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B2级单词表 - 科学世界

在这里,您将学习一些关于科学世界的英语单词,例如“生物化学”、“生物的”、“细菌”等,为B2学习者准备。

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CEFR B2 Vocabulary
biochemistry
biochemistry
[名词]

a field of science that deals with the chemistry of organisms

生物化学

生物化学

Ex: Enzymes, which are proteins that speed up chemical reactions, are a key focus in biochemistry. 
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biological
biological
[形容词]

relating to the science that explores living organisms and their functions

生物的

生物的

Ex: Biological research investigates the genetic makeup of different species. 
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artificial
artificial
[形容词]

made by humans rather than occurring naturally in nature

人工的, 合成的

人工的, 合成的

Ex: Artificial sweeteners are used as sugar substitutes in many food and beverage products. 
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bacteria
bacteria
[名词]

(microbiology) single-celled microorganisms that can be found in various environments, including soil, water, and living organisms, and can be beneficial, harmful, or neutral

细菌

细菌

Ex: Bacteria play a crucial role in the decomposition of organic matter in the ecosystem. 
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being
being
[名词]

a living thing, such as a tree, human, animal, etc.

生物, 存在

生物, 存在

Ex: Every being plays a role in its ecosystem, contributing to the balance of nature. 
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cycle
cycle
[名词]

(biology) a series of transformations and events that happen in an animal or plant's lifetime

周期, 循环

周期, 循环

Ex: The water cycle describes how water moves through the environment in different forms. 
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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: DNA, or deoxyribonucleic acid, contains the genetic instructions for living organisms. 
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genetics
genetics
[名词]

the branch of biology that deals with how individual features and different characteristics are passed through genes

遗传学

遗传学

Ex: Understanding genetics helps scientists explore how diseases are passed through families. 
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to evolve
to evolve
[动词]

(biology) to change gradually and over generations into forms that are better adapted to the environment and fitter to survive

进化, 演变

进化, 演变

Ex: Over millions of years, horses have evolved from small, multi-toed ancestors to the single-toed, large-bodied animals we see today. 
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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: Water is a compound made of hydrogen and oxygen atoms. 
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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: Oxygen is an essential element for human respiration. 
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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: All objects, whether solid, liquid, or gas, are made of matter. 
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mineral
mineral
[名词]

a solid, naturally occurring substance with a specific chemical composition, typically found in the earth's crust, such as gold, copper, etc.

矿物

矿物

Ex: Quartz is a common mineral found in many types of rocks. 
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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: Molecules are made up of two or more atoms bonded together. 
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solution
solution
[名词]

a mixture of different liquids

溶液, 混合物

溶液, 混合物

Ex: Many cleaning products are solutions that mix different liquids for better effectiveness. 
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boiling point

the temperature at which a liquid starts boiling

沸点, 沸腾温度

沸点, 沸腾温度

Ex: Water has a boiling point of 100 degrees Celsius at sea level. 
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freezing point

the temperature at which liquid becomes solid

冰点, 凝固温度

冰点, 凝固温度

Ex: The freezing point of ethanol is lower than that of water. 
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radiation
radiation
[名词]

energy transmitted through space or matter in the form of waves or particles

辐射, 放射

辐射, 放射

Ex: The sun emits radiation that warms the Earth. 
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to advance
to advance
[动词]

to help something progress or succeed

推进, 促进

推进, 促进

Ex: The student diligently studied each day to advance their understanding of the subject. 
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to absorb
to absorb
[动词]

to take in energy, liquid, etc.

吸收, 摄取

吸收, 摄取

Ex: Plants absorb sunlight to produce energy through photosynthesis. 
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to activate
to activate
[动词]

(physics) to make a substance radioactive

激活, 使具有放射性

激活, 使具有放射性

Ex: Scientists can activate certain materials to make them radioactive for research purposes. 
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to generate
to generate
[动词]

to produce energy, such as heat, electricity, etc.

产生, 发电

产生, 发电

Ex: The solar panels on the roof generate electricity for the entire house. 
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industry
industry
[名词]

the manufacture of goods using raw materials, particularly in factories

工业

工业

Ex: The automotive industry is a major contributor to the national economy. 
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civil engineering

a field of engineering that deals with the design, construction, and repair of buildings, bridges, roads, etc.

土木工程, 建筑工程

土木工程, 建筑工程

Ex: Civil engineering plays a crucial role in urban development and city planning. 
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sensor
sensor
[名词]

a machine or device that detects any changes in the environment and sends the information to other electronic devices

传感器, 探测器

传感器, 探测器

Ex: The temperature sensor measures the heat in the environment to adjust the heating system. 
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circuit
circuit
[名词]

the complete circle through which an electric current flows, typically consists of the source of electric energy

电路

电路

Ex: The electrical circuit is designed to power the light bulb when the switch is turned on. 
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field
field
[名词]

(physics) the space or area within which the effect of a particular force exists

场, 力场

场, 力场

Ex: The gravitational field of Earth pulls objects toward its center. 
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wire
wire
[名词]

a long and thin piece of metal that carries an electric current

电线, 电缆

电线, 电缆

Ex: The electrician installed new wire to ensure the lights functioned properly. 
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live wire
live wire
[名词]

a wire that carries electrical current and has the potential to cause electric shock or injury if touched

带电电线, 通电导线

带电电线, 通电导线

Ex: Be cautious when working near live wires to avoid electrical shocks. 
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motion
motion
[名词]

a natural process involving a change in position or orientation of an object

运动, 移动

运动, 移动

Ex: The planet's motion around the sun is elliptical. 
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to monitor
to monitor
[动词]

to carefully check the quality, activity, or changes of something or someone for a period of time

监控,监测

监控,监测

Ex: Parents often need to monitor their children's online activities to ensure a safe digital environment. 
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motor
motor
[名词]

a machine that converts any form of energy into mechanical energy

马达, 发动机

马达, 发动机

Ex: The electric motor powered the conveyor belt in the factory. 
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rate
rate
[名词]

the number of times something changes or happens during a specific period of time

率, 犯罪率

率, 犯罪率

Ex: The crime rate in the city has decreased significantly over the past year. 
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weathering
weathering
[名词]

the effect of sunlight, wind, or rain, on rocks that makes them change color or appearance

风化, 侵蚀

风化, 侵蚀

Ex: The old building showed signs of weathering, with crumbling bricks and faded paint. 
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impervious
impervious
[形容词]

preventing a substance such as liquid from passing through

不透的, 防水的

不透的, 防水的

Ex: The impervious seal on the container kept the chemicals inside safe from contamination. 
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