Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-50

The 'pack it in, pack it out' principle is a fundamental rule for responsible hiking. It means that everything you bring into a natural area, you must also carry out with you. (23) __________. (24) __________

A wireless mouse is a common computer peripheral offering freedom from cables. Its working (25) __________ is based on light and radio waves. It uses a small LED to shine light onto the desk surface, and a tiny camera sensor takes thousands of pictures per second to track movement. The internal processor analyzes these pictures to detect even the slightest motion.

Each tiny change is translated into directional data. This data is then sent (26) __________ a tiny transmitter to a receiver plugged into the computer. (27) __________, the cursor on your screen moves in real-time. The whole operation is incredibly fast. If the technology (28) __________ so efficient, we would all notice a frustrating delay between our hand movements and the cursor's reaction. It's great that we no longer have to (29) __________ with tangled wires, and (30) __________ user can enjoy a tidier workspace.

For centuries, the ideal Vietnamese family was a large, multi-generational household where three or even four generations lived together. This structure, known as “gia đình tam đại đồng đường,” was built on the foundation of filial piety, the deep respect children have for their parents and elders. Grandparents played a vital role in raising grandchildren, passing down traditions and stories, creating a strong, interconnected family unit.

However, modern Vietnam is witnessing a significant shift. The main driver of this change is urbanization. As more young people move from rural areas to big cities for better education and career opportunities, they often establish their own homes. This has led to the rise of the nuclear family, consisting only of parents and their children, which is becoming more common than the extended family model of the past.

This trend has both positive and negative consequences. On one hand, young couples enjoy more privacy and independence in a nuclear family setting. They have the freedom to make their own decisions about their lifestyle and how they raise their children. On the other hand, they may lack the daily support from grandparents, and some elderly parents might experience feelings of loneliness when living apart from their children.

Ultimately, the Vietnamese family is not being replaced but is transforming. While living arrangements are changing, the core value of filial piety remains strong. Young people continue to care for their elders, though they may express it differently – through frequent phone calls, financial support, and especially during family reunions like the Tết holiday.

Watching our favorite shows on Netflix or scrolling through TikTok seems harmless, but it has a hidden environmental cost. Every video we stream travels from massive data centers to our devices. These data centers, (37) __________, consume enormous amounts of electricity to run and stay cool. (38) __________.

In fact, some studies suggest that the carbon emissions from digital technologies are comparable to those of the aviation industry. (39) __________.

We can make a difference by taking simple steps, (40) __________ and reducing our overall screen time.

A. such as choosing standard definition instead of high definition for videos

B. Therefore, our collective digital consumption requires a surprisingly large amount of real-world energy

C. This energy often comes from burning fossil fuels, contributing significantly to our global carbon footprint

D. which are essentially huge warehouses full of powerful computers