Đề ôn thi Đề thi vào lớp 10 Hải Phòng môn Tiếng Anh - Mã đề HPG-131

Long before modern wind turbines, windmills were a common sight in many parts of the world, especially in Europe. These structures used to (29) __________ a crucial role in daily life. Their main purpose was not generating electricity, but using wind power for mechanical tasks. For example, people used them for (30) __________ grain into flour or pumping water out of low-lying lands. The design was often simple but very (31) __________. Large sails, or blades, would catch the wind, causing a central shaft to turn.

This rotation powered gears and stones inside the mill to do the work. (32) __________ allowed communities to process food and manage water resources without relying on human or animal power. It was a groundbreaking invention for its time. While modern turbines are much taller and more powerful, the old windmills were often the (33) __________ structures in their villages. They were so important that, (34) __________, losing one could be a disaster for a small community.

Imagine drawing a detailed object on your computer and then, with the click of a button, watching a machine build it right before your eyes. This is the magic of 3D printing, also known as additive manufacturing. Unlike traditional methods that cut or carve material away, 3D printing builds objects layer by layer from a digital design. This technology is transforming industries from healthcare to engineering, and now it's making its way into the classroom.

For students, 3D printing opens up a new world of possibilities for schoolwork. Instead of just drawing a diagram, a biology student can print a detailed model of a human heart. For geography, you can create precise models of mountains and valleys, known as topographic maps. Art students can design and print unique sculptures or custom jewelry. This hands-on approach makes learning more engaging and helps students better understand abstract concepts by turning them into physical objects they can hold.

This wave of innovation is also present in Vietnam. Leading institutions like the Hanoi University of Science and Technology have set up 'Fab Labs' (Fabrication Laboratories) to give students access to this technology. These labs encourage students to move beyond simple school assignments and start tackling more complex challenges, preparing them for future careers in science and technology. It creates a bridge between theoretical knowledge learned in class and practical, real-world application.

Ultimately, the goal of bringing 3D printing into schools is not just to make interesting models. It's about empowering students to become creators and problem-solvers. When students can design, test, and refine their own creations, they learn valuable skills in critical thinking and perseverance. This technology shifts the focus from being a passive consumer of information to an active participant in the process of innovation, turning your imagination into reality.