Designing a Bridge – Bilingual English–Spanish Story, Audio & Grammar Practice (A1–C2)

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Vocabulary: engineer · bridge · design · structure

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A1 A2 B1 B2 C1 C2 Buy me a coffee

Grammar focus: los verbos del texto inglés aparecen destacados en azul. Debajo de cada lectura puedes abrir Past tense version para comparar la misma historia en presente y en pasado, y Grammar point para estudiar una estructura útil del nivel.

A1 | BEGINNER

Carlos is an engineer and works on a new bridge. He draws a plan in his office. Then, he visits the river to see the site. He uses a computer to do calculations. When he finishes his work, he reviews the details with his team and feels proud.

A1 | PRINCIPIANTE

Carlos es ingeniero y trabaja en un puente nuevo. Dibuja un plano en su oficina. Luego, visita el río para ver el lugar. Usa una computadora para hacer cálculos. Cuando termina su trabajo, revisa los detalles con su equipo y se siente orgulloso.

🎵 He learned everything he knows at LecturaBilingue.com — the place where stories come alive. 🎵 Todo lo que sabe lo aprendió en LecturaBilingue.com, el lugar donde las historias cobran vida.

⏳ A1 | Past tense version Present → Past

La misma historia transformada al pasado. Los verbos que cambian aparecen destacados.

Carlos was an engineer and worked on a new bridge. He drew a plan in his office. Then, he visited the river to see the site. He used a computer to do calculations. When he finished his work, he reviewed the details with his team and felt proud.

Main changes

is→was works→worked draws→drew visits→visited uses→used finishes→finished reviews→reviewed feels→felt

🧠 A1 | Grammar point work on + noun

La historia dice que Carlos works on a new bridge. Usamos work on cuando trabajamos en un proyecto, una tarea o algo que estamos creando o mejorando.

Regla fácil: work on + cosa/proyecto.

work on a bridge work on a project work on the design

Recuerda: work on no significa «trabajar encima de algo»; muchas veces significa simplemente «trabajar en algo».

🔊 AUDIO A1

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A1 | Practice

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Designing a Bridge

Vocabulary

• is an engineer — es ingeniero
• works on a bridge — trabaja en un puente
• draws a plan — dibuja un plano
• in his office — en su oficina
• visits the river — visita el río

• see the site — ver el lugar
• uses a computer — usa una computadora
• do calculations — hacer cálculos
• reviews the details — revisa los detalles
• feels proud — se siente orgulloso

Complete the sentence

Carlos is an He works on a new He draws a plan in his He uses a computer to do He feels

Choose the correct answer

What is Carlos? Choose A doctor An engineer A teacher Where does he go after drawing the plan? Choose To the school To the river To the shop What does he use to do calculations? Choose A phone A computer A book How does he feel at the end? Choose Tired Sad Proud

Build the sentence

Tap the words in the correct order:

a plan draws Carlos

Reading comprehension

1. What does Carlos draw in his office?
2. Why does he visit the river?
3. Who does he review the details with?

Translation practice

Translate into Spanish:

• Carlos is an engineer and works on a new bridge.
• He visits the river to see the site.
• He reviews the details with his team and feels proud.

Translate into English:

• Carlos es ingeniero y trabaja en un puente nuevo.
• Dibuja un plano en su oficina.
• Usa una computadora para hacer cálculos.

Reading and translation are bonus practice and are not included in the score.

A2 | ELEMENTARY

Carlos is part of a team designing a bridge over a river. First, they study the terrain and take measurements. Then, they create a model on the computer. He checks the materials and talks with other engineers. Before starting construction, they verify that the calculations are correct.

A2 | BÁSICO

Carlos forma parte de un equipo que diseña un puente sobre un río. Primero, estudian el terreno y toman medidas. Luego, crean un modelo en el ordenador. Él revisa los materiales y habla con otros ingenieros. Antes de comenzar la construcción, verifican que los cálculos sean correctos.

🎵 He learned everything he knows at LecturaBilingue.com — the place where stories come alive. 🎵 Todo lo que sabe lo aprendió en LecturaBilingue.com, el lugar donde las historias cobran vida.

⏳ A2 | Past tense version Present → Past

La misma historia transformada al pasado. Los verbos que cambian aparecen destacados.

Carlos was part of a team designing a bridge over a river. First, they studied the terrain and took measurements. Then, they created a model on the computer. He checked the materials and talked with other engineers. Before starting construction, they verified that the calculations were correct.

Main changes

is→was study→studied take→took create→created checks→checked talks→talked verify→verified are→were

🧠 A2 | Grammar point before + verb-ing

El texto dice Before starting construction. Cuando después de before no ponemos un sujeto nuevo, podemos usar un verbo acabado en -ing.

Estructura: before + verbo-ing.

before starting construction before leaving before checking the plan

Idea: equivale a «antes de + infinitivo» en español: before starting = «antes de empezar».

🔊 AUDIO A2

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A2 | Practice

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Designing a Bridge

Vocabulary

• part of a team — parte de un equipo
• designing a bridge — diseñando un puente
• over a river — sobre un río
• study the terrain — estudian el terreno
• take measurements — toman medidas
• create a model — crean un modelo

• on the computer — en el ordenador
• checks the materials — revisa los materiales
• other engineers — otros ingenieros
• starting construction — comenzar la construcción
• calculations are correct — los cálculos son correctos
• verify that — comprueban que

Complete the sentence

Carlos is part of a They study the Then, they create a He checks the They verify that the calculations are

Choose the correct answer

What is Carlos part of? Choose A class A team A family Where is the bridge? Choose Over a mountain Over a road Over a river What do they create on the computer? Choose A letter A model A photo Who does Carlos talk with? Choose Students Doctors Other engineers

Build the sentence

Tap the words in the correct order:

terrain the They study

Reading comprehension

1. What do they do first before designing the bridge in detail?
2. Why do they create a model on the computer?
3. What do they check before starting construction?

Translation practice

Translate into Spanish:

• Carlos is part of a team designing a bridge over a river.
• Then, they create a model on the computer.
• Before starting construction, they verify that the calculations are correct.

Translate into English:

• Carlos es parte de un equipo que diseña un puente sobre un río.
• Primero, estudian el terreno y toman medidas.
• Él revisa los materiales y habla con otros ingenieros.

Reading and translation are bonus practice and are not included in the score.

B1 | INTERMEDIATE

Carlos leads a team of engineers designing a modern bridge. They use specialized software to simulate the strength of materials. They evaluate different structural options and analyze the maximum load the bridge can support. During a meeting, they present the final design to the architects. Before construction, they conduct tests to ensure the structure’s safety and stability.

B1 | INTERMEDIO

Carlos lidera un equipo de ingenieros que diseña un puente moderno. Utilizan software especializado para simular la resistencia de los materiales. Evalúan diferentes opciones estructurales y analizan la carga máxima que el puente puede soportar. Durante una reunión, presentan el diseño final a los arquitectos. Antes de la construcción, realizan pruebas para garantizar la seguridad y estabilidad de la estructura.

🎵 He learned everything he knows at LecturaBilingue.com — the place where stories come alive. 🎵 Todo lo que sabe lo aprendió en LecturaBilingue.com, el lugar donde las historias cobran vida.

⏳ B1 | Past tense version Present → Past

La misma historia transformada al pasado. Los verbos que cambian aparecen destacados.

Carlos led a team of engineers designing a modern bridge. They used specialized software to simulate the strength of materials. They evaluated different structural options and analyzed the maximum load the bridge could support. During a meeting, they presented the final design to the architects. Before construction, they conducted tests to ensure the structure’s safety and stability.

Main changes

leads→led use→used evaluate→evaluated analyze→analyzed can support→could support present→presented conduct→conducted

🧠 B1 | Grammar point omitting that in a relative clause

El texto habla de the maximum load the bridge can support. Aquí podríamos decir the maximum load that the bridge can support, pero that se puede omitir porque funciona como objeto de support.

Regla útil: si that es el objeto de la oración relativa, muchas veces podemos quitarlo.

the load (that) the bridge can support the software (that) they use the design (that) we chose

Truco: si después de that ya aparece otro sujeto, como the bridge, normalmente ese that puede omitirse.

🔊 AUDIO B1

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B1 | Practice

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Designing a Bridge

Vocabulary

• leads a team — lidera un equipo
• team of engineers — equipo de ingenieros
• modern bridge — puente moderno
• specialized software — software especializado
• strength of materials — resistencia de materiales
• structural options — opciones estructurales

• maximum load — carga máxima
• can support — puede soportar
• during a meeting — durante una reunión
• final design — diseño final
• conduct tests — realizan pruebas
• safety and stability — seguridad y estabilidad

Complete the sentence

Carlos leads a team of They use specialized They analyze the maximum They present the final They conduct tests before

Choose the correct answer

What kind of bridge are they designing? Choose An old bridge A modern bridge A wooden bridge Why do they use specialized software? Choose To simulate the strength of materials To choose the bridge color To reduce the budget Who do they present the final design to? Choose The builders The architects The students Why do they conduct tests? Choose To ensure safety and stability To finish faster To lower the cost

Build the sentence

Tap the words in the correct order:

present the They final design

Reading comprehension

1. What do the engineers simulate with the software?
2. What do they analyze before construction?
3. Why are tests important before building the bridge?

Translation practice

Translate into Spanish:

• Carlos leads a team of engineers designing a modern bridge.
• They evaluate different structural options and analyze the maximum load the bridge can support.
• Before construction, they conduct tests to ensure the structure’s safety and stability.

Translate into English:

• Carlos lidera un equipo de ingenieros que diseña un puente moderno.
• Utilizan software especializado para simular la resistencia de los materiales.
• Durante una reunión, presentan el diseño final a los arquitectos.

Reading and translation are bonus practice and are not included in the score.

B2 | UPPER-INTERMEDIATE

Carlos oversees the structural design of a steel bridge. His team calculates the forces that will act on the structure and selects the most suitable materials. To optimize the design, they run simulations using 3D modeling software. During a site inspection, they identify potential geotechnical challenges. After adjusting the design, they collaborate with foundation specialists to ensure the bridge has a solid base and can withstand extreme conditions.

B2 | INTERMEDIO ALTO

Carlos supervisa el diseño estructural de un puente de acero. Su equipo calcula las fuerzas que actuarán sobre la estructura y elige los materiales más adecuados. Para optimizar el diseño, realizan simulaciones con software de modelado 3D. En una inspección del sitio, identifican posibles desafíos geotécnicos. Tras ajustar el diseño, colaboran con especialistas en cimentación para garantizar que el puente tenga una base sólida y pueda resistir condiciones extremas.

🎵 He learned everything he knows at LecturaBilingue.com — the place where stories come alive. 🎵 Todo lo que sabe lo aprendió en LecturaBilingue.com, el lugar donde las historias cobran vida.

⏳ B2 | Past tense version Present → Past

La misma historia transformada al pasado. Los verbos que cambian aparecen destacados.

Carlos oversaw the structural design of a steel bridge. His team calculated the forces that would act on the structure and selected the most suitable materials. To optimize the design, they ran simulations using 3D modeling software. During a site inspection, they identified potential geotechnical challenges. After adjusting the design, they collaborated with foundation specialists to ensure the bridge had a solid base and could withstand extreme conditions.

Main changes

oversees→oversaw calculates→calculated will act→would act selects→selected run→ran identify→identified collaborate→collaborated has→had can withstand→could withstand

🧠 B2 | Grammar point that as the subject of a relative clause

En the forces that will act on the structure, that representa a the forces dentro de la segunda parte de la frase. Aquí that es el sujeto de will act.

Importante: cuando that es el sujeto de la oración relativa, no lo quitamos.

the forces that will act on it materials that can resist heat a bridge that has a solid base

Compáralo con B1: the load (that) the bridge can support permite omitir that; the forces that will act no.

🔊 AUDIO B2

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B2 | Practice

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Designing a Bridge

Vocabulary

• oversees the design — supervisa el diseño
• structural design — diseño estructural
• steel bridge — puente de acero
• calculates the forces — calcula las fuerzas
• act on the structure — actuarán sobre la estructura
• suitable materials — materiales adecuados
• optimize the design — optimizar el diseño
• run simulations — hacen simulaciones

• 3D modeling software — software de modelado 3D
• site inspection — inspección del sitio
• geotechnical challenges — desafíos geotécnicos
• adjusting the design — ajustar el diseño
• foundation specialists — especialistas en cimentación
• solid base — base sólida
• withstand extreme conditions — resistir condiciones extremas

Complete the sentence

Carlos oversees the structural His team calculates the They run simulations using 3D modeling During a site inspection, they identify geotechnical The bridge must have a solid

Choose the correct answer

What kind of bridge is Carlos working on? Choose A wooden bridge A steel bridge A stone bridge Why do they run simulations? Choose To decorate the bridge To optimize the design To paint the structure What do they identify during the site inspection? Choose Weather problems Traffic issues Geotechnical challenges Who do they collaborate with after adjusting the design? Choose Architects Foundation specialists Truck drivers

Build the sentence

Tap the words in the correct order:

run They simulations

Reading comprehension

1. What does Carlos’s team calculate before finalizing the design?
2. Why is the site inspection important for the project?
3. Why do they work with foundation specialists?

Translation practice

Translate into Spanish:

• Carlos oversees the structural design of a steel bridge.
• To optimize the design, they run simulations using 3D modeling software.
• After adjusting the design, they collaborate with foundation specialists.

Translate into English:

• Carlos supervisa el diseño estructural de un puente de acero.
• Su equipo calcula las fuerzas que actuarán sobre la estructura.
• Tras ajustar el diseño, colaboran con especialistas en cimentación.

Reading and translation are bonus practice and are not included in the score.

C1 | ADVANCED

Carlos leads the construction project for a suspension bridge in a seismic zone. His team analyzes the interaction between the structure and wind forces using computational fluid dynamics. In the planning phase, they assess the environmental impact and optimize the use of sustainable materials. During a technical review, they present strategies to improve the bridge’s seismic resistance without compromising its aesthetics and structural efficiency.

C1 | AVANZADO

Carlos dirige el proyecto de construcción de un puente colgante en una zona sísmica. Su equipo analiza la interacción entre la estructura y las fuerzas del viento utilizando dinámica de fluidos computacional. En la fase de planificación, evalúan el impacto ambiental y optimizan el uso de materiales sostenibles. Durante una revisión técnica, presentan estrategias para mejorar la resistencia sísmica del puente sin comprometer su estética y eficiencia estructural.

🎵 He learned everything he knows at LecturaBilingue.com — the place where stories come alive. 🎵 Todo lo que sabe lo aprendió en LecturaBilingue.com, el lugar donde las historias cobran vida.

⏳ C1 | Past tense version Present → Past

La misma historia transformada al pasado. Los verbos que cambian aparecen destacados.

Carlos led the construction project for a suspension bridge in a seismic zone. His team analyzed the interaction between the structure and wind forces using computational fluid dynamics. In the planning phase, they assessed the environmental impact and optimized the use of sustainable materials. During a technical review, they presented strategies to improve the bridge’s seismic resistance without compromising its aesthetics and structural efficiency.

Main changes

leads→led analyzes→analyzed assess→assessed optimize→optimized present→presented

🧠 C1 | Grammar point without + verb-ing

La historia habla de mejorar la resistencia sísmica without compromising la estética y la eficiencia. Después de without, cuando hablamos de una acción, usamos normalmente verbo-ing.

Estructura: without + verbo-ing.

without compromising aesthetics without increasing the weight without changing the design

En español: suele corresponder a «sin + infinitivo»: without compromising = «sin comprometer».

🔊 AUDIO C1

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C1 | Practice

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Designing a Bridge

Vocabulary

• leads the project — dirige el proyecto
• suspension bridge — puente colgante
• seismic zone — zona sísmica
• wind forces — fuerzas del viento
• computational fluid dynamics — dinámica de fluidos computacional
• planning phase — fase de planificación

• environmental impact — impacto ambiental
• sustainable materials — materiales sostenibles
• technical review — revisión técnica
• seismic resistance — resistencia sísmica
• structural efficiency — eficiencia estructural
• without compromising — sin comprometer

Complete the sentence

Carlos leads the construction project for a The bridge is in a seismic His team analyzes wind They assess the environmental They improve the bridge’s seismic

Choose the correct answer

What kind of bridge is Carlos working on? Choose A steel bridge A suspension bridge A stone bridge What does the team use to study the interaction with wind forces? Choose Computational fluid dynamics Architectural painting A public survey What do they evaluate in the planning phase? Choose The environmental impact Only the budget Daily traffic noise What do they want to avoid compromising? Choose The bridge color Its aesthetics and structural efficiency The work schedule

Build the sentence

Tap the words in the correct order:

assess They impact the environmental

Reading comprehension

1. Why is the location of the bridge especially challenging?
2. How does the team study the effect of wind on the structure?
3. Why is it important to improve seismic resistance without compromising other aspects of the bridge?

Translation practice

Translate into Spanish:

• Carlos leads the construction project for a suspension bridge in a seismic zone.
• His team analyzes the interaction between the structure and wind forces using computational fluid dynamics.
• During a technical review, they present strategies to improve the bridge’s seismic resistance.

Translate into English:

• Carlos dirige el proyecto de construcción de un puente colgante en una zona sísmica.
• Su equipo analiza la interacción entre la estructura y las fuerzas del viento.
• Durante una revisión técnica, presentan estrategias para mejorar la resistencia sísmica del puente.

Reading and translation are bonus practice and are not included in the score.

C2 | PROFICIENT

Carlos, an experienced structural engineer, designs a high-tech bridge using advanced materials such as carbon fiber and smart alloys. He evaluates the bridge’s behavior under dynamic loads and simulates its response to temperature variations. At an international conference, he presents his research on the use of artificial intelligence in structural optimization. He reflects on how modern engineering is redefining the limits of design and architectural functionality.

C2 | COMPETENTE

Carlos, un ingeniero estructural experimentado, diseña un puente de alta tecnología utilizando materiales avanzados como fibra de carbono y aleaciones inteligentes. Evalúa el comportamiento del puente bajo cargas dinámicas y simula su respuesta a variaciones de temperatura. En una conferencia internacional, presenta su investigación sobre el uso de la inteligencia artificial en la optimización estructural. Reflexiona sobre cómo la ingeniería moderna está redefiniendo los límites del diseño y la funcionalidad arquitectónica.

🎵 He learned everything he knows at LecturaBilingue.com — the place where stories come alive. 🎵 Todo lo que sabe lo aprendió en LecturaBilingue.com, el lugar donde las historias cobran vida.

⏳ C2 | Past tense version Present → Past

La misma historia transformada al pasado. Los verbos que cambian aparecen destacados.

Carlos, an experienced structural engineer, designed a high-tech bridge using advanced materials such as carbon fiber and smart alloys. He evaluated the bridge’s behavior under dynamic loads and simulated its response to temperature variations. At an international conference, he presented his research on the use of artificial intelligence in structural optimization. He reflected on how modern engineering was redefining the limits of design and architectural functionality.

Main changes

designs→designed evaluates→evaluated simulates→simulated presents→presented reflects→reflected is redefining→was redefining

🧠 C2 | Grammar point nominalisation in formal English

El nivel C2 usa expresiones como the use of artificial intelligence, structural optimization y architectural functionality. En inglés académico y técnico es frecuente convertir ideas o acciones en sustantivos: esto se llama nominalisation.

Idea: los sustantivos permiten condensar información y dar un tono más formal y técnico.

use → the use of AI optimize → optimization function → functionality

Matiz C2: la nominalización es muy útil en informes, investigación y textos técnicos, pero abusar de ella puede hacer el texto más pesado.

🔊 AUDIO C2

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C2 | Practice

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Designing a Bridge

Vocabulary

• structural engineer — ingeniero estructural
• high-tech bridge — puente de alta tecnología
• advanced materials — materiales avanzados
• carbon fiber — fibra de carbono
• smart alloys — aleaciones inteligentes
• dynamic loads — cargas dinámicas
• temperature variations — variaciones de temperatura

• international conference — conferencia internacional
• his research — su investigación
• artificial intelligence — inteligencia artificial
• structural optimization — optimización estructural
• modern engineering — ingeniería moderna
• architectural functionality — funcionalidad arquitectónica
• redefining the limits — redefiniendo los límites

Complete the sentence

Carlos is an experienced structural He designs a high-tech He simulates the response to temperature At an international conference, he presents his Modern engineering is redefining the

Choose the correct answer

What kind of engineer is Carlos? Choose A mechanical engineer A structural engineer An electrical engineer What advanced material is mentioned in the text? Choose Concrete Carbon fiber Wood What does Carlos present at the conference? Choose The project budget His research A construction contract What is artificial intelligence used for in the text? Choose Decorating the bridge Structural optimization Moving materials

Build the sentence

Tap the words in the correct order:

Carlos presents his research

Reading comprehension

1. Why are advanced materials important in Carlos’s bridge design?
2. What factors does he analyze to understand the bridge’s performance?
3. How does the text connect artificial intelligence with modern engineering?

Translation practice

Translate into Spanish:

• Carlos, an experienced structural engineer, designs a high-tech bridge using advanced materials.
• He evaluates the bridge’s behavior under dynamic loads and simulates its response to temperature variations.
• He reflects on how modern engineering is redefining the limits of design and architectural functionality.

Translate into English:

• Carlos, un ingeniero estructural experimentado, diseña un puente de alta tecnología.
• Presenta su investigación sobre el uso de la inteligencia artificial en la optimización estructural.
• Reflexiona sobre cómo la ingeniería moderna está redefiniendo los límites del diseño y la funcionalidad arquitectónica.

Reading and translation are bonus practice and are not included in the score.