B1 — Lesson 14

The Human Body, Articles & Passive Voice

Bulgarian Suffixes vs English "The" · Generalisations & Ailments: Zero Article · Unique Organs & Possessives (My/Your) · The Action Exception · Passive Voice Formula & Agreement · By + Agent
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Vocabulary: The Human Body

B1 Focus: Learn the key vocabulary for talking about the human body — its parts, organs, and systems. These words appear throughout the reading, grammar examples, and exercises in this lesson.

Head & Face (Глава и лице)

Skull/skʌl/Череп
Brain/breɪn/Мозък
Jaw/dʒɔː/Челюст
Forehead/ˈfɔː.hed/Чело
Temple/ˈtem.pəl/Слепоочие
Cheek/tʃiːk/Буза
Chin/tʃɪn/Брадичка
Nostril/ˈnɒs.trəl/Ноздра

Torso & Limbs (Торс и крайници)

Spine / Backbone/spaɪn/Гръбначен стълб
Rib/rɪb/Ребро
Collarbone/ˈkɒl.ə.bəʊn/Ключица
Shoulder blade/ˈʃəʊl.də bleɪd/Лопатка
Elbow/ˈel.bəʊ/Лакът
Wrist/rɪst/Китка / Китка на ръката
Knuckle/ˈnʌk.əl/Кокалче (на пръст)
Thigh/θaɪ/Бедро
Shin/ʃɪn/Пищял
Ankle/ˈæŋ.kəl/Глезен
Heel/hiːl/Пета

Organs & Internal Systems (Органи и системи)

Heart/hɑːt/Сърце
Lung/lʌŋ/Бял дроб
Liver/ˈlɪv.ər/Черен дроб
Kidney/ˈkɪd.ni/Бъбрек
Stomach/ˈstʌm.ək/Стомах
Intestine/ɪnˈtes.tɪn/Черво
Bladder/ˈblæd.ər/Пикочен мехур
Immune system/ɪˈmjuːn ˌsɪs.təm/Имунна система

Joints, Muscles & Tissue (Стави, мускули и тъкани)

Joint/dʒɔɪnt/Става
Muscle/ˈmʌs.əl/Мускул
Tendon/ˈten.dən/Сухожилие
Ligament/ˈlɪɡ.ə.mənt/Връзка (лигамент)
Nerve/nɜːv/Нерв
Vein/veɪn/Вена
Artery/ˈɑː.tər.i/Артерия

Common Ailments (Чести оплаквания) B2 Level Up

A headache/ə ˈhed.eɪk/Главоболие
A stomach ache/ə ˈstʌm.ək eɪk/Болки в стомаха
A sore throat/ə sɔː θrəʊt/Възпалено гърло
High blood pressure/haɪ blʌd ˈpreʃ.ər/Високо кръвно налягане
Insomnia/ɪnˈsɒm.ni.ə/Безсъние

Passive Voice — Key Verbs (Важни глаголи за пасив)

Build / Built/bɪlt/Строи / построен
Discover / Discovered/dɪˈskʌv.əd/Открива / открит
Invent / Invented/ɪnˈvent.ɪd/Изобретява / изобретен
Publish / Published/ˈpʌb.lɪʃt/Публикува / публикуван
Deliver / Delivered/dɪˈlɪv.əd/Доставя / доставен
Repair / Repaired/rɪˈpeəd/Ремонтира / ремонтиран
Elect / Elected/ɪˈlekt.ɪd/Избира / избран
Arrest / Arrested/əˈrest.ɪd/Арестува / арестуван

Grammar Lab: Articles with Body Parts

Key concept: In Bulgarian, the definite article is attached to the end of the noun as a suffix (e.g. ръката, главата, коляното). In English, the article is always a separate word — the, a/an, or nothing at all (called the zero article). Knowing when English uses each choice is one of the biggest challenges for Bulgarian learners.

1. Bulgarian Suffixes vs English "The"

In Bulgarian, whether a noun is definite depends on its ending, which changes according to gender and number. In English, there is only one definite article — the — and it never changes.

This means that every Bulgarian definite suffix maps to exactly one English word: the.

Bulgarian Gender / Number Bulgarian Example English Translation
Masculine (-ът / -а) гръбнакът / носа the spine / the nose
Feminine (-та) ръката / главата the hand / the head
Neuter (-то) ухото / коляното the ear / the knee
Plural (-те / -та) очите / краката the eyes / the legs

⚠️ Important: Just because Bulgarian uses a definite suffix does not always mean English uses the. English has different rules for different situations — which is exactly what the rest of this Grammar Lab covers.

📝 Easy: Which article? Each sentence is about a body part. Read the context and choose the correct article — the, a possessive (my / his / her / their), or — (no article). Write your answer in the gap.
1. ___ spine runs from the base of the skull to the pelvis. [unique structure — general fact]
2. She sprained ___ wrist when she fell off her bike on the way to work.
3. The nurse patted the child on ___ head and told him the injection was over.
4. ___ bones lose density gradually if a person does not get enough calcium. [general fact]
5. He twisted ___ ankle badly on the wet pavement and had to be helped inside.
🎯 Hard: The or My/Your/His/Her? Choose the correct article for each gap. In some sentences the is correct; in others a possessive (my, his, her, etc.) is needed. See the possessive-vs-"the" explanation in Rule 3 below for guidance — but try these first.
1. He hurt ___ shoulder during training yesterday.
2. The physiotherapist took him by ___ hand and guided him through the exercise.
3. She twisted ___ ankle on the stairs and could barely walk.
4. The nurse patted the child on ___ head to calm him down.
5. I burned ___ hand on the cooker this morning.

2. The Zero Article: Generalisations & Ailments

In Bulgarian, when making a general statement about a category of things, the definite suffix is typically used: "Костите са здрави" (literally "The bones are strong" — but meaning "Bones are strong in general"). In English, this is exactly the opposite: when talking about all instances of something in general, plural or uncountable nouns take no article at all.

This is called the zero article (Ø). It is not a mistake — it is the correct choice for general truths, and it is the single most important article rule in this lesson.

✗ The lungs absorb oxygen from the air.
(This sounds as if you mean a specific pair of lungs — perhaps one patient's.)
✓ Ø Lungs absorb oxygen from the air.
(General scientific fact — no article needed.)

General facts → Zero article

  • "Ø Bones contain calcium."
  • "Ø Muscles need protein to repair."
  • "Ø Nerves carry signals to the brain."

Specific reference → Use "the"

  • "The bones in her foot were fractured." (her specific bones)
  • "The muscles around the knee were strained." (specific muscles)
📝 Easy: General or Specific? Add the or write — (zero article) in each gap.
1. ___ kidneys filter waste products from the blood. [general fact]
2. The surgeon examined ___ kidneys on the scan carefully. [specific — this patient's]
3. ___ tendons connect muscles to bones throughout the body. [general fact]
4. ___ tendons in his knee were badly damaged in the accident. [specific — his]
5. ___ arteries carry oxygenated blood away from the heart. [general fact]
🎯 Hard: The or —? Read each sentence carefully. Decide whether the plural noun refers to a general category (→ —) or to a specific, identified set (→ the).
1. ___ tendons in his right shoulder had been torn and needed surgical repair. [specific — his]
2. ___ tendons connect muscles to bones and can tear under sudden extreme force. [general fact]
3. ___ nerves in the lower back were being compressed by a slipped disc. [specific — this patient's]
4. ___ nerves carry electrical signals from the brain to every part of the body. [general fact]
5. The surgeon explained that ___ muscles surrounding the knee had weakened considerably. [specific — this patient's]

A specific application: ailments. The same generalisation principle explains why some illnesses take a/an and others take zero article. In Bulgarian, you say "имам болка" (I have pain) without an article. In English, many minor illnesses and symptoms are treated as countable events and require a/an — while ongoing conditions behave like the "general state" cases above and take zero article.

Think of it this way: a headache is something that happens to you — one specific episode, like an event. That is why it takes a. A condition like high blood pressure is not a single episode — it is an ongoing state with no clear "start" or "end", much like a generalisation, so it takes no article.

Use a / an for episodes & symptoms

  • "I have a headache."
  • "She has a sore throat."
  • "He caught a cold."
  • "She has a temperature / a fever."
  • "He has a stomach ache."
  • "She has a cough."

Use zero article (Ø) for conditions

  • "She has Ø high blood pressure."
  • "He suffers from Ø insomnia."
  • "She was diagnosed with Ø diabetes."
  • "He has Ø cancer."
  • Note: "the flu" is also common alongside "flu".
📝 Easy: A/An or Zero Article? Fill in the gap with a, an, or leave it blank (zero article). If no article is needed, type —.
1. I've had ___ terrible headache all morning.
2. She was diagnosed with ___ diabetes last year.
3. He woke up with ___ sore throat and couldn't swallow.
4. My grandfather has suffered from ___ insomnia for years.
5. The child has ___ high temperature — the GP says it might be a viral infection.
6. She's had ___ persistent cough for three weeks now.
🎯 Hard: Choose the Correct Option. Three options are given. Choose the one that is natural and correct in UK English.
1. He's been off work all week because he has ___ flu.
2. My back pain is ___ chronic condition — it has never fully gone away.
3. She took a painkiller because she had ___ splitting headache.
4. The doctor confirmed he had ___ cancer in the early stages.
5. After the long hike, both of them had ___ terrible blisters on their heels.

3. Scientific Specificity: Unique Organs (and the Possessive Contrast)

In Bulgarian, because the definite suffix is attached directly to the noun, sentences like "Нараних ръката" (literally "I hurt the arm") are perfectly natural. In English, however, this sounds strange in everyday contexts. English strongly prefers a possessive adjective (my, your, his, her, its, our, their) when referring to a body part that belongs to the subject of the sentence.

The simple test is: Is the body part attached to the person doing the action, in an everyday context? If yes, use a possessive.

✗ I hurt the arm.
✗ She broke the leg skiing.
✗ He raised the hand to ask a question.
✓ I hurt my arm.
✓ She broke her leg skiing.
✓ He raised his hand to ask a question.

Use a possessive when…

  • …the body part belongs to the subject: "She sprained her wrist."
  • …someone is acting on their own body: "He cut his finger."
  • …describing how someone feels: "My back is aching."

Exceptions — keep "the"

  • Action formula (Rule 4): "She grabbed him by the arm."
  • Unique organs as a concept: "The brain controls speech." (see below)
  • Scientific or medical context: "The femur is the longest bone."

The contrast — unique organs as a concept. When we refer to a single organ that performs a unique biological function — or a biological system of which there is only one in the body — we use the, even though the possessive rule above might tempt you otherwise. This is the case where English comes closest to the Bulgarian definite suffix: both languages are saying "this specific, well-known thing".

Key question: Is there only one of it in the body, or does it refer to a specific biological system (as a concept, not "your" one)? If yes → use the.

Unique single organs → the

  • "The heart pumps blood around the body."
  • "The brain controls all bodily functions."
  • "The liver processes toxins."
  • "The stomach produces digestive acid."

Biological systems → the

  • "The immune system fights infection."
  • "The nervous system relays signals."
  • "The digestive system breaks down food."
  • "The cardiovascular system includes the heart and blood vessels."

⚠️ Note on paired organs: Organs that come in pairs — kidneys, lungs, eyes, ears — follow Rule 2 (zero article for generalisations, the for specific reference), not this unique-organ rule. Only say "the kidney" if you mean a specific one, e.g. "The kidney on the left showed a small cyst."

📝 Easy: Possessive or "The"? Complete each sentence with the correct possessive adjective (my, his, her, our, their) or the.
1. She cut ___ finger while chopping vegetables.
2. He fell off his bike and bruised ___ knee badly.
3. I woke up with ___ neck completely stiff — I must have slept in a bad position.
4. The children grazed ___ knees when they fell off the climbing frame.
5. After the race, she could barely lift ___ arms above ___ head.
🎯 Hard: Error Correction. Each sentence contains a mistake with the article or possessive. Rewrite the sentence correctly.
1. "He dislocated the shoulder during the match." → Correct it:
2. "I twisted my ankle, so I went to A&E." — Is this correct? Type correct or rewrite it:
3. "She broke the wrist in two places." → Correct it:
4. "They both strained their backs lifting heavy boxes." — Is this correct? Type correct or rewrite it:
5. "I burnt my hand, so the nurse bandaged the hand for me." → Correct it (both clauses):
📝 Easy: The or —? Each sentence refers to a body organ. Decide whether to use the or no article (—). Write your answer in the gap.
1. ___ heart pumps blood around the body continuously. [unique organ — general truth]
2. ___ kidneys can be damaged by long-term use of certain painkillers. [paired organs — general truth]
3. ___ liver processes everything you eat and drink. [unique organ — general truth]
4. ___ lungs take in oxygen and release carbon dioxide with each breath. [paired organs — general truth]
5. ___ immune system responds to infection by producing antibodies. [unique system — general truth]
🎯 Hard: The, a/an, or Zero? Each gap involves a body organ. Think carefully: is this a general fact about a unique organ (→ the), a generalisation about a category (→ zero article), or a countable episode (→ a/an)?
1. ___ brain continues to develop until a person is in their mid-twenties. [unique organ — general truth]
2. ___ kidneys are responsible for regulating fluid balance in the body. [paired organs — general truth]
3. He had ___ transplant after his liver began to fail. [countable medical event]
4. ___ heart on the left side of the scan appeared enlarged. [specific — this patient's]
5. ___ lungs exchange carbon dioxide for oxygen with every breath. [general truth]

4. The "Action" Exception: Verb + Person + Preposition + The

There is one specific context where English uses the instead of a possessive — and this is the pattern that surprises most learners. It happens when an action is performed on a person's body via a preposition. In this structure, the body part belongs to the person mentioned, yet we still use the.

The formula: Verb + person + preposition + the + body part

✗ He hit me on my shoulder.
✗ She looked him in his eyes.
✗ The nurse took me by my hand.
✓ He hit me on the shoulder.
✓ She looked him in the eye.
✓ The nurse took me by the hand.

More examples

  • "She grabbed him by the arm."
  • "He patted her on the back."
  • "The ball hit him on the head."
  • "She kissed him on the cheek."

Why "the"?

  • The body part is already identified by who it belongs to (the person in the sentence).
  • Using "the" signals we are talking about a known, specific body part without repeating the possessive.
  • This is a fixed feature of English — it must be memorised.
📝 Easy: My/His/Her or The? Choose the correct article for each gap — a possessive or the.
1. The doctor tapped him on ___ knee to test his reflexes.
2. She grabbed him by ___ collar and pulled him away from the road.
3. He hurt ___ back lifting a heavy box at work. [no preposition — he acted on himself]
4. The physio held her by ___ elbow to help her stand up.
5. He looked her straight in ___ eye and apologised.
🎯 Hard: All Rules Together. Read each sentence and decide which rule applies. Fill in each gap with the, a possessive (my/his/her/their), or nothing (—).
1. She strained ___ shoulder at the gym and couldn't lift anything for a week. [possessive — she acted on herself]
2. The coach put his hand on ___ shoulder to calm the player down. [action formula — on + body part]
3. ___ spine protects the spinal cord and supports the entire upper body. [unique structure — general truth]
4. ___ joints can become stiff and painful as a result of prolonged inflammation. [general truth — plural]
5. He has ___ chronic pain in ___ lower back — it flares up whenever he sits for too long.

5. Passive Voice: Why We Use It & How to Form It

In an active sentence the subject is the person or thing doing the action: "The surgeon operated on the knee." In a passive sentence, the focus shifts to the thing being acted upon — the original object becomes the new subject: "The knee was operated on."

When to use the passive

  • Doer is unknown: "The patient's records were lost." (We don't know who lost them.)
  • Doer is unimportant: "The ward is cleaned every night." (Who does it doesn't matter.)
  • Doer is obvious: "He was rushed to hospital." (Obviously by paramedics.)
  • Formal / medical writing: "The X-rays were examined and the fracture was confirmed."
  • Avoiding personal blame: "A mistake was made with the dosage."
  • Topic focus: When the body part or patient is the topic, make it the subject.

The Bulgarian се problem

  • Bulgarian uses the reflexive particle се for passive meaning: "Костта лекува се" — literally "The bone treats itself."
  • In English this structure cannot exist. You must always use to be + past participle.
  • ✗ "The wound treats now."
  • ✗ "Bones repair."
  • ✓ "The wound is being treated now."
  • ✓ "Bones are repaired naturally by the body."

The formula:
Subject + to be (correct tense) + Past Participle (V3)

How to transform step by step:
1. Take the object of the active sentence — it becomes the new subject.
2. Change to be to match the original tense and the new subject.
3. Add the past participle (V3) of the main verb.
4. If needed, add by + agent at the end.

Active: "The surgeon examined her spine yesterday."
→ Object: "her spine" → becomes new subject
→ Tense: past simple → was
→ V3: examined
→ Passive: "Her spine was examined (by the surgeon) yesterday."

TenseActivePassiveFormula
Present SimpleThey X-ray the knee.The knee is X-rayed.is/are + V3
Past SimpleThey treated the wound.The wound was treated.was/were + V3
Present ContinuousThey are examining him.He is being examined.is/are being + V3
Past ContinuousThey were monitoring her.She was being monitored.was/were being + V3
Present PerfectThey have operated on him.He has been operated on.has/have been + V3
Past PerfectThey had discharged her.She had been discharged.had been + V3
Future (will)They will vaccinate him.He will be vaccinated.will be + V3
ModalThey must bandage it.It must be bandaged.modal + be + V3
📝 Easy: Active (A) or Passive (P)?
1. Her wrist was X-rayed after the fall. ___
2. The nurse was checking his pulse when I arrived. ___
3. The stitches have been removed. ___
4. They are monitoring his blood pressure. ___
5. The results will be announced tomorrow. ___
🎯 Hard: Write the passive verb phrase only (e.g. are delivered, was being built). Keep the same tense as the underlined verb.
1. The physio monitors his recovery every week. → His recovery ___
2. The surgeon repaired the torn ligament. → The torn ligament ___
3. They are examining the scan right now. → The scan ___
4. The consultant has diagnosed the condition. → The condition ___
5. Someone must bandage this cut immediately. → This cut ___

6. Subject–Verb Agreement in Passive Structures

When you form a passive sentence, the verb to be must agree with the new subject — the original object. Uncountable and singular nouns (like organs, or mass nouns such as equipment) take a singular verb; plural countable nouns take a plural verb.

Singular subject → SINGULAR verb

  • ✗ The spine were examined.
  • ✓ The spine was examined.
  • ✗ The equipment are being tested.
  • ✓ The equipment is being tested.

Plural countable subject → PLURAL verb

  • ✓ Her ribs were X-rayed.
  • ✓ The stitches have been removed.
  • ✓ His knees are examined regularly.
  • ✓ Three patients were discharged.

Unit + uncountable → agree with the UNIT

  • ✓ Two doses of medication were given.
  • ✓ A course of antibiotics was prescribed.
  • ✓ Several items of equipment were sterilised.
📝 Easy: Choose is/are or was/were.
1. The equipment ___ sterilised before every operation. (present)
2. Her ribs ___ X-rayed immediately after the accident. (past)
3. All the medication ___ checked before it is given to a patient. (present)
4. The stitches ___ removed after ten days. (present)
5. His blood pressure ___ monitored throughout the night. (past)
🎯 Hard: Correct the agreement error. Write the correct word only.
1. The equipment were not sterilised properly. → correct verb:
2. Her knees was examined by the specialist. → correct verb:
3. All the medication were stored in the fridge. → correct verb:
4. Several stitches has been removed already. → correct verb:
5. His blood pressure are taken every hour. → correct verb:

7. Passive with Agent: "by + agent"

Once you have formed a passive sentence, you can mention who or what performed the action by adding by + agent at the end. In natural English, the agent is only included when it provides information that is meaningful and non-obvious.

✓ Include the agent when it adds real value

  • Famous or surprising doer: "Penicillin was discovered by Alexander Fleming."
  • Unexpected doer: "Her leg was set by a passing paramedic."
  • The doer is the focus: "He was operated on by the top surgeon in the hospital."
  • Formal contrast or attribution: "The diagnosis was confirmed by a second specialist, not the GP."

✗ Omit the agent when it adds nothing

  • Doer is unknown: "His wallet was stolen."
  • Doer is obvious: "She was rushed to A&E." — Clearly by paramedics.
  • Doer is people in general: "Broken bones are treated with a cast."
  • Doer is unimportant: "The prescription has been issued." — Focus is on the prescription.

Grammar note — by vs. with:
By introduces the agent — the person who performed the action.
With introduces the instrument — the tool used.
"The wound was cleaned by the nurse with an antiseptic solution."

📝 Easy: Write the full passive sentence with the agent shown in brackets.
1. Penicillin was discovered. [Alexander Fleming] →
2. The operation was performed. [a leading heart surgeon] →
3. The vaccine was developed. [a team of researchers] →
4. Her fracture was treated. [an orthopaedic specialist] →
5. The X-ray was reviewed. [a radiologist] →
🎯 Hard: Include or Omit? Decide whether the agent in brackets should be included or omitted in natural English.
1. "His bag was stolen [by someone unknown]." → Agent:
2. "The vaccine was developed [by Edward Jenner]." → Agent:
3. "He was rushed to hospital [by the paramedics — obvious]." → Agent:
4. "The award for the breakthrough was presented [by the head of the research council]." → Agent:
5. "This medication has been tested [by the manufacturer — unimportant]." → Agent:

Passive Voice Practice: Active → Passive Transformation

Rewrite each active sentence in the passive voice. Keep the same tense. Include the agent only when shown in brackets. Type the full passive sentence.

Set 1 — Present Simple & Past Simple

✏️ Rewrite in the passive. Keep the tense.
1. The cleaner cleans the ward every morning.
2. The hospital collects patient records on admission.
3. They treat fractures at this clinic.
4. Fleming discovered penicillin. [by Fleming]
5. The paramedics treated three patients last night.
6. A specialist designed this exercise programme. [by a specialist]
7. They prescribe antibiotics for this infection.
8. Someone stole my crutches from the ward.
9. The clinic announces appointment times every week.
10. They elected a new head of the hospital board last month.

Set 2 — Present Continuous & Past Continuous

✏️ Rewrite in the passive. Keep the continuous tense.
1. Nurses are monitoring his heart rate.
2. They are interviewing candidates for the surgeon post all afternoon.
3. The physio is preparing a new stretching routine.
4. They were building a new wing when the funding was cut.
5. The nurse was checking his blood pressure all night.
6. They are testing the new scanner right now.
7. The technicians were installing new equipment when the fire alarm sounded.
8. Someone is watching the ward camera feed at all times.
9. They were investigating the complaint when he was discharged.
10. The radiologist is examining the scans now.

Set 3 — Present Perfect & Past Perfect

✏️ Rewrite in the passive. Keep the perfect tense.
1. They have already published the research.
2. Someone has broken the equipment in the gym.
3. The board has approved all three new treatments.
4. They had completed the surgery before the shift ended.
5. Someone had already administered the medication by the time she arrived.
6. The scientists have discovered a new treatment.
7. They had warned the patients before the ward closed.
8. The court has convicted two of the defendants.
9. Nobody had repaired the wheelchair before the inspection.
10. They have recently updated the hospital's website.

Set 4 — Future (will) & Modal

✏️ Rewrite in the passive. Keep the future or modal.
1. They will announce the results tomorrow.
2. Someone must fix the broken bed immediately.
3. You should submit all forms by Friday.
4. They will deliver the new equipment next week.
5. Doctors can treat this condition with physiotherapy.
6. They will open the new ward in spring.
7. You must not remove the bandage yourself.
8. People can recycle most medical packaging at the centre.
9. They will replace all the old hospital beds next month.
10. You should not use your phone during the scan.

Set 5 — Mixed Tenses

✏️ Mixed exercise. Decide the tense from context, then write the full passive sentence.
1. They invented the stethoscope in the 19th century.
2. The lab is currently reviewing all the blood samples.
3. They had already signed the consent form before the operation.
4. Someone will repair the wheelchair next week.
5. The nurse checks the charts every Friday.
6. They were filming a documentary in the ward when we arrived.
7. The hospital has admitted over two hundred patients this week.
8. You must complete this consent form in black ink.
9. Alexander Fleming discovered penicillin in 1928. [by Alexander Fleming]
10. They have not yet resolved the dispute over the diagnosis.

Reading: The Human Body

Read both texts. Pay attention to how articles are used with body parts and conditions. Comprehension questions follow each text.
🦴

Text 1 — Listening to Your Body

Most people ignore minor aches and pains, hoping they will go away on their own. A sore shoulder here, a stiff knee there — nothing serious, we tell ourselves. But the body is constantly sending signals, and learning to read them can make a real difference. I first noticed something was wrong when I woke up one morning and couldn't turn my head. The muscles in my neck were completely locked. My GP referred me to a physiotherapist, who explained that years of sitting at a desk with poor posture had gradually tightened the tendons in my upper back and neck. The spine, she told me, is not simply a rigid structure — it is a dynamic system that relies on the surrounding muscles and ligaments for support. When those muscles weaken, the vertebrae begin to press on the nerves, causing pain and stiffness. She showed me a diagram and pointed to the area of my spine that was most affected. She then took me by the shoulder and helped me into the correct posture. "Bones don't lie," she said, pressing gently on my shoulder blade. "Your body is telling you exactly what it needs — you just need to listen." Within three weeks of daily exercises, the pain had reduced significantly. I had a mild ache in my lower back for another fortnight, but that faded too. The lesson I took away was simple: prevention is always better than cure, and small daily habits — good posture, regular movement, and adequate rest — are what keep the musculoskeletal system working well.

Comprehension Questions — Text 1

1. What was the writer's initial symptom?

2. According to the physiotherapist, what had caused the problem?

3. How did the physiotherapist help the writer adopt the correct posture? (Detail)

4. What is the main message of the text?

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Text 2 — How the Body Defends Itself

The human body is, in many ways, an extraordinary self-repairing machine. When you get a cut, the blood begins to clot within minutes. When a virus enters the bloodstream, the immune system mobilises millions of cells to identify and destroy the invader. When a bone is fractured, new bone tissue begins to grow almost immediately. At the centre of all this activity is the brain. The brain does not simply control voluntary movement — it monitors every organ, adjusts hormone levels, regulates body temperature, and even influences how quickly the heart beats. A healthy brain is essential to a healthy body. Yet many people take care of their muscles and joints while paying very little attention to their brain. Sleep, in particular, is when the brain clears itself of waste proteins that accumulate during the day. People who suffer from insomnia or who consistently sleep fewer than six hours a night put significant strain on the nervous system. The heart, like the brain, rewards consistent care. Cardiovascular disease — a term that covers conditions affecting the heart and blood vessels — is the leading cause of death worldwide. The good news is that many of the risk factors are manageable: regular physical activity, a balanced diet, not smoking, and maintaining a healthy weight all contribute to keeping the cardiovascular system in good condition. As one cardiologist put it, tapping the table with her finger: "The heart does not ask for much. It asks for movement, rest, and a little respect."

Comprehension Questions — Text 2

1. Which of the following is NOT mentioned as something the brain does?

2. According to the text, what happens during sleep?

3. What does the writer mean by calling the body "an extraordinary self-repairing machine"? (Inference)

4. What is the cardiologist's main point at the end of the text?

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Cloze Text: The Body & Articles

Read both texts carefully. Choose one word or phrase from the box for each gap. There are 16 words in the box but only 14 gaps — two words will not be used. Each word may be used only once.
Word box:   the knee  ·  his shoulder  ·  the shoulder  ·  a headache  ·  the brain  ·  — muscles  ·  the immune system  ·  her wrist  ·  a sore throat  ·  the liver  ·  insomnia  ·  a cold  ·  — tendons  ·  the eye  ·  the spine  ·  the lungs

Text 1 — A Busy Week at the Clinic

It had been an exhausting week at the physiotherapy clinic. On Monday, a teenage footballer came in with swelling in (1) after a bad tackle — the joint had not been fractured, thankfully, but the surrounding (2) were badly strained. On Tuesday, a retired teacher arrived complaining of stiffness in (3) — years of poor posture had finally taken their toll. On Wednesday, a young mother came in rubbing (4) — she had fallen awkwardly and suspected a fracture. And on Thursday, a delivery driver needed (5) assessed after he had been grabbed by (6) during a road rage incident. By Friday, the physio herself had (7) and was ready for the weekend.

Text 2 — A Science Lesson

The biology teacher held up a diagram of the human body and began her lesson. "Let's start with (8)," she said, pointing to the head. "It controls everything — thought, movement, sensation." She moved on to (9), explaining how they exchange oxygen and carbon dioxide with each breath. "And here," she said, tapping the diagram, "is (10) — one of the most hardworking organs in the body." One student asked whether drinking alcohol really damaged it. "Absolutely," she said, looking the student in (11). She then explained that (12) need regular use to stay strong — without movement, they weaken and shrink. She ended by talking about (13), which she described as the body's personal defence force — constantly on alert. A student at the back sneezed loudly. "You might want to look after yours," she said with a smile, "before you give everyone else (14)."

Key Word Transformation (KWT)

How it works: Each item gives you a sentence, then a key word in capitals. Use that key word to complete the second sentence so it means the same as the first. Write 2–5 words in the gap — the key word must be included and must not be changed. Articles, possessives, and word order all count.

Exercises: Articles with Body Parts

A series of targeted exercises covering all seven grammar rules. Work through them in order — each one focuses on a different aspect of the lesson.

Tense Writing

Put the verb in brackets into the correct tense. Read the context clues in each sentence carefully. Tenses covered: Present Simple, Present Continuous, Present Perfect Simple, Present Perfect Continuous, Past Simple, Past Continuous, Past Perfect Simple, Past Perfect Continuous, Future with will / going to / Present Continuous.
📝 Exercise 1 (1–10)
1. The brain ___ (control) all voluntary and involuntary functions in the body. [general fact]
2. She ___ (have) a terrible headache since she woke up this morning.
3. He ___ (fall) and break his wrist during a hiking trip last weekend.
4. When the doctor arrived, the patient ___ (already / lose) consciousness.
5. The physiotherapist ___ (examine) her spine carefully when the X-ray results came through.
6. Muscles ___ (need) regular exercise to stay strong and avoid atrophy. [general fact]
7. He ___ (complain) about a pain in his lower back for months — the GP has finally referred him.
8. She ___ (run) for over an hour when she felt a sharp pull in her left knee.
9. Ligaments ___ (connect) bone to bone and help stabilise joints. [general fact]
10. I ___ (see) the specialist next Thursday — my GP made the referral this morning. [confirmed plan]
📝 Exercise 2 (11–20)
1. The heart ___ (pump) roughly five litres of blood per minute at rest. [general fact]
2. He ___ (not / eat) anything since yesterday evening — he has been feeling nauseous all day.
3. She ___ (work) as a cardiologist for twelve years before moving into research.
4. The immune system ___ (produce) antibodies whenever it detects a foreign pathogen. [general fact]
5. He ___ (sit) in the waiting room for forty minutes when the consultant finally called his name.
6. The consultant ___ (currently / review) the scan results — she will be with you shortly.
7. She ___ (already / visit) three different specialists by the time she received a diagnosis.
8. Tendons ___ (attach) muscle to bone and can tear under sudden extreme force. [general fact]
9. The surgeon ___ (operate) on the damaged knee joint for over three hours yesterday.
10. He ___ (take) anti-inflammatory medication for a week now and the swelling has reduced noticeably.
🎯 Exercise 3 (21–30)
1. She ___ (not / sleep) properly for over a week — the pain in her back keeps waking her up.
2. Nerves ___ (carry) electrical signals between the brain and the rest of the body. [general fact]
3. The nurse ___ (wrap) his ankle carefully when the doctor walked in to inspect it.
4. By the time the ambulance arrived, she ___ (already / break) two ribs in the fall.
5. The hospital ___ (open) a new orthopaedic ward next month — the funding was confirmed last week. [confirmed future plan]
6. She ___ (miss) three physiotherapy sessions this month — her recovery is falling behind schedule.
7. Veins ___ (return) deoxygenated blood to the heart from the rest of the body. [general fact]
8. He ___ (train) intensively for six months before he tore the ligament in his left knee.
9. She ___ (recover) well — the consultant says she can return to light exercise next week.
10. I ___ (feel) a sudden sharp pain in my chest yesterday afternoon, so I went straight to A&E.
🎯 Exercise 4 (31–40)
1. The liver ___ (filter) toxins from the blood continuously throughout the day. [general fact]
2. He ___ (not / see) this specialist since his surgery two years ago.
3. The patient ___ (lie) still on the table for over an hour when the anaesthetic finally wore off.
4. She ___ (study) anatomy for three years before she realised she wanted to specialise in neurology.
5. The physio ___ (show) him the stretches slowly and carefully so he could follow along.
6. Arteries ___ (become) narrower with age if a person has a high-fat diet. [general fact]
7. She ___ (take) the new medication for five days now and she already feels a significant difference.
8. He ___ (never / have) surgery before this procedure, so he was understandably nervous.
9. The hospital ___ (treat) over three hundred patients during the cold snap last January.
10. The consultant ___ (write) up her notes when the emergency call came in from the ward.
🎯 Exercise 5 (41–50)
1. She ___ (not / exercise) at all for six weeks after the injury, which weakened her muscles considerably.
2. The spine ___ (support) the full weight of the upper body and protect the spinal cord. [general fact]
3. He ___ (wait) for his MRI results for over three weeks when the letter finally arrived.
4. The ward doctor ___ (check) all patients' charts before the morning briefing — she does this every day. [habitual]
5. By the time the specialist arrived, the swelling in his ankle ___ (spread) up to the shin.
6. She ___ (suffer) from chronic insomnia for two years before a sleep specialist finally identified the cause.
7. I ___ (go) for a check-up next week — I booked it after the GP suggested it at my last appointment. [confirmed plan]
8. Antibiotics ___ (not / work) against viral infections — they are only effective against bacteria. [general fact]
9. He ___ (already / miss) two follow-up appointments this month — the clinic has sent him a final reminder.
10. She ___ (just / have) a blood test and is waiting for the results to come back.

Gerund vs Infinitive

Gerund (-ing) only: avoid, suggest, finish, mind, risk, imagine, delay, consider, keep, practise
Infinitive (to + verb) only: decide, hope, manage, refuse, offer, promise, fail, afford, agree, need
Both possible (same meaning): start, begin, continue, hate, prefer
Meaning changes: stop, remember, forget, try, regret
📝 Set 1: Gerund-Only Verbs. These verbs are always followed by the gerund (-ing). Type the correct form.
1. He avoids ___ (put) weight on his injured ankle.
2. The physio suggested ___ (do) the stretches every morning.
3. She finished ___ (bandage) his wrist carefully.
4. He keeps ___ (postpone) his check-up appointment.
5. I can't imagine ___ (live) with constant back pain.
6. She risks ___ (damage) the ligament further if she keeps running.
📝 Set 2: Infinitive-Only Verbs. These verbs are always followed by the infinitive (to + verb). Type the correct form.
1. She decided ___ (see) a specialist about her knee.
2. He hopes ___ (recover) fully before the marathon.
3. She managed ___ (walk) without crutches after two weeks.
4. He refused ___ (take) any painkillers.
5. I need ___ (check) my blood pressure this week.
6. They agreed ___ (follow) the physio's instructions exactly.
📝 Set 3: Both — Same Meaning. These verbs (start, begin, continue, hate, prefer) can take either the gerund or the infinitive with no change in meaning. Either form is correct.
1. She started ___ (feel) better after the operation.
2. He hates ___ (be) X-rayed — he finds it unpleasant.
3. They continued ___ (monitor) her heart rate for hours.
4. She prefers ___ (do) her exercises at home.
5. He began ___ (notice) the swelling had gone down.
🎯 Set 4: STOP / REMEMBER / FORGET / TRY / REGRET. These verbs change meaning depending on whether they take a gerund or an infinitive. Choose carefully.
1. He stopped ___ (take) painkillers once the pain had gone. [he no longer takes them]
2. She stopped ___ (check) his pulse before continuing. [she paused in order to check]
3. Remember ___ (bring) your X-rays to the appointment. [don't forget to do it]
4. I remember ___ (break) my arm as a child. [a memory of the past]
5. Don't forget ___ (take) your medication tonight. [a future task]
6. She'll never forget ___ (wake) up after the surgery. [a memory that stays]
7. He tried ___ (move) his injured shoulder slowly. [he made an attempt]
8. She regrets ___ (not / rest) her ankle properly after the sprain. [she wishes she had]
🎯 Set 5: Mixed Practice. Put the verb in brackets into the correct form — gerund or infinitive.
1. She enjoys ___ (help) patients with their recovery.
2. He decided ___ (change) his diet after the diagnosis.
3. They avoid ___ (discuss) the prognosis in front of the patient.
4. My colleague hopes ___ (specialise) in orthopaedics this year.
5. She keeps ___ (forget) to take her medication on time.
6. He managed ___ (finish) the course of physiotherapy successfully.
7. They suggested ___ (try) a different treatment altogether.
8. She refused ___ (give) up her daily walk despite the pain.

Error Correction

Each sentence contains one error. Find it and type the corrected sentence. Type correct if there is no error.

A. Possessive vs "The" with Body Parts

Check whether the body part belongs to the subject of the sentence (→ possessive) or whether the action formula applies (→ the).

🔧 Find the error. Type the corrected sentence — or type correct.
1. "She broke the wrist while skiing."
2. "He dislocated his shoulder during training."
3. "The doctor tapped him on his knee to test his reflexes."
4. "I burnt the hand on the cooker this morning."
5. "She grabbed him by his arm to stop him falling."

B. A/An vs Zero Article for Ailments

Check whether the ailment is a single countable episode (→ a/an) or an ongoing condition (→ zero article).

🔧 Find the error. Type the corrected sentence — or type correct.
1. "She was diagnosed with a diabetes last year."
2. "He has had headache all morning."
3. "My grandfather has suffered from insomnia for years."
4. "She woke up with sore throat."
5. "He's been off work all week because he has a flu."

C. Zero Article Generalisations

Check whether the plural noun is a general fact (→ zero article) or a specific, identified group (→ the).

🔧 Find the error. Type the corrected sentence — or type correct.
1. "The lungs absorb oxygen from the air." (general fact)
2. "Bones in her foot were fractured." (specific — her bones)
3. "The muscles need protein to repair." (general fact)
4. "The tendons in his knee were badly damaged in the accident." (specific — his)
5. "Arteries carry oxygenated blood away from the heart." (general fact)

D. Passive Voice Formation

Check that the passive uses to be + past participle in the correct tense — never a bare active verb form or a missing "be".

🔧 Find the error. Type the corrected sentence — or type correct.
1. "Her wrist X-rayed after the fall."
2. "The results will announced tomorrow."
3. "The scan is examining right now."
4. "This cut must bandaged immediately."
5. "The condition has been diagnosed."

E. Passive Agreement & "by + agent"

Check that the verb to be agrees with the new (passive) subject, and that "by + agent" is included only when it adds real information.

🔧 Find the error. Type the corrected sentence — or type correct.
1. "The equipment were sterilised before the operation."
2. "Her ribs was X-rayed immediately."
3. "Penicillin was discovered by Alexander Fleming."
4. "His bag was stolen by someone unknown."
5. "This medication has been tested by the manufacturer that makes it."