Task reminder: Follow the transcript as the audio plays. Click on words that differ from what you hear. Negative marking applies — incorrect selections lose marks.

1. Sample Text 1 — Quantum Computing

Quantum computers use quantum bits, or qubits, which can exist in multiple states simultaneously — a property called superposition. This allows quantum computers to process certain types of problems far more rapidly than classical computers, which process information as binary digits of zero or one. Applications under development include cryptography, drug discovery, and optimisation problems in logistics.

Incorrect words — audio says: “qubits” matches; “faster” not “more rapidly”; “ones and zeros” not “zero or one”

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2. Sample Text 2 — Water Scarcity

Despite covering approximately seventy percent of Earth’s surface, the ocean’s saltwater is not directly usable for drinking or irrigation. Only about three percent of the planet’s water is fresh, and the majority of that is locked in glaciers and ice caps. Growing populations, agricultural demand, and climate change are intensifying pressure on available freshwater resources in many regions.

Incorrect words — audio says: “nearly” not “approximately”; “two percent” not “three percent”; “increasing” not “intensifying”

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