Đề ôn thi Đề thi vào lớp 10 Hải Phòng môn Tiếng Anh - Mã đề HPG-29

Canning is a fantastic method for preserving fruits long after they are harvested. The entire process requires careful (29) __________ to detail to ensure the food is safe to eat.

First, only fresh and ripe fruits are selected. They are washed thoroughly before being peeled and cut. Sometimes, the fruit pieces are briefly heated in hot water, a step (30) __________ is known as blanching. This stops enzymes from affecting the fruit's color and texture. (31) __________, the prepared fruit is packed tightly into clean glass jars. A hot liquid, usually a sugar syrup, is then added. This syrup not only adds sweetness but also helps to preserve the fruit's natural qualities. The jars must (32) __________ carefully sealed to be airtight.

Finally, the sealed jars are heated in boiling water for a specific time. This step, called processing, kills any harmful bacteria. It also creates the vacuum seal that (33) __________ the food inside for many months. Once cooled, the jars are stored in a cool, dark place. People who can fruits at home often say that they (34) __________ this tradition from their grandparents.

Living in a hot, humid climate like Vietnam's often means a daily battle to stay comfortable. Traditional fabrics like cotton absorb sweat but dry slowly, leaving you feeling sticky. Polyester, on the other hand, doesn't breathe well. For years, these were the main choices for everyday clothing. However, material science is now offering a high-tech solution to this common problem, moving beyond the limits of conventional textiles.

The secret lies in 'smart textiles' designed specifically for cooling. These innovative fabrics work in two main ways. First, they have excellent moisture-wicking properties, meaning they pull sweat away from the skin to the fabric's surface where it can evaporate quickly. This process mimics the body's natural cooling system but enhances it. Second, some advanced materials can manage thermal radiation, allowing the heat our bodies produce to escape more efficiently into the environment.

The benefits of these cooling fabrics are clear. They provide superior comfort during hot weather, making daily activities more pleasant. Furthermore, by helping people stay cool, these textiles could potentially reduce the reliance on air conditioning, leading to energy savings. While these high-tech materials are often more expensive than cotton or polyester, their popularity is growing as more people recognize their advantages. Local brands in Vietnam are also starting to incorporate these fabrics into their collections.

The future of clothing in warm climates looks promising. As technology improves and becomes more affordable, we can expect to see more of these smart textiles in our wardrobes. From school uniforms to office wear, science is paving the way for a future where our clothes actively help us beat the heat, making everyday life in places like Vietnam significantly more comfortable.