Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-161

Hydroelectric power is a leading source of renewable energy. (35) __________ the power of moving water allows us to generate electricity cleanly. First, a massive dam is built across a river, creating a large reservoir behind it. This reservoir stores a vast quantity of water, which holds a lot of potential energy.

(36) __________ start the process, special gates in the dam are opened. Water from the reservoir is channeled into a large pipe called a penstock. Due to gravity, the water flows with immense force down the penstock, gaining speed and pressure along the way. The entire structure must be incredibly strong to (37) __________ this pressure.

At the bottom of the penstock, the fast-moving water strikes the blades of a turbine, causing it to spin rapidly. The turbine is connected by a long metal shaft to (38) __________ generator. As the turbine turns, it also turns the generator. Power plants often (39) __________ multiple turbine-generator units to produce enough electricity.

Inside the generator, powerful magnets are used to convert the mechanical energy of the spinning shaft into electrical energy. An engineer once stated that the generator (40) __________ the most crucial component for this conversion. Finally, transmission lines carry this electricity from the power plant to our homes, schools, and businesses.

After passing through the turbine, the water is released back into the river. (41) __________, this process is an efficient way to produce power without burning fossil fuels. If we didn't use technologies like this, our carbon footprint (42) __________ significantly larger.

In the busy streets of Vietnamese cities like Hanoi and Ho Chi Minh City, a unique type of business is quietly challenging perceptions and creating opportunities. These are not typical spas, but social enterprises, often run by and for the blind and visually impaired. At places like the well-known Omamori Spa, the atmosphere is calm and professional. Here, the focus is not on what the therapists cannot do, but on the exceptional skill they possess in their hands, offering a service that is both therapeutic and a powerful statement of inclusion.

For many visually impaired people in Vietnam, finding stable employment can be a significant hurdle due to social stigmas and a lack of accessible opportunities. Social enterprises address this challenge directly. They are built on a sustainable business model, not charity, aiming to provide dignified work that offers financial independence. By creating a professional environment where skills are valued over disabilities, these centers empower their employees, allowing them to build careers, support their families, and participate fully in the economy.

The success of these massage centers lies in a fascinating paradox: what might be seen as a disadvantage becomes a remarkable strength. Visually impaired therapists often develop an extraordinarily heightened sense of touch. Without visual distractions, They can focus entirely on the muscles and tissues under their fingers, detecting knots and tension with a precision that sighted therapists may not achieve. This enhanced sensory ability allows them to provide a deeply effective and intuitive massage, turning their condition into a unique professional asset.

The impact of these businesses extends far beyond their employees. Every customer who walks through their doors participates in a subtle but important social change. They experience firsthand the high level of skill and professionalism of the therapists, which directly challenges any preconceived notions or stereotypes about disability. This positive interaction fosters greater understanding and respect within the community. Consequently, the business model serves a dual purpose: it is a financially viable enterprise that also functions as an effective tool for social advocacy.

Ultimately, massage centers run by the blind are more than just places to get a good massage. They are powerful examples of social entrepreneurship in action. They demonstrate that a business can be profitable while also solving a critical social problem, proving that creating an inclusive society is not only a moral goal but also a smart and sustainable business strategy. They offer a profound lesson in seeing ability where others might only see disability.