Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-130

Have you ever wondered why you need to sleep every night? It's not just about feeling less tired. Sleep is a (35) __________ process that is essential for our physical and mental health. We must get enough rest in order to function properly, because our bodies and brains are working hard even when we are not awake.

One of the main reasons for sleep is physical repair. During the day, our muscles and tissues work hard and can get tired. When we sleep, our body has the chance to heal itself. This process is crucial because it allows us to (36) __________ from physical stress and makes us feel strong again.

Sleep is also incredibly important for our brains. While we sleep, our brain is busy (37) __________ all the information it received during the day. This process, (38) __________ is called memory consolidation, helps us to strengthen important memories and forget unnecessary details.

Furthermore, we learn (39) __________ new things every day, from school lessons to social interactions. In order to remember these things effectively, a good night's sleep is necessary. When we are rested, it is easier to concentrate (40) __________ complex problems and be creative. Sleep helps restore our energy so we can face the next day's challenges.

(41) __________, many teenagers do not get the recommended eight to ten hours of sleep. This lack of rest can negatively (42) __________ their school performance, mood, and overall well-being. Therefore, everyone should make getting enough sleep a top priority for a healthy life.

Have you ever wondered about the corn in your snacks or the soybeans in your cooking oil? There's a chance they are genetically modified organisms, or GMOs. A GMO is any living thing—a plant, animal, or microorganism—whose genetic material has been altered in a laboratory using genetic engineering. This technology has sparked a major global debate. Supporters see it as a powerful tool to solve agricultural problems, while critics worry about the potential dangers to our health and the environment. As GMOs become more common in our food supply, understanding both sides of the argument is more important than ever.

The primary argument in favor of GMOs centers on their potential to improve agriculture. For instance, in Vietnam, the Ministry of Agriculture and Rural Development has approved the cultivation of certain types of GM corn. These corn varieties have been engineered to resist pests, which means farmers can use fewer chemical pesticides. This can lead to higher crop yields, as less of the harvest is lost to insects. The ultimate goal is to increase food production and potentially make food more affordable for everyone, representing a significant advancement for the nation's agricultural sector.

However, the conversation around GMOs is not all positive. Many people have serious concerns. Environmentally, there is a worry that GM crops could harm non-target insects, like butterflies, or cross-pollinate with wild plants, which could disrupt local ecosystems. From a health perspective, critics raise questions about the long-term effects of eating genetically altered food. While extensive testing is done, some fear that these modifications could introduce new allergens or have unforeseen consequences for human health. The debate is complex because both these modifications and their long-term effects are still the subject of ongoing scientific study.

Navigating this debate requires looking at the role of science and regulation. Before any GM crop is allowed to be grown or sold, it must undergo years of rigorous testing. Scientists evaluate its safety for human consumption and its impact on the environment. Government bodies, like the one in Vietnam, review this scientific data carefully before granting approval. This regulatory process is designed to minimize risks and ensure that the food on our plates is safe. However, the process itself is often debated, with some arguing it is not strict enough.

Ultimately, the topic of GMOs is not a simple one with easy answers. It sits at the intersection of science, economics, and personal choice. For teenagers today, the food you choose to eat is directly connected to this global discussion. By learning about the science behind genetic modification, the potential benefits, and the valid concerns, you can become an informed consumer. This knowledge empowers you to look at a product on the supermarket shelf and make a choice that aligns with your own informed opinion.