Question

Me pueden ayudar por favor Lee el siguiente texto y marca las oraciones de Zero Conditional con color rojo. The relationship beetwen brain and muscles The brain constantly receives messages and reacts to those messages. If the message asks for movement, the brain sends electrical impulses down to nerve endings in your muscles via the spinal cord. If you want to lift your arm, your brain sends a message to the skeletal muscles in your arm. When the nerve endings receive these impulses, they stimulate the muscles into action. Skeletal muscles move bone, and they usually work in pairs. For example; if your biceps contracts your tríceps relaxes and your forearm rises. Conversely, if your tríceps contracts your biceps relaxes and your forearm lowers. The spinal cord is essential in this process. Impulses cannot reach the nerve endings if you cut the spinal cord. Skeletal muscles are sometimes called voluntary muscles because we can control their movements. They are regulated by the parts of the brain called the cerebral cortex and cerebellum. Involuntary muscles, on the other hand, do not need the brain to send them messages. They know their job and they keep doing it. They include, for example, the muscles in the heart, and the digestive system.​

Answer 1

Hola, Judith2194:

➤ EJERCICIO

Lee el siguiente texto y marca las oraciones de 'zero conditional' con color rojo.

The relationship beetwen❌ brain and muscles The brain constantly receives messages and reacts to those messages. If the message asks for movement, the brain sends electrical impulses down to nerve endings in your muscles via the spinal cord. If you want to lift your arm, your brain sends a message to the skeletal muscles in your arm. When the nerve endings receive these impulses, they stimulate the muscles into action. Skeletal muscles move bone, and they usually work in pairs. For example, if your biceps contracts[--]❌ your tríceps❌ relaxes and your forearm rises. Conversely, if your tríceps❌ contracts [--]❌ your biceps relaxes and your forearm lowers. The spinal cord is essential in this process. Impulses cannot reach the nerve endings if you cut the spinal cord. Skeletal muscles are sometimes called voluntary muscles because we can control their movements. They are regulated by the parts of the brain called the cerebral cortex and cerebellum. Involuntary muscles, on the other hand, do not need the brain to send them messages. They know their job and they keep doing it. They include, for example, the muscles in the heart, and the digestive system.​

NOTAS:

Hay algunos errores de ortografía y puntuación en este texto.

1. La forma correcta de escribir esta preposición es 'between'.

2. En inglés no hay tildes. La palabra 'triceps' solo lleva tilde en español (porque es una palabra grave o llana terminada en '-s' precedida de otra consonante: 'tríceps', 'bíceps', 'cómics', 'fórceps', etc.).

•  triceps (inglés) = tríceps (español)

3. Al igual que en español, en inglés, cuando las proposiciones subordinadas adverbiales de cualquier tipo —condicionales, concesivas, temporales, locativas, causales, etc.— están al principio de la oración, se separan de la oración principal por medio de una coma.

En el texto:

• For example, if your biceps contracts,✔️ your triceps✔️ relaxes and your forearm rises.

• Conversely, if your triceps✔️ contracts,✔️ your biceps relaxes and your forearm lowers.

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➤ RESPUESTA

Para identificar las 'zero conditional sentences', debemos buscar oraciones que contengan la conjunción 'if' (o 'when') y que tengan verbos en presente simple, tanto en la condición como en la oración principal.

Estas son las condicionales del tipo cero de este texto:

1. If the message asks for movement, the brain sends electrical impulses down to nerve endings in your muscles via the spinal cord.

• If-clause: If the message asks for movement

• Verb: asks ➙ present simple

• Main clause: the brain sends electrical impulses down to nerve endings in your muscles via the spinal cord

• Verb: sends down ➙ present simple

2. If you want to lift your arm, your brain sends a message to the skeletal muscles in your arm.

• If-clause: If you want to lift your arm

• Verb: want ➙ present simple

• Main clause: your brain sends a message to the skeletal muscles in your arm

• Verb: sends ➙ present simple

3. When the nerve endings receive these impulses, they stimulate the muscles into action.

• When-clause: When the nerve endings receive these impulses

• Verb: receive ➙ present simple

• Main clause: they stimulate the muscles into action

• Verb: stimulate ➙ present simple

4. For example, if your biceps contracts, your triceps relaxes and your forearm rises.

• If-clause: if your biceps contracts

• Verb: contracts ➙ present simple

• Main clause: your triceps relaxes and your forearm rises

• Verbs: relaxes, rises ➙ present simple

5. Conversely, if your triceps contracts, your biceps relaxes and your forearm lowers.

• If-clause: Conversely, if your triceps contracts

• Verb: contracts ➙ present simple

• Main clause: your biceps relaxes and your forearm lowers

• Verbs: relaxes, lowers ➙ present simple

6. Impulses cannot reach the nerve endings if you cut the spinal cord.  

​• If-clause: if you cut the spinal cord

• Verb: cut ➙ present simple

• Main clause: Impulses cannot reach the nerve endings

• Verb: cannot reach ➙ present simple – negative

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➤  ZERO CONDITIONAL SENTENCES

Estas oraciones condicionales tienen dos verbos en presente simple, uno en la condición (= 'if-clause') y otro en la oración principal (= 'main clause').

➜ Zero Conditional Sentences – Structure:

• If-clause ➙ Present simple

• Main clause ➙ Present simple

➜ Las condicionales de este tipo se usan para hablar de cosas que son siempre verdaderas, como hechos científicos, verdades generales o universales, etc.

➜ La conjunción 'if' (= si) puede sustituirse por 'when' (= cuando) sin cambio de significado.

Ejemplos:

• People die if they don't eat.

➺ La gente se muere si no come.

• If you heat ice, it melts.

➺ Si calientas el hielo, se derrite.

Saludos. ✨

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