Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-23

Have you ever wondered why structures like cranes or bridges are so incredibly (21) __________? The secret often lies in a simple shape: the triangle. In structural engineering, not all shapes are equal. The triangle has a unique property that makes it essential for building stable structures, which is why engineers rely on it.

To understand this, first consider a square. If you push on a square frame, its corners bend easily, and it distorts into a diamond shape because its angles are not fixed. This tendency to deform can lead to structural instability. Due to this weakness, squares are less reliable for bearing heavy loads without extra support.

A triangle behaves very differently. When force is applied, it is distributed along the sides. This inherent rigidity makes the triangle the most stable geometric shape for building. Its fixed angles mean the structure resists deforming under pressure. Unlike a square, its angles cannot simply change to absorb force; the sides must either compress or stretch.

This principle is visible everywhere. The sides of the triangle work together to distribute the load. This is why you see networks of triangles in bridges and roof trusses. These structures (22) __________ the ability to support enormous weight over long distances, ensuring safety. Even bicycle frames use triangles to create a strong, lightweight body.

(23) __________ is this principle important for bridges, but it is also crucial for everything from radio towers to stadium roofs. The strength lies not in the material alone, but in the shape itself. (24) __________, the simple triangle is a cornerstone of safe and efficient engineering design.

Covering a famous song has become a recognized gateway for aspiring musicians to enter the competitive music industry. In the digital age, many artists find their initial breakthrough by reinterpreting popular hits. Globally, stars like Justin Bieber and Shawn Mendes famously launched careers posting covers on YouTube, leveraging existing fan bases. This phenomenon highlights a contemporary paradox: is re-recording an existing track a clever strategy for visibility, or does it signal a lack of artistic innovation? [I]

For many, the appeal of covering a well-known song lies in its accessibility and potential for rapid exposure. Rather than developing original material for years, an artist can instantly tap into an audience already familiar with the melody. A well-executed cover demonstrates vocal prowess or unique interpretation, riding the wave of an established hit's popularity. This approach significantly lowers entry barriers, allowing emerging talents to build a following and gain recognition faster than traditional routes might permit.

However, this path often faces critical debate regarding originality and artistic integrity. [II] In Vietnam, this discussion is particularly vibrant; singers like Hương Ly built immense careers solely through distinctive V-Pop cover versions. This success sparked widespread online debates about copyright, artistic value, and whether such reinterpretation truly constitutes original artistry. [III] The line between homage and appropriation often seems blurred.

For listeners, especially young audiences on platforms like YouTube and Spotify, cover songs hold unique appeal. You likely encounter them daily, enjoying new interpretations of favorite tracks or discovering fresh takes on classics. Covers offer a chance to hear a beloved song through a different artistic lens, sometimes revealing unnoticed nuances or transforming a track into a new genre. This reinterpretation keeps music fresh, allows for nostalgic connections, and broadens the musical landscape. [IV]

Ultimately, covering famous songs presents a complex interplay of opportunity and challenge. While it offers an accessible route for new talent to gain exposure and connect with a wide audience, it also ignites important conversations about artistic ownership, innovation, and the definition of originality. For both aspiring musicians and avid listeners, cover songs are more than re-recordings; they are a dynamic part of the global music ecosystem, constantly pushing boundaries and reshaping how we experience and value creative expression.