B2 verb 中性

molecule

/ˈmɒlɪkjuːl/

A molecule is the smallest unit of a chemical substance that can exist independently while retaining its chemical properties. It consists of two or more atoms held together by chemical bonds.

例句

3 / 5
1

A single water molecule consists of two hydrogen atoms and one oxygen atom.

One tiny unit of water is made of two hydrogens and one oxygen.

2

The researchers are studying how the molecule reacts under high pressure.

The scientists are examining the reaction of the chemical unit in high-pressure conditions.

3

There isn't a molecule of truth in what he just said.

There is absolutely no truth at all in his statement.

词族

名词
molecule
副词
molecularly
形容词
molecular
相关
molecularity
💡

记忆技巧

Think of 'Mole' (the small animal) and 'cule' (sounds like 'cool'). It's a 'cool small' piece of matter. Also, 'molecular' rhymes with 'particular'.

快速测验

The scientist explained that a _____ of water consists of two hydrogen atoms and one oxygen atom.

正确!

正确答案是: molecule

例句

1

A single water molecule consists of two hydrogen atoms and one oxygen atom.

everyday

One tiny unit of water is made of two hydrogens and one oxygen.

2

The researchers are studying how the molecule reacts under high pressure.

formal

The scientists are examining the reaction of the chemical unit in high-pressure conditions.

3

There isn't a molecule of truth in what he just said.

informal

There is absolutely no truth at all in his statement.

4

Organic molecules are the fundamental building blocks of all known life forms.

academic

Carbon-based chemical units are the basic components of all life.

5

Our laboratory has patented a new molecule that could revolutionize skincare.

business

Our company has legally protected a new chemical compound for better skin products.

词族

名词
molecule
副词
molecularly
形容词
molecular
相关
molecularity

常见搭配

organic molecule a molecule containing carbon
water molecule the chemical unit H2O
complex molecule a large and intricate chemical structure
DNA molecule the molecule carrying genetic instructions
break down molecules to separate a chemical unit into smaller parts

常用短语

at a molecular level

examining things at the scale of molecules

every molecule of one's being

with one's entire self or soul

not a molecule of

none at all; not a single bit

容易混淆的词

molecule vs atom

An atom is the smallest unit of an element, while a molecule is a group of atoms bonded together.

molecule vs cell

A cell is the basic biological unit of life, which is much larger and contains trillions of molecules.

📝

使用说明

Molecule is primarily a scientific term used in chemistry and physics. However, it is frequently used in common English as a hyperbolic way to say 'a very small amount' of something abstract, like 'truth' or 'common sense'.

⚠️

常见错误

Learners often use 'molecule' when they mean 'atom'. Remember that a molecule is usually a combination of atoms (like H2 or H2O).

💡

记忆技巧

Think of 'Mole' (the small animal) and 'cule' (sounds like 'cool'). It's a 'cool small' piece of matter. Also, 'molecular' rhymes with 'particular'.

📖

词源

From the French word 'molécule', which comes from the Latin 'moles' (mass) combined with a diminutive suffix, literally meaning 'a small mass'.

语法模式

Countable noun Plural form: molecules Often followed by the preposition 'of' + substance

快速测验

The scientist explained that a _____ of water consists of two hydrogen atoms and one oxygen atom.

正确!

正确答案是: molecule

相关词

pale

A1

Describes something that has very little color or is much lighter than usual. It is often used to describe a person's face when they are ill or a color that is mixed with a lot of white.

lung

A1

The lungs are two organs inside your chest that you use to breathe. They bring oxygen into your body and remove carbon dioxide when you breathe out.

tropical

A1

Relating to the hot regions of the Earth near the equator. It describes weather that is very warm and wet, or plants and animals that come from these areas.

trader

A1

A trader is a person whose job is to buy and sell goods, stocks, or other items for profit. They can work in a small local market or on large international financial exchanges.

indoor

A1

Describes something that is located, happens, or is used inside a building rather than outside. It is an adjective used before a noun to talk about activities or objects protected from the weather.

threshold

A1

A threshold is the physical area at the bottom of a doorway that you step over to enter a room or building. It also refers to the level or point at which something starts to happen or changes.

tribute

A1

A tribute is something that you say, do, or give to show your respect and admiration for someone. It is often a public act used to honor a person's life, work, or memory.

elder

A1

Used to describe a person who is older than another, especially within a family. It is also used to refer to people who have a high status or more experience because of their age.

russian

A1

Relating to Russia, its people, its language, or its culture. It describes things that come from or are connected to the largest country in the world.

southeastern

A1

Located in or coming from the direction between south and east. It describes a place, a region, or a wind that is in the corner between the bottom and the right on a map.

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