Casa ESL · C1 Advanced · Unit 20 of 20 · Step 2
Review: Advanced Transformations and Paraphrasing at C1 Level
Name
Date
Vocabulary
existential
adjectiveRelating to existence; in modern usage, posing a threat to the very existence of something.
"Climate change represents an existential threat to island nations."
transhumanism
nounA philosophical movement advocating for the enhancement of the human condition through technology.
"Transhumanism raises profound questions about what it means to be human."
exponential
adjectiveBecoming more and more rapid; increasing at an ever-accelerating rate.
"The exponential growth of computing power has outpaced all predictions."
convergence
nounThe coming together of different technologies, ideas, or trends.
"The convergence of AI, biotechnology, and nanotechnology is creating unprecedented possibilities."
dystopian
adjectiveRelating to an imagined state or society where there is great suffering or injustice.
"Dystopian fiction often serves as a warning about present-day trends."
stewardship
nounThe responsible management and care of something entrusted to one's charge.
"Environmental stewardship is an obligation we owe to future generations."
singularity
nounA hypothetical future point at which technological growth becomes uncontrollable and irreversible.
"Predictions about the technological singularity range from utopian to catastrophic."
intergenerational
adjectiveRelating to or involving different generations.
"Intergenerational equity demands that we consider the long-term consequences of our actions."
Grammar Focus
Review: advanced transformations and paraphrasing at C1 level
C1-level paraphrasing requires command of all the structures studied in this course: nominalisation, complex passives, hedging, subjunctive, advanced reporting, inverted conditionals, discourse markers, reduced relatives, formal register, emphatic structures, ellipsis, semi-modals, concession, hypothetical past, register shifts, and lexical cohesion. Effective paraphrasing preserves meaning while changing structure, and demonstrates the writer's ability to manipulate language flexibly. Key transformations include: active → passive, personal → impersonal, clause → noun phrase, informal → formal, and direct → reported speech.
Original: 'Scientists believe AI will transform society.' → Paraphrase: 'It is widely believed that the transformative impact of artificial intelligence on society is inevitable.'
Original: 'If we don't act now, it will be too late.' → Paraphrase: 'Were we to fail to take immediate action, the consequences would be irreversible.'
Original: 'The technology is amazing but also dangerous.' → Paraphrase: 'Much as the technology represents a remarkable advance, it poses significant risks.'
Original: 'People should have started planning earlier.' → Paraphrase: 'It is high time that comprehensive planning had been undertaken.'
Exercises
Exercise 1
Paraphrase each sentence using the structure indicated in brackets.
1. Scientists think that AI poses risks. (Impersonal passive) →
2. If the government doesn't invest now, the opportunity will be lost. (Inverted conditional) →
3. The technology is impressive, but it raises ethical questions. (Advanced concession with 'much as') →
4. People should start taking this seriously. (It's high time) →
5. The rapid development of AI has created new challenges. (What-cleft for emphasis) →
Exercise 2
Choose the best paraphrase for each sentence.
1. 'Nobody has ever faced a challenge like this before.'
2. 'If only we had prepared for this scenario.'
3. 'Experts say the trend will continue.'
Reading
What Comes Next
It is widely acknowledged that humanity stands at a crossroads. The convergence of artificial intelligence, biotechnology, and climate science has created a set of challenges and opportunities that are unprecedented in their scale and complexity. Were we to fail to address these challenges collectively, the consequences would be not merely inconvenient but existential. Much as technological optimists celebrate the possibilities of transhumanism and exponential innovation, the risks of uncontrolled development cannot be dismissed. Not only does the pace of change outstrip our capacity for regulation, but it also exceeds our ability to anticipate consequences. What concerns many thinkers is not technology itself but the structures of governance — or lack thereof — within which it operates. It is high time that intergenerational equity became a central principle of policy-making: the decisions taken today will shape the world inherited by those who had no voice in making them. Had previous generations exercised greater stewardship over the planet's resources, the current crisis would be far less acute. Granting that the future is inherently uncertain, it is incumbent upon us to act with both ambition and humility. The question is not whether the future will be transformed, but whether we will have shaped that transformation, or merely been swept along by it.
1. What does the passage identify as the central concern — technology itself or something else?
2. What principle does the passage argue should be central to policy-making, and why?
Speaking
Discuss these questions with a partner or your teacher.
Writing
Write a formal essay paragraph (8–10 sentences) on the topic: 'What is the most important challenge facing humanity, and how should we respond?' Use at least eight different C1 grammar structures studied across this course.
Example: It is widely acknowledged that climate change represents the most pressing existential threat of our era. Were the international community to fail in its response, the consequences would be irreversible. Not only has the scientific evidence become overwhelming, but the economic case for action has also strengthened considerably. Much as some governments resist the cost of transition, the cost of inaction is bound to be far greater. What is needed now is not merely incremental change but a fundamental transformation of the global energy system. Had previous generations invested more decisively in renewable technology, the current challenge would be less daunting. It is high time that intergenerational stewardship became the guiding principle of environmental policy. Granting that the path ahead is uncertain, the direction is not.
Answer Key — For Teacher Use
Exercise 1
1. It is thought that AI poses risks. / AI is thought to pose risks. · 2. Were the government not to invest now, the opportunity would be lost. · 3. Much as the technology is impressive, it raises ethical questions. · 4. It's high time people started taking this seriously. · 5. What the rapid development of AI has created is a set of new challenges.
Exercise 2
1. Never before has such a challenge been faced. · 2. Had we prepared for this scenario, the outcome might have been different. · 3. The trend is expected to continue.
Reading Comprehension
1. The passage argues the central concern is not technology itself but the structures of governance within which it operates — or the lack thereof. · 2. Intergenerational equity — because today's decisions shape the world inherited by future generations who had no voice in making those decisions.