Describe a Scientist You Admire: IELTS Speaking Part 2-Style Practice with the True Story of the Doctor Who Drank the Bacteria
Barry Marshall makes a memorable answer for "a scientist you admire". When the medical view was that ulcers came from stress, spicy food and acid, the Australian doctor drank a broth of H. pylori in 1984 to prove bacteria could infect the stomach. In 2005 he and Robin Warren won the Nobel Prize.
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What should you include when you describe a scientist?
A discovery, a reaction, and a proof. Most answers stop at the discovery; the card explicitly asks how people reacted at first, which is a story question — and stories are easier to hold for two minutes than findings. Here is the practice card, our own wording:
Describe a scientist whose work you admire.
You should say:
- who the scientist is
- what they discovered
- how other people reacted at first
and explain why you admire this person.
The scientist is Barry Marshall, the doctor who drank the bacteria. Read the story first — every claim on it is sourced.
Facts you’ll need — each one is checked, with its source, on the story page:
- 1981: met pathologist Robin Warren at Royal Perth Hospital; Warren had seen curved bacteria in samples
- Doctrine: ulcers from stress, spicy food and acid; no bacteria could live in the stomach
- 1982: first culture of H. pylori; the 31st sample stayed from Thursday to Monday and grew
- 1983: reviewers rated their paper in the bottom 10 percent
- 1984: after failed piglet experiments, Marshall drank a broth of H. pylori
- He hadn't told the ethics committee: "easier to get forgiveness than permission"
- Day 5–8: nausea, bad breath, vomiting; day 8: endoscopy showed massive inflammation; day 14: antibiotics
- 1994 NIH consensus: H. pylori eradication the key to ulcer treatment; 2005: Nobel Prize with Warren
Keep the medical story neutral and hedge-free of advice: this is a story about evidence, not a recommendation.
Do you need scientific vocabulary for this card?
A little, and it must be exact. H. pylori (say "H pylori" once, then "the bacteria"), inflammation, endoscopy, culture — five words, each doing work. Explaining one simply ("that means the bacteria finally grew in the lab") shows more range than stacking terms. If technical words make you restart sentences, drop them; fluency beats jargon on every card, a rule the Part 2 practice page repeats.
How do you tell Barry Marshall's story in two minutes?
Discovery, rejection, experiment, acceptance. One word per point in the preparation minute:
- Opener (~30 words)Barry Marshall, a doctor in Perth, Australia. Your part: how you heard about him.
- Discovery (~70 words)In 1981 at Royal Perth Hospital he met the pathologist Robin Warren, who had seen curved bacteria in stomach samples. The doctrine then was that ulcers came from stress, spicy food and acid, and that no bacteria could live in the stomach. In 1982 they cultured H. pylori for the first time — the 31st sample stayed on the bench from Thursday to Monday and grew.
- Rejection (~50 words)The reaction was disbelief. In 1983, reviewers rated their paper in the bottom 10 percent. Doctors disputed the work not on the science, Marshall wrote, but because they believed it could not be true.
- The experiment (~80 words)In 1984, after failing to infect piglets, Marshall drank a broth of the bacteria. He had not asked the ethics committee, and he said it would be easier to get forgiveness than permission. He developed nausea and vomiting; on day eight an endoscopy showed massive inflammation, and on day fourteen he began antibiotics — cured, and proved.
- Explain (~50 words)A 1994 NIH consensus made killing the bacteria the key to ulcer treatment, and in 2005 Marshall and Warren won the Nobel Prize. Ulcers are now cured with a short course of antibiotics. Your part: what you admire — and, if you want balance, a word on the risk he took.
About 219 words in total — 1:28 to 1:45 spoken at 125–150 words per minute.
| Card point | Your note |
|---|---|
| who the scientist is | Marshall, Perth |
| what they discovered | bacteria found |
| how other people reacted at first | drank it |
| and explain why you admire this person | Nobel |
One word per point, written in the preparation minute — never a sentence you could recite by accident.
How do you explain why you admire a scientist?
Name the quality and tie it to the act: persistence against conventional wisdom, and the nerve to test it on himself. Add the balance if you like — "whether that risk was wise is a fair question" — because a considered judgement scores better than hero worship. The same closing move works across cards:
- Describe a person you admireThe same story with the admiration explicit — Manjhi's page shows the person-card frame.
- Describe an interesting true story you heard or readThe self-experiment is a story: if the card turns narrative, tell it as one.
How to retell a story explains the close-the-book technique, and the methodology page shows how the facts in your retelling are checked against the sources.
How do you practise this answer out loud?
Read Marshall's story at your level, close it, write your four words, and record two minutes. The report covers pace, fillers, pauses and fact coverage — measurements computed in code, never a score or band. Retell it again tomorrow; this story rewards a steady second telling.
Tell the story of the doctor who drank the bacteria in two minutes.
Feedback on your pace, filler words, pauses, which key facts you covered, and the CEFR level of your vocabulary. Free to try, no card — and no score or band.
Questions and answers
Why did Barry Marshall drink bacteria?
To show that H. pylori could infect the stomach, after attempts to infect piglets failed. He developed stomach inflammation, supporting his and Robin Warren's discovery, and they won the Nobel Prize in 2005.
Is a famous scientist a good choice for IELTS Speaking Part 2?
Yes. A scientist with a clear discovery and a dramatic moment gives you an easy structure: what they found, how people reacted, and how they proved it.
How much technical vocabulary should I use?
A few accurate topic words are enough. Explain them simply. Clarity matters more than difficult terms.
Does SoulfulStories predict IELTS bands?
No. It is independent practice, not affiliated with IELTS. It reports pace, fillers, pauses, key facts covered and CEFR vocabulary.
Sources
Every outside fact on this page comes from the story’s cited sources, listed with their accessed dates on the story page.
- Barry Marshall — Wikipedia · accessed 25 October 2026
- Barry J. Marshall – Biographical — NobelPrize.org · accessed 25 October 2026
- IELTS Academic: Speaking test format — ielts.org · accessed 1 November 2026
Keep going
- IELTS Speaking Part 2 cue cardsPart 2-style practice cue cards backed by true, sourced stories, with a one-minute note grid and a model outline.
- IELTS Speaking Part 2 Practice: The Long Turn AloneA free, repeatable loop for the long turn: one minute of notes, two recorded minutes, one listen, one fix — with a worked cue card taken three ways.
- How to Retell a Story Out Loud: 5 Steps + a True StoryA five-step retelling method worked on one true story shown at its three reading levels — beginner, intermediate and advanced.
- MethodologyHow a retelling is measured and how every story is verified before it is published.
- The Doctor Who Drank the BacteriaTold his ulcer research was impossible, an Australian doctor drank a broth of the bacteria to prove it — and gave himself gastritis.
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