Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-51

When you look at skyscrapers or long bridges, you might wonder how they can be so strong. A key component behind their stability is the I-beam. While the overall design of a structure is complex, the choice of (35) __________ is also critical. The I-beam is a fantastic example of smart engineering, providing incredible strength without being excessively heavy. This clever shape allows the beam (36) __________ immense weight, making it essential for modern construction.

The I-beam gets its name from its cross-section, which looks like the capital letter 'I'. An I-beam is (37) __________ two horizontal plates, known as flanges, which are at the top and bottom. These are connected by a thinner, vertical plate called the web. This specific arrangement is not accidental; it is a highly calculated design that maximizes the beam's performance under stress.

The secret to the I-beam's strength lies in how its parts work together. The flanges are far apart, which is important (38) __________ this placement helps resist bending forces effectively. The top flange resists compression, while the bottom flange resists tension. The web connects these two parts and resists shear forces. By concentrating material in the flanges, engineers are creating (39) __________ incredibly efficient and strong structural element.

The efficiency of the I-beam becomes clear when compared to a solid rectangular beam. If a solid rectangular beam of the same height were used, it (40) __________ significantly more material, making it heavier and more expensive. The I-beam uses material only where it is most needed, removing the less critical mass from the center. This is a perfect example of how the 'less is more' principle (41) __________ in engineering.

Due to its shape, an I-beam, usually made of steel, provides a superior strength-to-weight ratio. An experienced architect once said that he (42) __________ I-beams in almost all of his skyscraper designs because they were so reliable and cost-effective. Ultimately, the I-beam is a fundamental building block that combines simple geometry with core engineering principles to build the world around us.

For many teenagers in Vietnam, choosing a future career path is one of the most significant decisions they will make. This choice often brings a difficult dilemma: should you follow your own passion, or should you follow the advice of your parents? This is not just a personal issue but a cultural one, deeply connected to the concept of 'hiếu thảo', or filial piety. This long-standing tradition suggests that children have a duty to respect their elders' wishes, which often translates into choosing a career that parents believe is best.

Parents' recommendations usually come from a place of love and concern. They have witnessed economic uncertainties and want their children to have a secure and stable future. Therefore, their advice is often very pragmatic, pointing towards traditional sectors like medicine, law, engineering, or banking. These fields are widely respected and are perceived to offer financial security and a clear path for advancement. From their perspective, a career in the arts or a newer, less-established field is a risky gamble that could lead to financial hardship.

On the other hand, today's generation is exposed to a world of possibilities that were unimaginable to their parents. The rise of the digital economy has created entirely new career paths in fields like graphic design, content creation, professional gaming, and sustainable fashion. These fields offer young people a chance to turn their hobbies into a profession, to be creative, and to find deep personal fulfillment. While they may seem unconventional, many of these modern careers can also be financially rewarding and offer a different kind of stability built on skill and innovation rather than tradition.

So, must it be a choice between one or the other? Not necessarily. The key to navigating this challenge is open and honest communication. Instead of viewing it as a conflict, families can see it as a conversation. When teenagers can clearly explain their passion and present a realistic plan for how to pursue it, parents may become more open-minded. A successful outcome often involves finding a compromise. For instance, a student who loves video games could study computer science to become a game developer, blending a passion with a highly in-demand technical skill. This approach respects both the desire for personal happiness and the parents' wish for a secure future.

Ultimately, the decision is a personal journey. There is no single 'correct' path for everyone. Balancing filial piety with the pursuit of personal dreams is a modern challenge for many Vietnamese youths. It requires courage to express oneself, wisdom to listen to advice, and creativity to find a path that honors both your parents and yourself.