Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-70

Energy conversion is a fundamental (35) __________ of science. It explains how energy, which is the power to do work, changes its form. Energy exists in (36) __________ different forms, such as chemical, electrical, light, and heat. The most important rule to remember is that energy cannot be created or destroyed; it simply changes from one form (37) __________ another. This idea is central to understanding physics and the world around us.

So, what does it mean to 'convert' energy? To convert means to change something from one form or character into another. This process of transformation is called energy conversion, and it (38) __________ place constantly. When we talk about using energy, we are usually talking about converting it. For instance, we turn electrical energy into light energy to see in the dark.

Everyday objects are great examples of energy conversion. For example, a lamp is a simple device (39) __________ converts electrical energy into light and heat. Similarly, a plant uses photosynthesis to change light energy from the sun into chemical energy, which it stores in its leaves and stem. Even a moving car turns the chemical energy in fuel into kinetic energy, the energy of motion.

Our own bodies are amazing energy converters. The chemical energy from the food we eat (40) __________ into kinetic energy for movement, which allows us to walk, run, and play sports. (41) __________, some of this energy becomes heat, which helps maintain our body temperature, keeping us warm even on a cold day. This conversion is always happening inside us.

In conclusion, energy conversion is a process that happens everywhere, from the smallest plant to the largest power station. Understanding energy conversion is (42) __________ for seeing how the world works, from our technology to our own biology. It is not about making new energy, but about transforming the energy that already exists into a form that is useful for a specific purpose.

In the world of business, few stories are as inspiring as that of Nguyễn Thị Phương Thảo. As the CEO of VietJet Air and Vietnam's first self-made female billionaire, she has become a national icon of success. Her journey from a young student selling goods to the leader of a major airline demonstrates that vision and determination can break down any barrier. This narrative is not just about wealth, but about transforming an entire industry and inspiring a new generation of entrepreneurs in Vietnam and beyond.

Thảo's entrepreneurial spirit ignited during her time as a university student in Moscow, Russia. From modest beginnings, she recognized an opportunity. While studying finance and economics, she began trading goods, importing fax machines and rubber from Asia to sell in Russia. She earned her first million dollars at the young age of 21. This early success was not due to luck, but to her sharp business sense, tireless work ethic, and ability to identify market needs long before others did.

Upon returning to Vietnam, Thảo saw another, much larger opportunity. At the time, the airline industry was dominated by a state-owned carrier, and air travel was considered a luxury reserved for the wealthy. Thảo believed this needed to change. She envisioned an airline for everyone—a "low-cost carrier" that would make flying as common as taking a bus. However, breaking into the airline industry was incredibly challenging; it was a sector with high costs and strict regulations. Her vision was radical: to democratize the skies for millions of Vietnamese people.

Launching VietJet Air was not easy. Thảo faced considerable skepticism from those who believed a low-cost airline could not succeed in Vietnam. To stand out, she employed innovative and sometimes controversial marketing strategies. Most famously, the airline gained international attention for featuring bikini-clad flight attendants in some promotional campaigns. While this move drew criticism, it also generated enormous publicity, helping to establish VietJet as a well-known brand very quickly and distinguishing it from its more traditional competitors.

Today, VietJet Air is one of Southeast Asia's largest airlines, flying millions of passengers annually. Nguyễn Thị Phương Thảo's impact extends far beyond her company's balance sheet. She has fundamentally changed how people travel in Vietnam and has become a powerful role model, especially for young women. Her story serves as a potent reminder that one's starting point does not dictate one's destiny and that a bold vision, backed by resilience, can truly change the world.