Đề ôn thi Đề thi vào lớp 10 Hà Nội môn Tiếng Anh - Mã đề HN-139

My professor's feedback on my essay was just one word: 'unclear.' Confused and wanting to improve, I scheduled a meeting to ask for more specific guidance. (23) __________. (24) __________

Have you ever wondered why ocean tides (25) __________ and fall every day? This amazing natural phenomenon is mainly caused by the gravitational pull of the Moon. As the Earth rotates, the Moon's gravity pulls on the water, creating 'bulges' on the side of the Earth closest to it and on the opposite side. The Sun also has a gravitational effect on our oceans, but it's much weaker because it's so far away.

When the Sun, Moon, and Earth align, their gravitational forces combine to create very high and very low tides. (26) __________, when the Moon and Sun are at right angles to each other relative to the Earth, their forces partially (27) __________ each other out, leading to weaker tides called 'neap tides'. This gravitational dance happens without fail. In fact, if the Moon disappeared, our planet's tides (28) __________ be much smaller and less regular. (29) __________ coastal ecosystem depends on this predictable cycle. Life in tidal pools, for instance, is specially adapted to the changing water levels (30) __________ these areas.

The idea of walking 10,000 steps a day is a popular fitness goal around the world. You’ve probably seen it on smartphones or fitness trackers. This target has encouraged many people to pay more attention to their daily physical activity. For teenagers, who walk to school or around their neighborhoods, thinking about daily steps can be a simple way to connect daily routines with health and well-being.

The benefits of regular walking are clear. It's a low-impact exercise, meaning it’s gentle on your joints. It improves heart health, boosts your mood, and can help you maintain a healthy weight. One of the best things about walking is that it is very accessible; you don't need expensive gym memberships or special equipment. Because it requires no special gear, anyone can start anytime, anywhere.

However, is 10,000 the magic number? Research shows that the origin of this number was actually a marketing slogan from a Japanese company in the 1960s, not a scientific standard. While it's a good target, it's not a rigid rule. Experts now suggest that the intensity of the walk matters too. A shorter, faster walk can sometimes be more beneficial than a long, slow stroll. The key is consistency.

In Vietnam, this focus on community fitness is easy to see. On weekends, the streets around Hoan Kiem Lake in Hanoi are full of people walking and enjoying the fresh air. Ultimately, whether you hit 10,000 steps or not, the most important thing is to build a consistent habit of moving your body every day. It’s a simple, free, and effective way to invest in your long-term health.

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