Đề ôn thi Đề thi vào lớp 10 Hà Nội môn Tiếng Anh - Mã đề HN-46

(23) __________ Through hands-on experience, they can acquire practical skills that are not always taught in a classroom. (24) __________

An avalanche is a rapid flow of snow down a slope, like a mountain. For one to happen, several conditions must be met. The (25) __________ important factor is an unstable snowpack. This usually occurs when a layer of fresh, heavy snow falls on top of a weaker, older layer. The new snow adds significant pressure.

When the slope is steep enough, gravity begins (26) __________ the snow downwards. The bond between the snow layers can be very delicate. Sometimes, even a small vibration from a skier or a loud noise can (27) __________ a chain reaction, causing a massive slab of snow to break loose and slide. (28) __________ creates an incredibly dangerous situation, as the moving snow can reach speeds of over 130 km/h. Skiers in these areas must be extremely careful. Any (29) __________ movement can be catastrophic. People say you must (30) __________ when faced with such danger, but it is often very difficult.

In a tropical country like Vietnam, the sun is a constant companion. We see people everywhere wearing ‘áo chống nắng’ and hats to shield themselves from its intense rays. While sunshine can boost our mood and provide Vitamin D, many people are unaware of the long-term damage it can cause. It's crucial for teenagers to understand that protecting their skin today is an investment in their future health.

The sun emits two main types of ultraviolet (UV) rays that harm our skin: UVA and UVB. UVA rays are the primary cause of premature aging, leading to wrinkles and dark spots as they penetrate deep into the skin. UVB rays are mainly responsible for sunburn. Over time, exposure to both types of rays can significantly increase the risk of developing serious conditions like skin cancer.

A primary defense is using sunscreen with a high Sun Protection Factor (SPF). For daily activities, SPF 30 is good, but for sports or beach days, SPF 50 is better. However, a single application is not enough. You must use a sufficient amount to cover all exposed skin and reapply it. Dermatologists recommend reapplying every two hours, as sweating and water can reduce its effectiveness. They also advise seeking shade during peak sun hours.

Developing good sun protection habits is a vital life skill. This isn’t just for trips to the beach, but for everyday activities like walking to school or playing football. By being smart about sun exposure now, you make a responsible choice that keeps your skin healthy for years.

For decades, the 'eight hours of sleep' rule has been a universal health guideline. However, modern sleep science challenges this one-size-fits-all approach, (37) __________. Factors like age, genetics, and lifestyle all play a crucial role. (38) __________.

Instead of strictly following this rule, experts recommend a personalized strategy. For instance, some people function better with a biphasic pattern, (39) __________. This contrasts with the monophasic pattern that the eight-hour rule assumes. (40) __________, rather than sticking to an arbitrary number.

A. The most important lesson is to listen to your body's signals of tiredness and alertness

B. suggesting that our individual sleep needs can vary significantly

C. Forcing a rigid eight-hour schedule on everyone might therefore be counterproductive

D. which involves a shorter nighttime sleep supplemented by a daytime nap