Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-63

Our modern world runs on energy. From the lights in our homes to the cars on our streets, we need power for almost everything. But where does this energy come from? Generally, energy sources are divided into two main groups: non-renewable and renewable. Understanding the difference between these two is crucial for our planet's future.

Non-renewable energy comes from sources that are limited in supply. These include fossil fuels like coal, oil, and natural gas, which formed over millions of years. Once we use up the available supply, there will not be (21) __________ more for future generations. The burning of these fuels also has a significant negative (22) __________ on the environment, releasing harmful gases that contribute to air pollution and climate change.

On the other hand, renewable energy comes from sources (23) __________ naturally replenish themselves over a short period. Common examples are solar power from the sun, wind power, and hydropower from moving water. Because these sources are practically infinite, they are considered sustainable. They produce very few harmful emissions, making them a much cleaner alternative for generating electricity.

The main difference lies in their sustainability and environmental impact. Renewable energy is much cleaner. However, the initial cost to build solar farms or wind turbines can be higher than building traditional power plants. Non-renewable sources are often cheaper to extract and use in the short term, but their environmental cost is far greater. Both types of energy (24) __________ an important role in powering our world, but the balance is shifting.

As technology improves and awareness grows, the world is moving towards a more sustainable energy future. The global community is increasingly focused on transitioning to cleaner energy to protect the environment for years to come. While this change will not happen overnight, it is a necessary step for the health of our planet.

Travel photography has transformed from capturing memories to a performance, largely driven by social media. [I] Platforms like Instagram are saturated with breathtaking, seemingly perfect images of exotic locales and vibrant cityscapes. This content cultivates a desire among many travelers to not just visit, but to capture that elusive 'perfect' photo. The goal often shifts from authentic experience to curating a feed reflecting an idealized, often unattainable, version of their journey.

Yet, behind these picture-perfect squares lies a complex reality. What viewers see online is frequently a carefully staged moment, achieved after multiple takes or digital manipulation. This pursuit can turn a vacation into a photo shoot, where focus shifts from soaking in culture to finding the right angle or the most 'Instagrammable' spot. For young people, daily exposure to these polished images creates unrealistic travel expectations, overshadowing the messy, spontaneous, and truly memorable aspects of exploration. [II]

A compelling example of this global phenomenon playing out locally is Hanoi's 'Train Street'. What began as an ordinary residential alley, with tracks running inches from homes, rapidly became an international Instagram sensation. [III] Its unique charm, once understated, was amplified globally through countless perfect snapshots, drawing increasing crowds.

However, the reality of Train Street starkly contrasted with its serene online portrayal. The sheer volume of tourists seeking thrilling photos created significant safety hazards, leading authorities to periodically close sections. Local residents, whose daily lives were impacted by constant influx and risks, also voiced concerns. This illustrates the tension between the curated social media narrative and practical realities, where the quest for an iconic photo can disrupt local life and even endanger individuals. [IV]

As you scroll through endless feeds of seemingly flawless travel images, it's vital to develop a critical eye. Remember what you see online is often a highlight reel, not the full story. Travel is about discovery, embracing the unexpected, and connecting with new cultures, not just collecting beautiful pictures. While capturing memories is wonderful, prioritizing genuine experiences over the 'Instagrammable' moment will lead to richer, more meaningful adventures that resonate long after the likes fade.