英语单词,如“生物”、“物质”、“元素”等,这些是托福考试所需要的。

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Essential Words Needed for TOEFL
biology
biology
[名词]

the scientific study of living organisms; the science that studies living organisms

生物学, 生命科学

生物学, 生命科学

Ex: The biology textbook covered topics ranging from cell structure to ecosystem dynamics. 

生物学教科书涵盖了从细胞结构到生态系统动力学的主题。

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reproduction
reproduction
[名词]

the biological process by which organisms produce new individuals, either sexually through gamete fusion or asexually by mechanisms such as budding, fission, or spore formation

生殖, 繁殖

生殖, 繁殖

Ex: The plant reproduces both sexually by seed and asexually through runners that form new, genetically identical clones. 

该植物通过种子有性繁殖,也通过匍匐茎无性繁殖,形成新的、遗传相同的克隆体。

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metabolism
metabolism
[名词]

the chemical processes through which food is changed into energy for the body to use

新陈代谢, 代谢作用

新陈代谢, 代谢作用

Ex: Regular exercise can boost metabolism, helping to burn calories more efficiently. 

定期锻炼可以促进新陈代谢,帮助更有效地燃烧卡路里。

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organism
organism
[名词]

a living thing such as a plant, animal, etc., especially a very small one that lives on its own

生物, 有机体

生物, 有机体

Ex: Microscopic organisms like bacteria play crucial roles in nutrient cycling and decomposition. 

像细菌这样的微观生物在营养循环和分解中起着至关重要的作用。

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life cycle
life cycle
[名词]

all the different stages of grow and development of a living organism

生命周期, 生物周期

生命周期, 生物周期

Ex: She studied the life cycle of frogs for her biology class. 

她为生物课研究了青蛙的生命周期。

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molecule
molecule
[名词]

the smallest structure of a substance consisting of a group of atoms

分子

分子

Ex: The structure of a molecule determines its properties and behavior. 

分子的结构决定了它的性质和行为。

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molecular
molecular
[形容词]

consisting of or relating to molecules, which are groups of atoms bonded together

分子的, 与分子有关的

分子的, 与分子有关的

Ex: Molecular modeling techniques are employed to visualize and study the structure of molecules. 

分子建模技术被用来可视化和研究分子的结构。

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matter
matter
[名词]

a physical substance that occupies space and exists in every material in the universe

物质, 材料

物质, 材料

Ex: The study of matter is fundamental to fields like physics and chemistry. 

对物质的研究是物理学和化学等领域的基础。

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chemistry
chemistry
[名词]

the branch of science that is concerned with studying the structure of substances and the way that they change or combine with each other

化学, 物质科学

化学, 物质科学

Ex: The chemistry lab was filled with glass beakers, test tubes, and mysterious substances. 

化学实验室里摆满了玻璃烧杯、试管和神秘物质。

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element
element
[名词]

a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties

元素, 成分

元素, 成分

Ex: Gold is a precious metal and chemical element with the symbol Au. 

黄金是一种贵金属和化学元素,符号为Au。

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evolution
evolution
[名词]

(biology) the slow and gradual development of living things throughout the history of the earth

进化

进化

Ex: Genetic mutations play a significant role in driving evolutionary changes within populations. 

基因突变在推动种群内的进化变化中起着重要作用。

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property
property
[名词]

a feature or quality of something

属性, 特性

属性, 特性

Ex: Elasticity is a material property that measures its ability to return to its original shape after being deformed. 

弹性是衡量材料在变形后恢复其原始形状能力的特性。

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photosynthesis

a process in green plants during which the plant synthesizes using water and carbon dioxide

光合作用

光合作用

Ex: Without photosynthesis, most life on Earth would cease to exist. 

没有光合作用,地球上大多数生命将不复存在。

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DNA
DNA
[名词]

(biochemistry) a chemical substance that carries the genetic information, which is present in every cell and some viruses

DNA, 脱氧核糖核酸

DNA, 脱氧核糖核酸

Ex: Each DNA molecule is made up of two strands that form a double helix shape. 

每个DNA分子由两条链组成,形成双螺旋形状。

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gene
gene
[名词]

(genetics) a basic unit of heredity and a sequence of nucleotides in DNA that is located on a chromosome in a cell and controls a particular quality

基因, 遗传单位

基因, 遗传单位

Ex: Scientists study the genes to understand how diseases are passed down. 

科学家研究基因以了解疾病是如何遗传的。

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to react
to react
[动词]

(physics) to be subject to physical or chemical change

反应, 相互作用

反应, 相互作用

Ex: During cellular respiration, glucose and oxygen react to produce carbon dioxide, water, and energy. 

在细胞呼吸过程中,葡萄糖和氧气反应产生二氧化碳、水和能量。

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fiber
fiber
[名词]

any strand of muscle or nervous tissues

纤维, 肌纤维

纤维, 肌纤维

Ex: Nerve fibers transmit electrical signals from one part of the body to another, facilitating communication within the nervous system. 
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particle
particle
[名词]

(physics) any of the smallest units that energy or matter consists of, such as electrons, atoms, molecules, etc.

粒子

粒子

Ex: In chemistry, atoms are composed of protons, neutrons, and electrons, which are subatomic particles. 

在化学中,原子由质子、中子和电子组成,它们是亚原子粒子。

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compound
compound
[名词]

(chemistry) a substance that its molecules consist of two or more elements that are held together by a chemical bond

化合物, 混合物

化合物, 混合物

Ex: Compounds can have different properties than the elements they contain. 

化合物可以具有与它们所含元素不同的性质。

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bond
bond
[名词]

a link that holds atoms or ions together in any molecule or crystal

键, 联系

键, 联系

Ex: Ionic bonds are formed when electrons are transferred from one atom to another, resulting in the attraction between oppositely charged ions. 

离子键是在电子从一个原子转移到另一个原子时形成的,导致带相反电荷的离子之间产生吸引力。

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atomic
atomic
[形容词]

related to atoms, the smallest units of matter, including their structure, properties, and interactions

原子的

原子的

Ex: Atomic number indicates the number of protons in an atom's nucleus, determining its chemical identity. 

原子序数表示原子核中的质子数,决定其化学特性。

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nerve
nerve
[名词]

each of a group of long thread-like structures in the body that carry messages between the brain and other parts of the body, sensing things is a result of this process

神经, 神经纤维

神经, 神经纤维

Ex: She damaged a nerve in her wrist from repetitive typing at work. 
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parasite
parasite
[名词]

(biology) a small organism that lives on or inside another organism, called a host, and is dependent on it for nutrition and growth

寄生虫, 寄生生物

寄生虫, 寄生生物

Ex: Tapeworms are parasites that can inhabit the intestines of animals, absorbing nutrients from their hosts. 

寄生虫如绦虫可以栖息在动物的肠道中,从宿主那里吸收营养。

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instinct
instinct
[名词]

a natural reaction or behavior that occurs automatically, without conscious thought or reasoning

本能, 冲动

本能, 冲动

Ex: When threatened, the rabbit relied on its instinct to flee and find cover in the bushes. 

当受到威胁时,兔子依靠它的本能逃跑并躲在灌木丛中。

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acid
acid
[名词]

a water-soluble chemical substance that contains Hydrogen and has a sour taste or corrosive feature with a PH less than 7

酸, 酸性物质

酸, 酸性物质

Ex: Hydrochloric acid is a strong acid found in stomach fluid that aids in digestion. 

盐酸是一种在胃液中发现的强酸,有助于消化。

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electron
electron
[名词]

a small particle in an atom with negative charge

电子, 带负电的原子内小粒子

电子, 带负电的原子内小粒子

Ex: In photosynthesis, plants use sunlight to excite electrons in chlorophyll. 

在光合作用中,植物利用阳光激发叶绿素中的电子。

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vapor
vapor
[名词]

extremely small drops of liquid in the air, resulted from the heating of the liquid

蒸汽,  雾

蒸汽, 雾

Ex: When the kettle boiled, steam billowed out, filling the kitchen with vapor. 
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glucose
glucose
[名词]

a basic kind of sugar that is a component of carbohydrates and provides energy for many living organisms

葡萄糖

葡萄糖

Ex: The brain relies almost entirely on glucose to function properly. 
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carbon
carbon
[名词]

a nonmetal element that can be found in all organic compounds and living things

碳, 炭

碳, 炭

Ex: Carbon forms the basis of organic chemistry, being present in all living organisms. 

碳构成了有机化学的基础,存在于所有生物体中。

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calcium
calcium
[名词]

a soft silver-white metal that is an important element in bones and teeth

钙

钙

Ex: Your body needs vitamin D to absorb calcium properly. 
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nitrogen
nitrogen
[名词]

one the most common elements in Earth's atmosphere

氮

氮

Ex: Liquid nitrogen is extremely cold and used to preserve biological samples. 
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to dissolve
to dissolve
[动词]

(of a solid) to become one with a liquid

溶解, 融化

溶解, 融化

Ex: The effervescent tablet is currently dissolving in a glass of water. 

泡腾片目前正在一杯水中溶解。

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