Đề ôn thi Đề thi vào lớp 10 Hà Nội môn Tiếng Anh - Mã đề HN-145

My friend Alex has a very peculiar sense of humor. It’s not the kind of humor you find in comedy shows; it’s much more subtle and strange. (23) __________. (24) __________

In the vast ocean, the relationship between clownfish and sea anemones is one of the (25) __________ examples of symbiosis. A sea anemone’s tentacles are venomous, but the clownfish has a special mucus coating on its skin that provides (26) __________ from the stings. In return, the clownfish helps the anemone by cleaning it, luring in food, and scaring away predators. (27) __________ is a perfect example of mutualism, where both creatures help each other survive.

The clownfish will bravely (28) __________ guard over its home, ensuring no butterflyfish come too close. For a small clownfish, finding a safe home in a toxic anemone is a real (29) __________. It allows them to thrive in an otherwise dangerous environment. To do this safely, a young clownfish must slowly get used to the anemone, learning (30) __________ among the tentacles without being harmed.

The digital age offers endless information, but it also presents a huge challenge for students: constant distractions. For Vietnamese teenagers preparing for the highly competitive 'Thi vào 10' exam, a single notification from TikTok or Facebook can break their concentration. While technology is often the source of the problem, it also provides the solution in the form of specialized focus applications.

These "focus mode" apps are designed to help users regain control over their digital environment. Their main function is to temporarily block access to distracting websites and apps chosen by the user. For instance, a student can set a timer for 90 minutes to block social media while they study mathematics. This simple action creates a protected window of time, allowing for deep concentration without the temptation of endless scrolling.

The primary benefit of using these tools is the creation of a study environment free from digital noise. By actively eliminating pop-ups and notifications, students can enter a state of deep focus more easily. This improved concentration often leads to more efficient learning, meaning they can understand and remember information better in less time. As a result, students may feel less stressed and more confident in their exam preparation.

However, it is important to remember that these apps are not a complete solution on their own. They are powerful tools that support self-discipline but cannot replace it. Success in exams still depends on a well-organized study schedule and strong personal motivation. Ultimately, learning to use technology to manage its own distracting nature is a vital skill for the modern student.

Dams are often celebrated as sources of clean, renewable energy. However, their construction sets off a complex ecological chain reaction. When a river is blocked, a large reservoir forms behind the dam, flooding vast areas of land and destroying terrestrial habitats. (37) __________. Fish that migrate upstream to spawn, such as salmon, can no longer complete their life cycle. (38) __________.

Furthermore, dams trap sediments that would naturally flow downstream. (39) __________. The altered water flow and temperature below the dam also create an unnatural environment. (40) __________.

A. Without this regular supply of nutrients, the fertile land in downstream deltas can erode and shrink

B. The dam itself becomes a physical barrier, which is a major problem for many aquatic species

C. As a result, many native plants and fish struggle to survive, changing the ecosystem forever

D. This disruption affects not only the fish populations but also other animals in the food web