Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-178

Saturn, the sixth planet from the Sun, is famous for its spectacular ring system. These rings are not solid bands; instead, they are billions of tiny particles that (35) __________ the planet. While they look solid and bright from Earth, they are actually incredibly thin and wide, stretching out for thousands of kilometers.

For a long time, astronomers wondered what these rings were made of. We now know they are (36) __________ complex system consisting mostly of water ice. It's estimated that 99.9% of the material is pure ice. The remaining tiny fraction is composed of rock and dust. (37) __________, their high ice content is what makes them so bright and reflective.

The particles that make up the rings vary greatly in size. Some are as tiny as grains of dust, while others are as large as a house or even a small mountain. These countless pieces are not a single object but are (38) __________ individual moonlets. They are constantly colliding and breaking apart, creating a dynamic environment with pieces (39) __________ in size from microscopic to massive.

The origin of the rings is still debated. One leading theory suggests they are the remains of a moon or comet that was torn apart by Saturn's gravity. A scientist once reported that the rings (40) __________ younger than the planet itself. (41) __________ a spacecraft could fly through the gaps in the rings, it would have to navigate through this field of icy debris very carefully.

From a distance, Saturn's rings appear to be a magnificent, unified structure. However, each individual particle is like (42) __________ in the vastness of space. Understanding their composition helps us appreciate not just the beauty of Saturn, but also the complex and dynamic processes that shape our solar system.

Paragraph 1: For decades, the idea of a 'vacation' meant packing bags, booking flights, and traveling to faraway destinations. However, a new trend is capturing the imagination of travelers worldwide: the 'staycation'. A staycation is a holiday spent in your own country or, more commonly, your own city. Instead of dealing with the stress and expense of international travel, people are choosing to become tourists in their own hometowns. This shift is particularly popular among young people, who are discovering that adventure doesn't always require a passport.

Paragraph 2: There are several compelling reasons for the rise of the staycation. The most obvious one is financial. Staycations eliminate major costs like airfare and expensive hotels, making them a budget-friendly alternative. They are also significantly more convenient, requiring minimal planning and no time wasted in airports. Furthermore, staycations are a more sustainable choice. By reducing air and long-distance car travel, they lower one's carbon footprint. This makes exploring local parks, museums, and neighborhoods not just fun, but also an environmentally conscious decision. As a result, unique local experiences have become more accessible to a wider range of people.

Paragraph 3: In Vietnam, this global trend has a unique local flavor, largely thanks to technology. The development of modern services like ride-hailing apps, such as Grab and Gojek, has revolutionized how city dwellers navigate their surroundings. They make it incredibly easy and affordable to spontaneously decide to visit a new part of town. A teenager in Hanoi might use an app to discover a hidden café tucked away in a quiet alley, or a family in Ho Chi Minh City could easily plan a day trip to a district museum they have never visited before. This convenience removes many of the old barriers to local exploration.

Paragraph 4: For teenagers, a staycation is the perfect solution for a boring weekend. It offers a chance to see a familiar environment with fresh eyes and create new memories with friends without needing a long holiday or a big budget. The possibilities are endless. A cultural staycation could involve visiting a local art gallery or historical landmark. A foodie staycation might focus on trying street food in different neighborhoods. For those seeking relaxation, a simple day spent reading in a beautiful city park can be a wonderful escape. It’s about rediscovering the charm of places you might see every day but never truly notice.

Paragraph 5: Ultimately, the staycation sensation proves that you don't need to travel far to find excitement and relaxation. It encourages a deeper connection with our own communities and supports local businesses in the process. So, the next time you feel the need for an adventure, remember that one might be waiting for you just around the corner, ready to be discovered.