Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-129

Biomass is a fascinating form of (35) __________ energy. It is derived from organic matter, which means any material that comes from recently living plants or animals. The basic idea is to use this organic material as a fuel. Unlike fossil fuels, which take millions of years to form, biomass is part of the natural carbon cycle, making it a constantly available energy source.

There are many different (36) __________ that can be used for biomass energy. Common examples include wood from forests, specific crops grown for energy production like corn or sugarcane, and even waste from farms or cities. For instance, agricultural residue like straw, or organic garbage from our homes, can be converted into useful energy instead of being thrown away.

The most common way to convert biomass into energy is through direct combustion. In this process, the biomass is burned to produce heat. This heat is often used to boil water, which creates high-pressure steam. This steam (37) __________ then be used to turn a turbine, which powers a generator to (38) __________ electricity for homes and industries.

Using biomass has several advantages. Because it is part of a quick carbon cycle, it is considered a (39) __________ option than burning fossil fuels, which release ancient carbon into the atmosphere. It also provides a smart way to manage waste. By converting garbage and agricultural leftovers into power, we reduce the amount of material going into landfills. (40) __________ is a significant environmental benefit.

Hardly ever (41) __________ a single energy source offer so many benefits, from being renewable to helping with waste management. (42) __________, biomass is a vital component of the global effort to switch to more sustainable energy systems, helping to create a healthier planet for future generations.

Across Vietnam, from the bustling streets of Ho Chi Minh City to the quieter corners of Hanoi, a familiar sight unfolds every afternoon: teenagers gathered at popular coffee chains like Highlands Coffee or The Coffee House. Laptops are open, textbooks are spread out, and iced coffees are within arm's reach. This trend of using cafés as 'third places' for studying is a global phenomenon, but it has a unique vibrancy in Vietnamese youth culture. The central question, however, remains a topic of debate: does this popular study environment actually help or hinder academic performance?

Proponents of the coffee shop study session point to several benefits. Firstly, there's the unique atmosphere. Some research suggests that the low-level ambient noise of a café, often called 'white noise', can actually boost creativity and focus for certain types of tasks. Unlike the severe silence of a library, the gentle hum of conversation and espresso machines can prevent feelings of isolation. Furthermore, the light social pressure of being around other focused individuals can motivate a student to stay on task rather than procrastinate. And, of course, the ready access to caffeine and snacks provides the energy needed for long study periods.

However, the potential drawbacks are just as significant. For many students, the very same noise that helps some can be a major source of distraction. A sudden burst of laughter or a loud conversation can easily break concentration, which is especially damaging for tasks that require deep thought, like solving complex math problems. Additionally, practical issues such as finding a power outlet or dealing with an unstable Wi-Fi connection can cause significant frustration. These distractions can derail a study session. They can be particularly harmful when a student is on a tight deadline.

Ultimately, the effectiveness of a coffee shop as a study space appears to be highly dependent on two factors: the individual's personality and the nature of the work. A student who thrives on background noise and is working on a creative project, like brainstorming ideas for an essay or completing a group presentation, might find the café environment ideal. In contrast, a student who is easily distracted or is trying to memorize detailed information for an exam might find the same setting counterproductive. The key is self-awareness.

In conclusion, while the coffee shop study session is a dominant trend, it is not a one-size-fits-all solution. It offers a unique blend of stimulation and social energy that can be beneficial under the right circumstances. However, students must be honest with themselves about their own concentration levels and the demands of their tasks. Choosing a study environment wisely is a critical, yet often overlooked, component of effective learning.