Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-106

Wildfires are powerful natural events that can change landscapes dramatically. While (35) __________ wildfires are started by humans, often accidentally, nature has its own ways of igniting forests. These natural fires play a complex role in the ecosystem, clearing out old vegetation to make way for new growth. This passage will focus exclusively on how these fires begin without any human involvement.

The most common natural cause is a lightning strike, (36) __________ is essentially a massive spark of electricity from the atmosphere. During a thunderstorm, a bolt of lightning can hit a tree or the ground with incredible force and heat. This powerful energy (37) __________ into the ground in a fraction of a second, and its temperature can be hotter than the surface of the sun.

(38) __________, a lightning strike alone is not enough. The conditions on the ground must be just right for a fire to ignite. If the vegetation is extremely (39) __________ and there is plenty of fuel like dead leaves, pine needles, and grass, the heat from the lightning can easily start a flame. These materials are highly flammable when they lack moisture.

Once a fire starts, it can (40) __________ very quickly, especially if there is strong wind. Wind provides the fire with more oxygen and pushes the flames into new areas of fuel. The type of land is also important, as fires move faster up hills (41) __________ to the way heat rises. This combination of factors determines how large and intense a wildfire becomes.

In conclusion, the creation of a natural wildfire is a perfect storm of events. It requires a powerful ignition source, like a lightning strike, and very dry, flammable conditions on the ground. This combination can have a huge (42) __________ on the environment, reminding us of the immense power of natural forces.

From the battlegrounds of VNG's 'PUBG Mobile VN' to bustling online forums, a common sight unites millions of Vietnamese teenagers: the use of pseudonyms and avatars. Hardly anyone uses their real name or photo. Instead, they choose an 'in-game name' and a custom character that represents them in the digital world. This practice is so widespread that we often don't question it. But why do we do it? Are we simply having fun by creating a new persona, or are we hiding our true selves for other reasons? The answer is complex and reveals a lot about our relationship with the internet.

On one hand, creating an online identity can be a powerful form of self-expression and creativity. Choosing a name like 'ShadowDragon77' or designing an avatar with futuristic armor allows teens to explore aspects of their personality that they might not show in daily life. For a shy person, adopting a brave and outgoing persona can be a liberating experience, giving them the confidence to communicate and make friends. This digital disguise builds communities where people are judged by their skills or ideas, not their real-world status. It’s a chance to craft an identity from scratch, which can be an exciting and playful process.

On the other hand, the use of pseudonyms is a critical tool for privacy and security. The internet can be a dangerous place, and sharing real names, photos, or personal details can expose individuals to risks. By using a fake name, teens create a necessary barrier between their public online activities and their private life. This separation between one's real-life identity and online persona is a smart safety measure. It allows for free exploration and interaction in online spaces without the constant fear that a stranger could discover your home address or school. For many, it is not about hiding who they are, but protecting who they are.

However, this same shield of anonymity has a significant downside. When people feel that their actions have no real-world consequences, some are tempted to behave negatively. This is where the idea of 'hiding' becomes problematic. Anonymity can fuel cyberbullying, toxic comments, and disrespectful behavior in games and on social media. Without a real name attached to their profiles, some users feel empowered to say things they would never say face-to-face. This negative aspect demonstrates that the freedom granted by anonymity can sometimes be misused, harming the very communities it helps create.

Ultimately, using an avatar and a pseudonym is neither purely good nor bad. It is a dual-purpose tool. It can be a canvas for creativity and a shield for privacy, but it can also be a mask for negative behavior. The difference lies in the user's intention. As we continue to navigate our digital lives, it is crucial to understand both the power and the responsibility that come with crafting our online identities.