Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-20

The Great Wall of China is one of the world's most impressive structures, stretching for thousands of kilometers. It was not built as a single project but as a series of walls and fortifications by different Chinese dynasties. The primary goal was to create a massive, defensive barrier to protect Chinese states and empires from nomadic groups of the northern steppes. It stands as a powerful symbol of China's historical strength and persistence.

The construction happened under various emperors and dynasties over a long period. Builders used local materials that were available in different regions. In the mountains, they used stone; on the plains, they used earth and brick. The materials, which were selected for their durability and availability, were often carried for long distances by human labor and simple machines.

Many strategic features were built (21) __________ the wall's length. These included watchtowers, troop barracks, and fortresses. (22) __________ watchtower was positioned on a high point to give soldiers a clear view of the surrounding area. From these towers, soldiers could send signals using smoke or fire to warn of an approaching enemy. These parts helped soldiers keep watch for enemies.

The popular image of the Great Wall as a single, continuous structure is not entirely accurate. (23) __________, it is a complex system of walls, some parallel to each other, with fortresses and other defensive buildings integrated into it. The path of the wall travels across deserts, grasslands, mountains, and plateaus, making it an incredible feat of engineering that adapted to the natural landscape.

Today, the Great Wall is a UNESCO World Heritage (24) __________ and one of the most recognized landmarks globally. It attracts millions of visitors each year who come to walk on its ancient stones and marvel at its scale. The wall is more than just brick and stone; it is a monument to the history and culture of the Chinese people.

The digital age has revolutionized how we connect, breaking down geographical barriers and allowing friendships to blossom across continents. It’s exciting to meet people from diverse backgrounds, sharing interests from gaming to specific hobbies. From social media platforms to niche online forums, the internet offers endless opportunities to expand your social circle. However, this vast interconnectedness, while offering immense benefits, also introduces a complex layer of uncertainty regarding who you are truly interacting with. [I]

Unlike face-to-face interactions where non-verbal cues and shared physical spaces help build trust, online relationships often lack these crucial elements. [II] The person you believe is a friendly peer from a gaming community could, in reality, be someone entirely different, perhaps older, with intentions far removed from genuine friendship. [III] They might present a fabricated persona, making it challenging to discern sincerity from deception. [IV]

This deceptive reality isn't just theoretical; it's a tangible threat with real-world consequences. Law enforcement in cities like Ho Chi Minh City frequently warn about sophisticated online scams. These schemes often involve criminals patiently building trust over weeks, posing as a sympathetic friend or romantic partner. Once a deep emotional connection is established, they exploit this fabricated bond, often by creating a fake crisis or lucrative opportunity, to solicit money or personal information, leaving victims vulnerable.

For teenagers, navigating online communities can be particularly tricky. You might spend hours in online games with teammates who feel like friends, or chat on Discord servers. These platforms are fantastic for connecting with like-minded individuals, but distinguishing between a fun online acquaintance and a true friend is crucial. Sharing your real name, school, address, or too much about your daily routine with an online ‘friend’ can inadvertently make you a target. The friendly gamer might be gathering information for malicious purposes.

While the internet provides incredible avenues for connection, adopting a cautious and critical mindset is paramount. Always remember that not everyone online has your best interests at heart. Treat personal information as highly sensitive data, and never share anything with an online acquaintance that you wouldn't tell a stranger. If something feels off, or if an online 'friend' asks for money or highly personal details, it’s a clear red flag. Protecting yourself online means prioritizing safety over perceived popularity, ensuring your digital interactions remain positive and secure.