Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-89

(23) __________ . This frustrating cycle of failure and repetition is a universal part of the experience, revealing a fundamental truth about acquiring the skill. (24) __________

Have you ever wondered how the simple red bricks used in many buildings are made? The process starts with clay, a natural material found in the ground. For centuries, people (25) __________ this method to create strong building materials. First, the raw clay is dug up and cleaned to remove stones and plants. It is then mixed with water and sand to (26) __________ the right consistency.

(27) __________, the wet clay is shaped into blocks. This is often done by machines that press the clay into molds. The soft, wet bricks are then taken to a special drying area to dry slowly. The final stage is firing. The dried bricks are placed in a huge oven called a kiln, (28) __________ can reach very (29) __________ temperatures of over 1000°C. This intense heat changes the clay's structure. The whole process shows how a soft natural material (30) __________ into a fundamental building block.

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.

As the world's population grows and climate change affects rainfall, many regions face severe water shortages. Desalination, the process of removing salt from seawater, is seen as a high-tech solution to this growing crisis. Modern desalination plants use a technology called reverse osmosis, which pushes seawater through special membranes to filter out the salt. (37) __________.

However, this technology is not without its problems. The process is extremely energy-intensive, making it expensive and contributing to greenhouse gas emissions. (38) __________. Furthermore, desalination produces a highly concentrated salt solution called brine. (39) __________. Scientists are now working on developing more efficient and environmentally friendly desalination methods to overcome these challenges. (40) __________.

A. Their goal is to make desalination a truly sustainable solution for a thirsty world

B. This high energy consumption is a major obstacle for many developing countries

C. This method provides a reliable source of fresh water for coastal cities

D. This waste product is often pumped back into the ocean, harming marine ecosystems