B2 Expression رسمي 3 دقيقة للقراءة

À luz de demonstração

Regarding the demonstração

حرفيًا: At the light of demonstration

في 15 ثانية

  • Used to draw conclusions based on specific evidence or examples shown.
  • Best for professional, academic, or serious legal and personal contexts.
  • Metaphorically uses 'light' to represent the clarity provided by proof.

المعنى

This phrase is used to analyze a situation or make a decision based on a specific piece of evidence or a practical example that was just shown.

أمثلة رئيسية

3 من 6
1

In a business meeting after seeing a report

À luz de demonstração dos resultados, precisamos ajustar nossa estratégia.

In light of the demonstration of results, we need to adjust our strategy.

2

A teacher explaining a math problem

À luz de demonstração no quadro, o teorema fica mais claro.

In light of the demonstration on the board, the theorem becomes clearer.

3

Texting a friend about a serious decision

À luz de demonstração de ontem, decidi não viajar com ele.

In light of yesterday's demonstration, I decided not to travel with him.

🌍

خلفية ثقافية

Em Portugal, o uso de 'à luz de' é extremamente comum em editoriais de jornais como o 'Público' ou 'Expresso' para analisar a situação política. No Brasil, a expressão é muito forte no meio jurídico (Direito). Advogados usam-na constantemente em petições para referenciar provas. Em contextos formais de Luanda, a expressão é usada para validar o progresso de obras públicas perante a imprensa. Em todas as universidades lusófonas, esta frase é um 'conector' essencial para teses e dissertações.

🎯

The 'Crase' Test

If you can replace 'À luz de' with 'Ao brilho de' (masculine), then the 'à' must have an accent.

⚠️

Don't overdo it

Using this phrase more than once in a short email makes you sound like a 19th-century lawyer. Use synonyms like 'Considerando' to vary your text.

في 15 ثانية

  • Used to draw conclusions based on specific evidence or examples shown.
  • Best for professional, academic, or serious legal and personal contexts.
  • Metaphorically uses 'light' to represent the clarity provided by proof.

What It Means

This phrase is a sophisticated way to say 'considering what was shown.' Imagine you are in a dark room and someone turns on a flashlight. That light is the 'demonstration' or proof. Suddenly, everything becomes clear. When you use À luz de demonstração, you are telling your listener that your current conclusion is only possible because of that specific light. It implies that the evidence is so strong it changes how you see the entire situation. It is not just about having an opinion. It is about having an opinion backed by a clear, visible proof.

How To Use It

You usually place this phrase at the start of a sentence to set the context. It acts as a logical bridge. For example, if a colleague shows you a graph proving sales are down, you might start your next sentence with this phrase. It sounds very professional and objective. You can also use it in the middle of a sentence to justify a specific action. It tells people that you aren't just guessing. You are acting based on the 'light' of the evidence provided. It is a powerful tool for persuasion.

When To Use It

This is your go-to phrase for office meetings and academic writing. Use it when you want to sound authoritative and well-prepared. It works perfectly in legal contexts or during a serious debate. If you are a teacher explaining a concept after an experiment, this phrase is perfect. You can also use it in serious personal conversations. For instance, if a friend proves they can be trusted, you might use it to explain your renewed confidence in them. It shows you value logic and clarity.

When NOT To Use It

Do not use this phrase at a casual barbecue or a loud bar. It will make you sound like a textbook or a lawyer. If you are just chatting about the weather, it is way too heavy. Avoid it in quick, informal text messages unless you are being intentionally ironic. Also, do not use it if there hasn't actually been a demonstration. If there is no proof or example to refer to, the phrase loses its meaning. It requires a 'light' to function properly.

Cultural Background

Portuguese culture has a long history of formal rhetoric and legal tradition. This phrase reflects a cultural respect for intellectual clarity and structured argument. In Portugal and Brazil, being able to speak formally is often seen as a sign of education and status. The metaphor of 'light' representing truth is deeply rooted in Western philosophy. By using this, you are tapping into a tradition that dates back to the Enlightenment. It shows you are a person who values reason over raw emotion.

Common Variations

The most common variation is À luz dos fatos, which means 'in light of the facts.' You might also hear À luz da razão when someone is talking about using logic. In more casual settings, people might just say Visto que or Considerando. If you want to sound even more formal, you could use Em face da demonstração. However, the original phrase remains a classic for anyone wanting to sound precise. It is a versatile tool for any serious speaker.

ملاحظات الاستخدام

This is a high-register expression. Use it when you want to sound objective, professional, and logically sound. It is most effective when a clear example or proof has just been presented.

🎯

The 'Crase' Test

If you can replace 'À luz de' with 'Ao brilho de' (masculine), then the 'à' must have an accent.

⚠️

Don't overdo it

Using this phrase more than once in a short email makes you sound like a 19th-century lawyer. Use synonyms like 'Considerando' to vary your text.

أمثلة

6
#1 In a business meeting after seeing a report

À luz de demonstração dos resultados, precisamos ajustar nossa estratégia.

In light of the demonstration of results, we need to adjust our strategy.

The speaker uses the data shown to justify a change in plans.

#2 A teacher explaining a math problem

À luz de demonstração no quadro, o teorema fica mais claro.

In light of the demonstration on the board, the theorem becomes clearer.

Refers to the visual proof provided during the lesson.

#3 Texting a friend about a serious decision

À luz de demonstração de ontem, decidi não viajar com ele.

In light of yesterday's demonstration, I decided not to travel with him.

Uses a formal phrase for a serious personal boundary.

#4 A lawyer addressing a judge

À luz de demonstração pericial, a inocência é evidente.

In light of the expert demonstration, innocence is evident.

Very formal usage in a legal setting.

#5 Humorous comment about a friend's cooking

À luz de demonstração desse bolo queimado, eu peço a pizza.

In light of the demonstration of this burnt cake, I'll order the pizza.

Uses a formal phrase for a funny, everyday fail.

#6 Emotional realization in a relationship

À luz de demonstração de carinho, eu finalmente entendi seus sentimentos.

In light of the demonstration of affection, I finally understood your feelings.

The 'demonstration' here is an emotional gesture.

اختبر نفسك

Preencha a lacuna com a forma correta da expressão.

_______ demonstração de ontem, o cliente assinou o contrato.

✓ صحيح! ✗ ليس تمامًا. الإجابة الصحيحة: À luz de

A expressão correta exige a crase (à) para indicar a locução prepositiva.

Qual frase usa a expressão de forma apropriada para um contexto formal?

Escolha a melhor opção:

✓ صحيح! ✗ ليس تمامًا. الإجابة الصحيحة: À luz de demonstração dos dados, a hipótese foi confirmada.

Esta opção usa a expressão em um contexto acadêmico/científico adequado.

Complete o diálogo de trabalho.

Chefe: 'O novo motor é seguro?' Engenheiro: 'Sim, _______, ele superou todas as expectativas.'

✓ صحيح! ✗ ليس تمامًا. الإجابة الصحيحة: à luz de demonstração

É a forma padrão para justificar uma conclusão técnica.

🎉 النتيجة: /3

وسائل تعلم بصرية

بنك التمارين

3 تمارين
Preencha a lacuna com a forma correta da expressão. Fill Blank B2

_______ demonstração de ontem, o cliente assinou o contrato.

✓ صحيح! ✗ ليس تمامًا. الإجابة الصحيحة: À luz de

A expressão correta exige a crase (à) para indicar a locução prepositiva.

Qual frase usa a expressão de forma apropriada para um contexto formal? Choose B2

Escolha a melhor opção:

✓ صحيح! ✗ ليس تمامًا. الإجابة الصحيحة: À luz de demonstração dos dados, a hipótese foi confirmada.

Esta opção usa a expressão em um contexto acadêmico/científico adequado.

Complete o diálogo de trabalho. dialogue_completion B2

Chefe: 'O novo motor é seguro?' Engenheiro: 'Sim, _______, ele superou todas as expectativas.'

✓ صحيح! ✗ ليس تمامًا. الإجابة الصحيحة: à luz de demonstração

É a forma padrão para justificar uma conclusão técnica.

🎉 النتيجة: /3

الأسئلة الشائعة

4 أسئلة

Yes, in this specific expression meaning 'in light of', the 'à' always carries the crase.

Only if you are being ironic or talking to a colleague about a serious work matter. It's too formal for 'Hey, what's up?'.

'À luz de' is general (in light of demonstration), while 'À luz da' is specific (in light of THE demonstration).

In Portugal, yes (manifestação/demonstração). However, in this phrase, it almost always refers to a proof or showing of how something works.

عبارات ذات صلة

🔗

À luz dos fatos

similar

Considering the facts.

🔗

Sob a ótica de

similar

From the perspective of.

🔄

Em vista de

synonym

In view of.

🔄

Tendo em conta

synonym

Taking into account.

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