Đề ôn thi Đề thi vào lớp 10 Hà Nội môn Tiếng Anh - Mã đề HN-58

(23) __________ . These small observations started happening more frequently after I bought my first digital camera. It quickly became clear that picking up this new hobby was fundamentally changing my perspective. (24) __________

Every autumn, many bird species prepare to (25) __________ a long journey south. This annual movement, known as migration, is a fundamental survival instinct. The primary reason for this behavior is the change in seasons. As winter approaches in the northern hemisphere, temperatures drop and food becomes less (26) __________. Insects disappear, and plants stop producing fruit, making it difficult for birds to find enough to eat. To survive, they must move to warmer climates. This strong instinct helps them avoid (27) __________ in the harsh winter conditions.

The journey itself is often the (28) __________ challenge of their lives, covering thousands of kilometers over oceans and continents. Young birds, making the trip for the first time, follow their parents. Amazingly, they seem to know the route (29) __________; it’s a natural ability. They find new food sources and a safe place to live until spring returns. (30) __________ is a remarkable strategy that has been perfected over thousands of years.

When you think about using water, you probably imagine drinking a glass of water or taking a shower. This is direct water use. But what about the hidden water in the things you buy? The 'water footprint' is a measurement of the total amount of hidden or 'virtual' water used to produce something. From the cotton in your t-shirt to the metal in your smartphone, almost everything has a water footprint, often much larger than you would expect.

The water footprint of food is particularly surprising. For instance, it takes about 140 liters of water to grow the coffee beans for just one cup of coffee. A single bar of chocolate requires around 1,700 liters. Some foods, like beef, have a massive water footprint; it takes over 15,000 liters of water to produce just one kilogram of beef! This hidden water accounts for most of the water we 'consume' each day.

This concept is highly relevant to Vietnam. As a major agricultural exporter of products like rice and coffee, which have large water footprints, the nation's water resources are under significant pressure. This makes sustainable water management a crucial issue for the country's future. Understanding the difference is key: products like beef and coffee have very high water footprints, while products like vegetables generally have a much lower one.

So, what can we do? The first step is awareness. By understanding our water footprint, we can start making more informed and sustainable choices. Choosing foods with a lower water footprint, or simply being mindful of the 'water cost' of our meals, can collectively make a big difference. It’s not about stopping consumption, but about consuming more thoughtfully to help protect our planet's precious water.

The journey of food from farm to table is often much longer than we imagine. This global food supply chain, while impressive, has a significant downside known as 'food miles'—the distance food travels. For example, fresh berries from South America in a European supermarket have traveled thousands of kilometers, (37) __________. This environmental cost is a serious concern for sustainability.

While global trade allows for year-round availability of various foods, (38) __________. Critics argue that we should prioritize local food systems, (39) __________. However, completely abandoning the global system is not simple, (40) __________.

A. as it ensures food security for many regions that cannot produce certain crops

B. consuming vast amounts of fuel for transport

C. it also contributes to a large carbon footprint

D. which can reduce transportation emissions and support local economies