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B1 noun, adjective #9 よく出る 14分で読める

plastic

上位9

練習する例文メモとヒント plastic 30秒で

解説 plastic in your Level:

At the A1 level, 'plastic' is a very simple and common word that you will learn early on. It is used to describe a material that many everyday things are made of. Think about the things in your house or school. A plastic bottle, a plastic toy, or a plastic bag. At this level, you only need to know that plastic is a man-made material, not like wood or metal. It is usually light and can be many different colors. You might hear a teacher say, 'Put your plastic bottle in the bin.' You will also see the word on signs for recycling. It is an important word for basic shopping and talking about objects around you. You don't need to worry about the science of how it is made, just that it is a common material for many cheap and useful items. It is an adjective when it describes something (a plastic cup) and a noun when it is the thing itself (made of plastic).

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At the A2 level, you start to use 'plastic' in more specific ways. You might talk about the environment and how plastic can be bad for the earth. You will learn phrases like 'plastic waste' or 'plastic pollution.' You also begin to understand that 'plastic' can be used to talk about money. If you go to a shop and don't have cash, you might use your 'plastic' (your credit card). This is a very common way people speak in English-speaking countries. You can also describe more complex objects, like 'plastic parts' in a car or 'plastic packaging' on your food. You should be able to distinguish between plastic and other materials like paper, glass, and metal when describing things. You might also encounter the word in the context of 'plastic surgery,' though you only need to know it is a type of medical operation to change how someone looks.

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At the B1 level, you should be comfortable using 'plastic' in both its literal and more abstract senses. You can participate in discussions about the pros and cons of plastic. For example, you can explain that plastic is useful because it is cheap and durable, but it is also a problem because it doesn't break down easily in nature. You will learn about 'single-use plastics' and why many people want to ban them. You should also understand the figurative use of 'plastic' to mean 'fake' or 'not real.' If someone says a person has a 'plastic personality,' you should understand they mean the person is not being honest or genuine. You will also see the word in more technical contexts, like 'plastic deformation' in a science class, meaning a material has changed shape and won't go back. Your vocabulary will expand to include related words like 'recyclable,' 'synthetic,' and 'environmentally friendly.'

At the B2 level, you are expected to use 'plastic' with more precision and nuance. You can discuss the chemical nature of plastics as 'polymers' and understand the difference between various types, such as 'thermoplastics' and 'thermosets.' You can engage in complex debates about the 'plastic economy' and the challenges of recycling. You should be able to use the word in professional contexts, such as describing the 'plasticity' of a business model or a person's ability to adapt to new situations. The metaphorical use of 'plastic' to describe something artificial or mass-produced should be part of your active vocabulary. You might read articles about 'microplastics' in the food chain and be able to summarize the scientific concerns. You understand that 'plastic' is not just a material but a symbol of modern industrial life, with all its benefits and drawbacks. You can also use the word in more formal writing, such as an essay on environmental policy.

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At the C1 level, you have a deep and sophisticated understanding of the word 'plastic.' You can use it to discuss complex philosophical or sociological concepts, such as the 'plasticity of identity' or the 'plastic nature of memory.' You understand the historical significance of the 'Plastic Age' and how it transformed global trade and consumer culture. You can use technical terms like 'monomers,' 'polymerization,' and 'biodegradability' with ease. In a business or medical context, you can discuss 'neuroplasticity' in detail, explaining how the brain's physical structure changes in response to learning and experience. You are sensitive to the subtle connotations of the word, knowing when 'plastic' implies a negative sense of 'cheapness' versus a positive sense of 'adaptability.' Your use of the word is precise, and you can switch between its literal, technical, and metaphorical meanings effortlessly in both speech and writing.

無料登録して完全な解説を読む

At the C2 level, your mastery of 'plastic' is complete. You can appreciate and use the word in its most literary and academic forms. You might analyze the 'plasticity' of language itself—how words change meaning over time. You can engage in high-level scientific discourse about the molecular structure of advanced polymers or the ecological impact of 'nanoplastics.' You understand the deep cultural critiques of 'plastic society' and can discuss the works of thinkers who have used plastic as a metaphor for the alienation of modern life. You can use the word in complex idiomatic expressions and understand its role in various dialects of English. Whether you are writing a technical paper on material science or a poetic essay on the fluid nature of human experience, you use 'plastic' and its derivatives with absolute confidence and stylistic flair. You see the word as a bridge between the physical world of chemistry and the abstract world of human thought.

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練習する例文メモとヒント

plastic 30秒で

A versatile synthetic material made from polymers, used in almost every industry for packaging, construction, and consumer goods due to its durability.
The term also refers to the physical property of being moldable or adaptable, used in science (plasticity) and medicine (plastic surgery).
In modern slang, it often refers to credit cards or describes something that is artificial, fake, or lacking in genuine quality.
Environmental concerns regarding its non-biodegradable nature have made 'plastic' a central word in discussions about pollution and sustainability.

The word plastic is a multifaceted term that serves as both a noun and an adjective, deeply embedded in the fabric of modern industrial society. As a noun, it refers to a wide range of synthetic or semi-synthetic organic solids that are moldable. These materials are typically high molecular mass polymers and may contain other substances to improve performance or reduce costs. The term is derived from the Greek word 'plastikos,' which means 'fit for molding.' This etymological root perfectly describes the primary characteristic of the material: its ability to be shaped into almost any form during its manufacturing process. People use this word daily to describe everything from the packaging of their food to the components of their electronic devices. In a broader sense, 'plastic' has become synonymous with the modern age of convenience, but it also carries significant weight in discussions regarding environmental sustainability and waste management.

Material Science: In the realm of science, plastic refers to polymers that exhibit plasticity, allowing them to be deformed without breaking.

The engineer decided to use a high-density plastic for the new automotive parts to reduce the overall weight of the vehicle.

As an adjective, 'plastic' describes something made of this material, such as a 'plastic bottle' or a 'plastic chair.' However, it also has a metaphorical application. When describing a person's personality or a situation, it can imply a lack of genuineness or a sense of being artificial. For instance, a 'plastic smile' is one that looks forced or insincere. This duality of meaning—one technical and one critical—makes the word particularly versatile in English. Furthermore, in the medical field, 'plastic surgery' uses the original meaning of 'molding' to describe the reconstruction or alteration of the human body. This highlights that the word is not just about the material itself, but about the process of transformation and shaping.

Environmental Context: The term is frequently used in environmental activism to highlight the crisis of non-biodegradable waste in our oceans.

Many countries are now implementing bans on single-use plastic items like straws and shopping bags.

The historical development of plastic is equally fascinating. The first fully synthetic plastic was Bakelite, invented in New York in 1907 by Leo Baekeland. Before this, humans relied on natural polymers like rubber and silk. The invention of synthetic plastics revolutionized manufacturing because they were cheap to produce, durable, and could be mass-produced. This led to a 'plastic explosion' in the mid-20th century, where plastic replaced wood, metal, and glass in many applications. Today, we distinguish between different types of plastics using resin identification codes, which help in the recycling process. Understanding these nuances is essential for anyone looking to navigate the complexities of modern consumerism and environmental responsibility.

Economic Impact: The plastic industry is a multi-billion dollar sector that employs millions of people globally in production and design.

The transition to bio-based plastic is seen as a necessary step for the future of the packaging industry.

He felt that the celebrity's public persona was far too plastic and lacked any real depth or emotion.

The surgeon explained that plastic surgery can be reconstructive, helping patients recover from traumatic injuries.

Using the word plastic correctly requires an understanding of its grammatical role as either a noun or an adjective. When used as a noun, it typically refers to the material itself or products made from it. For example, 'The toy is made of plastic.' In this case, 'plastic' is an uncountable noun when referring to the substance generally, but it can be countable when referring to specific types or pieces of the material in a technical context. For instance, 'There are many different plastics used in this computer.' This refers to the various chemical compositions of the polymers involved. When you are speaking about credit cards, 'plastic' is often used as a collective noun: 'I don't have any cash, so I'll have to use my plastic.'

Noun Usage: Used to identify the substance or objects made from it. Example: 'The ocean is unfortunately filled with discarded plastic.'

We need to find a way to recycle this plastic more efficiently to protect the environment.

As an adjective, 'plastic' modifies a noun to describe its composition or its quality of being moldable. 'A plastic bag' is a bag made of plastic. 'Plastic explosives' are explosives that are soft and can be molded by hand. This adjective form is very common in daily conversation. However, the figurative use of 'plastic' as an adjective is where many learners can add depth to their vocabulary. Describing something as 'plastic' can mean it is artificial, fake, or lacking in soul. For example, 'The new housing development felt very plastic, with every house looking exactly the same.' This usage conveys a sense of sterile, mass-produced uniformity that feels unnatural.

Adjective Usage: Modifies nouns to indicate material or artificiality. Example: 'She gave him a plastic smile before turning away.'

The plastic nature of the clay allowed the artist to sculpt intricate details with ease.

In scientific and technical writing, 'plastic' is often used to describe the property of 'plasticity.' This is the ability of a material to undergo permanent deformation under stress. You might see sentences like, 'The metal reached its plastic limit,' meaning it will no longer return to its original shape once the force is removed. This is distinct from 'elastic,' which describes a material that returns to its original shape. Understanding this distinction is vital for students of physics or engineering. In the context of biology, 'neuroplasticity' refers to the brain's ability to reorganize itself by forming new neural connections throughout life. Here, 'plastic' describes the brain's adaptable and moldable nature, which is a very positive and dynamic concept.

Technical Context: Describes the physical property of being able to be shaped or molded permanently.

The plastic deformation of the earth's crust occurs over millions of years due to tectonic pressure.

Please put all your plastic containers in the blue recycling bin provided by the city.

The interior of the car was covered in cheap plastic that rattled whenever we drove over a bump.

You will encounter the word plastic in a vast array of real-world environments, ranging from mundane daily interactions to high-level scientific and political discourse. In the grocery store, you might be asked, 'Would you like a plastic bag or a paper bag?' This is perhaps the most common place the word is used as a simple descriptor of a material. In a financial context, at a bank or a restaurant, you might hear someone say, 'We only accept plastic here,' which is a shorthand way of saying they only accept credit or debit cards. This usage highlights how the material has become a metonym for the entire system of non-cash transactions. It is a word that bridges the gap between the physical object and the abstract economic function it performs.

Everyday Commerce: Used to describe packaging or payment methods in retail and service industries.

The cashier asked if I wanted to pay with cash or plastic before ringing up my groceries.

In the news and media, 'plastic' is frequently heard in the context of environmental crises. Phrases like 'plastic pollution,' 'microplastics,' and 'single-use plastics' are staples of modern journalism. You will hear scientists discussing the 'Great Pacific Garbage Patch,' a massive collection of plastic debris in the ocean, or politicians debating 'plastic taxes' designed to reduce waste. In these contexts, the word often carries a negative connotation, associated with ecological damage and the failure of human waste management systems. It is a central term in the global conversation about climate change and the 'Anthropocene'—the current geological age where human activity is the dominant influence on climate and the environment.

Environmental News: A key term in reports about ocean health, recycling rates, and legislative bans on waste.

The documentary highlighted the devastating effect that plastic waste has on marine life and coral reefs.

In the medical and scientific communities, the word is used with a much more technical and often positive meaning. 'Plastic surgery' is a major medical specialty, and 'neuroplasticity' is a groundbreaking concept in neuroscience. In these fields, 'plastic' refers to the ability to change, adapt, and be reshaped. You might hear a doctor talk about the 'plasticity of the brain' when discussing recovery from a stroke, or a surgeon discussing 'plastic reconstruction' after an accident. Here, the word represents hope and the incredible adaptability of the human body. Furthermore, in manufacturing and engineering, you will hear specific names of plastics like 'polyethylene,' 'polypropylene,' or 'PVC,' which are all types of plastic used for different industrial purposes.

Medical/Scientific: Refers to the moldability of tissue or the adaptability of the nervous system.

Recent studies in neuroplasticity show that the brain remains plastic and capable of learning well into old age.

The activist group organized a beach cleanup to remove plastic bottles and fishing nets from the shore.

The credit card company issued a new piece of plastic to replace the one that had expired.

One of the most frequent mistakes learners make with the word plastic is confusing it with other materials that have similar properties, such as 'rubber' or 'glass.' While rubber is elastic (it returns to its original shape), plastic is, by definition, 'plastic' (it retains its new shape after being molded). Using 'plastic' to describe a rubber band, for example, would be technically incorrect. Another common error is in the countability of the noun. When talking about the material in general, you should use it as an uncountable noun. Saying 'There is too many plastics in the ocean' is grammatically incorrect; it should be 'There is too much plastic in the ocean.' You only use the plural 'plastics' when referring to different chemical types of the material.

Countability Error: Confusing 'plastic' (the substance) with 'plastics' (types of the substance). Use 'much plastic' for general waste.

Incorrect: I need to buy a plastic of water. Correct: I need to buy a plastic bottle of water.

Another subtle mistake involves the figurative use of the word. While 'plastic' can mean 'fake' or 'artificial,' it is not always interchangeable with these words. 'Plastic' often carries a specific connotation of being mass-produced, sterile, or superficially perfect. Describing a lie as 'plastic' might sound strange; 'artificial' or 'fake' would be better. However, describing a person's insincere personality as 'plastic' is a well-understood idiom. Learners should also be careful with the term 'plastic surgery.' Some mistakenly think it involves putting plastic into the body. While implants can be made of polymers, the name actually comes from the Greek 'plastikos,' referring to the molding of flesh, not the material used.

Etymological Confusion: Thinking 'plastic surgery' always involves synthetic materials rather than the 'molding' of tissue.

Many people wrongly assume that plastic surgery is only for vanity, but it is often used for essential medical reconstruction.

In writing, avoid using 'plastic' as a verb. While you can 'plasticize' something (make it plastic or add plasticizers), you cannot 'plastic' a document. You might 'laminate' it with plastic, but the verb is 'laminate.' Similarly, in the context of credit cards, 'plastic' is a slang noun, not a verb. You don't 'plastic the bill'; you 'pay with plastic.' Finally, be aware of the difference between 'plastic' and 'thermoplastic.' A thermoplastic can be melted and reshaped multiple times, whereas a 'thermoset' plastic cannot. Using 'plastic' as a catch-all term in a technical report without specifying the type can lead to ambiguity and is considered a mistake in professional engineering contexts.

Verb Misuse: Using 'plastic' as a verb instead of 'laminate,' 'coat,' or 'mold.'

He tried to plasticize the material to make it more flexible for the industrial application.

The teacher corrected the student who called the rubber eraser a plastic eraser.

It is a mistake to think that all plastic can be recycled in the same way; different types require different processes.

When looking for synonyms or alternatives to plastic, it is important to consider the context, as the word has both material and qualitative meanings. In a scientific or industrial context, the most accurate synonym is often polymer. While all plastics are polymers, not all polymers are plastics (for example, DNA and proteins are natural polymers). Using 'polymer' sounds more technical and professional. Another related term is synthetic, which emphasizes that the material is man-made rather than occurring naturally. If you are talking about the property of being moldable, words like malleable, pliable, or ductile are excellent alternatives, each with its own specific nuance.

Polymer vs Plastic: 'Polymer' is the chemical term for the long chains of molecules, while 'plastic' is the common name for the resulting material.

The laboratory is developing a new biodegradable polymer to replace traditional petroleum-based plastics.

In figurative use, where 'plastic' means fake or artificial, you have several strong alternatives. Artificial is a neutral term for something not natural. Synthetic can also be used figuratively to mean something that feels manufactured rather than organic. Superficial is a great word for describing a person who only cares about appearances, similar to the 'plastic' personality. If you want to be more critical, insincere or phony are powerful choices. For example, instead of saying someone has a 'plastic smile,' you could say they have a 'forced' or 'contrived' smile. These alternatives allow for more precise emotional expression.

Malleable vs Plastic: 'Malleable' usually refers to metals that can be hammered into sheets, while 'plastic' refers to materials that can be molded into 3D shapes.

The artist found the wax to be highly pliable, allowing for constant adjustments to the sculpture.

Finally, when discussing the environmental impact, you might use terms like non-biodegradable or petrochemical-based. These terms provide more specific information about why plastic is a problem. On the flip side, alternatives like bioplastic or compostable material are used to describe newer, more eco-friendly versions of plastic. In the world of finance, instead of 'plastic,' you might use 'electronic payment,' 'card payment,' or 'digital currency.' Each of these synonyms helps to refine your message and demonstrate a more sophisticated command of the English language across different domains of life.

Synthetic vs Natural: Use 'synthetic' when you want to emphasize that something is not made from natural, organic sources.

The company is moving away from synthetic fibers in favor of organic cotton and hemp.

His superficial charm was enough to fool most people, but those who knew him well saw through it.

The non-biodegradable nature of most plastics means they persist in the environment for centuries.

How Formal Is It?

フォーマル

ニュートラル

カジュアル

Child friendly

スラング

豆知識

The first fully synthetic plastic, Bakelite, was marketed as 'the material of a thousand uses' because of its incredible versatility.

発音ガイド

UK /ˈplæstɪk/

US /ˈplæstɪk/

PLAS-tic

韻が合う語

drastic elastic gymnastic fantastic bombastic sarcastic iconoclastic enthusiastic

よくある間違い

Pronouncing the 'a' like 'ah' (plah-stic).
Putting the stress on the second syllable (plas-TIC).
Pronouncing the 'c' like an 's' (plas-tis).
Making the 'i' sound like 'ee' (plas-teek).
Dropping the 's' sound (pla-tic).

難易度

読解 2/5

The word is very common in everyday texts and easy to recognize.

ライティング 3/5

Learners must be careful with countability and the difference between 'plastic' and 'plastics'.

スピーキング 2/5

The pronunciation is straightforward, and the word is used in many common phrases.

リスニング 2/5

It is a distinct-sounding word that is rarely confused with others in speech.

次に学ぶべきこと

前提知識

material bottle bag make money

次に学ぶ

polymer synthetic recycling environment malleable

上級

neuroplasticity monomer biodegradability petrochemical anthropocene

知っておくべき文法

Uncountable vs Countable Nouns

Use 'much plastic' for the material, but 'many plastics' for types of polymers.

Adjective Placement

In 'plastic water bottle,' 'plastic' is an adjective modifying 'water bottle'.

Compound Nouns

Words like 'plasticware' combine 'plastic' with another noun to create a new meaning.

Metonymy

Using 'plastic' to mean 'credit card' is a form of metonymy where the material represents the object.

Suffixes

Adding '-ity' to 'plastic' creates the abstract noun 'plasticity'.

無料登録して完全な解説を読む

レベル別の例文

I have a plastic bottle.

J'ai une bouteille en plastique.

Plastic is used as an adjective here.

The toy is made of plastic.

Le jouet est en plastique.

Plastic is used as a noun here.

Do you want a plastic bag?

Voulez-vous un sac en plastique ?

Common shopping question.

The chair is plastic.

La chaise est en plastique.

Describing the material.

Put the plastic in the bin.

Mettez le plastique dans la poubelle.

Plastic as a general noun for waste.

I like this plastic cup.

J'aime cette tasse en plastique.

Simple adjective use.

Is this plastic or glass?

Est-ce du plastique ou du verre ?

Asking about the material.

The pen is plastic.

Le stylo est en plastique.

Simple description.

We should recycle more plastic.

Nous devrions recycler plus de plastique.

Using 'more' with an uncountable noun.

He paid with plastic at the store.

Il a payé avec une carte au magasin.

Idiomatic use for credit cards.

There is too much plastic in the sea.

Il y a trop de plastique dans la mer.

Using 'too much' for uncountable nouns.

This plastic container is for food.

Ce récipient en plastique est pour la nourriture.

Specific use of plastic objects.

She bought a plastic rain coat.

Elle a acheté un imperméable en plastique.

Adjective describing clothing.

The computer has a plastic case.

L'ordinateur a un boîtier en plastique.

Describing parts of a machine.

Don't throw away that plastic spoon.

Ne jetez pas cette cuillère en plastique.

Imperative sentence.

Plastic is cheaper than wood.

Le plastique est moins cher que le bois.

Comparative sentence.

Single-use plastic is a major problem.

Le plastique à usage unique est un problème majeur.

Compound adjective 'single-use'.

She has a very plastic smile.

Elle a un sourire très artificiel.

Figurative use meaning fake.

The doctor specializes in plastic surgery.

Le médecin est spécialisé en chirurgie plastique.

Specific medical term.

This material is very plastic and easy to shape.

Ce matériau est très malléable et facile à façonner.

Adjective meaning moldable.

The government is banning plastic straws.

Le gouvernement interdit les pailles en plastique.

Present continuous for current actions.

I prefer using glass over plastic.

Je préfère utiliser du verre plutôt que du plastique.

Expressing preference.

The interior of the car feels a bit plastic.

L'intérieur de la voiture fait un peu plastique.

Adjective meaning cheap or artificial.

How can we reduce our plastic footprint?

Comment pouvons-nous réduire notre empreinte plastique ?

Metaphorical 'footprint'.

The plastic industry has grown rapidly since the 1950s.

L'industrie du plastique a connu une croissance rapide depuis les années 1950.

Present perfect for historical trends.

Microplastics have been found in the deepest parts of the ocean.

Des microplastiques ont été trouvés dans les parties les plus profondes de l'océan.

Passive voice with present perfect.

The material reached its plastic limit under the pressure.

Le matériau a atteint sa limite plastique sous la pression.

Technical scientific term.

His personality was so plastic that he changed for everyone he met.

Sa personnalité était si malléable qu'il changeait pour chaque personne qu'il rencontrait.

Metaphorical use for adaptability/falseness.

We need to transition to a circular plastic economy.

Nous devons passer à une économie circulaire du plastique.

Complex noun phrase.

The surgeon performed a plastic reconstruction of the hand.

Le chirurgien a effectué une reconstruction plastique de la main.

Formal medical terminology.

The sheer amount of plastic waste is overwhelming.

La quantité pure et simple de déchets plastiques est accablante.

Using 'sheer' for emphasis.

Biodegradable plastics are not always as eco-friendly as they seem.

Les plastiques biodégradables ne sont pas toujours aussi écologiques qu'ils le paraissent.

Comparative structure 'as...as'.

Neuroplasticity allows the brain to compensate for injury.

La neuroplasticité permet au cerveau de compenser les blessures.

Advanced scientific noun.

The movie critiques the plastic nature of modern celebrity culture.

Le film critique la nature artificielle de la culture moderne des célébrités.

Abstract metaphorical use.

The polymer's plastic properties are essential for its industrial use.

Les propriétés plastiques du polymère sont essentielles à son utilisation industrielle.

Possessive noun with technical adjective.

She spoke with a plastic eloquence that failed to move the audience.

Elle a parlé avec une éloquence artificielle qui n'a pas réussi à émouvoir le public.

Sophisticated metaphorical adjective.

The treaty aims to curb the global trade in plastic scrap.

Le traité vise à freiner le commerce mondial des déchets plastiques.

Formal diplomatic language.

The artist explored the plasticity of form in her latest sculpture.

L'artiste a exploré la plasticité de la forme dans sa dernière sculpture.

Artistic/philosophical terminology.

The pervasive use of plastic has defined the current geological epoch.

L'utilisation omniprésente du plastique a défini l'époque géologique actuelle.

Academic historical context.

The company was accused of greenwashing its plastic production.

L'entreprise a été accusée de 'greenwashing' sa production de plastique.

Modern corporate/environmental term.

The ontological plasticity of digital environments challenges our perception of reality.

La plasticité ontologique des environnements numériques défie notre perception de la réalité.

Highly abstract philosophical use.

The ubiquity of plastic is a testament to the triumph of synthetic chemistry.

L'ubiquité du plastique est un témoignage du triomphe de la chimie de synthèse.

Formal academic prose.

One must consider the plastic limits of the social contract in times of crisis.

Il faut considérer les limites malléables du contrat social en temps de crise.

Metaphorical use in political science.

The prose was marked by a certain plastic beauty, polished but ultimately hollow.

La prose était marquée par une certaine beauté artificielle, polie mais finalement creuse.

Literary criticism.

The researchers investigated the plastic response of the ecosystem to thermal stress.

Les chercheurs ont étudié la réponse adaptative de l'écosystème au stress thermique.

Advanced biological research term.

The architect utilized the inherent plasticity of concrete to create fluid, organic shapes.

L'architecte a utilisé la plasticité inhérente du béton pour créer des formes fluides et organiques.

Technical architectural description.

The dialectic between the natural and the plastic remains a central theme in modern art.

La dialectique entre le naturel et l'artificiel reste un thème central de l'art moderne.

Philosophical/artistic discourse.

The legislation seeks to internalize the externalities of plastic production.

La législation cherche à internaliser les externalités de la production de plastique.

Advanced economic/legal terminology.

よく使う組み合わせ

plastic bag

plastic bottle

plastic surgery

plastic pollution

plastic waste

single-use plastic

plastic container

plastic smile

pay with plastic

plastic deformation

よく使うフレーズ

Made of plastic

— Consisting of the synthetic material plastic. Used to describe physical objects.

The toy car is made of plastic.

Plastic wrap

— A thin, flexible plastic film used for covering food. Also called cling film.

Cover the bowl with plastic wrap before putting it in the fridge.

Plastic explosive

— A soft, hand-moldable explosive material used in demolition and military applications.

The demolition team used plastic explosives to bring down the old bridge.

Plastic arts

— Art forms that involve modeling or molding, such as sculpture and ceramics.

He studied the plastic arts at the university.

Plastic money

— A slang term for credit cards or debit cards.

Most people today rely on plastic money for their daily purchases.

Plastic fan

— A derogatory term for a sports fan who only supports a team when they are winning.

He's just a plastic fan who started supporting them after they won the cup.

Plastic soul

— A term used to describe white musicians performing soul music, often implying it is less authentic.

David Bowie famously referred to his mid-70s sound as 'plastic soul'.

Plastic surgeon

— A medical doctor who specializes in the reconstruction or alteration of the human body.

The plastic surgeon repaired the patient's facial injuries.

Plastic coating

— A layer of plastic applied to the surface of another material for protection or decoration.

The wire has a plastic coating to prevent electric shocks.

Plastic bin

— A container made of plastic used for storing waste or other items.

Please throw the paper into the blue plastic bin.

よく混同される語

plastic vs elastic

Elastic materials return to their shape; plastic materials stay in the new shape.

plastic vs rubber

Rubber is a specific type of elastic material, often natural, whereas plastic is usually synthetic.

plastic vs pliable

Pliable means easy to bend, but doesn't necessarily mean it's made of plastic or will stay bent.

慣用句と表現

"Fantastic plastic"

— A phrase used to describe the convenience and wonders of credit cards or plastic materials.

In the 1960s, people were amazed by the 'fantastic plastic' products available.

informal

"A plastic smile"

— A smile that is forced, insincere, or fake.

She had a plastic smile on her face throughout the entire meeting.

neutral

"Life in plastic"

— A reference to a life that is artificial, perfect, and perhaps superficial (often referencing Barbie).

The song 'Barbie Girl' famously says 'Life in plastic, it's fantastic.'

informal

"Plastic people"

— People who are perceived as being fake, superficial, or lacking in genuine character.

He felt out of place at the party, surrounded by plastic people.

informal

"To be plastic"

— To be fake or artificial in one's behavior or appearance.

Stop being so plastic and just tell me what you really think.

informal

"Plastic fantastic"

— Sarcastic term for something that looks impressive but is actually cheap and made of plastic.

Look at his new plastic fantastic watch; it'll probably break in a week.

informal

"Plastic surgery for the soul"

— A metaphorical way of saying someone needs to change their inner character rather than their appearance.

He doesn't need a new car; he needs some plastic surgery for the soul.

literary

"The plastic age"

— The current era of human history characterized by the widespread use of plastic.

Historians might look back on this time as the peak of the plastic age.

academic

"Plastic as a toy"

— Something that is not serious or is easily manipulated.

He treated the law as if it were plastic as a toy.

informal

"Molded like plastic"

— Easily influenced or changed by others.

The young students were molded like plastic by their charismatic teacher.

neutral

間違えやすい

plastic vs Plaster

Similar spelling and both involve molding.

Plaster is a mineral-based material (like for walls or casts), while plastic is a polymer-based material.

The walls are made of plaster, but the light switch is plastic.

plastic vs Plasticity

It is the noun form of the property.

Plastic is the material; plasticity is the quality of being able to be molded.

The plasticity of the clay made it easy to work with.

plastic vs Plasticize

It is the verb form.

Plastic is the noun/adjective; plasticize is the action of making something plastic.

They added chemicals to plasticize the PVC.

plastic vs Pliant

Similar meaning of being bendable.

Pliant is often used for people's characters (easily influenced), while plastic is more often used for materials.

He had a pliant nature, unlike the rigid plastic of the chair.

plastic vs Polymer

They are often used as synonyms.

Polymer is the chemical category; plastic is the common name for a subset of polymers.

Not every polymer is a plastic, but every plastic is a polymer.

文型パターン

It is a [adjective] [noun].

It is a plastic cup.

I pay with [noun].

I pay with plastic.

[Noun] is made of [material].

The chair is made of plastic.

The [noun] is [adjective] and [adjective].

The plastic is durable and lightweight.

The [noun] of [noun] is [adjective].

The plasticity of the brain is remarkable.

Despite its [noun], the [noun] remains [adjective].

Despite its ubiquity, plastic remains a controversial material.

We must [verb] the [noun].

We must recycle the plastic.

There is a [noun] on [noun].

There is a ban on plastic straws.

語族

名詞

動詞

形容詞

使い方

frequency

Extremely high in daily life, environmental science, and finance.

よくある間違い

I have a plastic of water. → I have a plastic bottle of water.
Plastic is the material, not the container. You must specify the object.
There are many plastics on the beach. → There is a lot of plastic on the beach.
When talking about general waste, plastic is uncountable.
He has an elastic personality. → He has a plastic personality.
While 'elastic' means flexible, 'plastic' is the idiom for being fake or artificial.
I want to plastic this document. → I want to laminate this document.
'Plastic' is not a verb for covering things in plastic. Use 'laminate' or 'coat'.
The rubber band is plastic. → The rubber band is elastic.
Plastic means it stays in its new shape; elastic means it snaps back.

ヒント

Choosing the right word

Use 'plastic' for everyday objects and 'polymer' when you want to sound more scientific or technical.

Uncountable Noun

Remember that 'plastic' is usually uncountable. Say 'There is too much plastic' rather than 'There are too many plastics' when talking about waste.

Figurative Meaning

Use 'plastic' to describe something artificial or fake to add variety to your descriptions of people or places.

The 'A' sound

Ensure the 'a' in 'plastic' is short and crisp, like the 'a' in 'apple,' not long like in 'father.'

Single-use

When discussing environmental issues, always use the term 'single-use plastic' to be specific about the most harmful types of waste.

Card Payments

In English-speaking countries, asking 'Do you take plastic?' is a very polite and common way to ask if a shop accepts cards.

Plastic Surgery

Remember that 'plastic surgery' includes both cosmetic (for looks) and reconstructive (for healing) procedures.

Precision

Instead of just saying 'plastic,' try to specify the object, like 'plastic casing,' 'plastic film,' or 'plastic tubing.'

Greek Roots

Knowing that 'plastic' comes from a word meaning 'to mold' helps you understand all its different meanings, from art to science.

Be Careful

Avoid calling a person 'plastic' to their face, as it is almost always an insult regarding their character or appearance.

暗記しよう

記憶術

Think of 'PLASTIC' as 'Polymers Linked And Shaped To Individual Containers.' This helps you remember it's a man-made material (polymers) that can be shaped.

視覚的連想

Imagine a colorful plastic toy being squeezed and changing shape, then hardening into that new shape. This visualizes the property of plasticity.

Word Web

Bottle Surgery Credit Card Recycle Polymer Fake Pollution Molding

チャレンジ

Try to go an entire day without touching anything made of plastic. You will quickly realize how pervasive the material is in your life.

語源

The word comes from the Latin 'plasticus' and the Greek 'plastikos,' which both mean 'fit for molding.' It entered the English language in the late 16th century to describe the art of modeling in clay or wax.

元の意味： Originally, it was an adjective used in the context of art and sculpture to describe materials that could be shaped.

Indo-European (Greek/Latin roots)

文化的な背景

Be careful when using 'plastic' to describe people's appearances, as it can be highly offensive, implying they look fake or have had too much surgery.

In the UK and US, 'plastic' is a common slang term for credit cards. In the UK, 'plastic fan' is a specific insult for sports fans.

The movie 'The Graduate' (1967) and its 'Plastics' quote. The song 'Barbie Girl' by Aqua. The 'Plastics' clique in the movie 'Mean Girls'.

実生活で練習する

実際の使用場面

Shopping and Retail

Do you need a plastic bag?
I'll pay with plastic.
Plastic packaging
Single-use plastic ban

Environmental Discussion

Plastic pollution in the ocean
Microplastics in the food chain
Recycle your plastic waste
Plastic-free lifestyle

Medical/Beauty

Plastic surgery clinic
Reconstructive plastic surgery
Plastic surgeon
Cosmetic plastic surgery

Science/Engineering

Plastic deformation
Thermoplastic properties
Polymer and plastic
Plasticity of the material

Social/Personality

A plastic personality
Plastic smile
He's so plastic
Artificial and plastic

会話のきっかけ

"Do you think we should ban all single-use plastic items in our city?"

"Have you ever used 'plastic' (a credit card) for a very large purchase?"

"What do you think about the popularity of plastic surgery in modern culture?"

"How much plastic do you think you use in a typical day?"

"Do you find it easy to tell if someone has a 'plastic' personality?"

日記のテーマ

Reflect on how your life would change if plastic was suddenly removed from the world.

Write about a time you encountered someone with a 'plastic' smile and how it made you feel.

Discuss the ethical implications of plastic pollution and who should be responsible for cleaning it up.

How does the concept of 'neuroplasticity' change your view on learning new skills as an adult?

Describe the most unusual plastic object you own and why you kept it.

よくある質問

10 問

It is both. As a noun, it refers to the material ('made of plastic'). As an adjective, it describes something made of that material ('a plastic cup') or something that is moldable ('a plastic substance').

The name comes from the Greek word 'plastikos,' which means 'to mold' or 'to shape.' It refers to the shaping of body tissues, not the use of synthetic plastic materials, although some implants are made of polymers.

Yes, but only when you are referring to different types of plastic materials (e.g., 'The factory produces many different plastics'). For general waste, say 'a lot of plastic'.

It is a common informal expression meaning to pay with a credit card or debit card instead of using cash.

Plastic itself is a material; the problem is how we use it (single-use) and how we dispose of it. It is very useful in medicine and construction, but harmful when it becomes ocean pollution.

An elastic material (like a rubber band) returns to its original shape after being stretched. A plastic material (like modeling clay) keeps its new shape after being molded.

Microplastics are tiny pieces of plastic, less than five millimeters long, which result from the breakdown of larger plastic products or are manufactured for use in cosmetics.

It describes a smile that looks fake, forced, or insincere, often used to describe someone who is trying too hard to look happy or friendly.

It can be. In slang, it can mean 'credit card' or it can be used as an insult to describe someone who is fake or has had a lot of cosmetic surgery.

It is the brain's ability to reorganize itself by forming new neural connections. It shows that the brain is 'plastic' or adaptable throughout a person's life.

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