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Reading Worksheet

Inventions That Shaped the Present

C1 Mixed Conditionals: Historical Causes, Present Consequences Science and Technology 25 minutes
Before You Read

Discuss these questions with a partner before you read.

  • What do you think is the most important invention in human history? Why?
  • Can you think of a modern technology that, if it disappeared tomorrow, would completely change how people live?
  • Do you think important discoveries happen by accident, by design, or both? Can you give an example?
  • What invention from the last 50 years do you think will still be shaping the world in 500 years?
Key Vocabulary
Word Definition Example
fragmented (adj.) divided into separate, unconnected parts Without the web, the digital world might be fragmented into private, isolated networks.
contaminated (adj.) made impure or harmful through contact with a polluting substance Fleming noticed the contaminated petri dish by chance and made a world-changing discovery.
norm (n.) something considered standard, typical, or expected within a society Equal access to information is now the norm in many countries.
movable type (n.) a printing system using individual, repositionable letter blocks to compose text Gutenberg invented movable type in 1440, transforming the spread of knowledge.
literacy (n.) the ability to read and write Mass literacy emerged gradually as printing made books more widely available.
commercialise (v.) to organise or develop something primarily to generate profit The web was not commercialised from the start — Berners-Lee released it as a free resource.
Reading Text
Magazine Article ~335 words

Inventions That Shaped the Present

History is full of turning points. But some inventions did not merely change the era in which they appeared — they created the conditions for everything that followed. Three examples illustrate how radically different our present world would be if certain past discoveries had not occurred.

In 1991, Tim Berners-Lee released the World Wide Web as a free, open resource. It was a decision of extraordinary consequence. If he had not released it freely, the digital world would look entirely different today. We might be living in a fragmented landscape of competing private networks, each controlled by a corporation. If the web had been commercialised from the start, equal access to information would not be the norm it is today — for better or worse. Had the internet remained a closed military system, the global knowledge economy would look unrecognisable today.

In 1928, Alexander Fleming noticed something unusual in his laboratory: mould was killing bacteria on a contaminated petri dish. The observation led to the development of penicillin. If Fleming had not noticed that petri dish, modern medicine would still be fighting infections that are now entirely routine to treat. Millions of people who are alive today would not be here if antibiotics had not been developed. If the discovery had been delayed by just a decade, the Second World War would have had a very different death toll — and a very different outcome.

In 1440, Johannes Gutenberg invented movable type, making it possible to print books in large quantities for the first time. If Gutenberg had not invented movable type, the Protestant Reformation might not have taken hold as it did — Martin Luther's ideas spread because they could be printed and distributed rapidly. If mass literacy had not emerged from printing, the educated middle class that drives modern democracy would simply not exist.

Each of these inventions did not merely change its era — it created the conditions for our present world. The mixed conditional makes this visible: if they had not occurred, we would not be who we are. The past and the present are not separate. They are the same sentence.

Notice the Grammar

Before reading, look at this sentence: 'If Fleming had not noticed that petri dish, modern medicine would still be fighting infections.' Which clause describes the past? Which describes the present? What do you notice about the verb tenses used?

1 Reading for Gist

Answer each question in a few words or a short phrase.

  1. What three inventions does the article focus on?
  2. What central argument does the article make about these inventions?
  3. What does the writer say the mixed conditional makes visible?
2 Reading for Detail

Write short answers based on the article.

  1. Why does the article suggest equal access to information might not exist today if the web had been commercialised?
  2. How did Fleming discover penicillin?
  3. According to the article, what role did the printing press play in the Protestant Reformation?
  4. Which sentence correctly uses a mixed conditional to describe the web's development?  a) If the web had been commercialised, equal access would have been impossible now. b) If the web had been commercialised, equal access would be impossible now. c) If the web was commercialised, equal access would be impossible now. 
  5. What does the final sentence — 'The past and the present are not separate. They are the same sentence.' — mean in the context of the article?
3 True, False, or Not Given

Write T (True), F (False), or NG (Not Given) for each statement. If False, correct the statement.

  1. Tim Berners-Lee invented the internet in 1991.
  2. Fleming made his discovery of penicillin deliberately, as part of a planned experiment.
  3. The article suggests antibiotics affected the outcome of the Second World War.
  4. Gutenberg's printing press was the sole cause of mass literacy in Europe.
  5. The article argues that the mixed conditional is a useful tool for analysing historical cause and effect.
4 Vocabulary in Context

Answer the following questions about words and phrases from the article.

  1. The article describes the release of the web as 'a decision of extraordinary consequence'. What does 'consequence' mean in this context?  a) Punishment or penalty for an action. b) A result or effect, especially an important one. c) A logical contradiction or inconsistency. 
  2. The article says the web 'would look unrecognisable today' without Berners-Lee's decision. What does 'unrecognisable' suggest about the scale of the change?
  3. Find a word in paragraph 3 that means 'normal and not needing special attention or effort'. 
  4. The article says democracy is driven by 'the educated middle class'. What does 'drives' mean here? Write your own explanation.
5 Grammar in Context

Complete these activities about mixed conditionals.

  1. Find four mixed conditional sentences from the article. For each one, label (a) the if-clause tense and (b) the result clause form.
    a)  b)  c)  d) 
  2. The article states: 'Millions of people who are alive today would not be here if antibiotics had not been developed.' Analyse this sentence: which part is the if-clause and which tense does it use? What does the result clause express?
  3. Which sentence correctly uses a mixed conditional?  a) If the web had been commercialised, equal access would have been impossible now. b) If the web had been commercialised, equal access would be impossible now. c) If the web was commercialised, equal access would be impossible now. 
  4. Rewrite the following as mixed conditionals. (a) 'Penicillin was discovered. Modern medicine can treat infections routinely.' → 'If penicillin _____ not _____, medicine _____ still _____ infections routinely.' (b) 'The printing press was invented. Mass literacy exists today.' → 'If Gutenberg _____ not _____ movable type, mass literacy _____ not _____ today.'
  5. Choose one invention not mentioned in the article. Write three mixed conditional sentences showing how its absence in the past would affect the present world.
Personal Response — Discuss with a partner

Discuss these questions with a partner. Share one idea with the class.

  1. If you could remove one invention from history, which would it be, and what would the world look like today? Use a mixed conditional to frame your answer.
  2. The article says 'for better or worse' about open access to information. What does it mean? Do you agree that equal access to information has downsides?
  3. Do you think the next great invention has already been made — or is it still to come? What might it be?

Answer Key

Inventions That Shaped the Present — C1 — Mixed Conditionals: Historical Causes, Present Consequences

Exercise 1 — Reading for Gist

  1. The World Wide Web (internet), penicillin, and the printing press (movable type).
  2. They did not just change their own era — they created the conditions for the present world as it exists today.
  3. That the past and present are connected — if these inventions had not occurred, we would not be who we are.

Exercise 2 — Reading for Detail

  1. If it had been commercialised from the start, access would have been controlled and sold rather than open and free.
  2. He noticed mould killing bacteria on a contaminated petri dish in his laboratory.
  3. It allowed Luther's ideas to be printed and distributed rapidly, helping them spread and take hold.
  4. b)
  5. Each past invention is still active in the present — the conditions they created still shape our world today. Past and present are causally linked, not distinct.

Exercise 3 — True, False, or Not Given

  1. F — He released the World Wide Web (not the internet itself) as a free resource in 1991. The internet had existed earlier as a military network.
  2. F — He noticed it by chance — the article describes it as an unusual observation, not a planned outcome.
  3. T — 'If the discovery had been delayed by just a decade, the Second World War would have had a very different death toll — and a very different outcome.'
  4. NG — The article connects printing to mass literacy but does not claim it was the only cause.
  5. T — 'The mixed conditional makes this visible: if they had not occurred, we would not be who we are.'

Exercise 4 — Vocabulary in Context

  1. b)
  2. It suggests the change would be so great that the web — or the digital world — would be completely different from what we know; we would not be able to identify it as the same thing.
  3. routine
  4. Here 'drives' means powers, sustains, or is the engine of — the educated middle class is the force that keeps modern democracy functioning. It is a metaphorical use, comparing democracy to a machine.

Exercise 5 — Grammar in Context

  1. e.g. 'If he had not released it freely' (a: past perfect — unreal past), 'the digital world would look entirely different today' (b: would + infinitive — present result). Any four of the following: 'If the web had been commercialised from the start, equal access to information would not be the norm it is today'; 'If Fleming had not noticed that petri dish, modern medicine would still be fighting infections'; 'Millions of people who are alive today would not be here if antibiotics had not been developed'; 'If the discovery had been delayed by just a decade, the Second World War would have had a very different death toll'; 'If Gutenberg had not invented movable type, the Protestant Reformation might not have taken hold'; 'If mass literacy had not emerged from printing, the educated middle class that drives modern democracy would simply not exist.'
  2. The if-clause is 'if antibiotics had not been developed' — it uses the past perfect to describe an unreal condition in the past (antibiotics were developed; this imagines they were not). The result clause 'would not be here' uses would + infinitive to describe the present consequence of that imagined past: those people are alive NOW because of a past invention. The sentence links a past event to a present reality.
  3. b)
  4. (a) If penicillin had not been discovered, medicine would still be struggling to treat infections routinely. (b) If Gutenberg had not invented movable type, mass literacy would not exist today.
  5. Answers will vary. Answers will vary. Check: if + past perfect (unreal past condition) → would / might + base infinitive (present result)

Notice the Grammar — suggested answers

Accept any five correct examples from the article that use the target grammar. Students should be able to explain why the grammar is used in each case.

Personal Response

Answers will vary. This section is for spoken discussion or short written response. There are no single correct answers.