Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-143

Bird migration is one of nature's most (35) __________ events. Every year, millions of birds travel long distances, sometimes across entire continents. But why do they undertake such difficult journeys? The primary reasons are linked to two fundamental needs: finding food and escaping harsh weather. This behavior is not a choice but a powerful instinct developed over thousands of years.

The main reason for migration is the search for food. As winter approaches in the northern parts of the world, the days get shorter and colder. Because of this change, insects disappear and plants stop growing. Food becomes scarce, so birds (36) __________ travel to warmer climates where food is plentiful. This journey ensures they have enough energy to survive and reproduce.

The journey itself can be one of the (37) __________ challenges a bird will ever face. They fly for thousands of kilometers, often without stopping, from their breeding grounds to their winter homes. To do this, they must (38) __________ numerous dangers, including bad weather, predators, and the risk of exhaustion. Flying across vast oceans and high mountains requires incredible strength and stamina.

How do birds navigate these long distances so accurately? (39) __________ have scientists begun to understand the complex methods they use. It is believed that birds use the sun's position, the stars at night, and even the Earth’s magnetic field as a natural compass. (40) __________ allows them to follow the same routes year after year. Their navigational (41) __________ are truly remarkable.

(42) __________, migration is an essential survival strategy. It is a complex behavior driven by the simple need for food and a suitable climate. By moving between different locations, birds can take advantage of seasonal resources and avoid the life-threatening conditions of winter, ensuring their species continues to thrive across the globe.

The hum of excitement is growing in Ho Chi Minh City. Soon, the city's first metro line will begin operations, promising to transform the daily commute for millions. But this new system is more than just tracks and trains; it represents a significant cultural shift. As the city embraces this modern form of mass transit, its citizens will need to learn and adopt a new set of social rules for sharing public space, creating a unique 'metro culture' for a new era.

At the heart of this new culture is the concept of public transport etiquette. This refers to the unwritten rules of polite behavior that ensure a smooth and pleasant journey for everyone. For example, passengers will be expected to queue in an orderly line instead of crowding at the doors. It will be important to let people exit the train before new passengers get on. Furthermore, showing consideration for others is key. When passengers see elderly people, pregnant women, or those with young children, they should be ready to offer their seats. These simple acts of courtesy are fundamental to a positive shared experience.

The responsibility for a pleasant journey extends beyond just how we interact with each other. It also involves how we treat the physical environment of the metro itself. Keeping the stations and train cars clean is crucial. This means no littering, no spitting, and being mindful of eating food with strong smells that might bother others. This level of collective responsibility may be different from what people are used to on other forms of transport. A clean and well-maintained system is a direct result of its users' respect for the shared space, making the commute more comfortable and enjoyable for all.

The city's youth, particularly teenagers, have a special role to play in this transition. As some of the most frequent users, whether for school or socializing with friends, you will be on the front lines of this cultural change. By consciously practicing good metro etiquette, you can become role models for other passengers, both younger and older. This is a chance for your generation to demonstrate leadership and help establish a new standard of public behavior built on mutual respect and consideration for fellow citizens.

Ultimately, the success of the HCMC Metro will not be measured solely by its efficiency or technological sophistication. It will also be measured by the civility and cooperation of its passengers. The new metro line is a test, not just of new infrastructure, but of the community's willingness to adapt and evolve together. Building a positive metro culture is a collective effort that will define the public face of the city for years to come.