Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-62

(23) __________ The solution was surprisingly simple and relied on basic physics. (24) __________

The incredible transformation from a tadpole to a frog is a perfect example of metamorphosis. A frog's life begins as a tiny egg, usually laid in a pond. After hatching, a tadpole emerges. This small creature is purely aquatic, breathing through gills and swimming with a long tail. It looks more like a fish than a frog.

As it grows, the tadpole undergoes amazing changes. It begins to develop hind legs, then front legs. Internally, its gills start to disappear while lungs develop to prepare it for life on land. (25) __________ the tadpole starts swimming to the surface to breathe air. If a tadpole's environment were to suddenly dry up, it (26) __________ not be able to survive this critical stage. The change is not just physical; the tadpole's diet also shifts from plants to insects. This complex process shows the powerful (27) __________ of its genetic programming. (28) __________ stage of this cycle is essential for its survival. Finally, the tail is absorbed, and the young creature (29) __________ a froglet, ready to leave the water. This journey (30) __________ egg to adult frog is truly fascinating.

The idea of a vacation often brings to mind airports and faraway destinations. However, a new trend called the "staycation" is becoming popular worldwide. A staycation is a holiday spent in your own country or city. People are choosing this option because it is more affordable, easier to organize, and better for the environment than traditional travel. It’s an adventure waiting right outside your door.

One of the biggest advantages of a staycation is the financial savings. Without expensive plane tickets or hotel bookings, you can enjoy a break without a large budget. Moreover, the planning is much simpler. Instead of spending weeks organizing a complex trip, a staycation can be a spontaneous weekend plan. This makes it a very convenient option for busy students and families seeking a quick escape from their daily routine.

In Vietnamese cities like Hanoi or Ho Chi Minh City, exploring your local area is easier than ever. With ride-hailing apps, you can effortlessly visit new neighborhoods. A staycation encourages you to be a tourist in your own town. This could mean discovering hidden cafes, visiting a small museum you’ve never noticed before, or exploring a local market. It’s about rediscovering places that might seem familiar but hold surprising secrets.

Ultimately, a staycation is less about where you go and more about your mindset. It's an opportunity to see your surroundings with fresh eyes and appreciate your hometown's unique character. For teenagers, it's a fantastic way to have fun with friends without a lot of money. A simple weekend exploring your own city can create lasting memories and a deeper connection to home.

Noise-cancelling headphones are an amazing invention for anyone needing to concentrate in a loud environment. They allow students and professionals to create a personal sanctuary of silence, blocking out distractions. This is especially useful in open-plan offices or busy public spaces. (37) __________. While this bubble is perfect for deep work, it can also act as a social barrier.

We might miss a friendly greeting from a colleague or an important safety announcement on public transport. (38) __________. The paradox is that a tool designed to improve our productivity can unintentionally weaken our social connections. (39) __________. Ultimately, finding a healthy balance is key to using this technology wisely. (40) __________.

A. These small missed interactions can add up over time

B. We should be mindful of when to tune in and when to tune out

C. However, their constant use can lead to a significant downside

D. This can lead to feelings of loneliness and disconnection from our immediate community