Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-159

Solar power is rapidly becoming a leading form of renewable energy. It works by converting sunlight directly into electricity using special panels. There is (35) __________ important advantage to this technology that is immediately clear: sunlight is an abundant and free resource available all over the world. This makes solar energy a dependable option for many communities.

The primary benefit of solar power is environmental. Unlike burning fossil fuels, solar panels do not (36) __________ any harmful greenhouse gases, which are a leading cause of global warming. It also avoids the air and water pollution associated with traditional power plants. This clean profile is essential for protecting our planet for future generations.

Another key advantage is economic. (37) __________ new technology and manufacturing improvements, the cost of solar panels has decreased significantly. This trend means more families and businesses can afford to install them. By generating their own electricity, users can (38) __________ their monthly energy bills, saving a substantial amount of money over time.

If the initial investment were even lower, many more people (39) __________ a solar system on their homes. Despite this cost, the long-term savings are compelling. Recently, a leading energy expert said that solar power (40) __________ a key role in the energy mix of most nations within twenty years, highlighting its growing global importance.

To accelerate this shift, governments are actively encouraging citizens (41) __________ to solar energy through financial incentives. For many, adopting solar is seen as (42) __________ in the fight against climate change—a powerful solution that offers a brighter, cleaner, and more sustainable future.

Have you ever finished a TV series on a streaming service like Netflix and felt a sense of surprise when the perfect recommendation appears almost instantly? It can feel like the service is reading your mind, suggesting a 'phim bộ' (TV series) that you were just thinking about. This isn't magic; it's the result of a highly complex and powerful system known as a recommendation algorithm, which is designed to understand your unique viewing preferences and keep you watching.

The foundation of this system is data – a massive amount of it. Every time you interact with the service, the algorithm is learning. It tracks which shows and movies you watch, which genres you prefer, what time of day you typically watch, and even the device you use. But it goes much deeper than that. Services like Netflix also meticulously analyze when you pause, rewind, or re-watch a particular scene. They even track when you abandon a show midway through an episode. This behavioral data provides a rich, detailed picture of your viewing habits.

One of the most common techniques these algorithms use is called 'collaborative filtering'. The system analyzes your viewing data and compares it to millions of other users. It identifies other users who have similar tastes to you and groups you all into what can be called a 'taste cluster'. For example, if you and many other people in Vietnam enjoyed the action series 'Hai Phượng' (Furie), you are likely part of a similar taste cluster.

Once you are part of a cluster, the algorithm works its magic. it looks at the viewing history of other people in your group to find movies and shows that they loved but you haven't seen yet. If many people in your cluster who watched 'Hai Phượng' also watched and highly rated a new Korean thriller, the algorithm predicts that you will probably enjoy that thriller too. This is how services can so often recommend a hidden gem that you might never have found on your own.

The personalization doesn't stop at show titles. The system even customizes the artwork or thumbnail it shows you for a movie or series. It might conduct A/B tests, showing different images to different users in the same cluster to see which one gets more clicks. By understanding how these sophisticated systems work, you become a smarter viewer. You're no longer just a passive consumer, but someone who understands the technology shaping your entertainment choices, helping you to discover new content more effectively.