The concept of 'digital twin' has evolved from a niche engineering tool into a cornerstone of modern infrastructure management. A digital twin is a virtual replica of a physical asset, system, or process, continuously updated with real-time data from sensors and IoT devices. This dynamic model allows engineers to simulate scenarios, predict failures, and optimize performance without disrupting actual operations. For instance, in urban planning, digital twins of entire cities enable authorities to test the impact of new traffic policies or flood defenses before implementation. However, critics point out that the reliance on vast data streams raises concerns about cybersecurity and data privacy, while the high cost of implementation can exacerbate inequalities between wealthy and developing regions. Despite these challenges, proponents argue that the potential for increased efficiency and resilience makes digital twins indispensable for future sustainable development.
❓ 본문에 따르면, 도시 계획에서 디지털 트윈을 사용하는 주요 이점은 무엇인가?
A. 그들은 물리적 인프라 구축 비용을 절감합니다.
B. 그들은 실제 운영을 방해하지 않고 변경 사항을 시뮬레이션할 수 있게 해줍니다.
C. 그들은 모든 사이버 보안 위험을 제거합니다.
D. 그들은 인간의 의사 결정 필요성을 대체한다.
✅ 正确答案
They allow simulation of changes without disrupting real-world operations.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first