Đề ôn thi Đề thi vào lớp 10 Thái Nguyên môn Tiếng Anh - Mã đề TNG-133

Have you ever wondered why airplanes sometimes fly faster in one direction than another? The answer often lies in the jet stream, a fast-flowing river of air high up in the atmosphere. These powerful winds blow from west to east and can reach speeds of over 400 kilometers per hour. The jet stream doesn't stay in one place; its position changes with the seasons. It has a significant (29) __________ on our weather, for instance, by separating colder air in the north from warmer air in the south.

Pilots can use this powerful wind. A long flight from Asia to North America, for instance, might (30) __________ by an hour. (31) __________, this saves a lot of fuel and reduces the flight time for passengers. If the jet stream didn't exist, our weather patterns (32) __________ dramatically. Many regions would experience more extreme temperatures. Because the jet stream is located high (33) __________ the Earth's surface, we can't see it directly. It seems that (34) __________ pilot needs to be aware of this invisible force for a safe and efficient journey.

In today's world, especially in countries like Vietnam where people spend over six hours online daily, the smartphone has become a central part of life for teenagers. From scrolling through social media to studying for the crucial high school entrance exam, your screen is almost always on. This has led to a growing global trend: the 'digital detox'. This means intentionally taking a break from all technology, like smartphones and computers, for a set period to improve one's well-being.

The primary reason people try a digital detox is to combat the negative effects of too much screen time. The constant notifications from apps can make it difficult to concentrate on important tasks like homework, leading to lower academic performance. Furthermore, using electronic devices late at night can disrupt sleep patterns, causing tiredness and affecting mental health. This cycle of distraction and exhaustion can create significant stress for students.

However, the benefits of a digital detox, even a short one, can be substantial. By disconnecting, you give your brain a chance to rest and recharge. This can lead to improved focus and creativity. Many teenagers report feeling less anxious and sleeping better after a technology-free weekend. This break isn't about rejecting technology forever; it is a temporary strategy to regain control and find a healthier balance between your online and offline worlds.

Ultimately, the goal of a digital detox is not to escape modern life, but to engage with it more mindfully. Could you manage a weekend without your phone? Perhaps starting with just a few hours could be a powerful first step. For a student facing intense academic pressure, finding this balance might be one of the most important skills to learn for both academic success and long-term happiness.