Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-29

The human spine, often called the backbone, is (35) __________ central support structure of the body. It plays a vital role in our ability to stand upright, bend, and twist. The spine is not a single, rigid bone; instead, it (36) __________ of 33 individual bones called vertebrae, which are stacked on top of one another. This complex column runs from the base of the skull down to the pelvis, providing a strong yet flexible framework for the body.

Located between each vertebra is a soft, cushion-like pad called an intervertebral disc. These discs are filled with a gel-like substance (37) __________ they can act as shock absorbers, protecting the spine from the stress of walking, running, and jumping. The discs are crucial for movement, as they allow for slight motion between the vertebrae. This structure is what allows the back (38) __________ in many different directions without causing damage to the bones.

The spine's design is a marvel of engineering. It has two primary functions: support and flexibility. It holds up the head, shoulders, and chest, and provides attachment points for the ribs and back muscles. If the spine (39) __________ completely rigid, we would not be able to perform simple actions like tying our shoes or looking over our shoulder. Its unique S-shaped curve helps to distribute weight evenly and maintain balance.

Protecting the spine is crucial for overall health. The spinal cord, a major part of the central nervous system, runs down the center of the vertebrae, where it is protected by the bony structure. My health teacher always emphasized that if we wanted to avoid injury, we (40) __________ to be careful when lifting heavy objects. It's important to (41) __________ your back by exercising regularly and maintaining good posture.

In conclusion, the spine is a remarkable and essential part of our anatomy. Its combination of strong vertebrae and flexible discs provides the support we need for daily activities while allowing for a wide range of motion. Understanding its structure and function is the first step towards maintaining its health. Proper care is not just a good idea; it is (42) __________ of a long and active life.

In the past, planning a holiday often meant a trip to a local travel agency. You would sit down with an agent, look through colorful brochures, and rely on their expertise to book your flights and hotels. Today, that entire process has been condensed into an application on your smartphone. For many, especially young people, the idea of using a traditional travel agent seems almost ancient. The power to explore the world is now literally at our fingertips, but does this convenience come at a cost?

The advantages of using travel apps are undeniable. Firstly, they offer unparalleled convenience. You can search for flights, book hotel rooms, or even reserve a local tour at any time of day, from anywhere you have an internet connection. Secondly, these platforms are powerful tools for budget-conscious travelers. With just a few taps, you can compare prices from hundreds of airlines and hotels, ensuring you get the best possible deal. Finally, the integration of user reviews and photos provides a layer of transparency that was previously hard to find. This wealth of information makes travel planning more accessible and democratic for everyone.

This global trend is clearly visible in Vietnam. For instance, booking inter-provincial travel used to involve a stressful trip to a crowded bus station with a high degree of uncertainty. Now, digital platforms like Vexere have completely transformed this experience. Users can browse routes, compare bus companies, view seat availability, and book their tickets online in minutes. They have not only simplified the logistics of domestic travel but have also introduced a level of reliability and safety that gives travelers, especially younger ones planning their first independent trips, greater peace of mind.

However, relying solely on your phone as a travel agent is not without its drawbacks. The sheer volume of options can be overwhelming, leading to 'analysis paralysis' where you spend hours searching but never making a decision. Another significant issue is the lack of personalized, expert support when things go wrong. If your flight is canceled or there's a problem with your hotel booking, you often have to navigate complicated automated customer service systems instead of speaking to a real person who can solve your problem efficiently. Furthermore, some platforms may have hidden fees that only appear at the final payment stage.

Ultimately, the statement that your phone is your new travel agent is largely true, but with an important condition. These apps are incredibly powerful tools that have revolutionized travel planning by making it cheaper and more convenient. However, a smart traveler understands their limitations. They know how to use these apps to their advantage while also being prepared for potential issues. The future of travel isn't about choosing between a phone and a human agent, but about knowing how to use the best of both worlds.