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B1 noun 10分钟阅读

die Effizienz

例句
解析 die Effizienz in your Level:
At the A1 level, 'die Effizienz' is a complex word that you likely won't use yourself, but you might see it in simple advertisements or on signs. It means 'efficiency'—doing things in a good, fast, and smart way. You can remember that it starts with 'Eff-', just like in English. At this stage, focus on the fact that it is a feminine noun ('die'). You might see it on a label for a lightbulb or a washing machine, usually with a letter like 'A+++'. This tells you how 'efficient' the product is with electricity. Even if you cannot build long sentences with it, knowing that it relates to 'working well' is enough for now. Think of it as a 'bonus' word that helps you understand labels in a German supermarket. You don't need to worry about the grammar cases yet; just recognize the word when you see it in a professional or technical context. It is a 'big' word for a beginner, but because it looks like the English word, it is easy to recognize. Just remember: it's 'die Effizienz', not 'der' or 'das'.
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At the A2 level, you can start using 'die Effizienz' in basic sentences about work or school. You might say 'Ich brauche mehr Effizienz' (I need more efficiency) when you are studying. You are beginning to learn that German likes to combine words, so you might see 'Energieeffizienz' (energy efficiency). You should know that it is a noun and that the adjective is 'effizient'. For example: 'Mein Computer ist effizient' (My computer is efficient). At this level, you should be able to identify 'die Effizienz' as a goal in a simple text about business or the environment. You might also encounter it in a doctor's office or a pharmacy when talking about how well a treatment works, although 'Wirksamkeit' is more common there. The key for A2 is to use the word with the correct article in the nominative and accusative cases. 'Ich finde die Effizienz wichtig' (I find efficiency important). You are starting to see how German values this concept in daily life, from recycling to public transport schedules.
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At the B1 level, you are expected to use 'die Effizienz' to discuss topics like the environment, the workplace, and technology. You should understand the difference between 'effizient' (adjective) and 'Effizienz' (noun) and be able to use them in more complex sentences. You can now use the genitive case to describe what is efficient: 'Die Effizienz des neuen Motors ist sehr hoch.' You should also be familiar with common verbs that go with it, such as 'steigern' (to increase) or 'verbessern' (to improve). B1 learners should be able to explain why something is efficient or inefficient in a simple presentation or a letter. You might say, 'Durch das neue System können wir die Effizienz in der Firma steigern.' You are also likely to encounter this word in reading exams, where you might have to identify if a company is working efficiently based on a provided text. Understanding 'die Effizienz' at this level helps you sound more professional and precise in your descriptions of processes and systems.
At the B2 level, 'die Effizienz' becomes a tool for nuanced argumentation. You should be able to distinguish it clearly from 'die Effektivität' and use both correctly in a business or academic discussion. You should be comfortable with prepositional phrases like 'im Hinblick auf die Effizienz' or 'an Effizienz gewinnen'. You can discuss the social and economic implications of efficiency—for example, the 'Effizienzdruck' (pressure to be efficient) in modern workplaces. Your vocabulary should include synonyms like 'Produktivität' and you should know when to use which. In writing, you can use 'die Effizienz' to structure your arguments, perhaps comparing the efficiency of different solutions to a problem. You should also be able to understand more abstract uses of the word, such as 'die Effizienz der Kommunikation' or 'die Effizienz politischer Maßnahmen'. At B2, your pronunciation should be sharp, correctly hitting the 'ts' sound for the 'z'. You are now using the word not just to describe machines, but to analyze systems and human behavior.
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At the C1 level, you use 'die Effizienz' with the precision of a native speaker. You are aware of its technical meanings in various fields, from thermodynamics ('Wirkungsgrad') to economics ('Pareto-Effizienz'). You can engage in deep debates about whether the pursuit of efficiency sometimes compromises 'die Qualität' or 'die Menschlichkeit'. You use sophisticated collocations effortlessly, such as 'die Effizienz nachhaltig steigern' or 'mangelnde Effizienz beklagen'. Your writing includes complex sentence structures where 'die Effizienz' might be the subject of a passive construction or part of a multi-clause analysis. You understand the cultural nuances—how the concept of efficiency is tied to German identity and the 'Made in Germany' brand. You can also use the word ironically or critically in a discussion about 'Bürokratie' (bureaucracy). At this level, you don't just know what the word means; you know how it functions as a value and a metric in high-level discourse. You can read specialized articles in 'Der Spiegel' or 'Die Zeit' and understand the subtle ways 'Effizienz' is used to frame political and economic arguments.
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At the C2 level, you have a complete mastery of 'die Effizienz' and all its related forms and nuances. You can appreciate the word's etymology from the Latin 'efficientia' and how it has evolved in the German linguistic context. You can use it in highly formal academic writing, legal documents, or literary analysis. You are capable of discussing the philosophy of efficiency—the 'Logik der Effizienz'—and how it shapes modern life. You can switch between different registers, using 'Effizienz' in a scientific paper and then perhaps a more metaphorical term like 'Schlagkraft' in a speech. You understand the most obscure compound nouns and can even create your own logically sound compounds if the situation requires it. Your use of the word is indistinguishable from a highly educated native speaker, including the correct use of subtle prepositions and the rare plural form if necessary for a specific comparison. You can also identify and use idioms or professional jargon that incorporate the concept of efficiency without necessarily using the word itself, demonstrating a deep 'Sprachgefühl' (feeling for the language).
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例句

The German noun die Effizienz is a fundamental concept in both the German language and the broader cultural landscape of German-speaking countries. At its core, it refers to the ratio of output to input, or more simply, the ability to achieve a goal with the least amount of wasted time, energy, or resources. While the English word 'efficiency' is a direct cognate, the German usage often carries a weight of professional rigor and systematic planning. It is not merely about being fast; it is about being optimal. In a professional context, you will encounter this word daily, whether discussing the performance of a new piece of machinery, the workflow of a department, or the environmental impact of a heating system. Understanding this word requires recognizing that it is almost always viewed as a positive, aspirational trait in German society, often linked to the concept of 'Gründlichkeit' (thoroughness).

Technical Application
In engineering and physics, 'die Effizienz' describes the degree to which energy or effort is converted into useful work without loss.
Economic Context
In business, it refers to the relationship between the costs incurred and the results achieved, often measured by productivity metrics.

Wir müssen die Effizienz unserer Arbeitsprozesse deutlich steigern, um wettbewerbsfähig zu bleiben.

The term is also deeply embedded in environmental discussions. Germany's 'Energiewende' (energy transition) relies heavily on 'Energieeffizienz'—using less energy to provide the same level of service. For a learner, mastering this word means being able to participate in discussions about sustainability, economics, and personal productivity. It is a 'high-value' word because it appears in news headlines, academic papers, and workplace evaluations alike. Unlike some words that vary significantly between spoken and written registers, 'Effizienz' remains stable; it is formal enough for a board meeting but common enough for a conversation about how to pack a suitcase more effectively.

Die neue Software verbessert die Effizienz der Datenverarbeitung erheblich.

Personal Productivity
Using time-blocking or the Pomodoro technique is a way to increase your personal 'Effizienz' during study sessions.

Durch eine bessere Organisation konnten wir die Effizienz im Team verdoppeln.

Mangelnde Effizienz führt oft zu unnötigen Kosten in der Produktion.

Grammatical Gender
Always remember 'die'. You will use 'der' only in the genitive or dative cases (e.g., 'wegen der Effizienz').

Es geht bei diesem Projekt vor allem um die Effizienz der Ressourcennutzung.

Using 'die Effizienz' correctly involves understanding its role as a feminine noun and its typical collocations. Most often, you will see it as the object of verbs like 'steigern' (to increase), 'verbessern' (to improve), or 'optimieren' (to optimize). Because it is an abstract noun, it is frequently used without an article in certain phrases, although the definite article 'die' is standard when referring to the efficiency of something specific. For example, 'Effizienz ist wichtig' (Efficiency is important) vs. 'Die Effizienz des Motors' (The efficiency of the engine). When you want to describe how something is done, you might use the adjective 'effizient', but when focusing on the quality itself, 'die Effizienz' is your primary tool.

Genitive Constructions
The genitive case is very common with this word to indicate what is being efficient: 'Die Effizienz des Systems' (The efficiency of the system).

Wir zweifeln an der Effizienz der aktuellen Maßnahmen.

In the sentence above, 'an der Effizienz' shows the dative case triggered by the preposition 'an' following the verb 'zweifeln'. This is a sophisticated way to express doubt. Another common structure is 'auf Effizienz achten' (to pay attention to efficiency). This shows that efficiency is a goal or a standard being applied to a process. If you are writing a report, you might use phrases like 'im Hinblick auf die Effizienz' (with regard to efficiency) or 'unter dem Aspekt der Effizienz' (under the aspect of efficiency). These phrases help transition between different points of analysis. Furthermore, compound nouns are extremely prevalent. Instead of saying 'die Effizienz von Energie', Germans almost always say 'die Energieeffizienz'. This compounding is a hallmark of efficient German grammar itself!

Die Steigerung der Effizienz ist unser oberstes Ziel für das nächste Quartal.

Adjective Modifiers
Common adjectives used with Effizienz include 'hoch' (high), 'gering' (low), 'mangelnd' (lacking), and 'maximal' (maximum).

Trotz der hohen Effizienz der Maschine gibt es noch Raum für Verbesserungen.

Können Sie mir Beispiele für die Effizienz dieses neuen Verfahrens nennen?

Prepositional Usage
Use 'bei' to indicate the context: 'Bei der Effizienz hapert es noch' (It's still lacking in terms of efficiency).

In puncto Effizienz macht diesem Unternehmen niemand etwas vor.

If you live in Germany, Austria, or Switzerland, you will hear 'die Effizienz' in several distinct environments. First and foremost is the corporate world. During 'Meetings' (yes, Germans use the English word), managers will obsess over 'Effizienzsteigerung' (efficiency increase). You will hear it in performance reviews, strategy presentations, and annual reports. It is the language of the 'Mittelstand' (the small and medium-sized enterprises that form the backbone of the German economy). In these settings, the word conveys a sense of competence and modern management. If a project is described as having 'geringe Effizienz', it is a polite but firm way of saying it is failing or wasting money.

The Media and Politics
News programs like 'Tagesschau' frequently use 'Effizienz' when discussing government spending, healthcare reforms, or climate policy.

Die Politik fordert mehr Effizienz in der Verwaltung.

Another common place is in advertising, specifically for household appliances or cars. A washing machine isn't just good; it has 'höchste Energieeffizienz'. A car isn't just fast; it has 'Kraftstoffeffizienz' (fuel efficiency). Consumers look for these labels because electricity and fuel prices are high in Central Europe, making efficiency a practical financial concern. You will also hear it in sports commentary. A striker in football who scores with very few chances is praised for his 'Effizienz vor dem Tor'. This usage highlights that the word isn't just for machines; it applies to human performance where results are achieved with minimal effort or opportunity.

Der Stürmer bewies heute eine beeindruckende Effizienz.

Educational Settings
University lecturers in STEM fields or economics will use 'die Effizienz' as a defined variable in equations and theories.

In der Thermodynamik ist die Effizienz ein zentraler Kennwert.

Wir müssen die Effizienz der Heizungsanlage prüfen.

Everyday Conversations
Even at home, someone might say: 'Das ist keine effiziente Art, die Spülmaschine einzuräumen!' (That's not an efficient way to load the dishwasher!).

Die Effizienz unserer Zusammenarbeit hat sich durch das neue Tool verbessert.

The most frequent mistake English speakers make with 'die Effizienz' is confusing it with 'die Effektivität'. In English, 'efficiency' and 'effectiveness' are often used interchangeably in casual speech, but in German, the distinction is strictly maintained. 'Effektivität' is about the result (Did you reach the goal?), while 'Effizienz' is about the process (How many resources did you use to reach the goal?). If you say a machine is 'effektiv' when you mean it is 'effizient', a German engineer might correct you. Another common error is using the wrong gender. Since 'Effizienz' ends in '-enz', it must be 'die'. Beginners often default to 'der' because they associate 'system' or 'motor' (common topics for efficiency) with masculine or neuter genders.

False Friends and Cognates
While 'Effizienz' looks like 'efficiency', ensure you don't accidentally use 'Effizienz' as an adjective. The adjective is 'effizient'.

Falsch: Das ist eine sehr Effizienz Lösung. Richtig: Das ist eine sehr effiziente Lösung.

Another mistake involves preposition choice. English speakers often want to say 'efficiency in...' and translate it directly as 'Effizienz in...'. While 'in' is sometimes used, German usually prefers 'bei' or 'von'. For example, 'Effizienz bei der Arbeit' is more natural than 'Effizienz in der Arbeit'. Additionally, learners sometimes struggle with the plural. As mentioned before, 'Effizienzen' is rare. If you find yourself wanting to say 'efficiencies', try to rephrase it using 'Bereiche der Effizienz' (areas of efficiency) or simply keep it singular. Finally, be careful with the pronunciation. The '-zi-' part is pronounced like 'tsi', not 'si'. If you pronounce it like the English 'efficiency', you might not be understood immediately.

Ein Prozess kann effektiv sein, aber eine geringe Effizienz aufweisen.

Spelling Errors
Note the double 'f' and the 'z'. Do not write 'Efizienz' or 'Effizienzs'.

Wir müssen die Effizienz (nicht Efizienz) steigern.

Die Effizienz der Kommunikation ist entscheidend für den Erfolg.

Word Order
In subordinate clauses, the verb moves to the end, which can separate 'die Effizienz' from its corresponding verb.

Ich glaube, dass wir die Effizienz durch Schulungen verbessern können.

To sound more natural and precise in German, it is helpful to know words that are related to 'die Effizienz' but carry slightly different nuances. 'Die Produktivität' (productivity) is the most common neighbor; while efficiency is about the ratio, productivity is often about the total volume of output. 'Die Leistungsfähigkeit' (performance/capability) is used when talking about the potential of a person or a machine to perform well over time. If you want to talk specifically about how well something works in achieving a goal, you might use 'die Wirksamkeit' (effectiveness/efficacy), which is very common in medical or pharmaceutical contexts. For a more formal or academic tone, 'der Wirkungsgrad' is the technical term for efficiency in physics and engineering.

Effizienz vs. Produktivität
Effizienz focuses on waste reduction; Produktivität focuses on output volume.
Effizienz vs. Wirkungsgrad
Wirkungsgrad is a specific numerical value (usually a percentage) in technical fields.
Effizienz vs. Wirtschaftlichkeit
Wirtschaftlichkeit (profitability/economy) looks at the financial return on investment.

Wir müssen nicht nur die Effizienz, sondern auch die Wirtschaftlichkeit prüfen.

In casual conversation, you might hear people use 'Zweckmäßigkeit' (expediency/appropriateness), which suggests that something is fit for its purpose. If you are discussing a person's work style, 'die Gründlichkeit' (thoroughness) is often mentioned alongside efficiency, as Germans value doing a job right the first time to avoid having to redo it later (which would be inefficient). Another interesting alternative is 'die Schlagkraft', which literally means 'striking power' but is used metaphorically in business to describe the efficiency and effectiveness of a team or a marketing campaign. By choosing the right word from this cluster, you demonstrate a B2 or C1 level of nuance, showing that you understand the specific demands of the context.

Die Wirksamkeit des neuen Medikaments ist wissenschaftlich belegt.

Register Note
'Effizienz' is neutral to formal. 'Zweckmäßigkeit' is more formal. 'Schlagkraft' is more metaphorical/dynamic.

Das Team hat an Schlagkraft gewonnen.

Die Leistungsfähigkeit des Akkus lässt nach zwei Jahren nach.

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按水平分级的例句

1

Die Effizienz ist gut.

The efficiency is good.

Subject + verb + adjective. Effizienz is the subject.

2

Das Auto hat eine hohe Effizienz.

The car has a high efficiency.

Feminine accusative: 'eine hohe Effizienz'.

3

Was bedeutet Effizienz?

What does efficiency mean?

Simple question structure.

4

Die Effizienz von dem Motor ist wichtig.

The efficiency of the motor is important.

Using 'von + dative' instead of genitive (common at A1/A2).

5

Energieeffizienz spart Geld.

Energy efficiency saves money.

Compound noun acting as the subject.

6

Ich lerne mit Effizienz.

I learn with efficiency.

Preposition 'mit' + dative (no article here).

7

Ist die Effizienz hoch?

Is the efficiency high?

Yes/No question starting with the verb.

8

Hier ist die Effizienz klein.

Here the efficiency is small.

Adverb 'hier' + verb + subject.

1

Wir müssen die Effizienz verbessern.

We must improve the efficiency.

Modal verb 'müssen' + infinitive 'verbessern'.

2

Die Effizienz der Maschine ist niedrig.

The efficiency of the machine is low.

Genitive 'der Maschine'.

3

Er arbeitet mit großer Effizienz.

He works with great efficiency.

Dative after 'mit': 'großer Effizienz'.

4

Effizienz ist ein wichtiges Thema im Büro.

Efficiency is an important topic in the office.

Noun as a concept without an article.

5

Können wir die Effizienz steigern?

Can we increase the efficiency?

Modal verb 'können' in a question.

6

Wegen der Effizienz wählen wir dieses Modell.

Because of the efficiency, we choose this model.

Preposition 'wegen' + genitive 'der Effizienz'.

7

Die Effizienz hilft uns Zeit zu sparen.

The efficiency helps us to save time.

Infinitive clause with 'zu'.

8

Ohne Effizienz verlieren wir Kunden.

Without efficiency, we lose customers.

Preposition 'ohne' + accusative.

1

Die Effizienz lässt sich durch neue Technik steigern.

The efficiency can be increased through new technology.

Reflexive 'lässt sich' used as a passive substitute.

2

Es mangelt in diesem Betrieb an Effizienz.

There is a lack of efficiency in this business.

Verb 'mangeln' + 'an' + dative.

3

Wir achten bei der Auswahl auf die Effizienz.

We pay attention to efficiency during the selection.

Verb 'achten' + 'auf' + accusative.

4

Die Effizienz der Mitarbeiter hat zugenommen.

The efficiency of the employees has increased.

Perfect tense 'hat zugenommen'.

5

Trotz der Effizienz gibt es Probleme.

Despite the efficiency, there are problems.

Preposition 'trotz' + genitive.

6

Die Steigerung der Effizienz ist notwendig.

The increase in efficiency is necessary.

Genitive 'der Effizienz' modifying 'Steigerung'.

7

Man sollte die Effizienz nicht überbewerten.

One should not overrate efficiency.

Modal verb 'sollte' + negation.

8

Das Ziel ist eine maximale Effizienz.

The goal is maximum efficiency.

Adjective 'maximale' in the nominative.

1

Die Effizienz der Kommunikation bestimmt den Projekterfolg.

The efficiency of communication determines the project's success.

Genitive 'der Kommunikation' and 'den Projekterfolg' (accusative).

2

Wir müssen die Effizienz gegenüber der Qualität abwägen.

We must weigh efficiency against quality.

Verb 'abwägen' + 'gegenüber' + dative.

3

Die Effizienzsteigerung führt zu Kosteneinsparungen.

The efficiency increase leads to cost savings.

Compound noun 'Effizienzsteigerung'.

4

In puncto Effizienz ist Deutschland weltweit führend.

In terms of efficiency, Germany is a world leader.

Idiom 'In puncto' + noun.

5

Die Effizienz der Ressourcennutzung ist ein zentrales Thema.

The efficiency of resource use is a central theme.

Complex genitive chain.

6

Es bedarf einer höheren Effizienz im Gesundheitssystem.

A higher efficiency is required in the healthcare system.

Verb 'bedürfen' + genitive object.

7

Die Effizienz wurde durch die Umstrukturierung verdoppelt.

The efficiency was doubled by the restructuring.

Passive voice 'wurde ... verdoppelt'.

8

Effizienz allein reicht nicht aus, um erfolgreich zu sein.

Efficiency alone is not enough to be successful.

Separable verb 'ausreichen'.

1

Die Effizienz der Verwaltung wird oft kritisch hinterfragt.

The efficiency of the administration is often critically scrutinized.

Passive voice with an adverbial modifier.

2

Die Steigerung der Effizienz darf nicht zu Lasten der Mitarbeiter gehen.

The increase in efficiency must not be at the expense of the employees.

Idiom 'zu Lasten von' + dative.

3

Eine mangelnde Effizienz kann fatale Folgen für das Unternehmen haben.

A lack of efficiency can have fatal consequences for the company.

Adjective 'mangelnde' used as an attribute.

4

Im Hinblick auf die Effizienz sind diese Maßnahmen unzureichend.

With regard to efficiency, these measures are insufficient.

Prepositional phrase 'Im Hinblick auf' + accusative.

5

Die Effizienz ist ein Indikator für die Wettbewerbsfähigkeit.

Efficiency is an indicator of competitiveness.

Preposition 'für' + accusative.

6

Wir müssen die Effizienz unserer Prozesse kontinuierlich evaluieren.

We must continuously evaluate the efficiency of our processes.

Adverb 'kontinuierlich' modifying the verb.

7

Die Effizienz der Energieumwandlung ist physikalisch begrenzt.

The efficiency of energy conversion is physically limited.

Technical context.

8

Die Effizienz des Marktes wird durch Monopole gestört.

The efficiency of the market is disturbed by monopolies.

Economic context, passive voice.

1

Die Effizienz ist das Credo der modernen Industriegesellschaft.

Efficiency is the credo of the modern industrial society.

Abstract noun used in a philosophical sense.

2

Man kann die Effizienz nicht losgelöst von ökologischen Aspekten betrachten.

One cannot view efficiency in isolation from ecological aspects.

Participle 'losgelöst' used as an adverbial.

3

Die Effizienz der Justiz ist ein Grundpfeiler des Rechtsstaates.

The efficiency of the judiciary is a cornerstone of the constitutional state.

High-level political/legal vocabulary.

4

Die Effizienzsteigerung stieß an ihre natürlichen Grenzen.

The increase in efficiency reached its natural limits.

Idiomatic verb 'stoßen an' + accusative.

5

Die Effizienz der Algorithmen revolutioniert die Arbeitswelt.

The efficiency of algorithms is revolutionizing the world of work.

Present tense used for ongoing trends.

6

Unter dem Diktat der Effizienz leidet oft die Kreativität.

Under the dictate of efficiency, creativity often suffers.

Metaphorical use of 'Diktat'.

7

Die Effizienz ist ein Maßstab für die Rationalität des Handelns.

Efficiency is a yardstick for the rationality of action.

Philosophical/Sociological context.

8

Die Effizienz der Ressourcenallokation ist ein Kernpunkt der ökonomischen Theorie.

The efficiency of resource allocation is a core point of economic theory.

Specialized economic terminology.

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