Đề ôn thi Đề thi vào lớp 10 Hải Phòng môn Tiếng Anh - Mã đề HPG-38

Your body has an amazing defense system called the immune system. It works 24/7 to protect you from harmful invaders like bacteria and viruses, (29) __________ can make you sick. The main 'soldiers' of this system are white blood cells. When they detect an enemy, they immediately (30) __________ a defensive response. Special proteins called antibodies (31) __________ to help identify and neutralize the threat.

Interestingly, your immune system has a memory. For instance, if you (32) __________ chickenpox as a child, your immune system remembers the virus. Therefore, you are very unlikely to get it again. This is why vaccination is so effective; it trains your immune system without causing the actual disease. (33) __________ a strong immune system is one of the best ways to stay healthy. You can support it by eating nutritious food and getting enough sleep. (34) __________, regular exercise also plays a vital role in boosting your body's natural defenses.

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.