Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-116

Steel is one of the most important industrial materials in the world, used in everything from skyscrapers to cutlery. But how is this strong and versatile metal created? The journey begins with a raw material called iron ore, and the entire transformation process is quite fascinating. Fundamentally, steel (21) __________ by adding carbon to iron.

The first major step is heating the iron ore in a special, massive oven called a blast furnace, where temperatures can reach over 1,500 degrees Celsius. This intense heat melts the iron ore, separating the iron from other natural materials. The result of this stage is a hot, liquid iron, which is the base ingredient for making steel.

Once the liquid iron is ready, it is mixed with a carefully measured amount of carbon. This is the most critical part of the process, as it is the carbon that turns iron into steel, creating a new material known as an alloy. The amount of carbon added is vital because it determines how hard and strong the final steel will be.

(22) __________, other elements are sometimes added to give the steel special properties, such as resistance to rust. A crucial step is to (23) __________ impurities from the molten metal. (24) __________ these unwanted substances, like sulfur and phosphorus, must be cleared away as they can weaken the final product.

This final cleaning step has a significant effect on the steel's properties, ensuring it is much stronger and more durable than pure iron. Because of this enhanced strength and versatility, steel remains a cornerstone of modern construction and manufacturing.

From ancient heroes to modern innovators, humans have always looked for figures to admire and emulate. These individuals, often called role models, serve as powerful sources of inspiration, guidance, and a blueprint for success. They might be historical figures, celebrities, or even family members embodying values we aspire to. Their presence can significantly influence our aspirations, showing us what's possible and how to begin navigating our own paths. [I]

In Vietnam, this phenomenon is clearly visible among young people. Public figures like singer Sơn Tùng M-TP are prime examples, captivating many with their unique style and ambitious creative drive. He embodies a success that resonates beyond traditional academic fields, showcasing how passion and innovation can lead to widespread admiration. [II]

For teenagers, thinking about who you admire and why is more than just a casual thought; it's a profound exercise in self-discovery. [III] Whether your idol is a K-pop star, a scientist, or an older sibling handling challenges with grace, understanding their appeal clarifies your own values. What qualities do you find admirable – their discipline, curiosity, or resilience? Recognizing these traits in others helps identify what truly matters, serving as a vital step in setting meaningful goals for your own life.

This leads to an important question: do you need a role model? [IV] While many find immense benefit, it's not always about having one single, perfect individual to follow. Sometimes, inspiration comes from a mosaic of people, each contributing a different strength or lesson. You might learn work ethic from one, empathy from another, or creativity from a third. The key is to actively seek out positive influences, be they historical figures or everyday heroes in your community. Your "role model" might even evolve as you grow and your aspirations shift.

Ultimately, the power of a role model lies in their ability to illuminate possibilities and guide us. They offer tangible examples of dedication, innovation, and courage, providing a framework against which we measure our efforts and dreams. Whether you choose to follow a famous personality or draw quiet strength from someone closer to home, identifying and appreciating admirable qualities in others is a powerful tool. It helps us not only understand the world better, but also clarify our place within it, setting us on a path of continuous personal growth.